About Us

An Experienced Heating Contractor Repair of Home Heating and Air Conditioning systems

Heating and Air Conditioning service sales & replacement is what we do. Our Goal is to be the Heating Contractor you will recommend to family and friends. I am blessed to be able to live near Parker, CO and serve Parker, Elizabeth, Castle Rock, Highlands Ranch, Lonetree, Castle Pines, Centennial and surrounding areas. We serve the south metro areas in Douglas County, Elbert County and Arapahoe County. Call us for Repair maintenance or new equipment you can feel comfortable with our nearly three decades of experience in home comfort solutions and our goal of being dedicated to keeping your home comfortable healthy and safe. We are licensed, insured and NATE certified and are fortunate to have a great team of skilled techs to service, repair or replace your furnace or air conditioner. We also work on light refrigeration equipment and chillers. Maintenance for spring and fall is available we do comprehensive service or basic cleaning of your HVAC system. 

Meet the Business Owner

My name is Glenn Onken, I started in the heating & air conditioning Industry in 1996, was fortunate to have a group of highly skilled tradesmen help me learn the first 8 years of my career. I have always worked for customer service oriented companies and now bring this knowledge to your home in my own HVAC contractor Company. I have served as leadership in several growing service departments and also have installed, designed  and fabricated many custom HVAC systems in thousands of homes and businesses. Refrigeration systems and commercial RTU systems are also items we can maintain repair and replace. OMS Inc can maintain, improve, rebuild or replace anything you have in your home, office or business. Thank you for taking time to check us out, have a great day!

Heating and Air Conditioning Contractor serving  Castle Rock, CO  Parker, CO  and Elizabeth, CO