We returned to this company after living out of state for a number of years. The service is friendly and efficient. Nick kept in touch because he was running late--much appreciated! He also explained things and, in general, was very professional. We look forward…

Glenbrook Heating & Air Conditioning has serviced our home for almost 20 years. Prompt, professional, and reasonably priced, they provide the perfect hat trick to meet all our heating and AC needs. On top of that the entire Glenbrook Heating & Air Conditioning team…

Dominick came at the scheduled time and was very efficient, thorough and professional in servicing my central air conditioning unit.

Glenbrook consistently provides top service in the annual checkups. The main office is also responsive and helpful. We’re glad we decided to get our furnace and air conditioner from them three years ago.

I've purchased both HVAC & AC units and now a sump pump from Glenbrook Heating & Air Conditioning. They have been incredibly fair, honest, personable, & professional both installing my new equipment and servicing my past equipment. I would recommend them to anyone that…

The office response was quick. Nick T, the service tech could not have been better. On time, diagnosed the problem, explained everything. Excellent

We've been using Glenbrook Heating for at least 25 years. They are always on time, thorough and focused on saving us money where possible. Their prices are very reasonable.

Knowledgable technicians, terrific, efficient service! Nick also educated me about what I could do to improve air flow in my house. I appreciated the advice!

Brad is very courteous and friendly. He was on time and does a great job with keeping our heating and air conditioning units in excellent condition. During this cold winter, we were very comfortable. The entire team at Glenbrook is very helpful. We have…

They called to let me know they were on their way, arrived on time, did the job quickly and neatly, and the service person was very pleasant.

We first moved to Northbrook in 1973 and Glen Brook heating has serviced us ever since. . . It was and still is a family run business which treats their customers with good quality service and fair prices. We would not have stayed with…

The office response was quick. Nick T, the service tech could not have been better. On time, diagnosed the problem, explained everything. Excellent

Last November Glenbrook replaced our furnace and did a great job. This week they finished the job by adding a new A/C. Dominick did a great job, he explained what he was doing and why. The job was completed quickly, and was well done.…

Dom was courteous and helpful with our issue. We appreciate the prompt service today. Our furnace went out this morning and we have heat again by this afternoon!

Dom came yesterday for our furnace tune up, did a wonderful job as usual. Have used Glenbrook Heating and Air Conditioning for 40 years for all our our heating and cooling needs, great company.

I have been a customer of Glenbrook Heating & Air Conditioning for 30+ years. The company and their employees are professional and friendly.

We’ve been customers for a very long time and we have nothing but good things to say about Glenbrook heating & air conditioning . They are reliable, reasonable, & most of all honest.

It all went quite well. Nick and Brian were great. We have used Glenbrook Heating and Air Conditioning for over 40 years and will continue to recommend them.

High quality accurate service; listen to and work with customer; professional; committed to providing high quality customer service.

Jill,

Glenbrook Heating & AC is great. I really enjoy working with Jill, and the technicians - Dominick and Nick are the two I have worked with -- are always prompt, thorough, and answer my many questions. Keep up the great work.

Brian,

A huge thank you for coming out in a short notice Brian was professional and service was outstanding you save us from scorching temps we really appreciate you!!!

Dear Brad,

This is to thank you for your quick installation of my new water heater. It means a lot to me. You and your dad should be commended for your prompt and business-like way of conducting your business. I made the initial call to Fred…

Fred and Brad,

Thank you so much for your prompt attention.

Dear Brad,

Thank you for the beautiful job you did in the basement! I really appreciate the thoroughness and care by which you put the whole thing together! It is always a pleasure to do business with you and your dad. Please send regards to him.…

Dear Fred and Brad,

Thank you very much for your fast response to my air conditioning problem. Brad was a genius—in a very short time he identified the problem, corrected it, and was on his way. I appreciate your service and fine work.

Brad,

Thanks for stopping over on Saturday to check by boiler during the deep freeze. You’re the best!

Fred, Brad and Jill,

Thank you for such wonderful service. You all have been so helpful. The installation was flawless and we love how well the furnace works. What a difference! See you in the spring for our annual cleaning.

Dear Brad,

Thank you for a job well done. See you in the winter.

Dear Brad,

Thanks so much for your prompt service. I really appreciate it.

Thank you for the quick service.

Thank you Brad for your tidy job of putting in the humidifier.