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Serving Santa Clarita + 20 miles and Orange County from Tustin to San Clemente
Heater & Furnace Repair in Irvine, CA
Irvine homes run their heat only a few months a year, but cool coastal nights still make a working furnace important, especially for families with young kids or older parents. In condos the furnace is often in a small closet or the attic over the garage, which makes filter changes easy to forget. Clogged filters and dirty flame sensors cause a lot of the no-heat calls we see in Irvine, and we check for carbon monoxide on every repair.
Gas furnace repair in Irvine
Most Irvine homes heat with a gas furnace paired with a central AC, though more of the newest homes and many recent replacements use heat pumps. Either way, heat runs only part of the year here, so most of our furnace repair calls are about parts that dried out, got dusty or simply aged while the furnace sat. We repair furnaces in the older villages like Woodbridge and Northwood, in condos and townhomes, and in newer neighborhoods across the city.
What goes wrong with Irvine furnaces
- Ignition faults. Hot surface igniters crack, and flame sensors get coated. The furnace tries a few times and locks out.
- Condensate problems on high efficiency furnaces. A clogged drain or trap can stop a 90 percent furnace from running, especially in attics.
- Control boards and inducer motors on furnaces that are 15 years or older.
- Smart thermostats wired wrong. A new thermostat on an older furnace sometimes needs a common wire or a setup change before it runs the heat correctly. See smart thermostats.
Gas furnace or heat pump?
If your furnace needs a big repair, it is fair to ask whether to replace it with another gas furnace or move to a heat pump. A gas furnace is a direct swap in most homes. A heat pump can replace both the furnace and the AC, but it may need electrical work and a matched indoor unit. In a mild climate like Irvine, both work well. We look at your home, your ducts and your panel, and give you a written price for each so you can decide. Replacements are permitted with the City of Irvine. More on furnace installation.
Carbon monoxide
Many Irvine condos have the furnace in a closet next to a bedroom or over an attached garage, so a working CO alarm matters. We test for carbon monoxide on every gas furnace repair. If your alarm goes off, leave the home, call 911, then SoCalGas. Do not go back inside until they say it is safe.
Before you call
- Thermostat on Heat and set a few degrees above room temperature. Check that a schedule or app setting is not overriding it.
- Replace the filter if it is dirty. In condos it is often in a ceiling return grille.
- Make sure the furnace door is on and closed.
- Check the breaker and the service switch.
Call (323) 240-2373, 24/7, or book online and use code WEB25 for $25 off (coupons). More on our Irvine AC and heating page.
What we offer
What is included
Ignition and flame sensor service
Inducer and blower motor repair
Pressure switch and control board
Gas valve and burner service
Heat exchanger inspection
Carbon monoxide test
Stages
Heater & Furnace Repair in Irvine: how it works
Simple, clear and on your schedule.
Submit a requestStage 1
01Request
You call or send a request. We confirm the problem and set a time, usually the same day.

Stage 2
02On-site visit
The technician tests the system: electrical, refrigerant or gas, airflow and drain.

Stage 3
03Written estimate
You get a written diagnosis and price before any work starts.

Stage 4
04Service
We repair with quality parts and keep the work area clean.

Stage 5
05Support
We test performance, explain what we found and how to avoid it next time.

Tip
Common problems and what they mean
Starts, then shuts off
Usually a dirty flame sensor. Quick fix.
Blower runs, no heat
Ignition problem: igniter, pressure switch or gas valve.
Burning smell
A little dust smell on the first cold day is normal. A strong or lasting smell is not.
Error light blinking
Note the pattern through the panel window. It helps us bring the right part.
Heater & Furnace Repair nearby
Reviews
Reviews from our customers
WY&G is very reliable and professional. They were assigned by the warranty company and did excellent work. Same day fixed the problem and finished the work. Strongly recommends WY&G Inc for all AC repair or regular maintenance work for HVAC.
Canyon Country, CAWe’re very happy with WY&G services. We had our old heater & AC replaced in our unit. The tech guys are professional and provide high quality services. Definitely recommend if you want to upgrade your system. The crew worked smoothly and cleaned up after work.
Studio City, CAI don’t have enough good things to say about WY&G. They are professional, fast, and do quality work. I had a lengthy issue that required working with a home warranty and manufacturer’s warranty that WY&G was able to help me resolve. They are great with communicating and always called me back promptly. I will definitely be using them again.
Sherman Oaks, CAFAQ
Frequently asked questions
Why does my Irvine furnace smell like burning dust when it first turns on?+
A light dusty smell for a few minutes after months off is normal. A strong burning smell, an electrical smell or one that does not go away is not. Turn the system off and call.
Do you repair heat pumps in Irvine?+
Yes. Many newer Irvine homes and condos heat with a heat pump instead of a gas furnace, and we service both.
My high efficiency furnace has water around it. What is wrong?+
High efficiency furnaces make water as they run. A leak usually means a clogged condensate trap or drain line, or a cracked fitting. Turn it off and call so it does not damage the floor or ceiling.
Why does my furnace work but my new smart thermostat says heat is not running?+
Often a wiring or setup issue, like a missing common wire or the wrong equipment type selected. We check the wiring and settings.
Can you replace just my furnace and keep my AC?+
Often yes, if the AC is in good shape and the new furnace matches the coil. We check compatibility before recommending it.
How fast can you come?+
Same day in most cases, 24/7 for emergencies.
Do you check for carbon monoxide?+
Yes, on every heater call.
Licensed, insured C-20 HVAC contractor
All major brands
Our own team, no middlemen
Written price before work begins
Help with home warranty claims
Support after every repair and install
Consultation
Get a free quote and consultation
Send a quick request and we will call you back fast.
- A clear written estimate
- Help choosing the right system
- Straight answers to your questions

