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

Conducted replacement estimate for 15-year-old residential air conditioning system serving a 4-bedroom home. Unit exhibited low refrigerant levels, though compressor and fan motor remained operational. Documented existing HVAC infrastructure including metal ductwork system showing age-related deterioration, warping, discoloration, and previous repair attempts with foil tape, as well as current rigid and flexible duct configurations in mechanical space. Provided assessment comparing repair versus full system replacement options given unit age and current condition.
Conducted replacement estimate for 15-year-old residential air conditioning system serving a 4-bedroom home. Unit exhibited low refrigerant levels, though compressor and fan motor remained operational. Documented existing HVAC infrastructure including metal ductwork system showing age-related deterioration, warping, discoloration, and previous repair attempts with foil tape, as well as current rigid and flexible duct configurations in mechanical space. Provided assessment comparing repair versus full system replacement options given unit age and current condition.
Tony A.
Tony A. Checked in
Conducted replacement estimate for 15-year-old residential air conditioning system serving a 4-bedroom home. Unit exhibited low refrigerant levels, though compressor and fan motor remained operational. Documented existing HVAC infrastructure including metal ductwork system showing age-related deterioration, warping, discoloration, and previous repair attempts with foil tape, as well as current rigid and flexible duct configurations in mechanical space. Provided assessment comparing repair versus full system replacement options given unit age and current condition.
Cincinnati, OH 45243
Completed full commercial HVAC system replacement including installation of Bryant GA4SAN52400N 2-ton 14 SEER condensing unit, Bryant CVAVA2414 evaporator coil, and Bryant 800SB36070 gas furnace. Removed existing equipment and disposed of all components per EPA regulations. Flushed refrigerant lines to ensure system cleanliness, installed new electrical disconnect and whip for proper power supply to outdoor unit. Fabricated and installed sheet metal transitions to connect new air handler to existing supply and return ductwork. Verified all electrical connections, tested gas furnace ignition and safety controls, and confirmed proper refrigerant charge and system operation. Obtained required permit for installation and ensured all work met local building codes and manufacturer specifications.
Completed full commercial HVAC system replacement including installation of Bryant GA4SAN52400N 2-ton 14 SEER condensing unit, Bryant CVAVA2414 evaporator coil, and Bryant 800SB36070 gas furnace. Removed existing equipment and disposed of all components per EPA regulations. Flushed refrigerant lines to ensure system cleanliness, installed new electrical disconnect and whip for proper power supply to outdoor unit. Fabricated and installed sheet metal transitions to connect new air handler to existing supply and return ductwork. Verified all electrical connections, tested gas furnace ignition and safety controls, and confirmed proper refrigerant charge and system operation. Obtained required permit for installation and ensured all work met local building codes and manufacturer specifications.
Erik M.
Erik M. Checked in
Completed full commercial HVAC system replacement including installation of Bryant GA4SAN52400N 2-ton 14 SEER condensing unit, Bryant CVAVA2414 evaporator coil, and Bryant 800SB36070 gas furnace. Removed existing equipment and disposed of all components per EPA regulations. Flushed refrigerant lines to ensure system cleanliness, installed new electrical disconnect and whip for proper power supply to outdoor unit. Fabricated and installed sheet metal transitions to connect new air handler to existing supply and return ductwork. Verified all electrical connections, tested gas furnace ignition and safety controls, and confirmed proper refrigerant charge and system operation. Obtained required permit for installation and ensured all work met local building codes and manufacturer specifications.
Cincinnati, OH 45231
Conducted commercial air conditioning replacement estimate and documented existing mechanical infrastructure. Inspected gas valve assembly, piping connections, and associated HVAC components in utility space, photographing brass valve fittings, flexible gas connectors, copper distribution lines, and equipment mounting configuration to provide accurate replacement specifications.
Conducted commercial air conditioning replacement estimate and documented existing mechanical infrastructure. Inspected gas valve assembly, piping connections, and associated HVAC components in utility space, photographing brass valve fittings, flexible gas connectors, copper distribution lines, and equipment mounting configuration to provide accurate replacement specifications.
Tony A.
Tony A. Checked in
Conducted commercial air conditioning replacement estimate and documented existing mechanical infrastructure. Inspected gas valve assembly, piping connections, and associated HVAC components in utility space, photographing brass valve fittings, flexible gas connectors, copper distribution lines, and equipment mounting configuration to provide accurate replacement specifications.
Cincinnati, OH 45230
Conducted on-site evaluation of existing HVAC system for air conditioning replacement estimate. Assessed current equipment configuration including Rheem furnace, existing ductwork infrastructure, and climate control components consisting of Honeywell thermostat and Aprilaire humidistat. Documented equipment specifications, spatial constraints in mechanical room, and photographed existing installation including refrigerant line routing, PVC condensate drainage, and supply/return duct layout to determine replacement system requirements and compatibility.
Conducted on-site evaluation of existing HVAC system for air conditioning replacement estimate. Assessed current equipment configuration including Rheem furnace, existing ductwork infrastructure, and climate control components consisting of Honeywell thermostat and Aprilaire humidistat. Documented equipment specifications, spatial constraints in mechanical room, and photographed existing installation including refrigerant line routing, PVC condensate drainage, and supply/return duct layout to determine replacement system requirements and compatibility.
Victoria M.
Victoria M. Checked in
Conducted on-site evaluation of existing HVAC system for air conditioning replacement estimate. Assessed current equipment configuration including Rheem furnace, existing ductwork infrastructure, and climate control components consisting of Honeywell thermostat and Aprilaire humidistat. Documented equipment specifications, spatial constraints in mechanical room, and photographed existing installation including refrigerant line routing, PVC condensate drainage, and supply/return duct layout to determine replacement system requirements and compatibility.
Cincinnati, OH 45242
Conducted comprehensive evaluation of existing heat pump system and provided detailed replacement estimate. Assessed current thermostat wiring configuration with R and C terminal connections and inspected HVAC control board with multiple zone capabilities, noting power, heating, and cooling relay operations with LED status indicators functioning properly during diagnostic assessment.
Conducted comprehensive evaluation of existing heat pump system and provided detailed replacement estimate. Assessed current thermostat wiring configuration with R and C terminal connections and inspected HVAC control board with multiple zone capabilities, noting power, heating, and cooling relay operations with LED status indicators functioning properly during diagnostic assessment.
Victoria M.
Victoria M. Checked in
Conducted comprehensive evaluation of existing heat pump system and provided detailed replacement estimate. Assessed current thermostat wiring configuration with R and C terminal connections and inspected HVAC control board with multiple zone capabilities, noting power, heating, and cooling relay operations with LED status indicators functioning properly during diagnostic assessment.
Cincinnati, OH 45243
Responded to commercial service call for two non-operational rooftop units (RTUs) on flat membrane roof. Upon arrival, accessed roof and inspected both units - one light gray/beige condenser showing moderate wear and one significantly aged unit with brown weathered casing exhibiting extensive rust and deterioration. Evaluated refrigerant line sets, electrical conduit connections, and overall system condition. Documented existing rooftop infrastructure including cable routing, insulated line sets, roof penetrations, and membrane patches indicating previous repair work. Both units assessed as beyond economical repair due to age, corrosion, and component failure. Provided comprehensive replacement estimate for both RTU systems including removal of existing equipment, proper disposal, new unit installation with updated refrigerant lines, electrical connections, roof curb adapters, and membrane sealing to maintain roof integrity.
Responded to commercial service call for two non-operational rooftop units (RTUs) on flat membrane roof. Upon arrival, accessed roof and inspected both units - one light gray/beige condenser showing moderate wear and one significantly aged unit with brown weathered casing exhibiting extensive rust and deterioration. Evaluated refrigerant line sets, electrical conduit connections, and overall system condition. Documented existing rooftop infrastructure including cable routing, insulated line sets, roof penetrations, and membrane patches indicating previous repair work. Both units assessed as beyond economical repair due to age, corrosion, and component failure. Provided comprehensive replacement estimate for both RTU systems including removal of existing equipment, proper disposal, new unit installation with updated refrigerant lines, electrical connections, roof curb adapters, and membrane sealing to maintain roof integrity.
Tony A.
Tony A. Checked in
Responded to commercial service call for two non-operational rooftop units (RTUs) on flat membrane roof. Upon arrival, accessed roof and inspected both units - one light gray/beige condenser showing moderate wear and one significantly aged unit with brown weathered casing exhibiting extensive rust and deterioration. Evaluated refrigerant line sets, electrical conduit connections, and overall system condition. Documented existing rooftop infrastructure including cable routing, insulated line sets, roof penetrations, and membrane patches indicating previous repair work. Both units assessed as beyond economical repair due to age, corrosion, and component failure. Provided comprehensive replacement estimate for both RTU systems including removal of existing equipment, proper disposal, new unit installation with updated refrigerant lines, electrical connections, roof curb adapters, and membrane sealing to maintain roof integrity.
Cincinnati, OH 45242
Provided comprehensive estimate for commercial HVAC system replacement at brick building facility. Evaluated existing outdoor condenser unit positioned on concrete pad near perimeter fencing, assessed current system capacity and condition, documented equipment specifications and installation requirements. Recommended replacement options for aging air conditioning system including proper sizing calculations, equipment specifications, and installation scope for new commercial-grade condensing unit with associated electrical and refrigerant line modifications.
Provided comprehensive estimate for commercial HVAC system replacement at brick building facility. Evaluated existing outdoor condenser unit positioned on concrete pad near perimeter fencing, assessed current system capacity and condition, documented equipment specifications and installation requirements. Recommended replacement options for aging air conditioning system including proper sizing calculations, equipment specifications, and installation scope for new commercial-grade condensing unit with associated electrical and refrigerant line modifications.
Victoria M.
Victoria M. Checked in
Provided comprehensive estimate for commercial HVAC system replacement at brick building facility. Evaluated existing outdoor condenser unit positioned on concrete pad near perimeter fencing, assessed current system capacity and condition, documented equipment specifications and installation requirements. Recommended replacement options for aging air conditioning system including proper sizing calculations, equipment specifications, and installation scope for new commercial-grade condensing unit with associated electrical and refrigerant line modifications.
Cincinnati, OH 45206
Completed estimate for replacement of 25-year-old gas furnace system located in basement utility area of bi-level residence. Assessed existing beige furnace unit with white PVC condensate and exhaust piping, along with adjacent water heater and ductwork configuration. Customer expressed interest in simultaneous furnace and air conditioning replacement to take advantage of combination system discount. Documented current equipment condition through photography, noting standard basement mechanical room layout with concrete flooring and typical utility connections. Provided comprehensive replacement options and pricing for coordinated HVAC system upgrade.
Completed estimate for replacement of 25-year-old gas furnace system located in basement utility area of bi-level residence. Assessed existing beige furnace unit with white PVC condensate and exhaust piping, along with adjacent water heater and ductwork configuration. Customer expressed interest in simultaneous furnace and air conditioning replacement to take advantage of combination system discount. Documented current equipment condition through photography, noting standard basement mechanical room layout with concrete flooring and typical utility connections. Provided comprehensive replacement options and pricing for coordinated HVAC system upgrade.
Victoria M.
Victoria M. Checked in
Completed estimate for replacement of 25-year-old gas furnace system located in basement utility area of bi-level residence. Assessed existing beige furnace unit with white PVC condensate and exhaust piping, along with adjacent water heater and ductwork configuration. Customer expressed interest in simultaneous furnace and air conditioning replacement to take advantage of combination system discount. Documented current equipment condition through photography, noting standard basement mechanical room layout with concrete flooring and typical utility connections. Provided comprehensive replacement options and pricing for coordinated HVAC system upgrade.
Cincinnati, OH 45240
Cincinnati, OH - Completed installation of Bryant 927TA48060V17 Preferred Series gas furnace in residential basement mechanical room. Connected all required PVC venting and drainage piping to unit, integrated furnace with existing ductwork system, and verified proper electrical connections. System tested and confirmed operational with all safety controls functioning within manufacturer specifications.
Erik M.
Erik M. Checked in
Completed installation of Bryant 927TA48060V17 Preferred Series gas furnace in residential basement mechanical room. Connected all required PVC venting and drainage piping to unit, integrated furnace with existing ductwork system, and verified proper electrical connections. System tested and confirmed operational with all safety controls functioning within manufacturer specifications.
Cincinnati, OH 45212
Conducted rooftop estimate for replacement of original 20+ year-old RTU at a school/daycare facility that had ceased operation. Documented existing equipment condition showing heavily soiled condenser coil with significant dirt and debris accumulation, extensive streaking and discoloration on exterior panels, and overall deterioration consistent with age and end of service life. Coordinated roof access and assessed replacement requirements for commercial rooftop unit.
Conducted rooftop estimate for replacement of original 20+ year-old RTU at a school/daycare facility that had ceased operation. Documented existing equipment condition showing heavily soiled condenser coil with significant dirt and debris accumulation, extensive streaking and discoloration on exterior panels, and overall deterioration consistent with age and end of service life. Coordinated roof access and assessed replacement requirements for commercial rooftop unit.
Tony A.
Tony A. Checked in
Conducted rooftop estimate for replacement of original 20+ year-old RTU at a school/daycare facility that had ceased operation. Documented existing equipment condition showing heavily soiled condenser coil with significant dirt and debris accumulation, extensive streaking and discoloration on exterior panels, and overall deterioration consistent with age and end of service life. Coordinated roof access and assessed replacement requirements for commercial rooftop unit.
Cincinnati, OH 45227
Conducted on-site assessment for mini-split system installation in residential kitchen area. Performed laser measurements of installation space to determine optimal placement and sizing requirements for one to two mini-split units. Documented existing kitchen layout and ceiling configuration to evaluate mounting options and refrigerant line routing for proposed ductless HVAC system.
Conducted on-site assessment for mini-split system installation in residential kitchen area. Performed laser measurements of installation space to determine optimal placement and sizing requirements for one to two mini-split units. Documented existing kitchen layout and ceiling configuration to evaluate mounting options and refrigerant line routing for proposed ductless HVAC system.
Victoria M.
Victoria M. Checked in
Conducted on-site assessment for mini-split system installation in residential kitchen area. Performed laser measurements of installation space to determine optimal placement and sizing requirements for one to two mini-split units. Documented existing kitchen layout and ceiling configuration to evaluate mounting options and refrigerant line routing for proposed ductless HVAC system.
Cincinnati, OH 45208
Conducted site assessment for mini-split installation in finished attic space with sloped ceilings and multiple rooms. Evaluated electrical panel capacity and photographed existing infrastructure to determine equipment requirements and installation specifications for proposed ductless system.
Conducted site assessment for mini-split installation in finished attic space with sloped ceilings and multiple rooms. Evaluated electrical panel capacity and photographed existing infrastructure to determine equipment requirements and installation specifications for proposed ductless system.
Victoria M.
Victoria M. Checked in
Conducted site assessment for mini-split installation in finished attic space with sloped ceilings and multiple rooms. Evaluated electrical panel capacity and photographed existing infrastructure to determine equipment requirements and installation specifications for proposed ductless system.
Cincinnati, OH 45206
Provided estimate for complete furnace replacement on 2011 Bryant unit with failed heat exchanger. Inspected basement mechanical room and documented existing equipment condition, including exposed internal components with blower motor and compromised heat exchanger assembly. Assessed exterior HVAC system configuration with dual condensing units mounted on concrete pad against brick foundation. Presented replacement options to address safety concerns associated with cracked heat exchanger and restore reliable heating operation to the residence.
Provided estimate for complete furnace replacement on 2011 Bryant unit with failed heat exchanger. Inspected basement mechanical room and documented existing equipment condition, including exposed internal components with blower motor and compromised heat exchanger assembly. Assessed exterior HVAC system configuration with dual condensing units mounted on concrete pad against brick foundation. Presented replacement options to address safety concerns associated with cracked heat exchanger and restore reliable heating operation to the residence.
Tony A.
Tony A. Checked in
Provided estimate for complete furnace replacement on 2011 Bryant unit with failed heat exchanger. Inspected basement mechanical room and documented existing equipment condition, including exposed internal components with blower motor and compromised heat exchanger assembly. Assessed exterior HVAC system configuration with dual condensing units mounted on concrete pad against brick foundation. Presented replacement options to address safety concerns associated with cracked heat exchanger and restore reliable heating operation to the residence.
Cincinnati, OH 45212
Conducted comprehensive evaluation of existing HVAC system including Goodman furnace unit and thermostat controls located in utility room. Documented current equipment configuration, wiring connections at thermostat terminal board (W, RH, R, RC terminals with corresponding colored wires), and PVC condensate drainage routing. Assessed system for replacement options and provided estimate for new air conditioning equipment installation.
Conducted comprehensive evaluation of existing HVAC system including Goodman furnace unit and thermostat controls located in utility room. Documented current equipment configuration, wiring connections at thermostat terminal board (W, RH, R, RC terminals with corresponding colored wires), and PVC condensate drainage routing. Assessed system for replacement options and provided estimate for new air conditioning equipment installation.
Victoria M.
Victoria M. Checked in
Conducted comprehensive evaluation of existing HVAC system including Goodman furnace unit and thermostat controls located in utility room. Documented current equipment configuration, wiring connections at thermostat terminal board (W, RH, R, RC terminals with corresponding colored wires), and PVC condensate drainage routing. Assessed system for replacement options and provided estimate for new air conditioning equipment installation.
Cincinnati, OH 45241
Conducted comprehensive site evaluation for geothermal HVAC system replacement at residential property. Assessed existing attic-mounted air handler unit with Honeywell Equipment Interface Module, ductwork configuration, and insulated supply lines to determine system integration requirements. Evaluated exterior electrical service capacity at meter and disconnect panel to verify adequate power supply for geothermal heat pump installation and documented site conditions for equipment sizing and placement recommendations.
Conducted comprehensive site evaluation for geothermal HVAC system replacement at residential property. Assessed existing attic-mounted air handler unit with Honeywell Equipment Interface Module, ductwork configuration, and insulated supply lines to determine system integration requirements. Evaluated exterior electrical service capacity at meter and disconnect panel to verify adequate power supply for geothermal heat pump installation and documented site conditions for equipment sizing and placement recommendations.
Tony A.
Tony A. Checked in
Conducted comprehensive site evaluation for geothermal HVAC system replacement at residential property. Assessed existing attic-mounted air handler unit with Honeywell Equipment Interface Module, ductwork configuration, and insulated supply lines to determine system integration requirements. Evaluated exterior electrical service capacity at meter and disconnect panel to verify adequate power supply for geothermal heat pump installation and documented site conditions for equipment sizing and placement recommendations.
Cincinnati, OH 45255
Cincinnati, OH - Responded to no cooling complaint on commercial air conditioning unit. Performed initial diagnostic inspection and documented unit identification number 3YP 01559. Visual inspection revealed weathered exterior cabinet with access to internal wiring and components. Further diagnostic work required to confirm root cause of system failure and determine necessary repairs.
Chad W.
Chad W. Checked in
Responded to no cooling complaint on commercial air conditioning unit. Performed initial diagnostic inspection and documented unit identification number 3YP 01559. Visual inspection revealed weathered exterior cabinet with access to internal wiring and components. Further diagnostic work required to confirm root cause of system failure and determine necessary repairs.
Cincinnati, OH 45202
Responded to commercial boiler not working call and performed diagnostic inspection of the main boiler system. Inspected and documented Apollo pressure relief valve assembly, verifying proper installation and operational status of the brass valve body with lever handle. Confirmed all safety components, copper piping connections, and valve identification tags were present and properly labeled for maintenance tracking purposes.
Responded to commercial boiler not working call and performed diagnostic inspection of the main boiler system. Inspected and documented Apollo pressure relief valve assembly, verifying proper installation and operational status of the brass valve body with lever handle. Confirmed all safety components, copper piping connections, and valve identification tags were present and properly labeled for maintenance tracking purposes.
Austin N.
Austin N. Checked in
Responded to commercial boiler not working call and performed diagnostic inspection of the main boiler system. Inspected and documented Apollo pressure relief valve assembly, verifying proper installation and operational status of the brass valve body with lever handle. Confirmed all safety components, copper piping connections, and valve identification tags were present and properly labeled for maintenance tracking purposes.
Cincinnati, OH 45220
Completed full HVAC system replacement for multi-unit residential property, installing two FT5ANXC36L00 fan coil units with R454B refrigerant in utility closets serving Apartments 1 and 2, along with two rooftop heat pump systems (one 246SAN03000A Preferred 2.5-ton heat pump and one 146SAN03000W 2.5-ton AC unit). Replaced both air handlers, purged linesets with nitrogen, and performed pressure leak testing to verify system integrity. Installed new disconnect boxes with fuses, replaced both thermostats, and added Bryant bypass humidifier for Apartment 2 system. Integrated TU-EC-15BKB 15kw and TU-EC-10BKB 10kw heat kits into new air handlers, installed new wet switches and overflow switches for condensate protection, and added filter rack for Apartment 1. Reconnected all units to existing drain lines and verified proper amperage draw and operational performance of completed systems.
Completed full HVAC system replacement for multi-unit residential property, installing two FT5ANXC36L00 fan coil units with R454B refrigerant in utility closets serving Apartments 1 and 2, along with two rooftop heat pump systems (one 246SAN03000A Preferred 2.5-ton heat pump and one 146SAN03000W 2.5-ton AC unit). Replaced both air handlers, purged linesets with nitrogen, and performed pressure leak testing to verify system integrity. Installed new disconnect boxes with fuses, replaced both thermostats, and added Bryant bypass humidifier for Apartment 2 system. Integrated TU-EC-15BKB 15kw and TU-EC-10BKB 10kw heat kits into new air handlers, installed new wet switches and overflow switches for condensate protection, and added filter rack for Apartment 1. Reconnected all units to existing drain lines and verified proper amperage draw and operational performance of completed systems.
Chris B.
Chris B. Checked in
Completed full HVAC system replacement for multi-unit residential property, installing two FT5ANXC36L00 fan coil units with R454B refrigerant in utility closets serving Apartments 1 and 2, along with two rooftop heat pump systems (one 246SAN03000A Preferred 2.5-ton heat pump and one 146SAN03000W 2.5-ton AC unit). Replaced both air handlers, purged linesets with nitrogen, and performed pressure leak testing to verify system integrity. Installed new disconnect boxes with fuses, replaced both thermostats, and added Bryant bypass humidifier for Apartment 2 system. Integrated TU-EC-15BKB 15kw and TU-EC-10BKB 10kw heat kits into new air handlers, installed new wet switches and overflow switches for condensate protection, and added filter rack for Apartment 1. Reconnected all units to existing drain lines and verified proper amperage draw and operational performance of completed systems.
Cincinnati, OH 45226
Completed full HVAC system replacement including a Bryant Legacy 2.5-ton 135SAN03000W condensing unit on roof and FJ5ANXB30L00 fan coil in utility closet utilizing R454B refrigerant. Crane service was utilized to remove existing rooftop condenser and install new unit. Reconnected system to existing return air box, copper lineset, and drain line while installing new heat kit in air handler. Performed nitrogen purge of lineset followed by pressure leak test to verify system integrity. Replaced electrical disconnect box with new fuses, installed new wet switch and overflow switch for condensate safety, and integrated existing thermostat with new equipment. Installed Bryant bypass humidifier with connection to available water supply in closet. System tested and operational upon completion.
Completed full HVAC system replacement including a Bryant Legacy 2.5-ton 135SAN03000W condensing unit on roof and FJ5ANXB30L00 fan coil in utility closet utilizing R454B refrigerant. Crane service was utilized to remove existing rooftop condenser and install new unit. Reconnected system to existing return air box, copper lineset, and drain line while installing new heat kit in air handler. Performed nitrogen purge of lineset followed by pressure leak test to verify system integrity. Replaced electrical disconnect box with new fuses, installed new wet switch and overflow switch for condensate safety, and integrated existing thermostat with new equipment. Installed Bryant bypass humidifier with connection to available water supply in closet. System tested and operational upon completion.
Erik M.
Erik M. Checked in
Completed full HVAC system replacement including a Bryant Legacy 2.5-ton 135SAN03000W condensing unit on roof and FJ5ANXB30L00 fan coil in utility closet utilizing R454B refrigerant. Crane service was utilized to remove existing rooftop condenser and install new unit. Reconnected system to existing return air box, copper lineset, and drain line while installing new heat kit in air handler. Performed nitrogen purge of lineset followed by pressure leak test to verify system integrity. Replaced electrical disconnect box with new fuses, installed new wet switch and overflow switch for condensate safety, and integrated existing thermostat with new equipment. Installed Bryant bypass humidifier with connection to available water supply in closet. System tested and operational upon completion.
Cincinnati, OH 45226
Conducted on-site assessment for mini-split installation in upper-level room with sloped ceiling. Evaluated space layout, electrical access, and optimal placement for indoor air handler unit to ensure efficient heating and cooling coverage for the attic bedroom area.
Conducted on-site assessment for mini-split installation in upper-level room with sloped ceiling. Evaluated space layout, electrical access, and optimal placement for indoor air handler unit to ensure efficient heating and cooling coverage for the attic bedroom area.
Victoria M.
Victoria M. Checked in
Conducted on-site assessment for mini-split installation in upper-level room with sloped ceiling. Evaluated space layout, electrical access, and optimal placement for indoor air handler unit to ensure efficient heating and cooling coverage for the attic bedroom area.
Cincinnati, OH 45213

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Trained Technicians

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24/7 Emergency Service

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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.

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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.