6 days ago
Very attentive and sharp looking wimdows
- Rebekah H
a year ago
We needed to replace 6 windows in our home. Stopped by American Thermal Windows and talked to Iver Jr., made an appointment for him to come out and give us an estimate. He recommended Great Lakes eco Smart windows. Love Love Love them. The process was seamless, couldn't have found a BETTER company to work with. My wife and I like to work with Family owned neighborhood businesses and this one is a Gem!!!! Stan and Jerry were the installers they were Fantastic. Very Professional installation. I cannot say this enough about how neat and clean they were. We are so happy with the windows. They make you feel like a family member. I would HIGHLY RECOMMEND American Thermal Windows!!!!!!!!!
- Mike O
2 years ago
We looked around at a lot of places, and this was by far the best service we received. They are friendly and knowledgeable, and very honest about providing the right product at the right price rather than up-selling or pushing name brands. While the location offered a good selection of models to view, the best part of the experience was the in-home estimate. They took the time to really understand our needs, and make sure we had our options explained. Best yet, we sat down and did the quote right on the spot so that they left with me knowing exactly what it would cost, and when we could expect delivery and installation. This is the way service should be.
- Jonathan D

About us

American Thermal Window Products, Inc. is a family-owned and family-run business. Established in 1981, we began as a part-time operation by Iver Johnson Sr., a retired police officer of 31 years with the Chicago Police Department. 

With our showroom conveniently located at the intersection of Milwaukee and Central Ave. in the heart of the northwest side, American Thermal has served the entire Chicagoland area since its beginnings. This location offers displays of many different types of windows and doors, which include bay windows, bow windows, double hung windows, casements, garden windows, storm doors, replacement doors, etc. We also offer many services, which include full window and door installation and replacement, vinyl siding, gutters, soffits, and fascias as well as glass block windows. 

At American Thermal, we believe in giving each of our customers the personal attention he or she deserves. As a member of the Professional Remodelers Association, we strive to give you “top-notch” service with our own experienced carpenters and also the highest quality products from nationally recognized companies such as: Pella; Marvin Windows & Doors; SilverLine Windows & Doors, an Andersen Company; Great Lakes Window; Albany Door Systems; Larson Manufacturing; James Hardie; and Alside. We are also proud members of the Better Business Bureau.

Contact Us


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  • (773) 774-3131


Get directions
5304 N Milwaukee Ave, Chicago, Il 60630
Chicago, IL 60630
United States

Business Hours

Mon:8:00 AM – 5:00 PM
Tue:8:00 AM – 5:00 PM
Wed:8:00 AM – 5:00 PM
Thu:8:00 AM – 5:00 PM
Fri:8:00 AM – 5:00 PM
Sat:9:00 AM – 4:00 PM
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