Proudly Serving Longmont, CO and the Surrounding Areas Since 1982!

The Best HVAC Company in Longmont, CO & Surrounding Areas

Committed to Comfort, Dedicated to Service

Step into comfort all year round with SAC Mechanical—Longmont’s trusted HVAC professionals. We believe in providing reliable and comprehensive HVAC services tailored to meet the unique needs of the Boulder County community. From the depths of winter to the peaks of summer, our skilled technicians are here to deliver professional heating, cooling, and air quality solutions. Our family-owned business focuses on building lasting relationships with each client, prioritizing transparency and excellence in every project.

Our extensive range of services will enhance your indoor comfort and optimize system performance. Whether you need urgent AC repairs, routine furnace maintenance, or a brand-new water heater installation, our team is equipped with the latest technology and expertise to handle every job with precision. We strive to offer energy-efficient solutions that not only improve your comfort but also contribute to lower utility bills and a healthier environment. When your heat, air conditioning, or air quality needs attention, contact the residential and commercial experts at SAC Mechanical. We’re ready when you need us!

Contact SAC Mechanical—We’re ready when you need us.

Explore Our Professional HVAC Services

Customized Solutions for Optimal Comfort

Explore our wide array of HVAC services designed for longevity and efficiency. Our expert team always provides top performance and durability from installation to maintenance.

Air Conditioning

Stay cool and comfortable with our expert AC installation and repair services.

Heating

Keep warm with our efficient heating solutions, including furnaces, heat pumps, and more.

Indoor Air Quality

Breathe easier with our comprehensive air quality services, enhancing your home and office environment.

Water Heater

Enjoy consistent and reliable hot water with our water heater installation and repair services.

Electrification

Experience the future of home energy with our electrification services.

What Our Customers Are Saying

Stan and Harrison just left here a minute ago. They did a great job on the service they performed today. I just wanna brag on them as best I possibly can. 5 stars are not enough. They’re really pros, obviously, and gentlemen on top of that. They explained everything in ways I could understand it, showed me things they found, and asked if I had any questions, and I did, and they answered them. Man, next time I have service, I want those guys to come back out. Just really happy about this, and just wanted to let you know!

- Ron T
Rating: 5

SAC is our go to for all of our HVAC needs. They’ve been servicing our systems for several years and have been nothing but thorough and professional. Most recently we replaced our AC unit, and there process was smooth and fast. We love these guys and highly recommend them for your heating and cooling needs!

- Tim M
Rating: 5

We just had a service call for a water heater issue and SAC went beyond our expectations by responding with a quick and high quality oriented solution. We have used them in the past for heating and A/C equipment issues and installations and have had a similarly excellent experience. I recommend them without any reservations.

- Pete B
Rating: 5

Trusted by the Longmont Community for Over 40 Years

Integrity

Integrity stands at the core of every HVAC service, building a foundation of trust with each customer.

Honesty

Honesty guides every transaction so our clients fully understand their options and services.

Professionalism

Professionalism shines through with each project, reflecting high standards and meticulous attention to detail.

Fairness

Fairness underpins all pricing and service agreements, creating a balanced and just experience for every client.

Explore Opportunities with SAC Mechanical

Here, you’ll find additional services and opportunities that SAC Mechanical offers to enhance your experience with us. From career growth to financial flexibility, learn how we can meet your specific needs and preferences.

Careers

Discover a fulfilling career path with us in a dynamic and supportive environment.

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Financing

Take advantage of flexible financing options to meet your HVAC needs without stress.

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Specials

Check out our current specials to save on your next HVAC service or installation.

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Great Service Starts with Great Products

Exceptional service is supported by superior products. That’s why SAC Mechanical partners with industry leaders like Navien, RGF, Lennox, AprilAire, and others, each renowned for their innovation and reliability in HVAC technologies. Whether it’s energy-efficient furnaces from Lennox, air purification systems from RGF, or high-performance humidifiers from AprilAire, our product selection guarantees optimal comfort and efficiency for residential and commercial clients. Our commitment to quality means investing in products that offer lasting benefits and support sustainable practices.

RGF air purification Technologies Logo
Aprilaire Logo
The Unico System Logo
LG Air Conditioning Technologies Logo

Experience Exceptional HVAC Services

Get in touch with SAC Mechanical today and experience unparalleled HVAC service. Our team is eager to assist you with your needs and guarantee your satisfaction.

Call Us Today
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