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Gas Furnace Installation in Chicago, IL 60655

“Very professional. Left me feeling confident that my issues were resolved.”

– Mike B.

Gas Furnace Installation in Alsip, IL 60803

“This is my second furnace/AC install by Doornbos in the last 16 years. The installers do quality work. Everyone I have dealt with at Doornbos from the sales to office team are very helpful.”

– Mary G.

Gas Furnace Installation in Chicago, IL 60655

“Everything was very good and timely!”

– MIKE B.

Gas Furnace Replacement in Chicago, IL 60643

“Doornbos always delivery great service!”

– Christina k.

Gas Furnace Repair in Oak Lawn, IL 60453

“Twas 2 nights before Christmas when I sat freezing in my home, when who came to my rescue- not the man in the red, but Mike D from Doornbos Heating, at 8:30PM! Thank you, Mike, for going way beyond, and giving the best Christmas present ever, fixing my furnace!!!!”

– Rosemarie S.

Gas Furnace Repair in Oak Lawn, IL, 60453

“My grandmother’s furnace went out during the sub-zero temperatures and winter storm the night before Christmas Eve. Mike D. from Doornbos came out that evening, after hours, and performed the necessary repairs, not only keeping my grandmother safe and comfortable, but also allowing us all to get together for Christmas. Thanks Mike!”

– Ken B.

Gas Furnace Repair in Oak Lawn, IL, IL 60453

“Loved the care and courtesy I received”

– Mary Kay G.

Gas Furnace Maintenance in Oak Lawn, IL, IL 60453

“I’ve been a Doornbos customer for 15 yrs. Most recent service completed 5 days ago. D-tech completing the service was Mike D. The Doornbos equipment pricing is competitive, not earth shattering. It’s their tech-customer service that sets them apart from competitors. Mike D. makes Doornbos shine brightly. Mike D. is friendly, professional, honest as well as very knowledgeable. ‘Not sure if they do, but I would hope that the bosses & owners realize the huge asset Mike D. is…to the Doornbos name..ie..company!
Based on years of working with him, Mike D. is absolutely worthy of this 5-star review!!”

– P. J.

Gas Furnace Maintenance in Palos Heights, IL, 60463

“We have used Doornbos for 23 years for our home and 21 more years for our condominium, both of which are in Palos Heights. We always have the expert Doornbos Technicians service our furnace in the fall and our central air conditioner in the spring. For the past nine years, we have used Mike from Doornbos for our annual furnace and air conditioner service. He always does an Outstanding job in examining and diagnosing my furnace and air conditioner. He makes sure they are in excellent operating condition for the season. He expertly diagnoses any problems, and discusses them with me along with any corrective actions to make sure my system is in excellent condition for me to be comfortable for the coldest winter and hottest summer.”

– John F.

Indoor Air Quality Maintenance in Palos Heights, IL, 60463

“I want to express my satisfaction with the service provided by Mike today. My humidifier was not working properly and I was also having difficulty inserting a new furnace filter. Mike fixed those items along with cleaning and preparing my furnace for the winter. He is very knowledgeable and also courteous. Doornbos has been my go to for many years for providing service to my condo. Mike is the serviceman that I always request and will continue to ask for in the future. Thank you.”

– Judy Y.