5-Star Reviews
Years of Local Service
Accredited Business
Technicians
and Operated
What HVAC Services Does McCormick Offer?
McCormick offers five core HVAC service categories: air conditioning, heating, indoor air quality, after-hours emergency repair and seasonal maintenance plans. Each covers repair, installation, and full‑system replacement.
During the summer, most homeowners contact us for AC repairs, replacements, and cooling system upgrades. Our heating and indoor air quality specialists remain available year-round, so you can get help whenever you need it.
Whether your AC isn't cooling, your energy bills keep climbing, or it's time to replace an aging system, our cooling specialists can help. We repair, install, and replace central air conditioners, ductless mini-splits, and swamp coolers designed to perform in Northern Colorado's dry climate. We'll diagnose the problem first, explain your options clearly, and recommend the solution that makes the most sense for your home and budget.
When winter temperatures arrive, you need a heating system you can count on. We repair, install, and maintain furnaces, boilers, and heat pumps to keep homes warm and comfortable. Whether you're dealing with uneven heating, rising utility costs, or a complete system failure, our experienced technicians will help restore reliable comfort as quickly as possible.
Comfort isn't just about temperature. Dry air, dust, allergens, and poor airflow can make your home less healthy and less comfortable year-round. We install whole-home humidifiers, UV air purification systems, and high-efficiency filtration solutions that help improve indoor air quality while protecting your HVAC equipment.
HVAC problems don't always happen during business hours. If your furnace stops working on a freezing night or your AC fails during extreme summer heat, our team provides after-hours emergency service to restore comfort as quickly as possible. We'll assess the problem, explain your repair options, and get your system back up and running whenever we can. After-hours service is available for an additional charge.
Routine maintenance is one of the easiest ways to prevent unexpected breakdowns, improve efficiency, and extend the life of your HVAC system. Our seasonal maintenance plans include thorough inspections and tune-ups that help catch small issues before they become expensive repairs. Regular service also helps keep your equipment running safely and efficiently through every Colorado season.
Why Choose McCormick Heating & Cooling?
Homeowners choose McCormick because we're family-owned and operated, with 20+ years serving Northern Colorado. Our technicians are NATE- and EPA-certified, and every job is backed by a satisfaction guarantee. We pair transparent pricing with local, high-altitude expertise.
Since 2006, we've built our reputation one neighbor at a time. Living and working in Northern Colorado gives us firsthand experience with the region's dry climate and high elevation. Homes around Greeley sit at roughly 6,700 feet above sea level, and that thinner air affects HVAC performance and system sizing.
Choosing the right equipment helps improve efficiency, maintain comfort, and reduce unnecessary wear over time. That's why we diagnose your system before recommending repairs or replacement. We explain every option clearly and never pressure you into equipment you don't need.
We back our work with warranties, and repairs and replacements stay manageable with financing options from Synchrony, Greensky, and Consumer Financing.
Fast after-hours emergency HVAC service when your system can't wait.
Where Does McCormick Provide HVAC Service?
McCormick proudly serves homeowners throughout Greeley, Evans, Windsor, Johnstown, Loveland, Fort Collins, Timnath, Eaton, Severance, Milliken, and nearby communities. Whether you need emergency AC repair in Greeley, furnace replacement in Windsor, or indoor air quality upgrades in Fort Collins, our local technicians are ready to help.
For local detail, explore our HVAC service areas.
Frequently Asked Questions
Ready for Reliable Comfort?
Whether you need a fast AC repair, a full-system replacement, or a seasonal tune-up, McCormick Heating & Cooling is here for you. Our local HVAC technicians proudly serve homeowners throughout Greeley, Windsor, Loveland, Evans, Eaton, and surrounding communities.
Tell us what's happening with your HVAC system, and we'll recommend the most cost-effective solution. Request your free estimate today or give us a call to speak directly with our local team.
McCormick Heating & Cooling · 2881 S 31st Ave, Unit 3, Greeley, CO 80631
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