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AC Repair, Replacement, and Maintenance in Longmont, CO

Longmont’s Most Trusted, High-Efficiency Cooling Services

For over four decades, Cooper Heating & Cooling, known as the Cooper Green Team, has been a trusted name in providing high-efficiency cooling solutions to the residents of Colorado, including Longmont. Whether you’re facing an urgent AC breakdown, need a routine maintenance check, or are considering a brand-new, energy-saving installation, our team of highly trained and licensed professionals is ready to ensure your home remains comfortable and your utility bills low.

Fast 24/7 Service

By highly-trained and licensed experts

High-Quality Work

Done right the first time

$167 million

In customer energy savings to date

Expires May 31, 2024

$50 Off Any Service Call

Coupon only valid at Cooper Heating and Cooling. This coupon is for the use by original receipt only. While supplies last, no substitutions and no rain checks issued. Coupon must be applied at the time of service. Limited to one coupon or offer per service location. May not be used with any other coupon or offer. No cash value. Some restrictions may apply. Ask manager for details.

Our Cooling Services in Longmont

AC Installation and Replacement Services in Longmont

The Cooper Green Team is the installer of choice for homeowners looking to reduce their energy expenses and keep Colorado clean and beautiful for generations to come. We proudly install the most high-efficiency AC systems, including both central air conditioners, ductless mini-splits, and all-electric heat pumps. We offer a variety of brands suited to your needs and budget. And with upfront estimates and flexible financing, you can trust us to deliver peace of mind and 5-star satisfaction.

Our AC installation services include:

AC Repair Services in Longmont

If you're experiencing issues with your air conditioner and you need a fast, reliable repair, give the Cooper Green Team a call. Our licensed technicians arrive in fully-stocked trucks ready to handle repairs on all makes and models. We proudly offer a 1-year renewable warranty on labor and a 100% Customer Satisfaction Guarantee. With convenient same-day scheduling and some of the fastest response times in the state, Cooper makes it easy to get your AC back up and running in no time.

Our AC repair services include:

AC Maintenance Services in Longmont

When it comes to maintenance, nobody in Colorado offers a more comprehensive tune-up than The Cooper Green Team. Our 17-point safety and performance check is designed to lower your energy bills, eliminate surprise repairs, and extend the lifespan of your AC. We’ll assess all critical parts, remove debris from the outdoor unit, replace your air filters, and even provide a complementary air quality assessment.

For total peace of mind, we also offer an annual maintenance program that includes a yearly inspection of your AC system, as well as special discounts on repairs, priority scheduling, and more. It’s called the Cooper Green Club Maintenance Plan, and it’s made for cost-conscious homeowners who want to keep their home costs down and their comfort up year-round.

Our AC maintenance services include:

Longmont Resident Finds Comfort with Cooper

Problem: M.H. was in need of expert services for two critical home improvements: installing a new air conditioning unit and replacing an old furnace. The challenge was finding a service provider that was not only technically skilled but also reliable and communicative, ensuring a smooth and transparent process from start to finish.

Solution: M.H. decided to go with Cooper Heating & Cooling for their air conditioning and furnace installation needs and couldn't be happier. They were particularly impressed with one of our technicians, Blaine, who was professional, on time, and really easy to talk to. This made asking questions and figuring out the details a breeze. The rest of the team who came to work on the installations were just as professional and trustworthy, making M.H. feel comfortable having them in their home. After such a great experience, M.H. is happy to recommend Cooper Heating & Cooling to anyone looking for reliable and top-notch service.

"The technicians have been professional and trustworthy while working in my home."

I have worked with Cooper Heating & Cooling on two jobs over the years - both AC unit and new furnace install - and the experience was excellent. Blaine Butler is professional, very timely, and easy to talk with through topics, questions, and logistics. The technicians have been professional and trustworthy while working in my home. I highly recommend working with Cooper.


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Enjoy The Benefits of the Cooper Green Club

Interested in saving money on home services throughout the year? We've got a maintenance plan that's right up your alley. Thousands of Colorado homeowners are already enjoying savings rewarded through the Cooper Green Club. The only thing that's missing is you!

Enroll in Cooper Green Club and get perks like:


tune-ups per year (heating & cooling)

reduced emergency service fees


discount on heating services/​repairs

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Ready for 5‑Star Cooling Service in Longmont?

Hours of Operation

The Cooper Green Team is open 24 hours a day, 7 days a week.

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