Serving Santa Clarita + 20 miles and Orange County from Tustin to San Clemente
Cooling
AC, heat pump, ductless mini-split and rooftop unit repair, installation and maintenance.
Cooling
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AC Repair
Same-day diagnostics for units that will not cool, will not start, leak or keep shutting off.
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AC Installation & Replacement
Right-sized, permitted, efficient systems installed by our own crew, not subcontractors.
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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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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.
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Refrigerant Leak Detection & Repair
AC low on refrigerant? We find the leak, fix it and charge the system correctly.
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Evaporator & Condenser Coil Replacement
Leaking or corroded coils replaced, cleaned or repaired, with a proper charge afterwards.
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AC Tune-Up
Spring check that catches weak capacitors, dirty coils and drain clogs before summer.
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Zoning Systems
Separate temperatures for upstairs and downstairs with dampers and multiple thermostats.
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Ductwork Installation & Repair
Crushed, leaky or undersized ducts repaired, sealed or replaced.
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Smart Thermostats
Thermostat repair, replacement and smart thermostat setup that actually works with your system.
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When the AC quits in a Santa Clarita heat wave, you need someone who shows up the same day and fixes it right. WY&G repairs and installs central air, heat pumps, ductless mini-splits and rooftop package units of every major brand. Every job starts with a full diagnostic and a written price, and most repairs are finished on the first visit because common parts ride on the truck.
Troubleshooting
Cooling: common problems, explained
Troubleshooting
AC Blowing Warm Air? 7 Causes and What to Do
An AC that blows warm air is most often caused by a wrong thermostat setting, a clogged air filter, a tripped breaker for the outdoor unit, or a dirty outdoor coil. If those check out, the likely cause is a failed capacitor or contactor, or a refrigerant leak, and those need a licensed technician.
Read the guideTroubleshooting
AC Frozen? Ice on the Lines or Coil: Causes and Fixes
An AC freezes when the indoor coil gets too cold, usually from low airflow (dirty filter, closed vents, weak blower) or low refrigerant from a leak. Turn cooling off and run only the fan to thaw it, replace the filter, and if it freezes again, call a technician to check airflow and refrigerant.
Read the guideTroubleshooting
AC Leaking Water Inside the House? Causes and Fixes
An AC leaking water indoors is usually caused by a clogged condensate drain line, a cracked or rusted drain pan, or a frozen coil that is melting. Turn the system off, check the drain line and float switch, and call a technician if the pan is damaged or the leak continues.
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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.
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AC Outdoor Unit Humming but Fan Not Spinning? Causes
When the outdoor unit hums but the fan does not spin, the most likely cause is a failed run capacitor, followed by a seized fan motor or a stuck contactor. Turn the AC off right away to protect the compressor, clear any debris, and call a technician, because capacitors hold a dangerous charge even with the power off.
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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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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 Making Noise? Buzzing, Banging or Squealing Explained
Most AC noises point to a specific part. Buzzing often means an electrical problem like a failing capacitor or contactor, banging or clanking means something is loose or broken inside, and squealing usually comes from a motor or blower. Turn the system off for loud banging, grinding, or buzzing with no fan movement, and call a technician.
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 repair all AC brands?+
Yes: Carrier, Trane, Lennox, Goodman, Rheem, Daikin, Mitsubishi, York, Bryant, American Standard and more.
How fast can you come out?+
Same day in most cases across Santa Clarita + 20 miles and Orange County from Tustin to San Clemente.
Should I repair or replace my AC?+
Under about 12 years old with a small failure, repair usually wins. We give you both prices in writing.
Do you install new systems?+
Yes, with a load calculation, duct check and permit on every installation.
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

