Are your Furnace Repair services available in Ontario?

Yes, AAA Pro HVAC provides round-the-clock Furnace Repair services directly in Ontario, CA.

How much does emergency service cost in Ontario?

We offer upfront, transparent pricing with no hidden fees for all service calls in Ontario.

Certified Gas & Electric Furnace Technicians

Safety-First Furnace Diagnostics

Pilot Light Out? Ignitor Failed? Furnace Repair in Ontario, CA Fixes It Right

Name: AAA Pro HVAC
Telephone: +1-866-805-8548
Price range: $$
Rating: 4.9

Every furnace call starts with a combustion and carbon monoxide safety check, not just a symptom fix.

Heat exchanger cracks, ignitor failures, and gas valve issues all fall within our scope.

If you're dealing with a pilot light that won't stay lit, an ignitor that clicks but never catches, or a furnace that runs but blows cold air, you already know furnace failures carry a safety dimension — carbon monoxide and gas leaks — that most other HVAC repairs don't, so the diagnostic has to start there.

☎ Call +1-866-805-8548 Now Check Coverage in Ontario, CA

Licensed Furnace Repair service in Ontario, CA - AAA Pro HVAC

Waiting rarely saves money and often turns a same-day repair into a longer, more involved job.

Why Choose Our Specialized Furnace Repair in Ontario, CA

AAA Pro HVAC built its furnace repair process around one idea: diagnose first, quote honestly, fix it right.

Every truck across Ontario, CA carries the tools and common parts specific to furnace repair, so most calls finish in a single visit.

Professional Furnace Repair technician working in Ontario, CA

Combustion & CO Safety Checks

Cracked heat exchangers get flagged immediately as a safety issue, not just a repair line item.

Gas & Electric Certified Technicians

We carry manufacturer service manuals for major furnace brands.

Flat-Rate Furnace Pricing

Diagnosis happens first, and the quoted flat rate reflects the actual confirmed fault.

Cold-Weather Priority Dispatch

We understand a dead furnace in winter is a pipe-freezing risk, not just a comfort issue.

Furnace Repair Done Right, Every Time

From the first symptom to the final fix, these are the specific furnace repair services our Ontario-area crews are equipped for.

Ignitor & Pilot Light Repair

Standing pilot systems get checked for thermocouple failure, the most common cause of a pilot that won't hold. This is one of the most requested furnace repair calls we get across Ontario, CA.

Gas Valve Diagnostics

Faulty gas valves are treated as a safety-critical repair, prioritized accordingly. This is one of the most requested furnace repair calls we get across Ontario, CA.

Heat Exchanger Inspection & Repair

A cracked heat exchanger is a carbon monoxide risk and gets flagged immediately with the furnace shut down if needed. This is one of the most requested furnace repair calls we get across Ontario, CA.

Blower Motor & Limit Switch Repair

We test motor amp draw against rated spec before replacement. Techs handling blower motor & limit switch repair carry the specific parts and tools this job calls for, not a generic kit.

Flue & Venting Repair

We inspect the full flue run, not just the connection at the furnace. This is one of the most requested furnace repair calls we get across Ontario, CA.

Thermostat & Control Board Diagnostics

A furnace that won't respond to the thermostat at all sometimes traces to a control board fault rather than the burner assembly. This is one of the most requested furnace repair calls we get across Ontario, CA.

24/7 Emergency Furnace Repair experts in Ontario, CA

From Call to Fixed: Our Furnace Repair Workflow

Call Dispatch

Tell us the symptom — no ignition, cold air, gas smell, or error code — and we route accordingly.

Rapid Mobile Arrival

We confirm your Ontario address and a realistic arrival window.

Expert Assessment & Quote

Flat-rate quote follows the confirmed fault, before repair begins.

Guaranteed Resolution

Most ignition and control repairs finish same-visit.

Reliable Furnace Repair contractor in Ontario, CA by AAA Pro HVAC

Real Reviews From Real Furnace Repair Calls

★★★★★

Furnace kept clicking like it wanted to light and never catching.

Harriet W. — Ontario, CA

★★★★★

Turned out to be a failed gas valve — they caught it with a proper pressure test, not a guess.

Cyrus B. — Ontario, CA

★★★★★

They found a hairline crack in the heat exchanger I never would've noticed.

Fiona R. — Ontario, CA

★★★★★

Thermocouple was the culprit, replaced and tested before the tech left.

Nolan P. — Ontario, CA

Trusted Furnace Repair service in Ontario, CA - AAA Pro HVAC

Common Furnace Repair Questions in Ontario, CA

Why does my furnace click but never actually light?+

A clicking-but-not-lighting pattern is one of the most common furnace complaints we diagnose.

Is a cracked heat exchanger dangerous?+

We'll walk you through options including repair versus replacement honestly.

Why is my furnace running but blowing cold air?+

Could be a delayed ignition fault, a failed gas valve, or a limit switch issue — a full diagnostic narrows it down.

Do you service both gas and electric furnaces?+

Electric resistance furnaces fail differently than gas units, and we diagnose accordingly.

How urgently should I call if I smell gas near my furnace?+

Immediately — leave the area and call, don't attempt to diagnose it yourself.

How fast can a furnace tech reach Ontario during a cold snap?+

No-heat calls during freeze warnings are prioritized across Ontario, CA.

Affordable Furnace Repair solutions in Ontario, CA

Furnace Repair Coverage Across Ontario, CA

We Cover Ontario and Beyond

Whether you're in the heart of Ontario or one of the surrounding communities, dispatch routes the closest available technician.

☎ Call +1-866-805-8548 for Ontario Service

Top rated local Furnace Repair specialists in Ontario, CA

Ontario is a city in southwestern San Bernardino County in the U.S. state of California, 35 miles (56 km) east of downtown Los Angeles and 23 miles (37 km) west of downtown San Bernardino, the county seat. Located in the western part of the Inland Empire metropolitan area, it lies just east of Los Angeles County and is part of the Greater Los Angeles Area. As of the 2020 Census, the city had a population of 175,265.