Repairs · Modesto, CA
HVAC Repair in Modesto
Compare licensed HVAC repair pros in Modesto, CA. Typical repair tickets run $948–$9,653.
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Common HVAC repairs in Modesto
- 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 →- Loves AirTop pick
What customers say “We had a HVAC tune up & inspection last month. Our traditional original gas furnace & A/C were still running but we’re…”
- DeHart Plumbing, Heating & Air, Inc.Top ratedinstallationrepairemergency
What customers say “Jonah arrived ready to climb the ladder and get to the root of problem why my heater was not operating. He provided a…”
What customers say “Express my sincere appreciation for the exceptional service provided by Roy during his recent visit to service my…”
What customers say “Love this company. Installed our air conditioner and heater in 2017. It came with a 10 year parts and service warranty.…”
What customers say “Had an amazing experience working with Cencal. When replacing your complete AC system it becomes a long term…”
- Bailey's Heating & Air, Inc.Top rated
What customers say “My first experience with Baileys's HVAC was great . Starting with the office staff, great communication with me as the…”
- A L Affordable Air & Heat IncTop rated
What customers say “A L Affordable Inc are wonderful to work with. They are timely, kind, and knowledgeable. They replaced my AC unit with…”
- Essentra Heating & Air, Inc.Top rated
What customers say “We recently had a new 2 zone mini split installed in an ADU and ran into an issue with the heating. A technician came…”
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
Modesto repair range$948 – $9,653per repair visit
Derived from local HVAC benchmarks in Modesto. 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 Modesto 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 Modesto?
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: Contractors State License Board (CSLB) · Company data: verified business records + Google Business profile
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