Reliable Heating Repair in Fullerton, CA

One Hour Heating & Air Conditioning Is Here To Restore Warmth And Comfort To Your Home With Fast, Expert Repairs.

A malfunctioning heating system can disrupt your comfort, especially during the colder months in Fullerton. At One Hour Heating & Air Conditioning, we prioritize fast, effective repairs to get your heater working again as soon as possible.

Why Choose Us for Your Heating Repairs?

Comprehensive Diagnostics – Our technicians pinpoint issues quickly to get your system back up and running.
Expert Repairs on All Systems – We service furnaces, heat pumps, boilers, and packaged units from all major brands.
24/7 Emergency Services – We’re available day or night to ensure you’re never left in the cold.
StraightForward Pricing® – Know the cost upfront with no hidden fees or surprises.
Highly Skilled & Certified Technicians – Our team is trained to handle even the most complex heating problems.
Always On Time… Or You Don’t Pay A Dime!® – We value your time and guarantee prompt service.

Whether you’re experiencing uneven heating, strange noises, frequent cycling, or complete system failure, we have the expertise to fix it right the first time.

Contact One Hour Heating & Air Conditioning Today For Professional Heating Repair In Fullerton!

Request Service

We guarantee our materials, labor, and craftsmanship for up to two years from the date of your service.

We Can Assist You With:

Air Conditioning Repair & Maintenance

Air Conditioning Installation & Replacement

Heater Installation & Replacement

Heater Repair & Maintenance

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Our Customer Reviews

"The team showed such genuine care and respect. They were trustworthy, and it was clear they knew their craft inside and out. They explained everything thoroughly, and I never felt pressured into any decisions. The work they did was excellent, and my system is running better than ever! I am so happy with the service I received and grateful to have found a company I can rely on for the future. I now know that when I need HVAC help again, I can call them with confidence, knowing I'll be treated with honesty and professionalism. Highly recommend!"
Catherine K

"Can’t say enough. I recently hired One Hour Heating and Air Conditioning to perform regular maintenance on my mother-in-law's furnace, and the experience was outstanding. The technician was on time and took the time to ensure everything was running efficiently. They provided helpful recommendations without any pressure and treated her home with great care. I’ll definitely continue using them for both maintenance and repairs."
Reed M

"Honest, punctual,and trustworthy. I had One Hour Heating & Air Conditioning come to my home to perform the annual maintenance on my HVAC for this upcoming summer season. They told me my system was working appropriately and gave me the necessary recommendations to ensure the system stays in tip-top shape. The techs were very knowledgeable and answered all my questions in detail. I highly recommend them for all your HVAC services."
Angelo C

"The team showed such genuine care and respect. They were trustworthy, and it was clear they knew their craft inside and out. They explained everything thoroughly, and I never felt pressured into any decisions. The work they did was excellent, and my system is running better than ever! I am so happy with the service I received and grateful to have found a company I can rely on for the future. I now know that when I need HVAC help again, I can call them with confidence, knowing I'll be treated with honesty and professionalism. Highly recommend!"
Catherine K

"Can’t say enough. I recently hired One Hour Heating and Air Conditioning to perform regular maintenance on my mother-in-law's furnace, and the experience was outstanding. The technician was on time and took the time to ensure everything was running efficiently. They provided helpful recommendations without any pressure and treated her home with great care. I’ll definitely continue using them for both maintenance and repairs."
Reed M

"Honest, punctual,and trustworthy. I had One Hour Heating & Air Conditioning come to my home to perform the annual maintenance on my HVAC for this upcoming summer season. They told me my system was working appropriately and gave me the necessary recommendations to ensure the system stays in tip-top shape. The techs were very knowledgeable and answered all my questions in detail. I highly recommend them for all your HVAC services."
Angelo C

"The team showed such genuine care and respect. They were trustworthy, and it was clear they knew their craft inside and out. They explained everything thoroughly, and I never felt pressured into any decisions. The work they did was excellent, and my system is running better than ever! I am so happy with the service I received and grateful to have found a company I can rely on for the future. I now know that when I need HVAC help again, I can call them with confidence, knowing I'll be treated with honesty and professionalism. Highly recommend!"
Catherine K

Our main priority is to provide every one of our customers with honest work and an excellent experience. We adhere to a strict code of ethics, always offer a high level of service, treat customers with honesty and respect, and offer fair prices upfront.

Our experienced and skilled technicians design, install, service, and repair HVAC systems and parts in strict accordance with the highest industry standards across the United States.

Reliable Heating Repair in Fullerton, CA

Why Choose Us for Your Heating Repairs?

We Can Assist You With:

Our Customer Reviews

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Always On Time...Or You Don't Pay A Dime!