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(R) technician will walk you through all costs using our Straightforward Pricing(R) Guide so there are never any surprise fees.

How often should I service my HVAC system?

It's ideal to service your cooling system each spring and your heating system each fall to ensure you find small issues before they become big problems.

How often do I need to change my HVAC filter?

Your filter should be changed every one to three months, depending on conditions in your home and your region's climate.

Do you offer purchase financing?

We work built relationships with several lenders to ensure our customers are able to restore comfort in their homes. Ask your technician about your financing options.

What are the advantages of a smart Thermostat?

Smart thermostats learn a household's patterns and adjust heating and cooling according to when a home is occupied, give homeowners the ability to control the thermostat remotely, and enable homeowners to reduce their energy use, saving you money.

HVAC means Heating, Ventilation, and Air Conditioning. HVAC systems refer to air conditioners, furnaces, and any unit that cools indoor spaces during the summer and warm them in the winter. In general, an HVAC system takes in air, heats or cools that air, and blows it into a room or any indoor space. While many homes have separate air conditioning and heating units, others have a heat pump that cools and heats the house. Not only do HVAC systems maintain desired temperatures, but they also improve indoor air quality and regulate humidity levels. But most importantly, these units provide comfort all year round.

What is a SEER Rating?

The SEER (seasonal energy efficiency ratio) is a measure of the efficiency of your heating and cooling system.The higher the SEER rating, the more efficiently a unit operates. The SEER rating of any given unit can range anywhere from 13 to 21.

Bringing Comfort Home

With Expert AC Services

One Hour Heating & Air Conditioning® in Northern Colorado

4.8

(2477 reviews)

Heating & Air Conditioning

Services By One Hour

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Two One Hour Heating & Air Conditioning technicians standing confidently in front of a service van.

HVAC Repair, Installation & Maintenance

Heating, AC & Furnace Repairs in the Northern Colorado Area

When homeowners want a reliable heating or air conditioning system that they don’t have to think about, they call One Hour Heating & Air Conditioning. We are the premier HVAC service provider in the tri-city region for a simple reason: we actually care about your comfort.

At One Hour, we respect you, we respect your time, and, most importantly, we respect the trust that you put in us to keep your home comfortable. It’s why we back all of our work with a 100% customer satisfaction guarantee for two years, and it’s why we’re always on time—guaranteed.

We Have a Reputation

For Being Punctual, Friendly and Knowledgable

4.8

(2477 reviews)

nikolai fonso

05-31-2025

“Greg Nieves is the pinnacle of professionalism. He’s an expert with a lot of knowledge and is very honest about the work that needs to be done. Highly recommend!”

Kelsey

05-30-2025

“Greg Nieves came and looked at my AC. He was honest with me about it being done for. I went with One hour to replace my system because of his expertise. Looking forward to my install”

Cody O

05-30-2025

“Greg Nieves was super helpful, upfront, and honest. What a great experience!”

Jenny Rodriguez-Luby

05-29-2025

“Greg came to my house on a Friday because my furnace was not working. He took time to help me decide on a new system and they had it installed the next day even though it was a Saturday.”

Sara Aguayo (SarBear3)

05-29-2025

“This is by far the fastest service I've ever had. Prices are fair. My technician's name Greg. He was very professional and accurate. He knew what he was doing no doubt.He definitely gets 5 stars from me! Thanks again Greg.. Kudos Greg! Great job. 👍👌😀”

Cyndi Collins

05-29-2025

“Excellent job, thank you for being so responsive!”

Preston Saarinen

05-28-2025

“Greg did such an amazing job would highly recommend!!!!!”

Cynthia Smith (RED AJ)

05-28-2025

“Amazing company!!!”

Gigi Grammy

05-28-2025

“5-STARS FOR GREG N. I had a fantastic experience with Greg from One Hour Heating and AC. He was prompt, professional, and incredibly knowledgeable. He took the time to explain everything clearly and made sure the job was done right the first time. Not only did he fix the issue efficiently, but he also gave helpful tips to keep our system running smoothly. It’s rare to find someone so courteous and dedicated to customer satisfaction these days. Highly recommend Greg and the team at One Hour Heating and AC!”

Sarah Conley

05-28-2025

“Greg's performance was exceptional; he provided invaluable assistance and delivered outstanding results.”

Special Offers

Mention these discounts at time of service

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Annual Maintenance!

$89 Heater Tune-Up, $99 AC Tune-Up

Expires: 2025-06-30

Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Management reserves the right to modify offers at any given time. Some restrictions may apply.
$2025 Off

Any New Furnace and AC System

Expires: 2025-06-30

Valid at participating locations. Limit one coupon per household. Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Some restrictions, taxes and fees may apply.
$100 Off Any Service

For Every $1000 Spent

Expires: 2025-06-30

Valid at participating locations. Limit one coupon per household. Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Some restrictions, taxes and fees may apply.
FREE Indoor Air Quality Assessment

with Any HVAC Service

Expires: 2025-06-30

Valid at participating locations. Limit one coupon per household. Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Some restrictions, taxes and fees may apply.
$100 Off

Oxy Quantum LED UV Lights and Whole-Home Filtration Systems

Expires: 2025-06-30

Valid at participating locations. Limit one coupon per household. Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Some restrictions, taxes and fees may apply.
Bundle & Save!

Get a discounted duct cleaning when you upgrade your IAQ system

Expires: 2025-06-30

Valid at participating locations. Limit one coupon per household. Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Some restrictions, taxes and fees may apply.
No Service Fee

With Completion of Repair!

If no repair is made, service fee may apply. Limit one coupon per household at participating locations!Coupon must be presented at time of purchase. Cannot be combined with any other offers or discounts. Management reserves the right to modify offers at any given time. Some restrictions may apply.

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HVAC Services You Can Count On

Our customers love what we do because we treat them like the neighbors they are to us. While we carry the One Hour name, we are an independently owned and operated business. We are personally invested in the local community and serve Fort Collins, Longmont and Loveland. We back our work with a 100% satisfaction guarantee, provide StraightForward® pricing guides for your benefit, and will pay you back for being even one minute late to an appointment.

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.

0% Financing Available

Prioritize your comfort without fronting the entire bill on day 1 – contact us today to learn more about financing options.

Discover Your Options

Meet the Loveland Team

Cory Clinton

VP of Operations

As VP of Colorado Operations, Cory oversees One Hour Heating and Air Conditioning, Mister Sparky Electrical and Benjamin Franklin Plumbing in Loveland and Denver. While that’s a lot to do, he and his team are handling it all well – they’ve been honored with 2009 Franchise of the Year, 2010 Employer of Choice Award for Retail, and 2012 and 2014 Division of the Year awards.

Cory has been in the industry for 14 years and believes that the stability of the franchise and income potential are two good reasons for getting into skilled trades with the company. Cory is a California native who married his high school sweetheart and is raising his two children in Loveland.
Ashley Forgacs

Operations Manager

Ashley Forgacs, based in Loveland, CO, started her career in personal training and retail management. Intrigued by the home services trades' relevance and demand, she joined One Hour Heating and Air Conditioning of Colorado as a Customer Service Representative in 2012. Now, as Operations Manager, Ashley is passionate about creating a strong company culture and providing development opportunities for employees at all levels. She is proud to offer the best warranties and guarantees behind our services, and instills in her team that communication is the key to quality customer service. Ashley lives with her husband of three years (her high-school sweetheart), young son, two dogs, and two cats. Outside of work, she takes advantage of Colorado's outdoors by skiing, camping, and paddle boarding, as well as supporting local charities Realities for Children and River’s Promise.

HVAC Near Me In...

One Hour Heating & Air Conditioning® of Loveland services the following communities:

Allenspark
Altona
Berthoud
Black Hawk
Briggsdale
Brush
Campion
Drake
Dacono
Eastlake
Eaton
Erie
Estes Park
Evans
Firestone
Fort Collins
Frederick
Galeton
Gill
Glen Haven
Greeley
Grover
Henderson
Hygiene
Johnstown
Kersey
La Salle
Longmont
Loveland
Lucerne
Mead
Milliken
Niwot
Platteville
Red Feather Lakes
Severance
Timnath
Wellington
Windsor

One Hour Heating & Air Conditioning technician talking to a customer on the phone.

Hours of Operation

We are available 24/7 to take your call for emergencies

Monday

24 hours

Tuesday

24 hours

Wednesday

24 hours

Thursday

24 hours

Friday

24 hours

Saturday

24 hours

Sunday

24 hours

You've got questions

We've got answers

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Expert Tips

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