Repairs · Derry Village, NH
HVAC Repair in Derry Village
Compare licensed HVAC repair pros in Derry Village, NH. Typical repair tickets run $743–$7,563.
7 pros rankedLicense-verifiedWritten estimates
On this page
Common HVAC repairs in Derry Village
- 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 →- installationrepairemergency
What customers say “These guys are TOP NOTCH!! My unit failed in the middle of a cold snap and they had my entire boiler replaced in a…”
- Rob Roy MechanicalTop ratedinstallationrepairemergency
What customers say “Fantastic service and excellent communication. Could not be happier with the service and installation. Rob and team are…”
- Derry Plumbing & HeatingTop ratedinstallationrepairemergency
What customers say “They were amazing. We faced an emergent situation and they responded in minutes. Within the hour we had repair men a…”
- Cal's Air Conditioning & HeatingTop rated
What customers say “We first called on Cal’s, a few years ago, when our AC was only blowing hot air. I was expecting a huge cost to repair.…”
- Kingdom CoolingTop rated
What customers say “These guys are terrific. They work well together and are responsive to the needs at hand. We bought an off brand…”
- Hatfield Brothers Mechanical LLCTop ratedinstallationrepairemergency
What customers say “Hatfield Brothers Mechanical has maintained my home furnace for many years. They have extensive experience in the…”
What customers say “Scott from S&E Cataldi answered my emergency call on a frigid Friday night (after business hours) and after my furnace…”
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
Derry Village repair range$743 – $7,563per repair visit
Derived from local HVAC benchmarks in Derry Village. 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 Derry Village 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 Derry Village?
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.
Licensing verified weekly. Reviews refreshed within the last 30 days.
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
See our editorial standardsReport inaccurate info about HVAC repair in Derry Village
Get Derry Village repair quotes
Two or three written quotes is the fastest way to normalize a repair bill — we'll connect you with top-ranked local pros.