Repairs · Great Falls, MT
HVAC Repair in Great Falls
Compare licensed HVAC repair pros in Great Falls, MT. Typical repair tickets run $608–$6,188.
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Common HVAC repairs in Great Falls
- 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
- AT KlemensTop ratedinstallationrepairinspectionemergency
What customers say “Dave came by and did a very speedy and courteous job on our sink drain. AT Klemens are our go to company for our house…”
- All About You Plumbing and HeatingTop ratedinstallationrepairemergency
What customers say “Starting w the scheduling Kellie was wonderfully pleasant and accommodating. Ihad them replace pipes under kitchen sink…”
- Falls Mechanical Services LLCTop rated
What customers say “⭐️ Highly recommend Falls ! MechanicalOur boiler… only three years old, went out early Thanksgiving morning. We woke up…”
- B & B Heating & Air ConditioningTop rated
What customers say “The crew was professional and friendly and, so far as I can tell, they did a great job installing the system. My only…”
- Talon Plumbing & Heating Inc.Top ratedinstallationrepairemergency
What customers say “Donato and Blake were professional and thorough on our walk through. We have numerous bathroom projects to update our…”
- Nelson Comfort SolutionsTop ratedinstallationrepairinspectionemergency
What customers say “I've used Nelson Comfort Solutions twice now. My parents have used them as well. I would highly recommend them. Travis…”
- Miller Mechanical LLCTop ratedinstallationrepairemergency
What customers say “Dave was notified the day before that my hot water heater went out, by my landlord, Great Falls was out of stock on the…”
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 Great Falls. 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 Great Falls 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 Great Falls?
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: Montana Department of Labor & Industry — Independent Contractor / Construction Contractor Registration and Building Codes Bureau · Company data: verified business records + Google Business profile
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