Repairs · Rockville, MD
HVAC Repair in Rockville
Compare licensed HVAC repair pros in Rockville, MD. Typical repair tickets run $776–$7,906.
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Common HVAC repairs in Rockville
- 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 →- installationrepairinspectionemergency
What customers say “We had an excellent experience with technician S. Richardson and would highly recommend his services. He provided a…”
- Heil Plumbing & HVACTop ratedinstallationrepairemergency
What customers say “Otto and his crew were very professional, respectful, timely, and efficient. Otto explained the entire main waterline…”
- installationrepairemergency
What customers say “I had an excellent experience with C.D. Shanahan’s Heating & Cooling, and especially with Rick Harris, the advisor who…”
- Vito ServicesTop ratedinstallationrepairemergency
What customers say “Incredible and Heartfelt Customer Service! 5 stars but I'd give them 100 if I could! Vito Services was incredible —…”
What customers say “I had my unit replaced with Anthony & Sons 08/24 . So my mother’s heating unit went out last Wednesday. They were my…”
What customers say “We had an excellent experience with B&B. A different HVAC company inspected our furnace and claimed there were major…”
- Glenmont Heating & Air ConditioningTop rated
What customers say “About 4 months ago I had Glenmont HVAC install a ductless mini split unit in my upstairs bedroom. I have a Cape…”
- Quality Air Services, LLCTop rated
What customers say “I recently needed some Convector Air/Cooling/Heating repairs in my two units and contacted Quality Air to assist and…”
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
Rockville repair range$776 – $7,906per repair visit
Derived from local HVAC benchmarks in Rockville. 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 Rockville 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 Rockville?
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: Maryland Department of Labor — Board of Heating, Ventilation, Air-Conditioning, and Refrigeration Contractors (HVACR Board) · Company data: verified business records + Google Business profile
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