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One Hour Heating & Air Conditioning® of Raleigh-Durham

One Hour Heating & Air Conditioning technicians smiling in front of a service van.

Book Online with Us 24/7!

We Believe…..

We Believe in doing what’s right for you, no matter the cost to us.
We Believe in arriving on-time, every time, or you don’t pay a dime.
We Believe that happy employees make happy customers.
We Believe you should always get a real person when you call.
We Believe listening is the way to serve you best.
We Believe our Top Gun Club is a wonderland of savings, comfort and family love.
We Believe military should receive those benefits for free.
We Believe in clean uniforms that look good all day.
We Believe in leaving your home cleaner than we found it.
We Believe that includes the air your family breathes.
We Believe your AC coils can’t get fully clean without actual cleaner.
We Believe In checking every wire….just to be sure.
We Believe in tightening every screw, even the ones we didn’t leave loose.
We Believe that YOUR choice of system IS THE BEST choice for your castle.
We Believe in Optimizing your AC & Furnace performance every year.
We Believe your ducts should never sweat.
We Believe you’re comfiest when they’re properly sized, sealed and insulated.
We Believe in never recommending something you don’t need.

Here For You

When You Need Us Most!

Yellow One Hour Heating & Air Conditioning service van with company branding and slogan.

  • '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.

  • StraightForward Pricing® Guide

    Before we start any work, we discuss your available options so you know exactly what you are getting and how much it will cost. No hidden fees!

  • Always On Time…Or You Don’t Pay A Dime!®

    We understand your time is valuable, so we promise to arrive at your home within the predetermined time window that you select, or your service call is free.

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We Have a Reputation

For Being Punctual, Friendly and Knowledgable

4.8

(856 reviews)

jess shell

05-08-2025

“Tyler arrived on time, was nice, and had clear communication about our HVAC system. This was a regular maintenance call, and we were very satisfied with his work!”

John Manickam

05-06-2025

“Julio Aureloes Of Green Horizon One Hour was the installation project leader for Amana heat pump. He was very professional, courteous, punctual and diligent in executing his responsibilities individually and that of his team members. The project was executed on time and successfully. Julio is a proud representative of Green Horizon.”

Patricia Batko

04-29-2025

“Would recommend Tyler for residential HVAC needs. He was thorough and explained my situation so I could understand. Good fit for this work!”

Heidi Hackett

04-24-2025

“Prompt, polite, efficient and did a great job explaining everything.”

Kellie Yarnell

04-21-2025

“Quick friendly service.”

BossLady T

04-21-2025

“Quick, prompt, explained everything in full detail.”

Raeanna s

04-21-2025

“Very thorough”

Clark Smith

04-21-2025

“Great guy very respectful did a great job”

Victoria Roy

04-17-2025

“Frank was respectful, thorough, and kind. He added some extra sealant that was needed and made sure that everything is ready for inspection. He wore booties over his shoes, as not to track mud in the house. Frank also offered to replace the grill on the return since ours was from 1983 and caused whistling noises. Happy with our interaction with Frank.”

Janelle Cordova

04-11-2025

“Polite & efficient. Good job!”