Your Comfort Is Just A Call Away

Durham Heating & Cooling Experts

Don't Let "Small" Problems Turn
Into Big Ones. One Hour Can Help.

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Durham HVAC Services

Air Conditioning and Heating That Makes Your Home Better

After hangin’ up my Air Force pilot wings, I started what would become Green Horizon One Hour in 2007. Our goal is to make your home better with the comfort provided by quality HVAC services. It’s probably why we’re the #1 installer of home efficiency improvements in the Raleigh – Durham – Chapel Hill area. Plus, those geothermal and super high efficiency systems are freakin’ cool. And everything you choose is covered by our Whole House Promise.

About Us

Raleigh-Durham HVAC Services with a Whole House Promise

We Don't Sell You Things You Don't Need

Our Whole House Promise means we won’t recommend things you don’t need. If anything we recommend and install doesn’t improve your home’s efficiency, we’ll replace it or give you 100% of your money back within one year. This way, you can be certain that our Raleigh-Durham HVAC repairs, installation, and maintenance are services that you can trust for years to come.

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

‘Round the Clock Availability
No matter the hour, you can trust One Hour to be there
to help you when you get hit with the unexpected.
100% Satisfaction Guarantee
We guarantee our materials, labor, and craftsmanship
for up to two years from the date of your service.
We Love What We Do
Our trained Comfort Specialists are friendly,
knowledgeable, and genuinely love helping people.

Learn More About Us

We Have A Reputation For Being Punctual, Friendly, and Knowledgeable

“I want to thank Steve, Shawn, Matt, and Justin for a superb job replacing my air conditioner and heating unit. They were very thorough and did not mind answering my questions about the new units. I ...”
“In the pouring rain Austin came and was outside thawing out 8" of ice that had built up... Problem solved and he only charged me $99 total!! I trust One Hour AC/Heating.. they're like no other.”
- Susana C.
“Jonathan W. was personable, friendly, professional, thorough, honest in his evaluation and worked hard! You have a jewel in this young man.....he is a keeper!”
“Hope is the epitome of excellence in customer service and professionalism. She explained the process of repairing my A/C every step of the way and gave me what the estimate before each action. I ...”
- Jonathan P.
“I want to thank One Hour for resolving my A/C unit problem. Everyone that came out was amazing. My husband and I are so impressed with their commitment to make sure that we were happy and pleased with ...”
- Evelyn
“I want to thank you for your excellent service. Abdiel answered all my questions and was very professional. He gave me peace of mind and complete comfort. I know I am in good hands with your company.”