24/7 Emergency Service

National Heating and Air Conditioning is here to help with 24/7 emergency HVAC services. Call us today at 513-621-4620 if you have an urgent issue in the Greater Cincinnati area! Whether your heat won’t come on during a cold snap or you’re struggling with no AC in the summer, our expert HVAC professionals are available day or night.

Heating & Air Conditioning Services in Cincinnati, OH 45243

Madeira and Indian Hill stretch along some of Cincinnati’s busiest east side corridors, including Camargo Road, Miami Avenue, and Kenwood Road. Between older Cape Cod homes near downtown Madeira, larger properties throughout Indian Hill, and finished basements common around Sellman Park and McDonald Commons, homeowners here deal with a wide range of heating and cooling challenges throughout the year.

National Heating & Air Conditioning has been serving Cincinnati homeowners since 1930, and our technicians continue working throughout the 45243 area every week. If your furnace, AC system, heat pump, or water heater is struggling to keep up, call 513-621-4620 or contact National Heating & Air Conditioning online to schedule service.

A Long History of Serving Madeira & Indian Hill Homeowners

National Heating & Air Conditioning has been working in neighborhoods throughout Madeira and Indian Hill for generations. Homes near Euclid Avenue and downtown Madeira often date back to the 1940s and 1950s, while properties throughout Indian Hill tend to be larger custom homes that require multiple HVAC systems, zoning controls, and advanced humidity management. Our technicians regularly work near Miami Avenue, Camargo Road, Kugler Mill Road, and throughout the neighborhoods locals simply refer to as “The Village.”

We also service homes near Madeira Elementary, Indian Hill High School, and the residential streets surrounding Murray Avenue and Dawson Road. Because we already service so many homes throughout Madeira, Indian Hill, and the 45243 area, we understand the equipment setups, airflow problems, and seasonal comfort issues homeowners here run into year after year.

Air Conditioning & Cooling Services in Madeira & Indian Hill

Summer cooling problems throughout 45243 often go beyond simply replacing an AC unit. Older Madeira homes with original layouts can struggle with uneven airflow between floors, while larger Indian Hill homes may rely on several separate systems working together to cool the property evenly. National Heating & Air Conditioning provides:

  • AC Repair
  • Emergency AC Repair
  • AC Installation
  • AC Replacement
  • AC Maintenance
  • Ductless Mini-Splits
  • Heat Pumps

Heating Services in Madeira & Indian Hill

Winters in Cincinnati place a heavy workload on heating systems, especially in older homes with aging furnaces, original ductwork, or boiler systems that have been operating for decades. The colder-than-average winter conditions at the end of 2025 caused a noticeable increase in furnace strain throughout 45243, particularly in homes with older heat exchangers and neglected maintenance. Heating services available throughout Cincinnati’s east side include:

  • Emergency Heating Repair
  • Heating Repair
  • Heating Installation
  • Heating Replacement
  • Heating Maintenance
  • Furnaces
  • Boilers
  • Geothermal Service
  • Heat Pumps

Boiler systems are still common throughout parts of Madeira and Indian Hill, especially in older brick homes near Euclid Avenue, Given Road, and sections surrounding downtown Madeira that were built before central air became standard.

Water Heater Services in Madeira & Indian Hill

Finished basements are extremely common throughout neighborhoods near Camargo Club, Madeira neighborhoods off Hosbrook Road, and many homes throughout Indian Hill, which means water heater failures can quickly turn into expensive cleanup situations. We regularly help homeowners replace aging tank water heaters before leaks damage flooring, drywall, or storage areas. National Heating & Air Conditioning provides:

  • Water Heater Installation
  • Water Heater Repair
  • Tankless Water Heaters
  • Tankless Water Heater Installation
  • Tankless Water Heater Repair

Many homes throughout Madeira still have older water heaters approaching the end of their lifespan, especially in homes built during the post-war housing boom. Hard water buildup can also reduce efficiency over time and shorten the lifespan of heating elements and internal components. Tankless systems have also become more popular throughout Indian Hill and newer renovated homes where homeowners want longer hot water supply, improved efficiency, and more usable mechanical room space.

Commercial HVAC Services in Madeira & Indian Hill

Madeira and Indian Hill include a mix of professional offices, restaurants, schools, churches, and local businesses throughout the Miami Avenue corridor, Kenwood Road, and areas surrounding Madeira’s downtown business district. Commercial systems here often require careful maintenance because many buildings are older and were renovated over time. Commercial HVAC services include:

  • Commercial AC
  • Commercial Heating
  • Commercial Boilers
  • Commercial Heat Pumps

We regularly work with commercial properties that rely on older boiler systems, rooftop equipment, or multi-zone configurations to keep larger spaces comfortable. Churches, schools, and institutional buildings throughout this part of Cincinnati often require specialized airflow management because of tall ceilings and older building layouts.

Why Homeowners Throughout Madeira & Indian Hill Continue Choosing National Heating & Air Conditioning

Homeowners throughout Madeira and Indian Hill continue calling National Heating & Air Conditioning because they want technicians who explain problems honestly and take the time to solve them correctly. Our team already works throughout Madeira, Indian Hill, Terrace Park, and nearby east side neighborhoods every week, allowing us to respond quickly when homeowners need service.

Homeowners throughout Madeira, Indian Hill, and 45243 continue choosing National Heating & Air Conditioning because we provide:

  • Experienced HVAC technicians
  • Emergency repair availability
  • Long-term local service history dating back to 1930
  • Honest recommendations without pressure
  • Maintenance plans for long-term system performance
  • Help with both older and high-efficiency equipment
  • Clear communication throughout the repair process

Homes throughout Madeira and Indian Hill often contain a combination of older infrastructure and modern upgrades, which requires technicians who know how to work with both aging systems and newer high-efficiency technology.

What Cincinnati Area Customers Are Saying

“Kevin Gaines is awesome. He’s friendly and so competent. He answered many questions I asked about the furnace. I had questions about the water heater as well and he went the extra mile to send pictures and get answers from the proper person. I’m sold on the company thanks to Kevin!”

Gerald Y. – Rated 5/5 Stars

“We couldn’t be more pleased with Kevin’s services this week. He assessed the problem for us on Sunday and had our heat pump back up on Wednesday. Kept the temperature needed in furnace mode in between. We’re in Florida most of the year, so we’re totally dependent on his skills.”

Jan J. – Rated 5/5 Stars

“Jonathan Eaves was very kind and helpful. Checked out system and was able to fix a small issue quickly and also explain how we can prevent the issue from reoccurring. Wonderful service right before a large snow storm!”

Billy T. – Rated 5/5 Stars

Schedule HVAC or Water Heater Service in Madeira & Indian Hill

If your home in Madeira, Indian Hill, Miami Hills, Terrace Park, or the surrounding east side communities needs heating, cooling, geothermal, commercial HVAC, or water heater service, National Heating & Air Conditioning is ready to help. Our technicians already work throughout this part of Cincinnati every week and understand the types of systems local homeowners rely on every season.

Call 513-621-4620 or contact National Heating & Air Conditioning online today to schedule service in Cincinnati, OH 45243.

Recent Jobs and Reviews in Cincinnati, OH

Cincinnati, OH at a glance

National Heating and Air Conditioning has completed 20 jobs in Cincinnati, OH in April 2026.

The most recent job was on April 14, 2026.

Job Locations and Reviews

Completed full commercial HVAC system replacement including installation of Bryant Legacy 912SE60100M21 100,000 BTU gas furnace, Bryant Legacy 134SAN04800N 4-ton air conditioner with R454B refrigerant, and CVAVA4821XMA cased vertical evaporator coil. Removed existing deteriorated equipment and constructed new sheet metal return air box to replace rusted original unit with holes and structural drooping. Installed new outdoor condenser pad with gravel base for proper drainage and equipment stability, replaced electrical disconnect box with new fuses, and installed new thermostat for system control. Purged lineset with nitrogen during installation to ensure system cleanliness, reconnected all existing utility connections including drain line, gas line, and flue piping. Installed filter rack for improved maintenance accessibility and completed all electrical, refrigerant, and ductwork connections per manufacturer specifications.
Completed full commercial HVAC system replacement including installation of Bryant Legacy 912SE60100M21 100,000 BTU gas furnace, Bryant Legacy 134SAN04800N 4-ton air conditioner with R454B refrigerant, and CVAVA4821XMA cased vertical evaporator coil. Removed existing deteriorated equipment and constructed new sheet metal return air box to replace rusted original unit with holes and structural drooping. Installed new outdoor condenser pad with gravel base for proper drainage and equipment stability, replaced electrical disconnect box with new fuses, and installed new thermostat for system control. Purged lineset with nitrogen during installation to ensure system cleanliness, reconnected all existing utility connections including drain line, gas line, and flue piping. Installed filter rack for improved maintenance accessibility and completed all electrical, refrigerant, and ductwork connections per manufacturer specifications.
Erik M.
Erik M. Checked in
Completed full commercial HVAC system replacement including installation of Bryant Legacy 912SE60100M21 100,000 BTU gas furnace, Bryant Legacy 134SAN04800N 4-ton air conditioner with R454B refrigerant, and CVAVA4821XMA cased vertical evaporator coil. Removed existing deteriorated equipment and constructed new sheet metal return air box to replace rusted original unit with holes and structural drooping. Installed new outdoor condenser pad with gravel base for proper drainage and equipment stability, replaced electrical disconnect box with new fuses, and installed new thermostat for system control. Purged lineset with nitrogen during installation to ensure system cleanliness, reconnected all existing utility connections including drain line, gas line, and flue piping. Installed filter rack for improved maintenance accessibility and completed all electrical, refrigerant, and ductwork connections per manufacturer specifications.
CIncinnati, OH 45242
Conducted comprehensive assessment of existing commercial HVAC air handler unit located in basement mechanical room. Documented current equipment configuration including air handler, ductwork connections, PVC condensate drainage system, and proximity to fire suppression piping. Evaluated unit condition, spatial constraints, and mechanical room infrastructure to provide accurate replacement estimate for new commercial air handling equipment.
Conducted comprehensive assessment of existing commercial HVAC air handler unit located in basement mechanical room. Documented current equipment configuration including air handler, ductwork connections, PVC condensate drainage system, and proximity to fire suppression piping. Evaluated unit condition, spatial constraints, and mechanical room infrastructure to provide accurate replacement estimate for new commercial air handling equipment.
Victoria M.
Victoria M. Checked in
Conducted comprehensive assessment of existing commercial HVAC air handler unit located in basement mechanical room. Documented current equipment configuration including air handler, ductwork connections, PVC condensate drainage system, and proximity to fire suppression piping. Evaluated unit condition, spatial constraints, and mechanical room infrastructure to provide accurate replacement estimate for new commercial air handling equipment.
Cincinnati, OH 45202
Cincinnati, OH - Completed estimate for air conditioning system replacement serving second floor zone. Assessed existing equipment, evaluated electrical service capacity at main distribution panel, and documented current system configuration. Provided replacement options and recommendations for upgraded cooling system to address second floor comfort needs.
Victoria M.
Victoria M. Checked in
Completed estimate for air conditioning system replacement serving second floor zone. Assessed existing equipment, evaluated electrical service capacity at main distribution panel, and documented current system configuration. Provided replacement options and recommendations for upgraded cooling system to address second floor comfort needs.
Cincinnati, OH 45241
Completed full commercial HVAC system installation including Bryant GA4SAN524 2-ton air conditioning condensing unit and CVAVA2414 matching evaporator coil. Fabricated and installed custom sheet metal transitions to connect new coil to existing supply and return ductwork, ensuring proper airflow distribution throughout the system. Installed return air filter rack for improved filtration and maintenance accessibility. Ran and connected refrigerant lines from outdoor condensing unit to indoor coil, pressure tested system for leaks, and evacuated lines to manufacturer specifications. Made all necessary electrical connections including disconnect box and verified proper voltage and amperage readings with multimeter. Properly disposed of existing equipment in accordance with EPA regulations for refrigerant recovery and equipment recycling. Secured all required permits and completed final system startup, verifying proper operation of all components including compressor, condenser fan, and re
Completed full commercial HVAC system installation including Bryant GA4SAN524 2-ton air conditioning condensing unit and CVAVA2414 matching evaporator coil. Fabricated and installed custom sheet metal transitions to connect new coil to existing supply and return ductwork, ensuring proper airflow distribution throughout the system. Installed return air filter rack for improved filtration and maintenance accessibility. Ran and connected refrigerant lines from outdoor condensing unit to indoor coil, pressure tested system for leaks, and evacuated lines to manufacturer specifications. Made all necessary electrical connections including disconnect box and verified proper voltage and amperage readings with multimeter. Properly disposed of existing equipment in accordance with EPA regulations for refrigerant recovery and equipment recycling. Secured all required permits and completed final system startup, verifying proper operation of all components including compressor, condenser fan, and re
Chris B.
Chris B. Checked in
Completed full commercial HVAC system installation including Bryant GA4SAN524 2-ton air conditioning condensing unit and CVAVA2414 matching evaporator coil. Fabricated and installed custom sheet metal transitions to connect new coil to existing supply and return ductwork, ensuring proper airflow distribution throughout the system. Installed return air filter rack for improved filtration and maintenance accessibility. Ran and connected refrigerant lines from outdoor condensing unit to indoor coil, pressure tested system for leaks, and evacuated lines to manufacturer specifications. Made all necessary electrical connections including disconnect box and verified proper voltage and amperage readings with multimeter. Properly disposed of existing equipment in accordance with EPA regulations for refrigerant recovery and equipment recycling. Secured all required permits and completed final system startup, verifying proper operation of all components including compressor, condenser fan, and re
Cincinnati, OH 45209
Completed commercial HVAC installation including removal and disposal of existing equipment per EPA specifications, followed by installation of Bryant GA4SAN524 2-ton air conditioning unit with matching CVAVA2414 evaporator coil. Fabricated and installed sheet metal ductwork to connect new system to existing supply and return air plenums, installed return air filter rack, obtained necessary permit, and verified system operation with amperage readings confirming proper electrical performance.
Completed commercial HVAC installation including removal and disposal of existing equipment per EPA specifications, followed by installation of Bryant GA4SAN524 2-ton air conditioning unit with matching CVAVA2414 evaporator coil. Fabricated and installed sheet metal ductwork to connect new system to existing supply and return air plenums, installed return air filter rack, obtained necessary permit, and verified system operation with amperage readings confirming proper electrical performance.
Giancarlo L.
Giancarlo L. Checked in
Completed commercial HVAC installation including removal and disposal of existing equipment per EPA specifications, followed by installation of Bryant GA4SAN524 2-ton air conditioning unit with matching CVAVA2414 evaporator coil. Fabricated and installed sheet metal ductwork to connect new system to existing supply and return air plenums, installed return air filter rack, obtained necessary permit, and verified system operation with amperage readings confirming proper electrical performance.
Cincinnati, OH 45209
Conducted comprehensive assessment of existing HVAC system for replacement estimate. Evaluated indoor furnace unit with associated ductwork and PVC venting system located in basement utility area, documenting current equipment configuration and installation conditions. Inspected outdoor condensing unit positioned on concrete pad adjacent to structure, assessed electrical disconnect and conduit routing. Photographed both indoor and outdoor components to document existing system layout and facilitate accurate replacement proposal development.
Conducted comprehensive assessment of existing HVAC system for replacement estimate. Evaluated indoor furnace unit with associated ductwork and PVC venting system located in basement utility area, documenting current equipment configuration and installation conditions. Inspected outdoor condensing unit positioned on concrete pad adjacent to structure, assessed electrical disconnect and conduit routing. Photographed both indoor and outdoor components to document existing system layout and facilitate accurate replacement proposal development.
Victoria M.
Victoria M. Checked in
Conducted comprehensive assessment of existing HVAC system for replacement estimate. Evaluated indoor furnace unit with associated ductwork and PVC venting system located in basement utility area, documenting current equipment configuration and installation conditions. Inspected outdoor condensing unit positioned on concrete pad adjacent to structure, assessed electrical disconnect and conduit routing. Photographed both indoor and outdoor components to document existing system layout and facilitate accurate replacement proposal development.
Cincinnati, OH 45230
Conducted comprehensive assessment of rooftop HVAC installation featuring three R-22 heat pump systems requiring replacement due to refrigerant depletion in primary unit. Documented existing equipment configuration including multiple condensing units mounted on support frames with electrical disconnects containing aged fuses and wiring. Determined crane access will be necessary for removal and installation of rooftop units given building height and equipment positioning on gravel-surfaced roof.
Conducted comprehensive assessment of rooftop HVAC installation featuring three R-22 heat pump systems requiring replacement due to refrigerant depletion in primary unit. Documented existing equipment configuration including multiple condensing units mounted on support frames with electrical disconnects containing aged fuses and wiring. Determined crane access will be necessary for removal and installation of rooftop units given building height and equipment positioning on gravel-surfaced roof.
Victoria M.
Victoria M. Checked in
Conducted comprehensive assessment of rooftop HVAC installation featuring three R-22 heat pump systems requiring replacement due to refrigerant depletion in primary unit. Documented existing equipment configuration including multiple condensing units mounted on support frames with electrical disconnects containing aged fuses and wiring. Determined crane access will be necessary for removal and installation of rooftop units given building height and equipment positioning on gravel-surfaced roof.
Cincinnati, OH 45226
Successfully completed installation of a 2-ton Bryant GA4AN524 14 SEER condenser with R464B refrigerant and matching Bryant CVAVA2414 coil for commercial application. Fabricated and installed custom sheet metal transitions to integrate with existing supply and return ductwork, added return air filter rack, and installed outdoor disconnect with electrical whip. Properly removed and disposed of existing equipment in accordance with EPA regulations, obtained necessary permit, and performed system commissioning with temperature differential testing showing 21.3°F split, confirming optimal system performance.
Successfully completed installation of a 2-ton Bryant GA4AN524 14 SEER condenser with R464B refrigerant and matching Bryant CVAVA2414 coil for commercial application. Fabricated and installed custom sheet metal transitions to integrate with existing supply and return ductwork, added return air filter rack, and installed outdoor disconnect with electrical whip. Properly removed and disposed of existing equipment in accordance with EPA regulations, obtained necessary permit, and performed system commissioning with temperature differential testing showing 21.3°F split, confirming optimal system performance.
Giancarlo L.
Giancarlo L. Checked in
Successfully completed installation of a 2-ton Bryant GA4AN524 14 SEER condenser with R464B refrigerant and matching Bryant CVAVA2414 coil for commercial application. Fabricated and installed custom sheet metal transitions to integrate with existing supply and return ductwork, added return air filter rack, and installed outdoor disconnect with electrical whip. Properly removed and disposed of existing equipment in accordance with EPA regulations, obtained necessary permit, and performed system commissioning with temperature differential testing showing 21.3°F split, confirming optimal system performance.
Cincinnati, OH 45209
Completed full commercial HVAC system replacement in confined mechanical closet space. Removed and properly disposed of existing Rheem furnace unit per EPA regulations, which showed evidence of severe heat damage, soot accumulation, and compromised internal components. Installed new Bryant GA4SAN524 2-ton air conditioning unit with matching CVAVA2414 evaporator coil. Fabricated and installed custom sheet metal transitions to connect new equipment to existing supply and return ductwork. Installed return air filter rack for proper filtration and system protection. Completed all electrical connections and refrigerant line sets. Pulled permit and conducted final inspection to ensure code compliance and proper system operation.
Completed full commercial HVAC system replacement in confined mechanical closet space. Removed and properly disposed of existing Rheem furnace unit per EPA regulations, which showed evidence of severe heat damage, soot accumulation, and compromised internal components. Installed new Bryant GA4SAN524 2-ton air conditioning unit with matching CVAVA2414 evaporator coil. Fabricated and installed custom sheet metal transitions to connect new equipment to existing supply and return ductwork. Installed return air filter rack for proper filtration and system protection. Completed all electrical connections and refrigerant line sets. Pulled permit and conducted final inspection to ensure code compliance and proper system operation.
Chris B.
Chris B. Checked in
Completed full commercial HVAC system replacement in confined mechanical closet space. Removed and properly disposed of existing Rheem furnace unit per EPA regulations, which showed evidence of severe heat damage, soot accumulation, and compromised internal components. Installed new Bryant GA4SAN524 2-ton air conditioning unit with matching CVAVA2414 evaporator coil. Fabricated and installed custom sheet metal transitions to connect new equipment to existing supply and return ductwork. Installed return air filter rack for proper filtration and system protection. Completed all electrical connections and refrigerant line sets. Pulled permit and conducted final inspection to ensure code compliance and proper system operation.
Cincinnati, OH 45209
Conducted on-site assessment of existing HVAC system for replacement estimate. Documented current equipment configuration including furnace, air handler, humidifier unit, ductwork, and Honeywell programmable thermostat. Photographed mechanical room setup in basement with existing gray insulated ductwork, expansion tanks, and utility components to provide comprehensive evaluation for complete system replacement recommendations.
Conducted on-site assessment of existing HVAC system for replacement estimate. Documented current equipment configuration including furnace, air handler, humidifier unit, ductwork, and Honeywell programmable thermostat. Photographed mechanical room setup in basement with existing gray insulated ductwork, expansion tanks, and utility components to provide comprehensive evaluation for complete system replacement recommendations.
Victoria M.
Victoria M. Checked in
Conducted on-site assessment of existing HVAC system for replacement estimate. Documented current equipment configuration including furnace, air handler, humidifier unit, ductwork, and Honeywell programmable thermostat. Photographed mechanical room setup in basement with existing gray insulated ductwork, expansion tanks, and utility components to provide comprehensive evaluation for complete system replacement recommendations.
Cincinnati, OH 45223
Completed full commercial HVAC system installation including BCRMA2124S3N3 water fan coil unit installed in interior utility closet and NCP5243000A through-wall AC unit with rooftop condenser. Connected new equipment to existing supply lines using copper piping and fittings, installed new thermostat for system control, and obtained necessary permits for the installation.
Completed full commercial HVAC system installation including BCRMA2124S3N3 water fan coil unit installed in interior utility closet and NCP5243000A through-wall AC unit with rooftop condenser. Connected new equipment to existing supply lines using copper piping and fittings, installed new thermostat for system control, and obtained necessary permits for the installation.
Erik M.
Erik M. Checked in
Completed full commercial HVAC system installation including BCRMA2124S3N3 water fan coil unit installed in interior utility closet and NCP5243000A through-wall AC unit with rooftop condenser. Connected new equipment to existing supply lines using copper piping and fittings, installed new thermostat for system control, and obtained necessary permits for the installation.
Cincinnati, OH 45220
Completed full commercial HVAC system installation including Bryant GA4SAN52400N 2-ton 14 SEER condensing unit, Bryant CVAVA2414 evaporator coil, and Bryant 800SB36070 gas furnace. Flushed refrigerant lines, installed electrical disconnect and whip, fabricated sheet metal transitions to connect to existing supply and return ductwork, and removed existing equipment following EPA disposal specifications. Verified system operation with temperature differential readings and obtained required permit for installation.
Completed full commercial HVAC system installation including Bryant GA4SAN52400N 2-ton 14 SEER condensing unit, Bryant CVAVA2414 evaporator coil, and Bryant 800SB36070 gas furnace. Flushed refrigerant lines, installed electrical disconnect and whip, fabricated sheet metal transitions to connect to existing supply and return ductwork, and removed existing equipment following EPA disposal specifications. Verified system operation with temperature differential readings and obtained required permit for installation.
Chris B.
Chris B. Checked in
Completed full commercial HVAC system installation including Bryant GA4SAN52400N 2-ton 14 SEER condensing unit, Bryant CVAVA2414 evaporator coil, and Bryant 800SB36070 gas furnace. Flushed refrigerant lines, installed electrical disconnect and whip, fabricated sheet metal transitions to connect to existing supply and return ductwork, and removed existing equipment following EPA disposal specifications. Verified system operation with temperature differential readings and obtained required permit for installation.
Cincinnati, OH 45231
Conducted comprehensive site assessment of existing boiler system and associated hydronic heating distribution. Evaluated mechanical room equipment including boiler unit, piping infrastructure, pressure regulation components, and terminal heating units throughout the building. Documented current system configuration with photographic reference for estimate preparation.
Conducted comprehensive site assessment of existing boiler system and associated hydronic heating distribution. Evaluated mechanical room equipment including boiler unit, piping infrastructure, pressure regulation components, and terminal heating units throughout the building. Documented current system configuration with photographic reference for estimate preparation.
Victoria M.
Victoria M. Checked in
Conducted comprehensive site assessment of existing boiler system and associated hydronic heating distribution. Evaluated mechanical room equipment including boiler unit, piping infrastructure, pressure regulation components, and terminal heating units throughout the building. Documented current system configuration with photographic reference for estimate preparation.
Cincinnati, OH 45230
Cincinnati, OH - Conducted on-site evaluation for air conditioning system and gas furnace replacement. Assessed existing HVAC equipment accessibility and ductwork configuration in attic space, documented current system layout and provided comprehensive replacement estimate to customer.
Victoria M.
Victoria M. Checked in
Conducted on-site evaluation for air conditioning system and gas furnace replacement. Assessed existing HVAC equipment accessibility and ductwork configuration in attic space, documented current system layout and provided comprehensive replacement estimate to customer.
Cincinnati, OH 45209
Completed full HVAC system replacement at commercial property including removal and EPA-compliant disposal of existing equipment. Installed new Bryant 3.5-ton split system consisting of GA4SAN542 condensing unit, CVAVA42 evaporator coil, and 912SB42080 80,000 BTU 90% efficiency gas furnace. Relocated furnace from previous location back to attic cubby hole for improved accessibility and space optimization. Ran new refrigerant lineset between outdoor condensing unit and indoor coil, installed new condensate drain pan with proper drainage, and fabricated sheet metal transitions to connect furnace to existing flue system. Mounted condensing unit on new equipment pad with proper gravel base for drainage and stability. Installed electrical disconnect, whip, and fuses for outdoor unit per code requirements. Verified all electrical connections, tested system operation including heating and cooling cycles, and confirmed proper airflow and refrigerant charge. Obtained necessary permit and comple
Completed full HVAC system replacement at commercial property including removal and EPA-compliant disposal of existing equipment. Installed new Bryant 3.5-ton split system consisting of GA4SAN542 condensing unit, CVAVA42 evaporator coil, and 912SB42080 80,000 BTU 90% efficiency gas furnace. Relocated furnace from previous location back to attic cubby hole for improved accessibility and space optimization. Ran new refrigerant lineset between outdoor condensing unit and indoor coil, installed new condensate drain pan with proper drainage, and fabricated sheet metal transitions to connect furnace to existing flue system. Mounted condensing unit on new equipment pad with proper gravel base for drainage and stability. Installed electrical disconnect, whip, and fuses for outdoor unit per code requirements. Verified all electrical connections, tested system operation including heating and cooling cycles, and confirmed proper airflow and refrigerant charge. Obtained necessary permit and comple
Erik M.
Erik M. Checked in
Completed full HVAC system replacement at commercial property including removal and EPA-compliant disposal of existing equipment. Installed new Bryant 3.5-ton split system consisting of GA4SAN542 condensing unit, CVAVA42 evaporator coil, and 912SB42080 80,000 BTU 90% efficiency gas furnace. Relocated furnace from previous location back to attic cubby hole for improved accessibility and space optimization. Ran new refrigerant lineset between outdoor condensing unit and indoor coil, installed new condensate drain pan with proper drainage, and fabricated sheet metal transitions to connect furnace to existing flue system. Mounted condensing unit on new equipment pad with proper gravel base for drainage and stability. Installed electrical disconnect, whip, and fuses for outdoor unit per code requirements. Verified all electrical connections, tested system operation including heating and cooling cycles, and confirmed proper airflow and refrigerant charge. Obtained necessary permit and comple
Cincinnati, OH 45208
Completed full commercial HVAC system installation including First Co 24-RAQ-3 hot water fan coil unit and Bryant GA4SAN524 air conditioning unit. Connected new equipment to existing hot water supply lines with appropriate piping and fittings, installed new thermostat for system control, and verified proper refrigerant pressures and system operation using manifold gauges. All work completed per code requirements with permit obtained, condensate drainage properly routed, and system commissioned successfully.
Completed full commercial HVAC system installation including First Co 24-RAQ-3 hot water fan coil unit and Bryant GA4SAN524 air conditioning unit. Connected new equipment to existing hot water supply lines with appropriate piping and fittings, installed new thermostat for system control, and verified proper refrigerant pressures and system operation using manifold gauges. All work completed per code requirements with permit obtained, condensate drainage properly routed, and system commissioned successfully.
Giancarlo L.
Giancarlo L. Checked in
Completed full commercial HVAC system installation including First Co 24-RAQ-3 hot water fan coil unit and Bryant GA4SAN524 air conditioning unit. Connected new equipment to existing hot water supply lines with appropriate piping and fittings, installed new thermostat for system control, and verified proper refrigerant pressures and system operation using manifold gauges. All work completed per code requirements with permit obtained, condensate drainage properly routed, and system commissioned successfully.
Cincinnati, OH 45220
Responded to commercial HVAC installation callback to address incomplete condensate drain line that was not installed during original December installation. Installed proper PVC drain piping configuration and verified proper drainage flow. Checked system refrigerant charge using digital multimeter and found system low on refrigerant; added refrigerant to manufacturer specifications and verified proper voltage readings at 239.5V AC.
Responded to commercial HVAC installation callback to address incomplete condensate drain line that was not installed during original December installation. Installed proper PVC drain piping configuration and verified proper drainage flow. Checked system refrigerant charge using digital multimeter and found system low on refrigerant; added refrigerant to manufacturer specifications and verified proper voltage readings at 239.5V AC.
Chris B.
Chris B. Checked in
Responded to commercial HVAC installation callback to address incomplete condensate drain line that was not installed during original December installation. Installed proper PVC drain piping configuration and verified proper drainage flow. Checked system refrigerant charge using digital multimeter and found system low on refrigerant; added refrigerant to manufacturer specifications and verified proper voltage readings at 239.5V AC.
Cincinnati, OH 45249
Cincinnati, OH - Responded to IBI inspection callback to address OCPD deficiency on AC unit. Replaced oversized 25-amp fuses with proper 20-amp Edison ECNR20 time-delay current-limiting fuses to match equipment nameplate specifications and meet code requirements.
Chris B.
Chris B. Checked in
Responded to IBI inspection callback to address OCPD deficiency on AC unit. Replaced oversized 25-amp fuses with proper 20-amp Edison ECNR20 time-delay current-limiting fuses to match equipment nameplate specifications and meet code requirements.
Cincinnati, OH 45231
Conducted on-site evaluation for air conditioning system replacement. Assessed existing dual condenser unit configuration positioned on concrete pad adjacent to building exterior. Inspected electrical service panel containing approximately 20 circuit breakers with main disconnect, confirming adequate electrical capacity and proper service disconnect location for new equipment installation. Documented current HVAC equipment specifications and electrical infrastructure to provide comprehensive replacement estimate. Photographed existing condenser units and electrical panel for equipment sizing and installation planning purposes.
Conducted on-site evaluation for air conditioning system replacement. Assessed existing dual condenser unit configuration positioned on concrete pad adjacent to building exterior. Inspected electrical service panel containing approximately 20 circuit breakers with main disconnect, confirming adequate electrical capacity and proper service disconnect location for new equipment installation. Documented current HVAC equipment specifications and electrical infrastructure to provide comprehensive replacement estimate. Photographed existing condenser units and electrical panel for equipment sizing and installation planning purposes.
Victoria M.
Victoria M. Checked in
Conducted on-site evaluation for air conditioning system replacement. Assessed existing dual condenser unit configuration positioned on concrete pad adjacent to building exterior. Inspected electrical service panel containing approximately 20 circuit breakers with main disconnect, confirming adequate electrical capacity and proper service disconnect location for new equipment installation. Documented current HVAC equipment specifications and electrical infrastructure to provide comprehensive replacement estimate. Photographed existing condenser units and electrical panel for equipment sizing and installation planning purposes.
Cincinnati, OH 45237
# HVAC Install - Complete System - Comm

Completed full commercial HVAC system installation including Bryant GA4SAN524 air conditioning condenser unit and BCRMA2124S3N3 water fan coil unit. Installed new thermostat for system control and connected equipment to existing supply lines using new pipe and fittings. Mounted outdoor condenser unit on gravel pad against exterior brick wall with proper clearances and secured all refrigerant lines along building structure. Ran electrical connections to wall-mounted junction boxes and conduit. Verified all connections, performed system startup, and confirmed proper operation of both cooling and air handling components. Obtained necessary permit for installation and ensured all work met local code requirements.
# HVAC Install - Complete System - Comm

Completed full commercial HVAC system installation including Bryant GA4SAN524 air conditioning condenser unit and BCRMA2124S3N3 water fan coil unit. Installed new thermostat for system control and connected equipment to existing supply lines using new pipe and fittings. Mounted outdoor condenser unit on gravel pad against exterior brick wall with proper clearances and secured all refrigerant lines along building structure. Ran electrical connections to wall-mounted junction boxes and conduit. Verified all connections, performed system startup, and confirmed proper operation of both cooling and air handling components. Obtained necessary permit for installation and ensured all work met local code requirements.
Erik M.
Erik M. Checked in
# HVAC Install - Complete System - Comm Completed full commercial HVAC system installation including Bryant GA4SAN524 air conditioning condenser unit and BCRMA2124S3N3 water fan coil unit. Installed new thermostat for system control and connected equipment to existing supply lines using new pipe and fittings. Mounted outdoor condenser unit on gravel pad against exterior brick wall with proper clearances and secured all refrigerant lines along building structure. Ran electrical connections to wall-mounted junction boxes and conduit. Verified all connections, performed system startup, and confirmed proper operation of both cooling and air handling components. Obtained necessary permit for installation and ensured all work met local code requirements.
Cincinnati, OH 45220

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Price Match guarantee

What To Expect Discover the National Difference
Satisfaction Guaranteed

Your comfort is our top priority, so we'll work tirelessly to guarantee you're 100% satisfied with our service.

Over 90 Years Experience

We have been providing HVAC services since 1931, so we have the experience to solve any of your problems.

Trained Technicians

Our team stays up to date with and continuously trains on all the latest HVAC technologies.

24/7 Emergency Service

HVAC systems choose the worst times to breakdown, so we're available nights, weekends, and holidays to help!

Upfront, Honest Pricing

We offer free estimates and price matching on all major equipment purchases. We’ll match any competitor's price as long as the equipment is an “apples-to-apples” comparison.

Convenient Financing

Costs should never be a barrier to receiving the services you need, so our team offers financing options, subject to approved credit.

Satisfaction Guaranteed

Your comfort is our top priority, so we'll work tirelessly to guarantee you're 100% satisfied with our service.

Over 90 Years Experience

We have been providing HVAC services since 1931, so we have the experience to solve any of your problems.

Trained Technicians

Our team stays up to date with and continuously trains on all the latest HVAC technologies.

24/7 Emergency Service

HVAC systems choose the worst times to breakdown, so we're available nights, weekends, and holidays to help!

Upfront, Honest Pricing

We offer free estimates and price matching on all major equipment purchases. We’ll match any competitor's price as long as the equipment is an “apples-to-apples” comparison.

Convenient Financing

Costs should never be a barrier to receiving the services you need, so our team offers financing options, subject to approved credit.

Our Reviews

What Our Clients Are Saying

Brandon of National Heating did an excellent job servicing my AC. He is very thorough, knowledgeable, and professional. He discovered that the low outside temperature sensor had not been set up on my Evolution Connex Control and took care of it. I appreciated his top-notch service!

Thomas S.

Great company that I trust. Very thorough. I just had my air conditioner annual service. I used Help in the past. They always tried to upsell every opportunity they had. National Heating and A/C is the real deal from booking the appointment to the actual work. Every person I have dealt with is kind, knowledgeable, and…

Paul M.

I can highly recommend National (previously Nelson Comfort) Heating and Air especially if Sanjay is the company representative. He was beyond good in that he completely cleaned the outside unit and was very thorough with the ac equipment inside the house. He even destroyed a wasp nest that I had not noticed. Five stars for this…

Susan S.

Excellent experience all around. Communication from the company was timely and complete. My service technician Chad Wilson was very knowledgeable, efficient and helpful. I had a lot of questions, having just moved into a house with systems that were unfamiliar to me (geothermal, radiant heat). Chad answered all my questions and spent extra time helping me…

Mary C.

My family has been using this company for years. They've always provided us with honest feedback on pricing for repairs and maintenance. This means a lot to a family on a tight budget. We never feel like we are charged for unnecessary items. All charges are explained and examined in great detail before being followed through.…

Megan K.