Key Heating & Air Conditioning
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About Key Heating & Air Conditioning
Key Heating & Air Conditioning operates in Alton, New Hampshire, providing heating and cooling services to residential and light commercial customers throughout the region. The company maintains 24-hour availability every day of the week, responding to emergency service calls around the clock. With 146 customer reviews yielding a 4.8-star average rating, the contractor has established a documented service record in the local market.
The company's operational model centers on rapid response and flexible scheduling. Multiple reviewers describe receiving same-day service when requesting urgent appointments, including situations arising during extreme weather conditions. This responsiveness appears to be a distinguishing operational characteristic rather than a promotional claim.
What Customers Say
Four reviewers specifically mention same-day or same-hour emergency response, with two praising technicians by name for their diagnostic approach. One negative review cites incomplete new installation work, while positive reviews emphasize quick arrival times and thorough troubleshooting.
Working Hours
| Sunday | Open 24 hours |
| MondayToday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| Thursday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
Services
Heating System Repair & Maintenance
Diagnosis and repair of furnaces, heat pumps, and heating equipment for residential and light commercial properties.
Cooling System Repair & Maintenance
AC repair, refrigerant service, and system diagnostics for air conditioning units including mini-split systems.
New Equipment Installation
Installation of new heating and cooling systems, though one reviewer reported issues with incomplete startup procedures.
Emergency Service Calls
24-hour availability for urgent heating and cooling problems requiring same-day or after-hours response.
System Diagnostics & Troubleshooting
Technical assessment of heating and cooling issues, with one reviewer praising thorough explanation of needed repairs.