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What HVAC Services Does McCormick Provide in Fort Collins?
McCormick covers the full residential heating and cooling lifecycle for Fort Collins homes. For heating, that means furnace repair when a system quits mid-January, furnace installation and replacement when it's time to retire a unit, furnace tune-up and maintenance to keep manufacturer warranties intact, and emergency furnace repair when the failure won't wait for business hours. We service furnaces, boilers, heat pumps, and mini-splits. See the full range on our Heating Services hub page.
On the cooling side, our team handles AC repair in Fort Collins which covers diagnostics, common failures, and what to expect from a repair visit.
Why Do Fort Collins Homes Have Specific Heating Needs?
Three things make Fort Collins heating different from the rest of Northern Colorado.
Elevation
At 4,993 feet, Fort Collins sits at the highest elevation of the Larimer cities we serve. Thinner air changes combustion behavior, and gas equipment that isn't set up for altitude runs inefficiently or unsafely.
Heating load
Fort Collins carries an annual heating load of 5,918 heating degree days (NOAA 1991–2020). That’s roughly 9% more heating hours per year than Greeley's 5,431, while Loveland runs higher still. Equipment sizing that's right for one of these cities is wrong for the others.
Two housing populations at once
The median Fort Collins home was built in 1992, but that average hides a split: 30.6% of the housing stock predates 1980 (the 1970s alone account for 15.4%) while 36.6% is post-2000. A 1970s furnace and duct system in Old Town, Laurel School, or Sheely Drive presents completely different problems than a builder-grade system aging out in Rigden Farm or Harmony Ridge. Our technicians work both ends of that spectrum every week.
And because Fort Collins Utilities owns the electric side while a separate utility owns the gas side, electrification decisions here run through two sets of rules. We'll walk you through what that means for your specific home.
Who Permits a Furnace Replacement in Fort Collins?
The City of Fort Collins, not Larimer County. Fort Collins Building Services issues a heating or cooling permit for a furnace, air conditioner, heat pump, mini-split, or ductwork replacement, and the city has enforced the 2024 editions of the IRC, IMC, IFGC, and IECC since April 1, 2026.
That matters when you're comparing contractors. A bid written to an older code edition can fail a Fort Collins inspection that the same work would pass one county over. McCormick pulls the city permit and installs to the code edition Fort Collins actually inspects against.
Recent Work in Fort Collins
Fast after-hours emergency HVAC service when your system can't wait.
How Fast Can McCormick Reach Fort Collins?
Call (720) 217-4801. One number for daytime and after-hours. An 11 p.m. January furnace failure follows the same path as a morning call, routing straight to our on-call emergency technician.
A technician is dispatched from our Greeley headquarters at 2881 S 31st Ave, heading up US-34/I-25 to your Fort Collins neighborhood, whether that's Old Town or Harmony Ridge.
Frequently Asked Questions (FAQ)
Why Fort Collins 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.
We also serve Loveland and Windsor, see all our service areas.
McCormick Heating & Cooling · 2881 S 31st Ave #3, Greeley, CO 80631, United States
Looking for cooling instead? See our air conditioning services, or browse all our HVAC services.
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