Comfort you can trust, all year round.
Fast, honest heating, cooling and air-quality service for homes, businesses and mobile homes across Orange County & LA County.
Comfort done right, the first time.
Two decades of local experience and a team that treats your home like our own.
Licensed & Insured
Fully licensed (Lic. #1072565) and insured for your peace of mind.
Family Owned
A local family business — you talk to owners, not call centers.
20+ Years Experience
Two decades servicing every major HVAC brand and system.
Free Estimates
Upfront, honest pricing with no surprises and no pressure.
Emergency Service
Broken AC or heater? We offer fast, same-day emergency help.
Mobile Home Specialists
Specialized experience with mobile-home heating and cooling systems.
Complete HVAC services
Residential, commercial and mobile-home heating, cooling and air quality — all under one trusted roof.
Before & After
Real installations and repairs across Orange County.
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Trusted by your neighbors
Hundreds of 5-star reviews across Google and Facebook.
“Our AC died in a heat wave and HG came out the same day. Honest pricing, super clean work, and they explained everything. Highly recommend!”
“Replaced our old furnace and the whole crew was professional and on time. The new system is quiet and our bills dropped. Family-owned and it shows.”
“I've used HG for two homes now. Fair, fast, and they never try to upsell you. The free estimate was exactly what I paid.”
“They service the AC at our mobile home park and know these systems inside out. Reliable every single time.”
“Duct cleaning and a new air purifier made a huge difference for my family's allergies. Friendly, tidy, professional.”
“Emergency heater repair on a cold night — they answered, showed up, and fixed it. Lifesavers. 20+ years of experience really shows.”
Proudly serving your city
Based in Santa Ana, we cover Orange County and Los Angeles County. Don't see your city? Just call.
And many more nearby cities →
Ready for reliable comfort?
Request your free estimate today. Most requests get a same-day callback.