Avalanche offers quality furnace repair, installation and maintenance to keep you warm in the winter months.

Keep your HVAC systems, furnace, air conditioner, and air ducts in great condition courtesy of Avalanche Home Systems in Castle Rock, CO.


Fall Special: $79 Furnace Clean and Check! Make sure you are ready for winter before it's too late!

  Call Today!     303-736-8151

For all your Castle Rock HVAC and Duct Cleaning Needs

Avalanche Home Systems offers comprehensive HVAC repair, installation, and maintenance. We service furnaces, air conditioners, swamp coolers, and all heating and cooling systems. We also install necessary accessories such as humidifiers, thermostats, and electronic air cleaners. 

In addition to HVAC, we also provide air duct cleaning. For duct cleaning, we seal off all vents and use a Nikro duct cleaning vacuum to suck out all of the dust and debris that get built up over the years, thereby ensuring that the air you breathe is as clean as possible and free from allergens or bad odors. As an added bonus, if you let us install any full heating and air conditioning system, you’ll receive a free duct cleaning or humidifier install. Read this EPA article about the importance of HVAC repair and maintenance.

As a family-run small business, we strive to treat you with the same loyalty and respect that we treat our own home. Our team takes pride in the way we are able to establish good, long-lasting relationships with our clients. We try to always listen to your concerns, never up-sell you on unnecessary services, and ensure that you remain satisfied with the work long after we are gone. We take pride in our service, and have been given an A+ Rating by the Better Business Bureau.

Interested in our services? Call us at (303) 736-8151 to talk to a professional.

Why Choose Us

Our company was included in the Castle Rock's Best of the Best 2013 and 2018 awards, and we carry 5 star rating on Yelp, a 5 star rating on Home Advisors, and a 4.8 star rating on Google Businesses. We believe that this is mainly because we treat our clients with utmost respect and honesty, and care for their homes as if they were our own.


We are always timely and operate
with honesty and integrity.

Excellent Service

We strive to live up
to your expectations.

Quality Equipment

We only use
top-of-the-line machines.

Dedicated Team

Our friendly staff is always ready to answer your questions.