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Thornton Heating Service, Inc.

When the Weather’s at its Worst. We’re at our Best.

847-905-1608

Emergency Hours: 24/7

When the Weather’s at its Worst. We’re at our Best.

Testimonials & Reviews

See What Our Customers Are Saying

Our goal is 100% customer satisfaction, and it drives everything we do. Our “customer first” attitude is evident in everything we do.

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“It was then that I knew I’d be a customer for life.”
“I trust their judgment and rely on them for all my heating and cooling needs.”

For Steven, his faith in Thornton Heating Services was solidified on a nasty Chicago winter day many years ago. As a property owner of an apartment building with a down boiler heating system that was more than 85 years old, he called upon Fred Starck, the owner of Thornton Heating Services, to help him out on an emergency.” He got up there in the middle of winter and worked his tail off to find an ancient replacement part and get this old boiler working again,” says Steven. “He dropped everything to help me out and did what was necessary. It was then that I knew I’d be a customer for life.” Although Steven’s story is unique, it exemplifies the commitment to customers Thornton Heating Services aims to achieve every day. For nearly 15 years, Steven has relied on Thornton for new installations, upgrades and service contracts. With multiple properties and several system installations, he’s grown to trust Thornton for all his needs.
“Fred is extremely intelligent and thoughtful, and always comes up with sensible solutions and diagnoses problems very, very well,” says Steven. “Nick is an extremely capable and honest service technician, and the service department is superb. Bottom line, I trust their judgment and rely on them for all my heating cooling needs.”
Male Customer

"I feel like I can put that part of my home in their hands. It's a comfortable feeling."

Since her home was built in 1997, Joanne has enjoyed the experience of working with a trusted vendor on the Thornton team.

“They’ve always been very responsive and, if there are problems, they come quickly. Through the year, there have been very few problems, but I know I can depend on them anytime.” Joanne says. “When there is a problem, they take care of it quickly, best of all everybody at Thornton is pleasant and takes the time to explain everything to me. The communication has always been excellent and I’ve had nothing other than positive experiences

Recommended by her architect when the home was originally built, she has relied on Thornton through the years for maintaining her home comfort system, as well as servicing the heating for their indoor pool.

“For me, sticking with Thornton has been a matter of trust. They know what they’re doing, and they’ve been doing it for a long time. That’s good enough for me

Female Customer

"It was done correctly and that's really important. They don't cut corners."

Adrienne and her husband wanted the very best for their large new home in Lake Forest. They turned to the Thornton team for all their needs, which included a new installation of a fairly large heating, cooling and humidification system and more. In addition, new ductwork and other renovations had to be done in order for the system to work properly.
“All the technicians I’ve worked with were responsive and hard working, plus they always tried to keep my costs down. I’d recommend them to anyone,” says Adrienne. “Once we started the project, we found there was some duct work not properly installed and some other challenges that would make it hard for temperatures to remain consistent throughout the home. They did what had to be done on the spot and kept the project going.”
It was a major project, and Adrienne and her husband were concerned with both cost and quality. The Thornton team made sure all the bases were covered in the most cost-effective, yet high-quality way. The result was a state-of-the-art comfort system that would be much more energy-efficient than what they had previously.
“It’s what we anticipated spending, but we got more than we expected in terms of quality and services from the people at Thornton.”
Happy Couple

"Nick was honest. He knew exactly what we needed and didn't try and sell us anything more."

Choosing a back-up generator can be a complex undertaking. But when Darlene and her husband chose Thornton, it became a lot simpler. Thornton’s resident generator expert and technician, Nick, guided them through the many options, assessed their needs, and recommended a dependable, straightforward solution that was also cost-effective.
“They didn’t try to sell us an elaborate system. Nick was very good at helping us make the best selection that was right for our home,” says Darlene. “Best of all, Nick was so easy to work with and great to talk to. We felt like we were having a friend over. The kids and even our family dog loved having him over.”
Besides enjoying Nick’s company, the family now has the security and peace of mind of always having back-up power when they need it most during an outage, especially during Bears games: “It actually kicked in when we had a power outage during a game. We were very thankful we had it then.”
Happy Family

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