As an essential service provider, we remain open to serve you.
Providing Comfort and Expert Service Since 1927
Over 90 years ago, Fred Doornbos started his heating business. Fred’s philosophy was to do only quality work and the referrals would eventually keep him busy. Fred was right. One job led to another, and today our reputation for quality work continues, as does our philosophy. At Doornbos, it is all about quality workmanship.
We uphold the old-fashioned values which have built lifelong and multigenerational relationships with our customers. At Doornbos, we recognize that honesty, integrity, and personalized attention are as important as expert workmanship and unmatched products.
Our professional standards ensure quality results on every project Doornbos performs. Doornbos guarantees satisfaction.
We are taking extra precautions to protect you during this uncertain time.
Gas Furnace Installation in Oak Lawn, IL 60453
Gas Furnace Installation in Tinley Park, IL 60477
“The two technicians did a fantastic job. Very courteous and professional. Left everything very clean.”
– robert H.
Gas Furnace Maintenance in Homer Glen, IL 60491
“I called after 5pm on a Friday for service on my gas furnace. The dispatcher on the phone was very helpful and seemed delighted to help me with getting someone out to take a look at my issue. I received a phone call from the Tech (George). He was very attentive to listening while I told him what the furnace was doing. I had a very pleasant conversation and George who was willing to come out and take a look at the furnace on a Friday evening. He arrived almost exactly the time he told me he would over the phone (Amazing) . George had great customer skills and was a one of the most positive techs I've met. He was super knowledgeable on everything from the furnace, humidifier, Nest thermostat, and controls. George deserves great recognition for not only a great Tech and knowledge within his job, but also as a person with a great attitude and personality.
Thanks George and Doornbos”
– Ken R.
Gas Furnace Installation in Oak Lawn, IL 60453
“Excellent turnaround. Doornbos provided heaters to help us in the interim to keep the main rooms in the house warm. The installers were very polite and explained to my husband what he needed to know about the furnace, etc. Doornbos is coming back in the Spring to complete the air conditioner installation. We would recommend Doornbos.”
– TOM R.
Gas Furnace Installation in Tinley Park, IL 60477
“The two technicians did a fantastic job. Very courteous and professional. Left everything very clean.”
– robert H.
Gas Furnace Maintenance in Homer Glen, IL 60491
“I called after 5pm on a Friday for service on my gas furnace. The dispatcher on the phone was very helpful and seemed delighted to help me with getting someone out to take a look at my issue. I received a phone call from the Tech (George). He was very attentive to listening while I told him what the furnace was doing. I had a very pleasant conversation and George who was willing to come out and take a look at the furnace on a Friday evening. He arrived almost exactly the time he told me he would over the phone (Amazing) . George had great customer skills and was a one of the most positive techs I've met. He was super knowledgeable on everything from the furnace, humidifier, Nest thermostat, and controls. George deserves great recognition for not only a great Tech and knowledge within his job, but also as a person with a great attitude and personality.
Thanks George and Doornbos”
– Ken R.
OUR PROMISE TO YOU
We promise to maintain our long tradition of excellence by giving you our guarantees of professionalism in service, technology, installation, and people.
SERVICE
Factory-authorized, NATE- and EPA-certified technicians are ready to serve you 24 hours a day, every day.
INSTALLATION
Our quality standards are high and our installers adhere to our long tradition of fine workmanship. We are proud of every job we do.
TECHNOLOGY
Our industry has come a long way since 1927, and we have been on top of it all the way. Our advanced technology in servicing, installing, and testing helps us bring you the best for your money.
PEOPLE
Doornbos employees are knowledgeable, hardworking, good people focused on doing a superior job. We take pride in our work and the company’s reputation for customer satisfaction. Every Doornbos employee has ongoing continuous training to remain on top of our field.
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