KJ Thomas Mechanical has certified technicians to take care of your Furnace installation near Louisville CO.
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KJ Thomas Mechanical is your qualified Furnace expert in Boulder, Longmont, Erie, Lafayette, Louisville and surrounding areas!

KJ Thomas Mechanical is your qualified Furnace expert in Boulder, Longmont, Erie, Lafayette, Louisville and surrounding areas!

 
Whether you need service—and need it fast—or you're looking to replace or invest in new equipment for your home, KJ Thomas Mechanical can help. Ask around... our name is well known and respected because we care about impressing you so much that you'll want to call us next time and every time.

Browse our site and you will find plenty of information to help you understand your systems, and you will also learn what you as a home or small business owner can do to keep your systems maintained and operating as efficiently as possible.Experiencing temperature, humidity or allergy related problems? There is no need to suffer. Let us explain how these problems can be resolved, making your home or office more comfortable.

We are proud of our reputation for quality work and our legacy of satisfied customers. We are diligent in our hiring and ongoing training, cultivating a team of true craftsmen who are not only highly skilled, but a pleasure to have in your home. We will walk you through our process, answer your questions, and help you attain the highest return on your investment.
WHY CHOOSE US
WHY CHOOSE US
We offer the very best when it comes to ensuring your equipment operates safely. We will help you save money on your fuel bills and then some. If that's something that interests you, then click here.
TAKE A LOOK AROUND
TAKE A LOOK AROUND
Go ahead! Explore our Info section in the menu. Not only will you learn how these HVAC systems work, but also how to shop smart, protect your investment and keep more money in your pocket.
100% SATISFACTION
100% SATISFACTION
KJ Thomas Mechanical offers financing and we guarantee our work, making the decision to choose us both comfortable and secure. So don't hesitate and give us a call today at 303-435-8141
By doing what it takes to ensure each customer's complete satisfaction, KJ Thomas Mechanical is welcome in more homes in 30 mile radius of Boulder CO than any other contractor.
Trane Furnace service in Louisville CO is our speciality.
KJ Thomas Mechanical is Your Trusted Local Trane Dealer
Get your Trane Furnace units service done in Boulder CO by KJ Thomas Mechanical
KJ Thomas Mechanical proudly donates HVAC services to Habitat for Humanity of the St. Vrain Valley in Colorado
Proudly donating HVAC services to Habitat for Humanity of the St. Vrain Valley in Colorado

KJ Thomas Mechanical is a Colorado (CO) heating, cooling, air conditioning, water heater, and furnace service and maintenance company located in Boulder County. KJ Thomas Mechanical employs only the best technicians to replace or repair your air conditioner, furnace, water heater, boiler, or ductless air conditioning system. We’re proud to serve residents of Boulder CO, Louisville CO, Eldorado Springs CO, Broomfield CO, Lafayette CO, Niwot CO, Erie CO, Thornton CO, Longmont CO, Hygiene CO, Dacono CO, Frederick CO, Firestone CO, Mead CO, Lyons CO, Englewood CO, Berthoud CO, and Superior CO. KJ Thomas Mechanical services all furnace, AC, humidifier, thermostat and water heater brands including Carrier, Bryant, Payne, Trane, Lennox, Rheem, Ruud, Amana, Daikin, Mitsubishi, Fujitsu, Crown, Frigidaire, Gibson, Goodman, Lochinvar, Maytag, Weil McLain, AO Smith, Kohler, American Standard, General, Aprilaire, Honeywell, White Rodgers, Dynamic and Skuttle.

If you’re looking for a good heating and air conditioning service company near you, you’ve come to the right place. To get a repair, service, or replacement estimate call 303-435-8141.

(CO) heating, cooling, air conditioning, water heater, and furnace service and maintenance company located in Boulder County. KJ Thomas Mechanical employs only the best technicians to replace and repair your air conditioner, furnace, water heater, boiler, or ductless air conditioning system. We’re proud to serve residents of the Boulder CO, Louisville CO, Eldorado Springs CO, Broomfield CO, Lafayette CO, Niwot CO, Erie CO, Thornton CO, Longmont CO, Hygiene CO, Dacono CO, Frederick CO, Firestone CO, Mead CO, Lyons CO, Englewood CO, Berthoud CO, and Superior CO. If you’re looking to find a good heating and air conditioning service company near you, you’ve come to the right place. To get a repair, service, or replacement estimate call 303-435-8141. KJ Thomas Mechanical services all furnace, AC, humidifier, thermostat and water heater brands including Carrier, Bryant, Payne, Trane, Lennox, Rheem, Ruud, Amana, Daikin, Mitsubishi, Fujitsu, Crown, Frigidaire, Gibson, Goodman, Lochinvar, Maytag, Weil McLain, AO Smith, Kohler, American Standard, General, Aprilaire, Honeywell, White Rodgers, Dynamic and Skuttle.
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Get In Touch
 
Expert Service from People You Can Trust
6175 Trevarton Dr. Longmont, CO 80503
Not Open to Walk-in Traffic
PHONE:   303-435-8141
HOURS:   Monday - Friday: 8AM to 5PM
Expert Service from People You Can Trust
6175 Trevarton Dr. Longmont, CO 80503
Not Open to Walk-in Traffic
HOURS:   Monday - Friday: 8AM to 5PM
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For Furnace repair service in Boulder CO, find us on Google!
To schedule your Boiler installation in Longmont CO, just email us!
 
Payment Options
 
For Furnace in Boulder CO, we accept most major credit cards.
 
We accept cash for Water Heater repair service provided in Longmont CO.
We accept check for Boiler repair service provided in Louisville CO.
 
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