Meyers Heating & Air Conditioning
“He did all necessary measurements, he sent a competent team for the installation, he did the final inspection including the installation of a new Ecobee thermostat and everything works fantastic.”
Best HVAC Contractors in Boulder, CO
24 companies listed · 10 in Boulder · 8 open 24/7 · 14 open weekends · 23 rated 4.5+
Data verified October 27, 2026
Save Home Heat
“Repairs, maintenance are a cost, but it is better to have a unit running and avoiding breakdowns in the future and Save Home Heat can get the job done.”
Canyon Plumbing & Heating
“It's easy to find someone who up charges you but this feels like the first time someone has done everything in their power to find a way to finish the job for as cheap as possible.”
Go Tankless
“When I researched tank-less hot water heaters the reviews were mixed (One had to run the water for a long time to get hot water, water wasn't hot enough, etc.”
Mesa Plumbing
“Seeing the negative reviews I have to wonder if there aren't some bored trolls going after them because my experience and the experience of many others has been very pleasant.”
Aqua Care Solar LLC
“They replaced the 15 year old glycol in our system that had darkened and turned acidic with solar appropriate glycol, and very efficiently diagnosed and replaced a controller that had quit operating.”
The 24 companies listed for Boulder, CO work on furnaces, heat pumps and air conditioners. Each profile repeats what the company publishes about its hours, its license and the equipment it fits, alongside ratings and quotes drawn from public reviews.
Area overview: Boulder, CO
Of the 24 companies we list here, 10 are in Boulder itself and 14 come from towns including Longmont (6, 13 mi), Denver (3, 27 mi) and Thornton (2, 18 mi). The companies on this page are rated from 4.4 to 5.0 across 7,519 reviews; 19 have 50 or more reviews and 23 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (92%), responsiveness (90%) and quality (81%). 8 are open around the clock; 14 are open on Saturdays and 12 on Sundays. The services the companies on this page list most often on their websites are heating (6), air conditioning (4), commercial hvac (4), indoor air quality (4) and plumbing (4). 8 show a license on their websites; 4 list staff certifications (EPA and NATE) and 10 have a BBB rating of A or A+. 18 have ten or more years of experience, the longest 59 years. 10 offer emergency call-outs; 14 offer financing or payment plans; 12 give free estimates; 6 are family- or locally-owned and 17 list coupons or special offers. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
Why do some of these firms show another city?
10 of the 24 companies are based in Boulder; the others come from other towns within 30 mi. This trade drives to you, so a shop over the county line is normal. Ask whether your address carries a travel charge.
Norm's Plumbing
“All this involved multiple trips to our house and Ernie was always a great person to have around and willing to spend that little bit of extra time to explain things to us.”
Evolve Solar & Radiant Heat
“Raimund and his co-worker, after having submitted the most competitive bid, arrived in time to do a complete furnace and water tank removal and replacement.”
Boulder Metal Products
“I am a Realtor and need HVAC service often for my buyers and sellers.”
Right Hvac Repair & Installation
“From the regular visit by their estimator through their installation period,I have never come across a more experieced and professional company than them.”
Welzig Heating & Air
“Welzig was incredibly attentive and fast to deal with the problems including sending multiple techs, spending hours on the phone with Rinnai and even having a Rinnai rep come to the house to troubleshoot.”
TNT Home Services
“I had someone else do the work because of this, but only called TNT back because Brent was super friendly when he came with the other guy and I needed finishing touches done.”
Colorado's Finest Heating and Air Conditioning
“Not only did they take extra time going over everything to make sure all my questions were satisfied, but the installation went smoothly and professionally.”
Mountain Breeze Heating & Air
“I've talked to friends who said it took a couple of days to complete installation of a new system, but Tracy and team were in by 8 am and out by 11:30 am.”
Sanchez Mechanical
“He returned the next day at 0800, removed the old furnace and A/C, and installed a new, Trane, 850,000 BTU, 2-stage furnace and new thermostat (the A/C installation will be later).”
Blue Valley Heating & Cooling
“We explained that we were heading out that evening to go to the mountains and wondered if it would be possible for them to come install it while we were gone.”
KJ Thomas Mechanical
“We actually ended up deciding on another approach that didn't involve his services at this time but I will definitely be looking to use KJ Thomas Mechanical in the future!”
Logic Hvac/r
“The best part about working with Logic HVAC/R and their crew was that they really seemed to know exactly what we wanted and how to deliver it to us at a great price.”
All Climate Systems Heating & Cooling
“Audi and his team have serviced and or installed heating and air conditioning units in three of our rentals, our son's home, and our home over the past five years.”
Jd's Denver Plumbing
“Had three faucets replaced with upgraded fixtures, two shower fixtures replaced and upgraded with additional hand held features, and toilet replacement.”
Service Experts Heating & Air Conditioning
“I've generally been skeptical of HVAC companies because I don't know enough about how the systems work to know when I am being tricked into purchasing products or services I do not actually need.”
Rabbit Heating & Air LLP
“No sales pressure to upgrade, although incentive was offered with partial cost of repair credited towards a new hot water heater if replaced within the next 30 days.”
Impact Heating & Cooling Inc.
“Herb explained what he thought was going on with our furnace (excessive gas pressure) and how in the future I could read off an error code that would be helpful from a light on the lower panel.”
Service Experts Heating & Air Conditioning
“Matt Bell did a A/C spring maintenance check-up this week, and performed a thorough inspection, as well as an assessment and recommendations for the future, to insure a long life with our A/C.”
Why these companies made our list
What customers say about companies in and near Boulder
- “Collin and Darryl were great to work with, explained the projection in detail, we discussed options, informed me of their progress, did the work professionally, courteously, clean, neat and finished ahead of time.” — customer of Meyers Heating & Air Conditioning
- “Save Home Heat did a great job of evaluating my home for a high efficiency heat pump system, explaining numerous options and rebates, and generating a competitive price quote for the installation!” — customer of Save Home Heat
- “The service men were prompt and courteous. They protected our wood floors so there was no damage removing the old furnaces and hot water heater from the basement.” — customer of Service Experts Heating & Air Conditioning
- “Sid is very honest, knowledgeable, answering very fast and did a great job fixing our furnace.” — customer of Sanchez Mechanical
- “Jordan did a great job on our new furnace and was transparent about everything that had to be done.” — customer of Colorado's Finest Heating and Air Conditioning
Excerpts from public reviews of the companies listed on this page.
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