What does the One Hour mean in your company name?

The 'One Hour' in our company name indicates our guarantee to be at your home in the predetermined window quoted when you set your appointment. If we do not show up within that window, your service call fee is waived. 1. Express Appointment: This is an appointment that is scheduled during a specified one-hour time slot. You are promised that a technician will arrive at your home within this one-hour time window. You will also receive a call when the technician is en route to your home. 2. Reserved Appointment: This is an appointment that is scheduled during a specified, two-hour time slot. You are promised that a technician will arrive at your home within this two-hour time window. You will also receive a call when the technician is en route to your home. 3. Standard Appointment: This is an appointment that is scheduled during a specified four-hour time slot. You are promised that a technician will arrive at your home within this four-hour time window. You will also receive a call when the technician is en route to your home. 4. Stand-By Appointment: This appointment is for overflow situations. This appointment will not have a specified time. You will receive a call when the technician is en route to your home. 5. Emergency Appointment: This appointment is for an unspecified time after normal business hours Monday – Saturday and all day on Sundays/Holidays. Calls are dispatched in the same order they are received. You will also receive a call when the technician is en route to your home.

Do you service emergencies after-hours?

Yes, we offer emergency services 24-hours a day, year-round.

How much will my service cost?

The size and complexity of your HVAC issue will determine the cost. Because our trained, licensed HVAC technicians must diagnose the issue before we are able to quote you an accurate cost, we require an appointment to be set to complete a diagnostic on your system. Once the diagnostic is complete, your One Hour® technician will walk you through all costs using our Straightforward Pricing® Guide so there are never any surprise fees.

Westminster, CO

HVAC Service you can count on

4.7

(1490 reviews)

Heating & Air Conditioning

Services By One Hour

View More Services

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.

Give our team a call today or contact us online to request your same-day HVAC service.

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.

HVAC Services

Common Questions

View More FAQs

View All FAQs

Our Happy Customers

Reviews of Denver

4.7

(1490 reviews)

Jeannie Weaver

3 weeks ago

“Joseph C was our technician and he did an excellent, efficient and expedient job! He explained first to us what he would be doing and then when we had questions while he was working he answered those so that when he was finished we knew he completed everything satisfactorily. We even teased him about his pink booties. I realized he was representing Breast Cancer Aware month and was happy that the company supports that! Great job, Joseph and one Hour! Thanks so much!”

Mike M

a week ago

“My 85-year old in-laws’ furnace broke down on a cold fall night. Chris and Mike K. made a special trip to get a new motherboard, then stayed until 6:00 PM on a Friday night to ensure that their HVAC system was up and running (it was under warranty). Most importantly, they answered their questions with patience and kindness. They were personable and knowledgeable when explaining their work to them. I feel like my in-laws could confidently call Chris and Mike K for any future maintenance and repairs.”

nadia swafford

a month ago

“I am pleasantly surprised… I wasn’t expecting much, due to, undesirable experiences with other companies. Cameron and Joseph are amazing! They are soo knowledgeable, thorough, professional, and friendly. They diagnosed and fixed my non working heater and provided helpful maintenance service information. I highly recommend this company for exceptional services. Again, thank you.”

Amber M.

2 months ago

“I had an excellent experience with One Hour Heating & Air Conditioning of Denver thanks to Cameron! He was prompt, professional, and had my AC running perfectly in less than an hour—a huge relief since I am hosting a party tomorrow. He explained the issue clearly, fixed it efficiently, and never tried to upsell unnecessary services. Their prices are fair, and it’s clear they hire skilled professionals who take pride in their work. From scheduling to completion, the process was smooth and stress-free. I highly recommend them!”

DILAB, LLC

2 months ago

“We recently had our AC and furnace installed by One Hour Heating & Air, and the entire experience was outstanding from start to finish. First, I want to give an honorable mention to Cameron, the initial repair tech. He was professional, honest, and really set the tone for the great service that followed. A huge shoutout also goes to Dakota, Ivan, and Tyler – the installation team. They were all professional, knowledgeable, and just overall amazing. They arrived on time, worked efficiently, and took the time to explain everything in detail. Their attention to detail and commitment to doing the job right gave us complete peace of mind. Not only was the installation flawless, but every interaction we had with this company showed their dedication to top-quality service. It’s rare to find a team that combines skill, professionalism, and genuine kindness the way they do. I highly recommend One Hour Heating & Air – and if you’re fortunate enough to work with Cameron, Dakota, Ivan, and Tyler, you’re in excellent hands!”

Servicing your entire home

Part of the Authority Brands Family

Authority Brands is the leading provider of in-home services, building brands that support the success of franchisees as well as better the lives of the homeowners we serve and the people we employ.