call for a free quote: (303)505-9366
The Easiest Way to Avoid a Costly HVAC Breakdown
Most HVAC breakdowns don't happen out of nowhere — they build up over time from small issues that go unnoticed. A clogged filter, a loose connection, low refrigerant, or a worn component can turn into an expensive repair or a full system failure if left unchecked.
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Regular maintenance keeps your system running the way it should. It's the difference between catching a $50 problem in the fall and facing a $2,000 repair in the middle of a Colorado winter.
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At Chestnut Mechanical, our tune-ups are thorough, honest, and done by people who treat your home the way they'd want their own treated. We service all brands and all equipment types — furnaces, air conditioners, heat pumps, and mini-splits.
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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's Included in a Chestnut Mechanical Tune-Up
Fall Heating Tune-Up
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Inspect and clean heat exchanger
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Check and test ignition system
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Inspect burners and flame sensor
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Check refrigerant levels (heat pumps)
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Inspect and clean blower motor
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Check all electrical connections
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Test thermostat calibration
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Inspect flue and venting (gas systems)
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Replace or inspect air filter
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Check for carbon monoxide concerns
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Full system test run
Spring Cooling Tune-Up
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Inspect and clean condenser coils
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Check refrigerant levels and leaks
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Inspect and clean condensate drain
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Check and tighten electrical connections
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Inspect capacitors, contactor, and motor
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Lubricate moving parts
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Check thermostat calibration
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Replace or inspect air filter
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Full system test run
Why Northern Colorado Homeowners Trust
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
Serving Frederick, CO and All of Northern Colorado
We proudly serve homeowners and businesses throughout:
Frederick • Firestone • Erie • Dacono • Longmont • Brighton • Mead • Louisville • Lafayette • Boulder • Westminster • Broomfield • Thornton • Fort Lupton • Johnstown
HVAC Maintenance FAQs
How often should I change my air filter?
We recommend checking your air filter every 30 days and replacing it every 1–3 months depending on your home. If you have pets, allergies, or live in a dusty area, change it closer to every month. A clogged filter makes your system work harder, raises your energy bill, and can lead to premature equipment failure. It's the single easiest thing you can do to protect your HVAC system between tune-ups.
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How often should I get my HVAC system tuned up?​
Twice a year is ideal — once in the fall for heating and once in the spring for cooling. At minimum, once a year keeps your system in good shape and helps catch problems before they become expensive.
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Do you service all HVAC brands?
Yes — we service all makes and models including Carrier, Trane, Lennox, Rheem, Goodman, and more. If it heats or cools your home, we can work on it.
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What if you find something wrong during the tune-up?
We'll let you know exactly what we found and give you a clear, upfront estimate for any recommended repairs. We never pressure you into work you don't need — if it's not urgent, we'll tell you that too.
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How long does a tune-up take?
Most tune-ups take 45 minutes to an hour depending on the system. We'll give you a time window and show up when we say we will.
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My system seems to be running fine — do I still need a tune-up?
Many HVAC issues develop silently — refrigerant leaks, cracked heat exchangers, and electrical problems often show no symptoms until they cause a failure. A tune-up catches these early, before they become emergencies.
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What is the Comfort Plan?
Our Comfort Plan is an annual maintenance agreement that covers 2 tune-up visits per year — one in the spring and one in the fall. Members also get priority scheduling and 10% off any repairs. Plans start at $169/year for a single system