NATE - Certified

Heating & Air Conditioning in Firestone, CO — Built for Carbon Valley's Newer Homes

Firestone is the newest housing stock McCormick Heating & Cooling serves, by a wide margin. The median home here was built in 2009, that’s 16 years newer than any other city on our service map, and only 5.1% of Firestone housing predates 1980. That changes what actually goes wrong with your HVAC system, and it changes how we work here.

The furnace failing in Firestone right now is not a decades-old unit limping along. It is the builder-grade 80% AFUE equipment installed when St. Vrain Ranch and Saddleback were framed out between 2004 and 2009, equipment now hitting 17 to 22 years old, which is precisely where original builder systems reach end of life. And because whole subdivisions were built in the same window, they age out together.

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What HVAC Services Does McCormick Provide in Firestone?

McCormick's NATE-certified technicians handle every residential heating and cooling need in Firestone, from heating services to air conditioning installation and repair. For furnaces specifically (the strongest need in Firestone's 2004-2009 housing), we provide furnace repair, furnace installation and replacement, and furnace tune-up and maintenance. When a system quits on a January night, emergency furnace repair is available 24/7.

We are certified Armstrong Air dealers and service all makes and models, including the builder-installed brands common in Barefoot Lakes and Booth Farms.

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Why Are Firestone Furnaces Failing Now Rather Than Later?

Three local facts explain what our technicians see in Firestone week after week.

The housing stock aged in lockstep

89.3% of Firestone homes were built in 2000 or later, and 43.6% since 2010. When a subdivision goes up in a four-year window with the same builder-grade equipment, the failures arrive in a wave, not a trickle. If your neighbors in St. Vrain Ranch are replacing furnaces this year, your original unit is on the same clock.

The heating load is real, even at the bottom of our map

Firestone sits at 4,856 feet but still carries roughly 6,578 heating degree days per year (NOAA 1991–2020 normal, measured at Longmont 2 ESE, the nearest station 6.6 miles west). A 17-year-old 80% AFUE furnace working that load is running on borrowed time.

Old Town is the exception, not the rule

The small pre-1980 pocket in Old Town Firestone behaves differently from the rest of town: older ductwork, different sizing questions. Our technicians diagnose it as what it is instead of applying a new-build assumption.

One more Firestone-specific note: your electric utility is United Power, a member-owned cooperative that has served the Carbon Valley since acquiring the territory in a late-1980s land swap. If you're weighing a heat pump or a dual-fuel setup, that matters. Our technicians spec equipment for your actual utility, not a generic Front Range assumption.

Who Permits a Furnace Replacement in Firestone?

The Town of Firestone Building Division permits and inspects furnace replacements. One detail worth knowing: Firestone still enforces the 2018 I-code family, while Fort Lupton, eight miles east, runs the full 2024 set, so code requirements genuinely differ from one Weld County town to the next. McCormick pulls the permit, installs your furnace to the code edition actually in force in Firestone, and meets the inspector on site.

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McCormick’s came through again with Justin doing a great job for us. We had furnace and A/C maintenance done at our new house to make sure everything was working properly. A couple of issues were found and Justin had them fixed within a couple of hours. Now we have peace of mind about our HVAC system. Highly recommend McCormick’s!
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Mary P.
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Angelo is a fantastic worker, he was very helpful and made things easier.
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miskokittagakoonsekwe
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Angelo was very knowledgeable and helpful. Would definitely use this company again!
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Lilyana Palafox profile picture
Lilyana Palafox
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Spencer was great! He solved our gas leaks very quickly.
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J Stark profile picture
J Stark
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Justin provided excellent service during our fall furnace checkup. Justin was very friendly and courteous. Treated our home and us with much respect.
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Kevin Vaubel
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Spencer did really great
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Justin Shaver profile picture
Justin Shaver
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Justin gave fantastic service. Was quick and responsive. Thank you McCormick services for a rapid repair.
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Ethan Stein profile picture
Ethan Stein
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Justin was friendly, communicative, and efficient. Would definitely hire him again.
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Michelle Brodsky profile picture
Michelle Brodsky
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McCormick was very quick and responsive when I reached out about a furnace concern. They got me scheduled same day and Justin showed up on time and was very thorough and professional. He walked me through the service and made sure everything was functioning properly. Great company and great staff!
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Samantha Bellendir
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No Heat or No AC? We're Here 24/7

Fast after-hours emergency HVAC service when your system can't wait.

How Fast Can McCormick Reach Firestone?

It depends on the day. On an ordinary day, same-day or next-day service is common. During the first hard freeze or a July heat wave, when systems fail across Weld County at once, it takes longer, and we'll give you a real arrival window when you call.

Call (720) 443-2690. Your technician is sent from McCormick's Greeley headquarters at 2881 S 31st Ave. If your furnace quits in Barefoot Lakes at 2 a.m., call the same number.

McCormick is a Trusted Armstrong Air Partner
Voted Best HVAC & Furnace Repair Service in Greeley, Colorado
Voted Best HVAC & Furnace Repair Service in Fort Collins, Colorado
McCormick Heating and Cooling is a BBB Accredited Business
Our HVAC Techs are NATE Certified Technicians
Our company is Google Guaranteed Service Provider

Frequently Asked Questions (FAQ)

Why Firestone Homeowners Choose McCormick

McCormick Heating & Cooling has served Northern Colorado since 2004, earning more than 800 five-star Google reviews along the way. Our technicians are NATE and EPA-certified, and the company is insured in Colorado.

McCormick Heating & Cooling · 2881 S 31st Ave #3, Greeley, CO 80631, United States

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