HVAC Repair Las Vegas – Heating & Cooling System Repair
Whole-system HVAC repair in Las Vegas: AC, gas furnaces, heat pumps, ductwork and controls. One call covers the full system — diagnosis first, flat price before work.
Calls answered 7:00 AM – 9:00 PM PT, 7 days a week
One system, one call
HVAC is the whole climate system of your home — the cooling equipment, the heating equipment, the ductwork that moves the air, and the controls that run it all. These parts are connected: your furnace and your AC share the same blower and ducts, and a “heating problem” in January and a “cooling problem” in July are often the same worn blower motor showing up in different seasons. A proper HVAC repair call diagnoses the system, not just the box that is making noise.
Cooling: the Las Vegas main event
Cooling is 90% of HVAC workload in the valley. The cooling season runs roughly April through October, with July and August highs routinely between 105°F and 115°F. The common cooling-side repairs:
- Contactor and capacitor failures — the two most frequent summer breakdowns
- Compressor diagnosis and replacement
- Refrigerant leak detection and recharge
- Condenser and blower fan motor replacement
- Condensate drain and drain pan repair — the attic-leak special
Heating: short season, real failures
Las Vegas winters are mild but not warm — December and January nights drop into the 30s, and a dead furnace is a genuine problem. Valley homes heat mostly with gas furnaces and heat pumps. Common heating repairs: hot surface igniters, flame sensors, inducer motors, control boards, and — on heat pumps — reversing valves and defrost controls. The winter side is covered in detail on the heating and furnace repair page.
Ventilation: the hidden third of the system
Ductwork in Las Vegas attics works in brutal conditions — attic air can exceed 140°F in summer, which cooks duct insulation and dries out flex-duct connections. Crushed runs, disconnected boots and leaky plenums show up as rooms that never cool, dust that returns hours after cleaning, and power bills out of proportion to the thermostat setting. Duct sealing and repair typically runs $300–$1,500 per visit depending on how much of the attic system needs work.
Symptoms that call for whole-system diagnosis
- System runs but cannot cool the house
- Warm air from the vents in cooling mode
- Nothing turns on — heating or cooling
- Some rooms hot, others cold, with the same thermostat setting
- Grinding, squealing or rattling from the air handler or furnace
- Power bills climbing year over year with no change in use
What it costs in Las Vegas
| Repair | Typical Las Vegas range | Note |
|---|---|---|
| Diagnostic / service call fee | $75–$200 | Often credited toward the repair |
| Blower motor replacement (PSC) | $300–$900 | |
| Control board replacement | $300–$900 | |
| Duct sealing / repair (per visit) | $300–$1500 | |
| Furnace igniter / flame sensor | $150–$450 |
Ranges aggregated from HomeGuide, Angi and HomeAdvisor cost guides and Las Vegas–area contractor pricing pages, collected October 2026.
Exact price only after diagnosis — call +1 (725) 360-1290. Full list on the Las Vegas AC repair cost page.
Repair or replace?
Because heating and cooling share components, the replace decision should consider the whole system: if the furnace is original and the AC compressor just died, replacing both sides together is usually cheaper than two separate jobs a year apart. The $5,000 rule gives you the quick math; the technician gives you the real numbers for your specific equipment.
Service areas
Whole-system HVAC repair is available across the valley: Henderson, North Las Vegas, Summerlin, Spring Valley, Enterprise and Las Vegas proper — see all service areas.
Frequently asked questions
What counts as HVAC repair versus just AC repair?
HVAC covers the whole system — heating, ventilation and air conditioning. AC repair is the cooling side only. In Las Vegas homes the “H” usually means a gas furnace or a heat pump, the “V” means ductwork and airflow, and the “AC” is the cooling equipment. A full HVAC diagnosis looks at all of it, because heating and cooling share the blower, ducts and controls.
Do heat pumps need different repair than regular AC?
Yes — a heat pump adds a reversing valve and defrost controls to the standard AC parts. Symptoms like blowing cold air in heating mode or a frozen outdoor unit in winter point at heat-pump-specific parts, though the compressor, capacitor and contactor are common to both.
How much does HVAC repair cost in Las Vegas?
Most repairs fall between $150 and $900; a diagnostic visit runs $75–$200. Major components like compressors and coils run higher. Full ranges with sources are on the cost page.
My vents blow but some rooms stay hot — is that HVAC repair?
Usually yes — that is the “V” (ventilation). Crushed or disconnected ductwork, failed dampers and leaky attic ducts are common in valley homes, especially where attic temperatures exceed 140°F and duct insulation degrades. Diagnosis measures airflow and static pressure, not just the equipment.
Should I repair or replace my HVAC system?
Start with the $5,000 rule — age times repair cost, over $5,000 favors replacement. Then factor refrigerant type and repair history. Details in our $5,000 rule article.
Do you work on both gas furnaces and heat pumps?
Yes — partner technicians handle gas furnace repair (igniters, flame sensors, boards, inducer motors) and heat pump repair (reversing valves, defrost boards, refrigerant). See the heating repair page for the winter side.
Need AC repair today?
Call now and we will connect you with a licensed Las Vegas valley HVAC technician. Exact pricing is confirmed after on-site diagnosis — no surprises.