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

Job Locations and Reviews

Completed full HVAC system installation including 800SB36070M17 Legacy gas furnace, CVAVA2417XMA V-coil cased vertical evaporator coil (R454B refrigerant), and 37MURAQ24AA3 single-zone ductless outdoor unit. Replaced filter rack with new filters and performed partial return drop replacement. Executed lineset nitrogen purge, RX11 flush, and comprehensive pressure leak test to ensure system integrity. Reconnected all components to existing furnace and ductwork, installed new outdoor condenser pad and disconnect box with fuses, and maintained existing thermostat. System tested and operational upon completion.
Completed full HVAC system installation including 800SB36070M17 Legacy gas furnace, CVAVA2417XMA V-coil cased vertical evaporator coil (R454B refrigerant), and 37MURAQ24AA3 single-zone ductless outdoor unit. Replaced filter rack with new filters and performed partial return drop replacement. Executed lineset nitrogen purge, RX11 flush, and comprehensive pressure leak test to ensure system integrity. Reconnected all components to existing furnace and ductwork, installed new outdoor condenser pad and disconnect box with fuses, and maintained existing thermostat. System tested and operational upon completion.
Chris B.
Chris B. Checked in
Completed full HVAC system installation including 800SB36070M17 Legacy gas furnace, CVAVA2417XMA V-coil cased vertical evaporator coil (R454B refrigerant), and 37MURAQ24AA3 single-zone ductless outdoor unit. Replaced filter rack with new filters and performed partial return drop replacement. Executed lineset nitrogen purge, RX11 flush, and comprehensive pressure leak test to ensure system integrity. Reconnected all components to existing furnace and ductwork, installed new outdoor condenser pad and disconnect box with fuses, and maintained existing thermostat. System tested and operational upon completion.
Cincinnati, OH 45231
Completed full HVAC system replacement including installation of 235SAN03600A Legacy 3.0 ton heat pump with R454B refrigerant and FT5ANXC36L00 fan coil unit in basement. Installed TU-EC-15BKB 15kW heat kit for auxiliary heating. Replaced existing pole-mounted outdoor unit with new pad and pump-up installation due to width incompatibility (existing poles 37 inches apart, new unit 31 inches wide). Installed new electrical whip, disconnect box with fuses, and refrigerant line set connecting outdoor condenser to indoor air handler. Removed and properly disposed of old heat pump system. All electrical connections completed to code, system charged, tested, and verified operational.
Completed full HVAC system replacement including installation of 235SAN03600A Legacy 3.0 ton heat pump with R454B refrigerant and FT5ANXC36L00 fan coil unit in basement. Installed TU-EC-15BKB 15kW heat kit for auxiliary heating. Replaced existing pole-mounted outdoor unit with new pad and pump-up installation due to width incompatibility (existing poles 37 inches apart, new unit 31 inches wide). Installed new electrical whip, disconnect box with fuses, and refrigerant line set connecting outdoor condenser to indoor air handler. Removed and properly disposed of old heat pump system. All electrical connections completed to code, system charged, tested, and verified operational.
Erik M.
Erik M. Checked in
Completed full HVAC system replacement including installation of 235SAN03600A Legacy 3.0 ton heat pump with R454B refrigerant and FT5ANXC36L00 fan coil unit in basement. Installed TU-EC-15BKB 15kW heat kit for auxiliary heating. Replaced existing pole-mounted outdoor unit with new pad and pump-up installation due to width incompatibility (existing poles 37 inches apart, new unit 31 inches wide). Installed new electrical whip, disconnect box with fuses, and refrigerant line set connecting outdoor condenser to indoor air handler. Removed and properly disposed of old heat pump system. All electrical connections completed to code, system charged, tested, and verified operational.
Cincinnati, OH 45240
Responded to commercial HVAC warranty call and diagnosed restriction in evaporator coil affecting system performance. Documented temperature differential readings of 62.5°F and verified thermostat operation. Determined coil replacement required to restore proper refrigerant flow and system efficiency.
Responded to commercial HVAC warranty call and diagnosed restriction in evaporator coil affecting system performance. Documented temperature differential readings of 62.5°F and verified thermostat operation. Determined coil replacement required to restore proper refrigerant flow and system efficiency.
Giancarlo L.
Giancarlo L. Checked in
Responded to commercial HVAC warranty call and diagnosed restriction in evaporator coil affecting system performance. Documented temperature differential readings of 62.5°F and verified thermostat operation. Determined coil replacement required to restore proper refrigerant flow and system efficiency.
Cincinnati, OH 45243
Completed HVAC system replacement estimate for rental property with existing basement upflow furnace installation. Assessed current system configuration including 90,000 BTU furnace with PVC venting, air conditioning condenser, refrigerant lines, and ductwork in concrete block basement utility area. Documented equipment specifications, measured existing duct dimensions (outdoor 3x18-250, 8x8-290), verified airflow requirements at 1,140 CFM, and noted current 16x25x1 filter size. Photographed complete system layout showing furnace unit, condensate drain lines, electrical connections, and associated HVAC components. Provided replacement options for both heating and cooling equipment to address customer's request for complete system upgrade.
Completed HVAC system replacement estimate for rental property with existing basement upflow furnace installation. Assessed current system configuration including 90,000 BTU furnace with PVC venting, air conditioning condenser, refrigerant lines, and ductwork in concrete block basement utility area. Documented equipment specifications, measured existing duct dimensions (outdoor 3x18-250, 8x8-290), verified airflow requirements at 1,140 CFM, and noted current 16x25x1 filter size. Photographed complete system layout showing furnace unit, condensate drain lines, electrical connections, and associated HVAC components. Provided replacement options for both heating and cooling equipment to address customer's request for complete system upgrade.
Victoria M.
Victoria M. Checked in
Completed HVAC system replacement estimate for rental property with existing basement upflow furnace installation. Assessed current system configuration including 90,000 BTU furnace with PVC venting, air conditioning condenser, refrigerant lines, and ductwork in concrete block basement utility area. Documented equipment specifications, measured existing duct dimensions (outdoor 3x18-250, 8x8-290), verified airflow requirements at 1,140 CFM, and noted current 16x25x1 filter size. Photographed complete system layout showing furnace unit, condensate drain lines, electrical connections, and associated HVAC components. Provided replacement options for both heating and cooling equipment to address customer's request for complete system upgrade.
Cincinnati, OH 45216
Conducted comprehensive HVAC system evaluation for complete replacement estimate. Assessed existing Rheem condenser unit positioned on ground-level installation without proper pad, along with 80k BTU Bryant furnace system in basement upflow configuration. Documented system specifications including 2.5-ton single-phase condenser, existing 3/4" x 3/8" refrigerant line set, 2" PVC flue venting, and calculated required airflow at 1,776 CFM for proper system sizing and ductwork configuration of 8x12 and 8x14 dimensions.
Conducted comprehensive HVAC system evaluation for complete replacement estimate. Assessed existing Rheem condenser unit positioned on ground-level installation without proper pad, along with 80k BTU Bryant furnace system in basement upflow configuration. Documented system specifications including 2.5-ton single-phase condenser, existing 3/4" x 3/8" refrigerant line set, 2" PVC flue venting, and calculated required airflow at 1,776 CFM for proper system sizing and ductwork configuration of 8x12 and 8x14 dimensions.
Victoria M.
Victoria M. Checked in
Conducted comprehensive HVAC system evaluation for complete replacement estimate. Assessed existing Rheem condenser unit positioned on ground-level installation without proper pad, along with 80k BTU Bryant furnace system in basement upflow configuration. Documented system specifications including 2.5-ton single-phase condenser, existing 3/4" x 3/8" refrigerant line set, 2" PVC flue venting, and calculated required airflow at 1,776 CFM for proper system sizing and ductwork configuration of 8x12 and 8x14 dimensions.
Cincinnati, OH 45236
Completed full commercial HVAC system installation including GA4SAN51800N gas furnace, 800SB36070 condenser unit, and CVAVA2414 air handler. Installed new equipment pad, electrical whip, and disconnect switch. Properly disposed of existing equipment per EPA regulations. Performed system startup, verified refrigerant pressures and temperatures using digital manifolds, and confirmed all operating parameters were within manufacturer specifications.
Completed full commercial HVAC system installation including GA4SAN51800N gas furnace, 800SB36070 condenser unit, and CVAVA2414 air handler. Installed new equipment pad, electrical whip, and disconnect switch. Properly disposed of existing equipment per EPA regulations. Performed system startup, verified refrigerant pressures and temperatures using digital manifolds, and confirmed all operating parameters were within manufacturer specifications.
Giancarlo L.
Giancarlo L. Checked in
Completed full commercial HVAC system installation including GA4SAN51800N gas furnace, 800SB36070 condenser unit, and CVAVA2414 air handler. Installed new equipment pad, electrical whip, and disconnect switch. Properly disposed of existing equipment per EPA regulations. Performed system startup, verified refrigerant pressures and temperatures using digital manifolds, and confirmed all operating parameters were within manufacturer specifications.
Cincinnati, OH 45251
Provided estimate for complete HVAC system replacement due to existing R22 system with refrigerant leak causing loss of cooling capacity. Assessed current Goodman furnace installation and existing thermostat wiring configuration to determine replacement specifications and compatibility requirements for new equipment installation.
Provided estimate for complete HVAC system replacement due to existing R22 system with refrigerant leak causing loss of cooling capacity. Assessed current Goodman furnace installation and existing thermostat wiring configuration to determine replacement specifications and compatibility requirements for new equipment installation.
Victoria M.
Victoria M. Checked in
Provided estimate for complete HVAC system replacement due to existing R22 system with refrigerant leak causing loss of cooling capacity. Assessed current Goodman furnace installation and existing thermostat wiring configuration to determine replacement specifications and compatibility requirements for new equipment installation.
Cincinnati, OH 45231
Conducted on-site evaluation of existing air conditioning system for replacement estimate. Assessed current air handler unit located in basement utility area, noting existing refrigerant line configuration, electrical panel capacity and breaker availability, condensate drainage system with PVC piping, and overall installation conditions. Documented equipment specifications, mounting location against concrete wall, and utility connections to provide comprehensive replacement options and system sizing recommendations.
Conducted on-site evaluation of existing air conditioning system for replacement estimate. Assessed current air handler unit located in basement utility area, noting existing refrigerant line configuration, electrical panel capacity and breaker availability, condensate drainage system with PVC piping, and overall installation conditions. Documented equipment specifications, mounting location against concrete wall, and utility connections to provide comprehensive replacement options and system sizing recommendations.
Tony A.
Tony A. Checked in
Conducted on-site evaluation of existing air conditioning system for replacement estimate. Assessed current air handler unit located in basement utility area, noting existing refrigerant line configuration, electrical panel capacity and breaker availability, condensate drainage system with PVC piping, and overall installation conditions. Documented equipment specifications, mounting location against concrete wall, and utility connections to provide comprehensive replacement options and system sizing recommendations.
Cincinnati, OH 45240
Completed full HVAC system replacement at multi-unit residential property, installing Bryant FJ5ANXB24L00 air handler with 8kW electric heat pack in interior closet space and Bryant GA4SAN52400N 2-ton 14 SEER condenser with R454B refrigerant on rooftop. Fabricated and installed sheet metal connections to integrate with existing supply and return ductwork, flushed existing refrigerant lines, and installed outdoor disconnect with whip, pad, and fuses. Removed and disposed of existing equipment per EPA specifications, obtained necessary permit, and completed all electrical and refrigerant connections to ensure proper system operation.
Completed full HVAC system replacement at multi-unit residential property, installing Bryant FJ5ANXB24L00 air handler with 8kW electric heat pack in interior closet space and Bryant GA4SAN52400N 2-ton 14 SEER condenser with R454B refrigerant on rooftop. Fabricated and installed sheet metal connections to integrate with existing supply and return ductwork, flushed existing refrigerant lines, and installed outdoor disconnect with whip, pad, and fuses. Removed and disposed of existing equipment per EPA specifications, obtained necessary permit, and completed all electrical and refrigerant connections to ensure proper system operation.
Erik M.
Erik M. Checked in
Completed full HVAC system replacement at multi-unit residential property, installing Bryant FJ5ANXB24L00 air handler with 8kW electric heat pack in interior closet space and Bryant GA4SAN52400N 2-ton 14 SEER condenser with R454B refrigerant on rooftop. Fabricated and installed sheet metal connections to integrate with existing supply and return ductwork, flushed existing refrigerant lines, and installed outdoor disconnect with whip, pad, and fuses. Removed and disposed of existing equipment per EPA specifications, obtained necessary permit, and completed all electrical and refrigerant connections to ensure proper system operation.
Cincinnati, OH 45227
Conducted comprehensive site evaluation for complete HVAC system replacement. Assessed existing outdoor condenser unit and indoor thermostat configuration. Documented current system specifications including ecobee thermostat with power extender kit (PEK) wiring, multi-stage heating and cooling connections, and outdoor condensing unit with electrical disconnect. Photographed equipment placement, refrigerant line routing through exterior brick wall, and existing pad location. Provided customer with replacement options and system recommendations based on current installation parameters.
Conducted comprehensive site evaluation for complete HVAC system replacement. Assessed existing outdoor condenser unit and indoor thermostat configuration. Documented current system specifications including ecobee thermostat with power extender kit (PEK) wiring, multi-stage heating and cooling connections, and outdoor condensing unit with electrical disconnect. Photographed equipment placement, refrigerant line routing through exterior brick wall, and existing pad location. Provided customer with replacement options and system recommendations based on current installation parameters.
Victoria M.
Victoria M. Checked in
Conducted comprehensive site evaluation for complete HVAC system replacement. Assessed existing outdoor condenser unit and indoor thermostat configuration. Documented current system specifications including ecobee thermostat with power extender kit (PEK) wiring, multi-stage heating and cooling connections, and outdoor condensing unit with electrical disconnect. Photographed equipment placement, refrigerant line routing through exterior brick wall, and existing pad location. Provided customer with replacement options and system recommendations based on current installation parameters.
Cincinnati, OH 45243
Completed full commercial HVAC system installation including Bryant GA4SAN52400 air conditioning unit and ADP BCRMA2124S3N3 fan coil with custom sheet metal fabrication to integrate with existing ductwork. Installed outdoor condenser on equipment pad with electrical whip, disconnect switch, and fused protection, charged refrigerant lines to manufacturer specifications, and verified all electrical connections and system operation upon startup.
Completed full commercial HVAC system installation including Bryant GA4SAN52400 air conditioning unit and ADP BCRMA2124S3N3 fan coil with custom sheet metal fabrication to integrate with existing ductwork. Installed outdoor condenser on equipment pad with electrical whip, disconnect switch, and fused protection, charged refrigerant lines to manufacturer specifications, and verified all electrical connections and system operation upon startup.
Chris B.
Chris B. Checked in
Completed full commercial HVAC system installation including Bryant GA4SAN52400 air conditioning unit and ADP BCRMA2124S3N3 fan coil with custom sheet metal fabrication to integrate with existing ductwork. Installed outdoor condenser on equipment pad with electrical whip, disconnect switch, and fused protection, charged refrigerant lines to manufacturer specifications, and verified all electrical connections and system operation upon startup.
Cincinnati, OH 45243
Conducted comprehensive estimate for complete HVAC system replacement including furnace and air conditioning equipment. Evaluated existing outdoor condenser unit positioned on gravel pad against exterior brick wall, noting current copper refrigerant line configuration and electrical disconnect setup. Assessed interior analog thermostat system with exposed mechanical components requiring modernization. Documented equipment specifications and site conditions through photographic records. Presented replacement options for gas furnace and air conditioning system with available promotional pricing for bundled installation.
Conducted comprehensive estimate for complete HVAC system replacement including furnace and air conditioning equipment. Evaluated existing outdoor condenser unit positioned on gravel pad against exterior brick wall, noting current copper refrigerant line configuration and electrical disconnect setup. Assessed interior analog thermostat system with exposed mechanical components requiring modernization. Documented equipment specifications and site conditions through photographic records. Presented replacement options for gas furnace and air conditioning system with available promotional pricing for bundled installation.
Victoria M.
Victoria M. Checked in
Conducted comprehensive estimate for complete HVAC system replacement including furnace and air conditioning equipment. Evaluated existing outdoor condenser unit positioned on gravel pad against exterior brick wall, noting current copper refrigerant line configuration and electrical disconnect setup. Assessed interior analog thermostat system with exposed mechanical components requiring modernization. Documented equipment specifications and site conditions through photographic records. Presented replacement options for gas furnace and air conditioning system with available promotional pricing for bundled installation.
Cincinnati, OH 45245
Completed full HVAC system installation including a Carrier 927TA48060V17 Preferred series gas furnace, Carrier 148TAN02400W 2.0-ton two-stage air conditioner with R454B refrigerant, and R454BCVAVA2417XMA V-coil cased vertical evaporator coil. Additionally installed a single-zone ductless mini-split system consisting of 37MAHAQ09AA3 outdoor condensing unit and D5MAHAQ09XA3 high-wall indoor air handler. Relocated existing duct run one joist over and repositioned register as requested, with final placement determined on-site for optimal airflow. Mounted outdoor condenser unit on concrete pad against brick foundation, ran insulated refrigerant line sets to both conventional and ductless systems, installed electrical disconnect and completed all wiring connections to existing meter base. System startup performed with electrical verification showing 365-volt reading, all equipment tested and operating within manufacturer specifications.
Completed full HVAC system installation including a Carrier 927TA48060V17 Preferred series gas furnace, Carrier 148TAN02400W 2.0-ton two-stage air conditioner with R454B refrigerant, and R454BCVAVA2417XMA V-coil cased vertical evaporator coil. Additionally installed a single-zone ductless mini-split system consisting of 37MAHAQ09AA3 outdoor condensing unit and D5MAHAQ09XA3 high-wall indoor air handler. Relocated existing duct run one joist over and repositioned register as requested, with final placement determined on-site for optimal airflow. Mounted outdoor condenser unit on concrete pad against brick foundation, ran insulated refrigerant line sets to both conventional and ductless systems, installed electrical disconnect and completed all wiring connections to existing meter base. System startup performed with electrical verification showing 365-volt reading, all equipment tested and operating within manufacturer specifications.
Chris B.
Chris B. Checked in
Completed full HVAC system installation including a Carrier 927TA48060V17 Preferred series gas furnace, Carrier 148TAN02400W 2.0-ton two-stage air conditioner with R454B refrigerant, and R454BCVAVA2417XMA V-coil cased vertical evaporator coil. Additionally installed a single-zone ductless mini-split system consisting of 37MAHAQ09AA3 outdoor condensing unit and D5MAHAQ09XA3 high-wall indoor air handler. Relocated existing duct run one joist over and repositioned register as requested, with final placement determined on-site for optimal airflow. Mounted outdoor condenser unit on concrete pad against brick foundation, ran insulated refrigerant line sets to both conventional and ductless systems, installed electrical disconnect and completed all wiring connections to existing meter base. System startup performed with electrical verification showing 365-volt reading, all equipment tested and operating within manufacturer specifications.
Cincinnati, OH 45237
Cincinnati, OH - Completed annual cooling maintenance on two geothermal heat pump units. Performed comprehensive system inspection including refrigerant levels, electrical connections, condensate drainage, and thermostat calibration. Both units operating within manufacturer specifications with all safety controls functioning properly.
Jonathon E.
Jonathon E. Checked in
Completed annual cooling maintenance on two geothermal heat pump units. Performed comprehensive system inspection including refrigerant levels, electrical connections, condensate drainage, and thermostat calibration. Both units operating within manufacturer specifications with all safety controls functioning properly.
Cincinnati, OH 45208
Completed commercial HVAC system installation including Bryant GA4SAN51800N gas furnace, 800SB36070 condenser unit, and CVAVA2414 evaporator coil. Installed new equipment pad, electrical whip, and disconnect switch for proper system operation. Verified 240V power supply to outdoor unit and confirmed all electrical connections meet code requirements. Properly disposed of existing equipment following EPA refrigerant recovery specifications. System commissioned and operational upon completion.
Completed commercial HVAC system installation including Bryant GA4SAN51800N gas furnace, 800SB36070 condenser unit, and CVAVA2414 evaporator coil. Installed new equipment pad, electrical whip, and disconnect switch for proper system operation. Verified 240V power supply to outdoor unit and confirmed all electrical connections meet code requirements. Properly disposed of existing equipment following EPA refrigerant recovery specifications. System commissioned and operational upon completion.
Erik M.
Erik M. Checked in
Completed commercial HVAC system installation including Bryant GA4SAN51800N gas furnace, 800SB36070 condenser unit, and CVAVA2414 evaporator coil. Installed new equipment pad, electrical whip, and disconnect switch for proper system operation. Verified 240V power supply to outdoor unit and confirmed all electrical connections meet code requirements. Properly disposed of existing equipment following EPA refrigerant recovery specifications. System commissioned and operational upon completion.
Cincinnati, OH 45251
Responded to no cooling call at commercial property. Inspected Bryant furnace system and outdoor condensing unit. Diagnosed system failure, performed necessary repairs to restore cooling operation. Unit tested and confirmed operational upon departure.
Responded to no cooling call at commercial property. Inspected Bryant furnace system and outdoor condensing unit. Diagnosed system failure, performed necessary repairs to restore cooling operation. Unit tested and confirmed operational upon departure.
Jonathon E.
Jonathon E. Checked in
Responded to no cooling call at commercial property. Inspected Bryant furnace system and outdoor condensing unit. Diagnosed system failure, performed necessary repairs to restore cooling operation. Unit tested and confirmed operational upon departure.
Cincinnati, OH 45255
Completed full commercial HVAC system installation including BCRMA2124S3N3 water fan coil units and Bryant GA4SAN524 air conditioning condensers with associated electrical components, refrigerant line sets, and condensate drainage systems. Installed new thermostats, ran copper refrigerant lines and electrical conduit to exterior-mounted equipment, connected piping to existing water supply, flushed line sets, and verified proper system operation with manifold gauges. All work performed to code with permit obtained and installation inspected for compliance.
Completed full commercial HVAC system installation including BCRMA2124S3N3 water fan coil units and Bryant GA4SAN524 air conditioning condensers with associated electrical components, refrigerant line sets, and condensate drainage systems. Installed new thermostats, ran copper refrigerant lines and electrical conduit to exterior-mounted equipment, connected piping to existing water supply, flushed line sets, and verified proper system operation with manifold gauges. All work performed to code with permit obtained and installation inspected for compliance.
Chris B.
Chris B. Checked in
Completed full commercial HVAC system installation including BCRMA2124S3N3 water fan coil units and Bryant GA4SAN524 air conditioning condensers with associated electrical components, refrigerant line sets, and condensate drainage systems. Installed new thermostats, ran copper refrigerant lines and electrical conduit to exterior-mounted equipment, connected piping to existing water supply, flushed line sets, and verified proper system operation with manifold gauges. All work performed to code with permit obtained and installation inspected for compliance.
Cincinnati, OH 45220
Cincinnati, OH - Completed full commercial HVAC system installation consisting of Bryant FJ5ANXB24L00 air handler with 8kW electric heat pack relocated to closet and Bryant GA4SAN52400N 2-ton 14 SEER condenser utilizing R454B refrigerant. Fabricated and installed sheet metal ductwork to connect unit to existing supply and return plenums, flushed existing refrigerant lines, and installed outdoor disconnect with whip, pad, and fuses. Removed and disposed of existing equipment per EPA regulations, obtained permit, and completed all required inspections.
Erik M.
Erik M. Checked in
Completed full commercial HVAC system installation consisting of Bryant FJ5ANXB24L00 air handler with 8kW electric heat pack relocated to closet and Bryant GA4SAN52400N 2-ton 14 SEER condenser utilizing R454B refrigerant. Fabricated and installed sheet metal ductwork to connect unit to existing supply and return plenums, flushed existing refrigerant lines, and installed outdoor disconnect with whip, pad, and fuses. Removed and disposed of existing equipment per EPA regulations, obtained permit, and completed all required inspections.
Cincinnati, OH 45227
Conducted comprehensive system evaluation for complete HVAC replacement estimate. Existing furnace requires extensive repairs and air conditioning system has confirmed refrigerant leak. Documented current outdoor condensing unit installation with electrical disconnects and indoor air handler configuration to provide accurate replacement specifications and equipment sizing recommendations.
Conducted comprehensive system evaluation for complete HVAC replacement estimate. Existing furnace requires extensive repairs and air conditioning system has confirmed refrigerant leak. Documented current outdoor condensing unit installation with electrical disconnects and indoor air handler configuration to provide accurate replacement specifications and equipment sizing recommendations.
Tony A.
Tony A. Checked in
Conducted comprehensive system evaluation for complete HVAC replacement estimate. Existing furnace requires extensive repairs and air conditioning system has confirmed refrigerant leak. Documented current outdoor condensing unit installation with electrical disconnects and indoor air handler configuration to provide accurate replacement specifications and equipment sizing recommendations.
Cincinnati, OH 45241
Responded to service call for air conditioning system not keeping up with cooling demand. Upon inspection, confirmed existing system utilizes R22 refrigerant. Documented current HVAC installation including Bryant furnace unit with associated PVC venting and flexible ductwork in mechanical room, along with air handler components. Photographed gas line connections and existing equipment configuration. Provided estimate for complete AC system replacement to address inadequate cooling performance and aging R22-dependent equipment.
Responded to service call for air conditioning system not keeping up with cooling demand. Upon inspection, confirmed existing system utilizes R22 refrigerant. Documented current HVAC installation including Bryant furnace unit with associated PVC venting and flexible ductwork in mechanical room, along with air handler components. Photographed gas line connections and existing equipment configuration. Provided estimate for complete AC system replacement to address inadequate cooling performance and aging R22-dependent equipment.
Victoria M.
Victoria M. Checked in
Responded to service call for air conditioning system not keeping up with cooling demand. Upon inspection, confirmed existing system utilizes R22 refrigerant. Documented current HVAC installation including Bryant furnace unit with associated PVC venting and flexible ductwork in mechanical room, along with air handler components. Photographed gas line connections and existing equipment configuration. Provided estimate for complete AC system replacement to address inadequate cooling performance and aging R22-dependent equipment.
Cincinnati, OH 45243

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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.