​​​NATE Certified Heating and Air Conditioning in Parker

​We have worked with everything that's out there. So, rest assured that we have the knowledge to service even the toughest HVAC issues and repairs.
We've also got a skilled set of workers who are knowledgeable about any type of evap cooler you have.
With you and your loved ones in mind, we've started offering different products to help with your home's air quality.​
We have assisted insurance companies with forensic fire investigations to confirm or rule out the involvement of HVAC equipment in a loss claim. Your source for heating and air conditioning in Parker. Furnace and Air conditioner repai

  Heating & Air Conditioning   OMS INC

Designer of Home Comfort solutions - THE ONE YOU WILL RECOMMEND! ​Heating and Air Conditioning Parker     

  NATE Certified Heating and Air Conditioning in Parker - Highlands Ranch - Castle Rock 

Onken Mechanical Service, LLC Reviews


Review by a homeowner in Aurora, CO
Project: Repair or Service a Central Air Conditioning System
This job was to service and certify the furnace and service the AC. He and his assistant were considerate and easy to talk to. Took their shoes off at the door and cleaned up after themselve

Good design brings continuity, function, and beauty to a living or working space, whether it’s a 1000-square-foot loft or a rambling country estate. A typical project includes these services: Repair, Service, Sales, Installation, replacement

Onken Mechanical Service 6/20/2017 
Mark K.
I can't say enough good about Glen! He showed up on time, correctly diagnosed the problem and resolved it right away. I had already dealt with another AC technician who ripped me off and never figured out why my AC didn't work. Glen was very conscientious, answered all my questions, made sure I understood what the problem was, what my repair options were, and fixed the system. After almost 2 weeks without AC, it was wonderful to wake up in a 70 degree house instead of a 79 degree house! He cleaned up everything he touched and left the house like he found it. He called the next day to make sure we were happy. I wouldn't hesitate to recommend his services to anyone. 

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We've got a number of different options to help you with all of your heating & air-conditioning needs and Heating and Air conditioning repair. We've got 20 years of experience to help you determine how to tackle all of your home comfort needs more accurately than other heating and air conditioning companies, Heating and Air conditioning in Parker, Castle Rock and Highlands ranch. Furnace and air conditioner repair and replacement.

OMS Heating & Air Conditioning

Whats the word on Oms Inc.? Here is what some of our customers are saying;

 OMS Inc. Heating and Air Conditioning has been in the business for over 20 years and we've paid enough attention to learn a thing or two over those years. We've even worked hard to  make sure that our NATE Certified tech knows the most up-to-date information about all of your heating and cooling needs. Keeping you Comfortable and Safe is our goal! Furnace and air conditioner repair in Parker and surrounding areas

Our Team