Furnace Repair in the Inland Empire
Your heat stopped working. We can fix it today.
Most furnace repairs in the Inland Empire run $89 to $600. The most common failures — igniter replacement, flame sensor cleaning, and capacitor issues — are same-day fixes we carry parts for on every service truck. We provide an upfront quote after diagnosis before starting any work.
Our licensed technicians (CA LIC# 1140776) service all major furnace brands and include a carbon monoxide safety check on every furnace call. 24/7 emergency service available throughout Riverside County and San Bernardino County.

Repair or replace your furnace? Repair when the cost is less than 50% of replacement and the furnace is under 15 years old. Replace when the repair is costly, the heat exchanger is cracked, or the unit is old enough that further failures are likely. We give you an honest comparison — we don’t push replacement to run up a larger ticket.
Common Furnace Problems We Fix
Furnace Won't Light
The most common furnace failure in the Inland Empire — particularly in October and November when furnaces first turn on after months of summer idle. Most no-ignition calls are caused by a failed igniter (the component that glows to light the burners) or a dirty flame sensor that fails to confirm the burner lit and shuts the gas off as a safety measure. Both are straightforward repairs we carry parts for on the truck.
Furnace Blowing Cold Air
If your furnace turns on but blows cold air, the burners aren't lighting. Common causes: faulty igniter, dirty flame sensor, tripped high-limit switch from overheating, or a gas supply issue. Check that your gas is on and your filter isn't completely blocked. If both are fine and it's still blowing cold, call us.
Short-Cycling
A furnace that turns on and off repeatedly without completing a heating cycle is short-cycling. Most common causes: a dirty filter restricting airflow and tripping the high-limit switch, a faulty flame sensor, or an oversized furnace that heats too quickly. Ignoring short-cycling stresses the heat exchanger and can lead to cracks.
Cracked Heat Exchanger
The heat exchanger separates combustion gases (including carbon monoxide) from the air circulating through your home. A crack is the most serious furnace safety issue — it allows CO to enter the living space. If your CO detector has alarmed near the furnace, or you notice a burning smell when the heat runs, shut off the furnace and call us. Do not restart it until the heat exchanger is inspected. This issue can also create indoor air quality concerns throughout the home.
Control Board Failure
The control board is the brain of the furnace — it sequences ignition, manages safety controls, and communicates with the thermostat. Control board failures can cause a range of symptoms: furnace won't start, runs but shuts off mid-cycle, or displays fault codes. Replacement runs $300–$600 depending on the board. We diagnose before quoting.
Gas Valve Issues
A failed or stuck gas valve prevents gas from reaching the burners — the furnace tries to ignite but no flame appears. This is less common than igniter or sensor failures but needs prompt attention. We test the valve as part of diagnosis and quote repair or replacement based on the findings.
Our Repair Process
Call or Book
Call (800) 697-4014 or submit a quote request. 24/7 for emergencies — same-day for non-emergencies.
Diagnosis
Your technician inspects the system, runs fault code retrieval if applicable, and identifies the root cause before quoting any work.
Upfront Quote
You see the price before we start. Parts and labor, no add-ons mid-job.
Repair & Test
We complete the repair, run the system through a full heating cycle, and verify CO levels in the flue. Workmanship warranty included.
Why Inland Empire Homeowners Choose Water Heater SOS
24/7 emergency service
Furnace failures are emergencies, especially for households with elderly members or in higher-elevation areas where overnight temps can drop below freezing.
Licensed HVAC technicians
CA LIC# 1140776, C-20 classification. CO safety inspection included on every furnace call.
Heat exchanger honesty
If the heat exchanger is cracked, we document it with photos and won't restart the furnace without your authorization. No pressure to make a decision under stress.
Repair vs. replace guidance
We give you an honest comparison when the repair cost approaches replacement cost. We don't push replacement to drive a larger ticket.
All major brands
Carrier, Trane, Lennox, Rheem, Goodman, York, American Standard, Bryant. We arrive with common parts on the truck.
Upfront pricing
No surprise additions on the invoice. The price you approve is the price you pay.
Furnace Repair Service Area
We provide furnace repair throughout Riverside County and San Bernardino County.
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