5-Star Reviews
Years of Local Service
Accredited Business
Technicians
and Operated
What Areas Does McCormick Heating & Cooling Serve?
McCormick Heating & Cooling serves Greeley (our headquarters and map-pack city) plus Northern Colorado and the Front Range — including Loveland, Longmont, Fort Collins, Windsor, Evans, and many more across Weld, Larimer, and Boulder counties.
Operating from one central Greeley location lets our local crews reach most Northern Colorado neighborhoods within a short drive, so you get the same family-owned service whether you're in town or one county over. We provide air conditioning, heating, indoor air quality, and emergency HVAC service to every community listed on this page. Pick your city below.
(HQ · map-pack city): Our home base at 2881 S 31st Ave. Same-day AC, heating, and emergency HVAC for every Greeley neighborhood.
Foothills temperature swings are hard on equipment. We keep Loveland furnaces and AC units tuned for the season ahead.
From older downtown homes to newer builds, we right-size heating and cooling for Longmont's mix of housing.
Our northernmost hub. Fast repairs, system replacements, and indoor air-quality upgrades across Fort Collins.
A quick drive from our Greeley HQ. Efficient AC and furnace service for Windsor's growing neighborhoods.
Right next door to headquarters so Evans homeowners get some of our fastest same-day response times.
Front Range comfort solutions for Boulder's energy-conscious homes, from high-efficiency systems to air quality.
Additional Northern Colorado communities we cover:
Ault · Berthoud · Dacono · Eaton · Erie · Firestone · Fort Lupton · Frederick · Galeton · Garden City · Gill · Gunbarrel · Johnstown · Kersey · La Salle · Lucerne · Lyons · Mead · Milliken · Niwot · Nunn · Pierce · Severance · Timnath · Wellington
Don't see your town? We cover much of Northern Colorado and the Front Range. Give us a call and we'll confirm coverage for your address.
Why Choose a Local, Greeley-Based HVAC Company?
Because you get a real local team, not a national call center. McCormick is based in Greeley, dispatches technicians across Northern Colorado from one HQ, and backs every visit with 20+ years of family-owned service and a satisfaction guarantee.
A single, established Greeley location means consistent scheduling, faster drive times to most NoCo towns, and the same trusted crew from your first tune-up to a full system replacement. We also understand Front Range conditions: high-altitude, dry-climate homes near 4,665 feet put a real strain on furnaces and AC systems. Our techs size and service equipment accordingly. Same-day service and after-hours emergency support (additional cost) keep you covered when comfort can't wait.
McCormick Heating & Cooling has been family-owned and operated since 2006. That’s more than 20 years of Northern Colorado HVAC service backed by a satisfaction guarantee. Our NATE- and EPA-certified technicians stand behind every install and repair, so homeowners across the region trust us with their comfort.
That experience shows up in the details: factory-trained, NATE-certified and EPA-certified technicians, manufacturer warranties on new equipment, and a workmanship guarantee on the jobs we complete. 5.0 ★ rating · 1,030+ Google reviews reflect the consistent, local service families count on year after year.
Fast after-hours emergency HVAC service when your system can't wait.
Call (720) 217-4801. McCormick covers much of Northern Colorado and the Front Range, and we'll quickly confirm whether we service your address. If your town isn't listed yet, we'll connect you with the nearest local crew or take your details through our free estimate form.
Frequently Asked Questions
Ready for Reliable, Local HVAC Service?
Find your city above to reach your neighborhood page, or contact our Greeley team today for a free, no-pressure estimate.
McCormick Heating & Cooling · 2881 S 31st Ave, Unit 3, Greeley, CO 80631 · Mon–Fri 8am–5pm · After-hours emergency service available
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