My water heater started to go out right before I was headed for vacation. I called KJ Thomas Mechanical with my predicament and they worked with me to get a new water heater installed before I left. What a relief! I appreciated their willingness to work with me.
★★★★★
--Elizabeth • Longmont, CO
11/18/2018
Thank you for fixing my air conditioner over the summer and now inspecting and cleaning my furnace! Logan was on time, professional and gladly explained the service to me. Highly recommend KJThomas Mechanical!
★★★★★
--Jenny • Longmont, CO
11/7/2018
Quick Reasonable Knowledgeable - thank you for solving the problem we were having with our furnace. It is nice to have a reliable service in our area. Thank you!
★★★★★
--Brouns • Boulder, CO
10/28/2018
Easy to contact. Return calls promptly. Easy to work with.
★★★★★
--Lisa • Longmont, CO
10/20/2018
Logan located the problem and took care of it effectively. He also had good ideas to keep this issue from reoccurring .
★★★★★
--Davis • Longmont, CO
9/13/2018
New boiler installed promptly with great customer service in ordering and installation.
★★★★★
--Howard • Boulder, CO
9/7/2018
Karl and his staff are very communicative and trustworthy.
★★★★★
--Dami • Longmont, CO
8/10/2018
Logan was great! Courteous, efficient, respectful of my home. Explained the situation with my AC and fixed it quickly. Ann was very willing to get me scheduled for a visit in a timely manner during a stretch of hot weather.. Will call KJT for my future needs.
★★★★★
--Nancy • Arvada, CO
6/22/2018
These guys were great. The most affordable and reasonable price combined with great service. They installed central air conditioning in my home. They showed up on time and were neat and polite. I highly recommend them!
★★★★★
--Karen • Longmont, CO
6/12/2018
"KJ Thomas Mechanical has, for over 20 years provided the utmost quality and service. As a contractor, I know that the workmanship meets or exceeds all current building codes."
★★★★★
--Rick • Boulder, CO
6/9/2018
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 email us.
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 than any other contractor.
KJ Thomas Mechanical is Your Trusted Local Trane Dealer
Proudly donating HVAC services to Habitat for Humanity of the St. Vrain Valley in Colorado
KJ Thomas Mechanical is a full-service HVAC company. When it comes to dispatching a technician for your furnace, AC, heat pump, boiler, or mini-split repair or replacement, we only send the best. We proudly service Boulder, Longmont, Louisville, and the surrounding areas. So, when you ask Google for a “good heating or AC company near me” you know you’ve come to the right place. To get a quote on your furnace or boiler repair, call 303-435-8141. KJ Thomas services all major HVAC brands brands including Coleman, Carrier, Bryant, Trane, Lennox, Rheem, Ruud, York, and American Standard.
KJ Thomas Mechanical is a full-service HVAC company. When it comes to dispatching a technician for your furnace, AC, heat pump, boiler, or mini-split repair or replacement, we only send the best. We proudly service Boulder, Longmont, Louisville, and the surrounding areas. So, when you ask Google for a “good heating or AC company near me” you know you’ve come to the right place. To get a quote on your furnace or boiler repair, call 303-435-8141. KJ Thomas services all major HVAC brands brands including Coleman, Carrier, Bryant, Trane, Lennox, Rheem, Ruud, York, and American Standard.
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