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McCormick Heating & Cooling

Featured in Greeley Today 5.00 (987 reviews)(720) 217-4801

McCormick Heating & Cooling is an HVAC company in Greeley serving Northern Colorado. Its services include air conditioning, heating, indoor air quality and after-hours emergency HVAC repairs.

Business Highlights
  • McCormick is family-owned and operated.
  • Its technicians are NATE- and EPA-certified.
  • McCormick guarantees customer satisfaction on its jobs.

Service Area

Greeley, Loveland, Longmont, Fort Collins, Windsor and Evans, plus other Northern Colorado and Front Range communities.

Featured on ProsGrade. McCormick Heating & Cooling is one of 12 HVAC companies ProsGrade lists in Greeley, Colorado.

Listing details

6 services listed, including AC repair, installation and replacement, AC maintenance and Heating repair, installation and maintenance. Open 7 days a week. Rated 5.0 from 987 reviews.

  • Verified listing details
  • Service information
  • Customer review signals
  • Photo gallery
  • Public contact information
  • Published local profile

How This Business Compares

How McCormick Heating & Cooling compares with the other 11 HVAC companies on ProsGrade in Greeley, using public Google ratings and review counts.

  • Ranks in the top 10% of Greeley HVAC companies on ProsGrade by Google rating and review volume.
  • Rated 5.0 on Google, at or above the 4.9 average of other Greeley HVAC companies on ProsGrade.
  • Has the most Google reviews (987) of the 12 Greeley HVAC companies on ProsGrade.
  • One of 11 Greeley HVAC companies on ProsGrade rated 4.7 or higher from at least 10 reviews.

Services Covered

6 services
  • AC repair, installation and replacementCentral AC, mini-splits, swamp coolers and condensers.
  • AC maintenanceTune-ups that inspect, clean and test key components.
  • Heating repair, installation and maintenanceFurnaces, boilers and heat pumps.
  • Indoor air quality servicesWhole-home humidifiers, UV lights, air-filter replacements and air purifiers.
  • Emergency HVAC repairsAfter-hours service for urgent furnace, AC, heat-pump and carbon-monoxide-related HVAC issues.
  • HVAC maintenance planPriority scheduling and a member repair discount.

Reviews

What customers say

Customers praise clear communication and explanations, and reviewers also note tidy work areas. One reviewer appreciated floor protection and quick work; another valued careful boiler troubleshooting and the replacement of necessary components.

Customer Reviews

Alexander Whiteman

Justin and the team at McCormick Heating & Cooling were excellent. They took the time to thoroughly diagnose issues with my boiler, test multiple valves, and walk through the system carefully to identify the most cost-effective solution rather than just recommending unnecessary replacements. Their approach was thoughtful, transparent, and very professional. Justin in particular was fantastic—knowledgeable, patient, and clearly experienced. He explained what he was doing at each step and made sure everything was working properly before finishing the job. In the end they replaced the necessary components and got the entire system running perfectly. It’s rare to find a company that is this honest, responsive, and detail-oriented. Highly recommend McCormick Heating & Cooling if you want quality work and technicians who genuinely care about doing the job right.
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scott weiner

After a tech had done a great job fixing the A/C last summer, the heat went out. I requested American Home Shield set me up again with McCormick. I spoke with Miracle, one of the dispatchers, who set up an appointment for the next day. She got me into contact with whomever I needed to speak to throughout the process, and was infinitely patient. After inspecting the furnace, Josiah told me it was very likely DOA, and that it was more than 30 years old. Josiah explained AHS's policy regarding replacing equipment that old in case parts weren't available, i.e., there would be a cost share for a new furnace. Josiah said he would submit a report and get a quote to fix or replace the furnace ASAP – I received a text from him the same day telling me the quote was in for a replacement as parts were no longer available. I received a contract the next day. After signing it, (of course) I thought I should go with a higher capacity system than the old one. I spoke with Jesse, the owner, and he agreed. Taylor who coordinates quotes worked on cancelling the old contract and getting a new quote. Most certainly not something easily accomplished with AHS. She was able to cancel the original contract and re-spec the furnace with the one Jesse determined would be better suited for the house. The additional cost was only about $300 more for a 35% higher BTU system. David was the installer. The space behind the furnace was very tight; he custom installed the new system reversed to provide easy access to the filter box and to the innards from the front. This required a great deal of re-routing and adding to the exhaust to reach the vent, and fabricating a sheet metal adapter for the top so that the A/C unit would fit and seal properly. An issue developed a few days later where the furnace kept going on and off every 10 minutes or so. David came down from Greely at the end of his workday. He tested the system, and replaced the thermostat. He didn't get on the road home until 7:30 that night. Kay oversees compliance. She was on top of getting a permit after the installation as one was not pulled initially because there was no heat. Kay scheduled an inspection, and the work passed without a hitch. I know this is long but I wanted to fully convey the dedication McCormick has to going the extra mile for customers, to teamwork, technical expertise, and craftsmanship. They are also absolute masters in working with home warranty companies. I greatly appreciate their putting up with me, and the awsome job they did. I highly recommend McCormick without reservation.
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Kathryn Setzer

Have always had a great experience with Mccormick Heating and Cooling. Initially was referred to them by my home warranty company. They do my yearly preseason furnace checks. And most recently, David and Angelo and Justin were here to install a new furnace. Excellent communication from the office as well as the technicians prior to arrival. Professional on-site, explained the process well, left a very clean workspace when they were finished. Kudos to them for having to do all of this in a crawlspace!!
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Frequently Asked Questions

Does McCormick charge extra for after-hours emergency service?

Yes. Additional emergency service fees apply.

What does McCormick’s maintenance plan include?

It includes two visits each year: a cooling tune-up before summer and a furnace tune-up before winter.

Are financing options available for HVAC work?

Yes. HVAC financing is available through partner lenders.