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Better Indoor Air Quality - Proven to Kill Viruses

Ecobee Smart Thermostat with Voice Control

Register Booster Fan Systems

We are the leaders in furnace and boiler repair and maintenance in Centennial, Highlands Ranch, Parker & Englewood.

The best way to prevent costly furnace repairs is to keep your equipment properly maintained. You can’t predict a furnace repair any more that you can predict Colorado weather. Our 75+ years of experience has taught us that you can expect your furnace to have an issue at the worst possible times: winter holidays, family get togethers,  or just about anytime the temperatures are plummeting.

Van Genderen is a family owned business that has been service the Denver Metro area since 1946. Our technicians have 5 years to 25 years industry experience and hold HVAC, Boiler, Refrigeration Licenses in the cities we service.  Van Genderen is a local company you can trust and we strive to make our customers satisfied. We have held an A+ Rating with the Denver Better Business Bureau for over 20 years.

Take time to look up our 5 Star Google Reviews and top reviews on Yelp, Nextdoor & Angies List.

Coupon Code

Mention the coupon code “Web 10” to receive $10 off any service.
Not to be applied with any other offer

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Our Lennox furnace stopped working in the middle of the night and Janel and her team were able to schedule an appointment right away. Our technician (Dave) was very helpful and timely and he was able to get our furnace up and running again in roughly one hour.
Eric Strassburger
Eric Strassburger
Timely, professional and honest. Dave & Janel were great, start to finish.
Michael Snow
Michael Snow
Why 5 stars? Because they didn't have to come out. I called because my AC was blowing hot. Never a good thing on a 95° day. The two other companies I called weren't going to be able to come out to diagnose the problem for at least 4 days. I was expecting the same when I called Van Genderen, but no, they would be able to come out the following day. Wow, awesome! But, the best part is still to come. As they were diagnosing my issue, they suggested a few fixes and said that if any of them worked to call them back and they would cancel the appointment. Well, their suggestion worked and they canceled without any questions. Now that's what I call service. Definitely calling next time I need a service.
Stuart Jones
Stuart Jones
Same day service, professional, no added or hidden fees.
GREAT Service! Van Genderen has been a huge help! After having my boiler issue looked at by 2 other companies, these guys were able to fix the issue in 30 mins! HIGHLY RECOMMEND!!
Nick Brennan
Nick Brennan
Prompt, professional heater service, but be prepared to pay for it. Labor rate is quite high at $168 per hour, and they marked up the parts about 200% over what you can get at local stores and online. Same-day repair of a broken heater in the middle of January might be worth the extra $$, though.
Scott Thomas
Scott Thomas
So nice to finally have found a company who knows how to work on boilers. We were having an issue with our boiler that other places were clueless on, yet still charged us. Brad at Van Genderen got our boiler running smoothly and addressed any issues that popped up with no problem or hesitation. Definitely will be using these guys in the future.
John Thomas
John Thomas
The day before Christmas Eve 2020, and what do our wandering eyes find in the bloody, frozen morning? That the doggone Furnace has FAILED. Epic Failure..... But, Van Genderen had left a sticker in place on our furnace (from previous owners several years prior), and low and behold - ANSWERED our CALL! BTW, several other providers were called first (our neighborhood directory had a couple others listed - which DIDN'T Answer their phones). So in short, Dave Owens - our service tech- arrived within thirty minutes of our call, and diagnosed and repaired our problem within 30 minutes. Dave was not only very professional, but also personable, and knowledgeable, and taught a couple Air Force Aircraft Mechanics a thing or two about HVAC :). We could not be happier, or warmer right now.... just before Christmas Eve. Thank you SO MUCH! Thank goodness for great customer service and knowledgeable technicians at Van Genderen. AND.....a FOLLOW UP CALL from Customer Service to ensure we were 100% satisfied....WHICH WE ARE! We highly recommend both Dave Owens and Van Genderen. Thanks for listening :).
We had a great experience with Brad performing maintenance on our steam boiler. Brad did a great job on the work, explaining what he was doing and why he was performing each part of the work. Our new home is our first experience with steam heat, so his explanations were very helpful!
Eric Pagels
Eric Pagels
Bryant Authorized for AC Repair

Customers love us!

From start to finish, my experience with Van Genderen was very pleasant. Professional, honest and dependable…


AC Repair News

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We have been serving your community for over 75 years!

Van Genderen provides heating & air conditioning installation, service and repair in the following areas:
Centennial, Denver, Englewood, Littleton, Parker, Lakewood, Castle Pines, Aurora, Highlands Ranch, Lone Tree, Castle Rock

HVAC Services

Furnace Installation & Repair

Van Genderen repairs all brands of Furnaces. We install Bryant Energy Efficient Furnaces.

Ductless Air Conditioning Installation

We repair & service Ductless Systems which are a smart choice for energy efficiency and quiet performance, with many styles of indoor units to complement any décor.

Boiler System Installation & Repair

Van Genderen excels at boiler systems and installs LAARS & Triangle Tube Systems.

Humidifier Installation & Repair

Van Genderen recommends that you install a Whole-House Humidifier to help you add moisture to the air, keeping static, sore throats, and dry skin at bay.

Air Conditioning Installation & Repair

Van Genderen repairs all brands of Air Conditioners. We install Bryant Energy Efficient A/C’s.

Indoor Air Quality Installation & Repair

To improve indoor air quality and remove unwanted air particles and allergens from the air, we install whole-home air filtration systems & air purification systems.

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