Repairs · Keene, NH
HVAC Repair in Keene
Compare licensed HVAC repair pros in Keene, NH. Typical repair tickets run $698–$7,109.
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Common HVAC repairs in Keene
- Heat pump not cooling on humid summer days — low refrigerant, frozen coil, or failing capacitor.
- Furnace short-cycling in winter — dirty flame sensor, oversized equipment, or thermostat miscalibration.
- AC blowing warm air — condenser-fan failure, tripped high-pressure switch, or refrigerant leak.
- Uneven temperatures room-to-room — failing zone damper, duct leakage, or blower-motor issue.
- Loud banging, squealing, or grinding from the air handler — bearings, belt, or blower-wheel imbalance.
- Thermostat shows the right setpoint but the system won't start — control board, transformer, or wiring fault.
- Water pooling at the air handler — clogged condensate drain or cracked pan.
- Frozen evaporator coil that keeps icing over — airflow restriction or low charge.
Ranked shortlist
Request quotes →- Sanford Temperature ControlTop pickinstallationrepairinspectionemergency
What customers say “My experience with Sanford control was everything I could ask for. Everything was explained thoroughly. All workers…”
- Bergeron Mechanical SystemsTop rated
What customers say “After exploring the idea of installing Mitsubishi HyperHeat H2i heat pumps in our Southern NH home of almost 50 years,…”
- Ciardelli Fuel Company, Inc.Top rated
What customers say “I worked with Carrie in 2019 to transition a rental property from another propane company that was significantly…”
- Triumph Home ServicesTop ratedinstallationrepairinspectionemergency
What customers say “I was very pleased with entire service. The two service calls were arranged for the following days and the serviceman…”
- installationrepairinspection
What customers say “We used Brosseau Electric after moving into our new home. Our electric panel was in need of full replacement. We also…”
- installationrepairemergency
What customers say “Absolutely the best! We had a pipe burst and lost our water and heat when it was really cold. Called a couple different…”
- New England Trade SchoolTop rated
What customers say “I had a great experience with this HVAC program. I came in with very little background, and the lessons were easy to…”
- Cota & CotaTop rated
What customers say “During the past several months, we've required emergency service from Cota and Cota. One service call was to repair…”
Repair vs replace: quick decision tree
- Age > 15 years — Expect diminishing returns on any single repair. Start pricing replacement in parallel, especially if a second failure in the last 24 months.
- Repair cost > 50% of replacement — A $2,500 repair on an $8,000 system rarely pencils. Run the 5-year math: repair cost + likely follow-on failures vs new-system financing.
- Uses obsolete refrigerant (R-22) — R-22 is phased out; refills are both expensive and short-lived. Replacement is almost always the right call.
- Failed a major component (compressor, heat exchanger) — These are “the system”. A compressor on a 12-year-old condenser is a replacement signal, not a repair.
Typical repair cost range
Derived from local HVAC benchmarks in Keene. Most repair tickets fall well below full-system pricing — expect simple swaps (capacitor, ignitor, thermostat) at the low end and major component replacements (blower motor, control board, compressor) at the high end.
Estimate your Keene repair
Pick the repair type and your system's age for a ballpark range. Real quotes vary by part availability and diagnosis — use this as a sanity check before approving work.
Frequently Asked Questions
How long does a typical HVAC repair take in Keene?
Most diagnoses take 30–60 minutes on site. Small repairs (capacitor swap, thermostat, ignitor) finish the same visit. Parts-on-order repairs can push the job 1–5 business days depending on supplier stock.
Do repairs come with a warranty?
Labor warranties of 30–90 days are common; parts usually carry the manufacturer's warranty (1–10 years). Always get the warranty terms in writing on the invoice before the tech leaves.
How do I avoid common repair scams?
Red flags: no written estimate before work starts, refrigerant refill with no leak search, blanket recommendation to replace without an inspection, or very high "after-hours" pricing on a non-emergency call. Two written quotes for any repair over $600 is the fastest sanity check.
When should I replace instead of repair?
When the repair estimate exceeds 50% of a new system, or the unit is past 15 years, or it uses obsolete refrigerant (R-22), replacement usually wins the 5-year math. Otherwise repair is almost always the better call.
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Licensing data: New Hampshire Mechanical Licensing Board — State Fire Marshal's Office (gas fitters only; no statewide HVAC contractor license) — NEEDS-VERIFY · Company data: verified business records + Google Business profile
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