Why Doornbos Heating & Air Conditioning?


Home of 100% NATE Certified Technicians*

We have the most capable work force in the industry. You are guaranteed to work with a knowledgeable and experienced NATE certified technician.

  • NATE Certified Installation Technicians
  • NATE Certified Repair Technicians
  • NATE Certified Maintenance Technicians
  • NATE Certified Management Team

* any new employee is either NATE Certified or has passed a pre-qualification exam awaiting NATE Testing

American Made Products

  • We recommend Amana, Trane, Dunkirk and Utica products- all made in the USA.
  • Accessory materials are architectural grade. We DO NOT use foreign pipe or sheet metal.

Quality Installations with the Best Warranties

  • 20 year workmanship guarantee
  • Life time heat exchanger and compressor warranty*
  • Factory supported 10 year parts and labor warranty*
  • Original manufacturer parts. We do not use after market parts or seconds for warranty work.

24 Hour Emergency Service

  • 2 hour response time

Always Speak Live to a Member of our Experienced Staff

  • Our office team has an average of 27 years experience
  • No answering machines or voice messaging for emergency service

88 Year History of Exceptional Service

  • Family owned and quality driven
  • All of our work is guaranteed
  • We are knowledgeable, trustworthy and proven
  • We provide the most advanced technology, ongoing training, support and procedures to our technicians
  • Safety is our first priority
  • Long history of good business

10 Things to Expect with Doornbos

  1. We’ll go over the details of the actual installation with you in person before we start the work.
  2. We keep our vehicles in top shape. You won’t be hearing a loud muffler or finding an oil leak on your driveway.
  3. We’ll cover the floors and interior areas of your home/business. We take great care not to disturb the furniture or track debris.
  4. We have complete liability and comprehensive insurance coverage.
  5. Our professional licenses, including electrical, will be current and the technicians who work in your home/business will be fully bonded.
  6. We have a no-tobacco, drug and alcohol-free policy in our company.
  7. We’ll be planning your job carefully to ensure that your water, heat and electricity will be off for the shortest possible time, or not off at all.
  8. Don’t be concerned about our people using your telephone. All of our trucks are GPS and cell phone equipped.
  9. We will not use foul language in your home/business. When we’re done working we’ll clean up thoroughly and to your satisfaction.
  10. All in all, we’re going to treat you with the respect you deserve while we’re working in your home/business.

Need HVAC Service?

Contact the experts at Doornbos Heating and Air Conditioning.

Call us at 708-423-9580!

Doornbos Heating and Air Conditioning proudly provides HVAC service to Frankfort, Homer Glen, Mokena, Mount Greenwood, Oak Lawn, Orland Park, Palos Heights, Palos Park, Tinley Park, and the surrounding communities. Visit our service area page for more coverage details, call us at 708-423-9580, or request service online today.