
Serving Westminster and nearby
Heating & Air Conditioning in Westminster, CO
Heating and cooling repair and replacement for the established neighborhoods of Westminster.
Services
Our services in Westminster
AC RepairWarm air, a unit that will not start or iced-up lines. We find the cause and quote the fix first.
Air Conditioner InstallationNew central air, sized with a load calculation and installed to code, with the permit handled.
Furnace RepairNo heat, short cycling or a strange smell. We get the furnace running safely and tell you what failed.
Furnace Installation & ReplacementStandard and high-efficiency furnaces, sized with a load calculation, set up for altitude and installed with a permit.
Heat Pump Installation & ServiceCold-climate heat pumps, dual-fuel systems and ductless mini-splits, sized for our winters and serviced year-round.
Heating & Cooling Tune-UpsSeasonal tune-ups for furnaces, air conditioners, heat pumps and swamp coolers, plus an optional maintenance plan.
Local know-how
What we see in Westminster homes
Neighborhoods in Westminster run from the 1960s through the 1990s, so a typical house has already had at least one round of heating and cooling equipment replaced. Some air conditioners from those replacements still use R-22. They can keep running, but any refrigerant leak is costly to fix.
Ducts in older homes have often been cut into and extended during remodels. Gaps at joints and register boots in the attic or crawl space leak heated and cooled air, and sealing them is one of the cheaper ways to improve comfort.
Utility rebates are sometimes available for high-efficiency equipment and heat pumps. Program rules change, so we check what applies when we quote rather than promising a number.
If you are buying or selling in Westminster, we can inspect the furnace and air conditioner and give you a written report to go with the home inspection.

Why us
Why Westminster chooses Mesabrook Heating & Air
Upfront prices
You approve the price before we start
Same-day service
Most calls booked the day you call
Licensed and insured
License number on every invoice
No subcontractors
Our own technicians on every job
5 out of 5 stars
The furnace kept lighting and shutting off. It turned out to be a dirty flame sensor and a filter I had forgotten about. He cleaned the sensor, showed me where the filter goes and didn't try to sell me a new furnace.
Carlos D., Westminster · Google
Sample review
5 out of 5 stars
Hail flattened a lot of the fins on our outdoor unit and the AC was struggling. They combed out what they could, cleaned the coil and told us honestly the unit still had a few good years in it.
Rosa G., Aurora · Google
Sample review
4 out of 5 stars
Booked a fall tune-up. The tech found a cracked condensate line on the furnace and a filter slot that let air go around the filter. Fixed both. They had to move my appointment once, but they called a day ahead.
Kevin S., Thornton · Google
Sample review