call for a free quote: (303)505-9366
Why Choose Chestnut Mechanical?
Xcel Energy Trade Partner
Qualified to install rebate-eligible equipment and maximize your savings
Family-Owned & Operated
You're talking to Nick and Ally, the owners, every time you call
Honest Recommendations
We tell you what your system needs, not what makes us the most money
Free Estimates
Upfront pricing, no surprises before any work begins
Licensed & Insured
Professional, safe, dependable work you can count on
Financing Available
Comfortable home, manageable payments
Our Services
Heating & Furnace
Repair, installation, and tune-ups for all makes and models — keeping you warm all winter long
Mini-Splits
Ductless comfort for additions, garages, offices, or any room your current system doesn't reach.
Air Conditioning
Repair, replacement, and seasonal maintenance so you're ready before the first hot day hits.
Energy-efficient heating and cooling year-round. We specialize in dual fuel systems for Colorado winters.
The Chestnut Mechanical Comfort Plan
Skip the hassle of remembering to schedule — let us take care of it for you.
Single System Plan — $169/year
Best for homes with one furnace and one AC
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Fall furnace tune-up
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Spring AC tune-up
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Priority scheduling
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10% off all repairs
Whole Home Plan — $289/year
Best for larger homes with two furnaces and two AC units
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Fall tune-up on both furnaces
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Spring tune-up on both AC units
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Priority scheduling
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10% off all repairs
What Our Customers Are Saying
​"Nick found a gas leak I didn’t even know I had. Then proceeded quickly take care of it and give us the necessary next steps. they are honest and affordable, but also just great people who care about their clients. 100% recommend!
— Bailee G. | Frederick, CO
"Nick knew how to fix it without replacing the entire unit, which saved us a lot of money. He was prompt, polite, and did a great job."
— Gail S. | Erie, CO
"Chestnut Mechanical is the ONLY way to go for your HVAC needs! Affordable, friendly, timely, and always communicative! I recommend them to all my friends and family, and you should too!"
— Ryan Y. | Thornton, CO
Nick, Ally & Spencer - all so knowledgeable, easy to work with, trustworthy and polite, prompt. It is a pleasure doing business with Chestnut Mechanical.
— Bob | Erie, CO
Nick and Spencer did a great job on my project. It was an extensive retrofit that included fixing errors made by a previous contractor. Chestnut’s core value of ensuring everything is done correctly and cleaned up after they leave was on full display. Highly recommend.
— Jordan H. | Lafayette, CO
Our AC was frozen over and they we able to come out same day to evaluate the issue. Thankfully it was a simply fix and we are up and running again. Our tech explained each step & why as well as double checking basic maintenance to keep us going strong. I highly recommend them.
— Deb R. | Frederick, CO
Family Owned & Operated
We're Nick and Ally Chestnut — the husband and wife team behind Chestnut Mechanical. We started this business the way we try to run it: by doing right by people.
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Every customer we work with gets the same treatment we'd want for our own family — honest assessments, fair pricing, and workmanship we're proud to stand behind. No upselling, no surprises, no strangers at your door.
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We built our reputation one job at a time through word of mouth, and we're grateful for every customer who trusted us along the way. That trust is something we never take for granted.
