Home › Service area › Lake Forest › Heater & Furnace Repair
Serving Santa Clarita + 20 miles and Orange County from Tustin to San Clemente
Heater & Furnace Repair in Lake Forest, CA
In Lake Forest the furnace is usually in the attic, a hall closet or the garage, depending on the age of the home. On the older El Toro era tracts we pay close attention to venting and the heat exchanger. On 1990s Foothill Ranch and Portola Hills homes, igniters, inducer motors and control boards are the parts we replace most. Every heater repair includes a carbon monoxide test.
Furnace repair in Lake Forest
Lake Forest is a little further from the ocean than Irvine, and the neighborhoods near the foothills get colder nights than the coast. Furnaces here run more than in the beach towns, but still sit idle most of the year. Our furnace repair calls in Lake Forest split between the older tracts around the lakes and the 1990s homes up toward Foothill Ranch and Portola Hills.
Older Lake Forest homes
In the original neighborhoods the furnace is usually in a hall closet or the garage, and the ductwork is often as old as the house. A furnace that runs fine but leaves rooms cold may be fighting leaking or crushed ducts. We check the ducts along with the furnace when that is the symptom. See ductwork.
Foothill Ranch and Portola Hills
Homes from the 1990s often have attic furnaces that are original or on their first replacement. Common repairs at that age:
- Cracked igniters and dirty flame sensors.
- Noisy or failed inducer motors.
- Pressure switches and the small rubber hoses that feed them.
- Control boards on older furnaces.
Santa Ana winds also push fine dust into attics and filters here, so a clogged filter causing overheating is a frequent cause of no heat in fall.
Carbon monoxide safety
A furnace with a cracked heat exchanger or a blocked flue can run and heat the house while still leaking exhaust, so you cannot judge safety by whether the heat works. Every heater repair includes a carbon monoxide test and a flue check. If your CO alarm goes off, leave the house, call 911, then SoCalGas. Do not go back in until it is cleared.
Replacement
When a furnace is past repair, we size the new one for your home and check that it matches your AC coil, or price a heat pump if you want one system for heating and cooling. Replacements are permitted with the City of Lake Forest, which also covers Foothill Ranch and Portola Hills. You get a written price for each option. More on furnace installation.
Before you call
- Thermostat on Heat and above room temperature.
- Filter checked. After a windy week, check it even if it is new.
- Breaker and service switch on, furnace door closed.
- One reset at most if the furnace has locked out.
Call (323) 240-2373, 24/7, or book online and use code WEB25 for $25 off (coupons). See also our Lake Forest AC and heating page and Foothill Ranch.
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 Lake Forest: 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
My furnace clicks but never lights. What is wrong?+
Common causes are a failed igniter, a dirty flame sensor or a pressure switch problem. It needs to be tested safely, so please do not keep restarting it.
Do you serve Foothill Ranch and Portola Hills?+
Yes, all of Lake Forest, same day in most cases.
Why does my furnace stop working after Santa Ana winds?+
Fine dust clogs the filter faster than usual, the furnace overheats and the limit switch shuts the burners off. Replace the filter, and call if the heat does not come back.
My furnace is noisy when it starts, then quiet. Is that a problem?+
A whirring or grinding at startup is often the inducer motor wearing out. It is worth having it checked before it stops the furnace completely.
Do you repair furnaces in Lake Forest townhomes?+
Yes, including closet and attic furnaces in attached homes.
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
