Serving Santa Clarita + 20 miles and Orange County from Tustin to San Clemente
Heating
Gas furnaces, wall and floor heaters, heat pumps and gas packs: repair, replacement and safety checks.
Heating
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Furnace Repair
No heat, short cycling, strange smells or noises. Safe, same-day gas furnace repair.
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Furnace Installation
New gas furnaces sized for your home, permitted and installed by our own crew.
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Wall & Floor Heaters
Repair and replacement of wall furnaces, floor furnaces and direct vent heaters.
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Ignition & Flame Sensor
Furnace lights then shuts off? Flame sensor cleaning and igniter replacement.
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Furnace Tune-Up & Safety Check
Fall furnace service with flame sensor cleaning, igniter test and carbon monoxide check.
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Ductless Mini-Split Installation
Quiet, efficient heating and cooling for rooms without ducts: additions, garages, bedrooms.
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Heat Pump Installation
One system for cooling and heating. Repair, replacement and conversion from gas furnaces.
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Rooftop Package Unit Repair
Repair and replacement of rooftop and ground package units and gas packs.
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Zoning Systems
Separate temperatures for upstairs and downstairs with dampers and multiple thermostats.
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Smart Thermostats
Thermostat repair, replacement and smart thermostat setup that actually works with your system.
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Ductless Mini-Split Repair
Blinking lights, error codes, weak cooling or heating, water dripping from the indoor head.
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Heat Pump Repair
Cold air in heat mode, icing up, running nonstop, strange noises. All brands.
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Rooftop Package Unit Installation
New rooftop and ground package units and gas packs, sized, permitted and installed.
Get detailsHeating
Santa Clarita winter nights drop into the 30s, and the first cold morning is when furnaces that sat all summer refuse to light. WY&G repairs and replaces gas furnaces, wall and floor heaters, heat pumps and gas packs, and checks for carbon monoxide on every heating call.
Troubleshooting
Heating: common problems, explained
Troubleshooting
AC Not Turning On? 6 Causes and Easy Checks
When an AC will not turn on, start with the thermostat (mode, setpoint, batteries), then the breakers, the outdoor disconnect, and the condensate float switch. If power and settings are fine and nothing starts, the problem is likely a failed control board, transformer, capacitor, or contactor, which a technician should test.
Read the guideTroubleshooting
AC Runs Constantly but House Stays Hot? 7 Reasons
An AC that runs all day without reaching the setpoint is usually short on airflow (dirty filter or coil), losing cold air through leaky ducts, low on refrigerant from a leak, or simply too small for the heat load. On very hot days some long run time is normal, but if it never catches up in mild weather, have it checked.
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Furnace Blowing Cold Air? 7 Causes and What to Check
A furnace that blows cold air is often just set to fan On instead of Auto, or the burners shut off after a few seconds because of a dirty flame sensor, a clogged filter, or an ignition problem. Check the thermostat and filter first. If the burners do not light or keep shutting off, call a technician.
Read the guideTroubleshooting
Furnace Turns On Then Shuts Off? Short Cycling Causes
A furnace that turns on and shuts off quickly is short cycling, usually because of a clogged filter causing overheating, a dirty flame sensor, a blocked vent or intake, or a thermostat problem. Replace the filter and check the thermostat first. If it keeps cycling, a technician should check the safety switches and venting.
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Heat Pump Blowing Cold Air in Heat Mode? Causes
A heat pump that blows cool air in heat mode may simply be in defrost mode, which is normal and lasts a few minutes. If it blows cold air for a long time, check the thermostat mode and filter, then call a technician for possible reversing valve, defrost control, or refrigerant leak problems.
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Mini Split Blinking Light or Not Cooling? What It Means
A blinking light on a mini split is usually an error code, a filter reminder, or a sign the unit is in defrost or startup. Count the blinks, check the remote mode and the filters, and power cycle the unit at the breaker once. If the light keeps blinking or it still will not cool, a technician should read the code and test the system.
Read the guideTroubleshooting
AC Short Cycling? Turns On and Off Every Few Minutes
An AC that turns on and off every few minutes is short cycling. Common causes are a thermostat in a bad spot, a clogged filter, a frozen coil, a tripped float switch, an oversized system, or an electrical or refrigerant problem. Check the thermostat and filter first. If it keeps cycling, have a technician test it, because short cycling wears out the compressor.
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Thermostat Blank or Not Responding? Causes and Fixes
A blank thermostat usually has dead batteries, lost power from a tripped breaker or switch, or was shut off by a tripped condensate float switch. It can also be a blown fuse on the control board or a failed transformer. Replace the batteries and check breakers and the float switch first. If it is still blank, a technician should test the low voltage power.
Read the guideTroubleshooting
High Electric Bill in Summer? Why Your AC Runs Too Much
A high summer electric bill usually means the AC is running longer than it should. Common causes are a dirty filter or coils, leaky ducts in a hot attic, a low setpoint, poor attic insulation, a refrigerant leak, or an old, inefficient system. Start with the filter, thermostat schedule, and outdoor coil, and have the system checked if run time is still high.
Read the guideStages
A step-by-step process that saves you time and stress
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.

FAQ
Frequently asked questions
Do you check for carbon monoxide?+
Yes, on every heater repair.
Do you repair old wall and floor heaters?+
Yes, with a full venting and gas safety check.
Can I replace my furnace with a heat pump?+
In most homes, yes. We show you both options.
What if I smell gas?+
Leave the house and call SoCalGas or 911 first. Call us once it is safe.
Brands
We repair and install every major brand




Also York, Amana, Ruud, Payne, Day & Night, Samsung and more.
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, CALicensed, 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

