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Common HVAC repairs in Hattiesburg
- 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
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What customers say “After speaking with Mr. James the owner, we came to a mutual agreement. At the moment I am satisfied with the Generac…”
- KDC Air & HeatTop rated
What customers say “Update: Aug 2024 - We had KDC install a new Thermostat. Explained everything. Made sure we understood the new…”
- Mingledorffs - HattiesburgTop rated
What customers say “I cannot recommend Scott and his HVAC services highly enough. From start to finish, the experience was professional,…”
What customers say “We want to thank Bellevue Air Conditioning, Heating & Electric for all the hard work. We called an they came out to…”
- Bennett Heating & AirTop rated
What customers say “Wonderful experience from start to finish. They worked all day getting our new unit in. They were very attentive to…”
- Bowman Heating & Air ConditioningTop rated
What customers say “Patrick called me before arriving. He was very courteous and friendly. He put shoe covers over his shoes to keep from…”
- Alan's A/C, Heat, & ElectricTop ratedinstallationrepairinspection
What customers say “Highly recommended! I had to replace an aging 5 ton unit this spring. I got three estimates for comparable units. Alan…”
- Cannon Heating & Air Service LLCTop rated
What customers say “I absolutely recommend Cannon Heating and Air. Shane communicated with us closely from setting an arrivial time to…”
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 Hattiesburg. 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 Hattiesburg 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 Hattiesburg?
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: Mississippi State Board of Contractors (commercial work over $50,000 / residential over $10,000; municipal licensing handles residential otherwise) · Company data: verified business records + Google Business profile
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