24/7 Emergency HVAC Service Call (408) 841-4588
Home › Residential HVAC › Repair

Residential HVAC Repair in the Bay Area, Sacramento & Central Valley

Is your air conditioner blowing warm air, your furnace refusing to start, or your heat pump stuck in one mode? Our licensed and insured technicians diagnose and repair every residential heating and cooling problem from AC, furnaces, heat pumps, and boilers to leaky ductwork with same-day service across San Jose, Sacramento, Modesto, and 30+ surrounding cities. With 8,000+ jobs completed and a 98% satisfaction rate, we fix it right the first time on all major brands.

Call (408) 841-4588
💡 Pro Tip
Technician inspecting a residential heat pump before repair
A fast diagnosis keeps a small problem from becoming a big bill.
Expert Advice

Repair or Replace? Decide in 30 Seconds

Before you approve a repair, use this quick rule. If your system is under 10 years old and the fault is one part like a capacitor, ignitor, or contactor, a repair usually pays for itself. If it is over 12 years old, uses R-22 refrigerant, or has broken down twice in one season, replacement is often the smarter five-year investment.

The 50% Rule

  • Repair a single low-cost component on a healthy system.
  • Replace when the repair costs more than half of a new system.
  • Compare the energy savings a high-efficiency unit adds.
✓ Honest recommendations we never push a replacement you don't need
Repair Services

Residential HVAC Repair Services

Residential AC repair technician

AC Repair

From frozen coils and refrigerant leaks to compressor failures and faulty thermostats, we diagnose and repair every central air conditioning problem on Carrier, Trane, Lennox, and Goodman systems most completed the same day.

Request This Service →
Residential furnace repair

Furnace Repair

Cold air, short cycling, or a furnace that won't start? We repair ignitors, flame sensors, blower motors, and heat exchangers on Trane, Lennox, and Goodman gas furnaces so your home stays warm and safe all winter.

Request This Service →
Heat pump repair

Heat Pump Repair

Stuck in one mode, icing up, or blowing lukewarm air? We repair reversing valves, compressors, defrost controls, and refrigerant leaks on Mitsubishi, Daikin, and Carrier heat pumps for reliable year-round comfort.

Request This Service →
Residential boiler repair

Boiler Repair

Banging pipes, cold rooms, or pressure swings? We repair circulator pumps, zone valves, expansion tanks, and aquastats on Weil-McLain and Bosch hydronic systems to restore safe, even heat.

Request This Service →
Duct repair and leak sealing

Duct Repair & Leak Sealing

Losing up to 30% of your heated and cooled air through leaky ducts? We locate and repair holes, disconnected joints, and crushed sections so your system stops wasting energy and every room stays comfortable.

Request This Service →
What We Repair

Residential HVAC Repair That Gets It Right the First Time

When your comfort fails, every hour matters. Our residential HVAC technicians start with a full diagnostic, show you the failed part, and quote the job before any work begins so there are never surprise charges. Because we stock common parts on every truck, most repairs are completed the same day across San Jose, Sacramento, Modesto, and the surrounding Central Valley.

From frozen evaporator coils and refrigerant leaks to failed ignitors, blower motors, and heat exchangers, our factory-trained team repairs every major brand, including Carrier, Trane, Lennox, Rheem, Goodman, Daikin, and Mitsubishi Electric. Every repair carries a workmanship warranty, and all replacement parts include the manufacturer's warranty for lasting peace of mind.

Warning signs to watch for

  • Warm air from vents or uneven room temperatures
  • Strange noises, burning smells, or short cycling
  • Rising energy bills with no change in usage
  • Weak airflow, ice on the coils, or water leaks

Not sure whether to repair or replace? See residential installation options, or prevent the next breakdown with our maintenance plans. For urgent help, call 408-841-4588 24/7.

FAQ

Residential Repair Questions

How fast can you arrive for a residential HVAC repair?

For emergencies we target 60 minutes in the Bay Area, 90 minutes in Sacramento, and about 2 hours in Modesto and the Central Valley. Call 408-841-4588 and we'll dispatch the nearest available technician.

Do you repair all brands of heating and cooling equipment?

Yes. We're brand-agnostic and repair Carrier, Trane, Lennox, Rheem, Goodman, Daikin, Mitsubishi Electric, Bosch, Weil-McLain, and every other major manufacturer, so you never need to call around.

How much does a residential repair cost?

Repair costs vary by the part that failed and your system's age, so we diagnose the root cause first and quote the job before work begins. Minor fixes like capacitors and contactors cost far less than a compressor or heat exchanger replacement.

Should I repair my system or replace it?

A good rule of thumb: if your system is under 10 years old and the repair is a single component, repair makes sense. If it is older and repairs keep stacking up, replacement is usually the smarter long-term investment and we'll give you an honest recommendation either way.

Do you back your repairs with a warranty?

Yes. Every repair includes a workmanship warranty, and replacement parts carry the manufacturer's warranty. Ask your technician for the specific terms when we arrive.

Looking for a new system or a tune-up instead? See residential installation or maintenance plans.

Need a Fast HVAC Repair? We're Available 24/7

Call 408-841-4588 for same-day repair, or explore our installation and maintenance services.

Call 408-841-4588
Aurian HVAC Assistant
Online now · Replies instantly
Hi. I am the Aurian HVAC Assistant. What problem are you experiencing?
We got your request! Our team will get back to you shortly.