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Westminster, CO

HVAC Service you can count on

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4.7

(1349 reviews)

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Heating & Air Conditioning

Services By One Hour

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HVAC Service Near Me 
—Available 24 Hours

One Hour Heating & Air Conditioning understands that heating and air conditioning issues create uncomfortable living situations — especially when temperatures outside are extreme. Luckily, our customer specialists are on standby 24/7 to fix your urgent issues. Whether you need HVAC installation, repair, or maintenance, our HVAC service experts are ready to help.

Emergency HVAC Services

We offer 24-hour emergency HVAC services – even on weekends and holidays – to ensure you have professional support when you need it most. Arriving with service trucks stocked full of specialty parts and tools, we have the equipment needed to fix many HVAC problems on the spot. In the case that additional parts are needed, rest assured – we will do everything in our power to handle your HVAC emergency quickly and efficiently.

Air Conditioning

Whether you need an emergency replacement, regular maintenance, or installation services, our qualified technicians have the experience and technological resources to get any HVAC job done correctly. We utilize the latest tools, products, and techniques to stay up to date with cutting-edge changes in the industry.

AC Repair

At One Hour Heating & Air Conditioning, our HVAC technicians service all major AC brands and models. Our AC repair team can fix:

  • Poorly insulated ductwork
  • Power supply breakdowns
  • Defective fans or thermostats
  • Refrigerant leaks
  • Frozen condenser coils
  • Blocked condensation drainage
  • AC short-cycling (turning on and off too quickly)

After inspection, we will provide a detailed estimate.

AC Installation & Replacement

There are many telltale signs that an HVAC unit might need to be replaced. If an HVAC unit is over 10-years old, smells terrible, blows warm air, or produces subpar results as energy bills keep rising, give us a call!

AC Maintenance

For optimal performance, AC units require many parts to work seamlessly together. A single problem can cause a ripple effect of issues. This is why spotting minor malfunctions is critical. With regular maintenance visits, we can ensure your HVAC system is operating smoothly and efficiently. Consider joining our Club Membership for additional customer benefits.

 

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Our Happy Customers

Reviews of Denver

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Deb Ratliff

3 weeks ago

“Shout-Out to Alex Santana – One Hour Heating and Air Conditioning I want to give a big thank you to Alex Santana from One Hour Heating and Air Conditioning. He came out to our home on 07/01/2025 to check our air conditioning and did a fantastic job. Alex took the time to clearly explain what the issue might be and walked us through the possible solutions. His attention to detail was outstanding, and we truly appreciate his professionalism, insight, and willingness to help. Thank you, Alex, for your excellent service!”

markus k

a week ago

“David Brown performed our annual A/C system maintenance and did a fantastic job. He was very thorough, respectful of the property and answered any questions I had. He went above and beyond, and I asked him for his business card so I can request him for future service visits through One Hour Heating and Air Conditioning.”

Justin Felix

a week ago

“Faster appointments than the other guys, even the original installer. OneHour technician diagnosed the issue, and rather than just making a potentially expensive repair, he recommended working with the original installer under warranty to save me money. I appreciate OneHour’s prompt appointments and honesty. The other company is scheduling 4 days out, but at least we’ll have a second opinion and potential savings.”

Nicky

a month ago

“Josh was on time for the appointment, did a thorough job, and fixed the issue with my AC unit! The two hour appointment window was great and their membership program makes getting service easy and fast! Also they have 24/7 appointment scheduling by phone. All very convenient!”

Rachel Opel

2 weeks ago

“Great help! Will be using again. Josh came out with a second opinion due to the previous tech requesting assistance. Our options were clear and he was extremely helpful with setting up the next steps.”