Thermo-Tech Windows & Doors
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Every home is different. That's why Thermo-Fit Premium Replacement Windows are built to order and custom fit to your needs. Thermo-Tech French Style and Slim Line Style Patio Doors are engineered for superior performance, durability and energy efficiency. At Thermo-Tech Premium Windows and Doors, we build in more quality, so homeowners can expect more energy savings, more beauty and more comfort.

Thermo-Tech offers vinyl windows and doors in a wide array of standard sizes that make new construction a breeze. Or we can build replacement windows or doors for nearly any replacement project. In the several years that Avalon Homes has used Thermo-Tech Windows, we have seen a large change in both the product and service part of the building process.
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Thermo-Tech product specifications are available free for viewing and downloading in popular word processing formats. An exceptional value, Thermo-Tech slider windows combine both performance and price appeal. Sliding windows are available in either 2-lite or 3-lite configurations. Precisely engineered, Thermo-Tech casement window systems ensure a tight, energy-efficient seal from top to bottom using multi-point locks.
Thermo-Tech Premium Windows and Doors welcomes dealers who appreciate smart engineering, sensible style and lasting quality. That's the value our products bring to your business. We've created a section of the website just for dealers to learn more about Thermo-Tech or to even arrange for orders online.
Thermo-Tech dealers are ready to help you with every phase of your next window or door project. With extensive knowledge and experience as well as support from Thermo-Tech, you can be certain that you receive the best possible service and support with your vinyl window and door needs. Use our dealer locator to connect with a Thermo-Tech dealer in your area.
Remodelers, contractors and builders trust Thermo-Tech Premium Windows and Doors for our exacting standards and timely delivery. Thermo-Tech manufactures vinyl windows in a wide array of standard sizes that make new construction projects a breeze. Or we can build to your specifications. Thermo-Tech custom replacement windows and accessories are always the right fit for any replacement window project.
Thermo-Fit Premium Replacement Windows from Thermo-Tech are expertly designed and manufactured to provide cost-saving energy efficiency, exceptional safety and security, and greater comfort and beauty all year long. Thermo-Fit windows are manufactured with strong, premium-grade materials that help keep the weather outside and comfort inside.
Reviews (8)
Rick Lee
Rick Lee
Nov 03, 2021
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The installers were fabulous. In and out really promptly and didn't leave a trace. Very satisfied with the whole process.
Justin Reller
Justin Reller
Jul 31, 2021
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I work here. It's not a hard job if you are willing to show up on time and participate.
Wes Gh
Wes Gh
Mar 15, 2021
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Recieving dept is actually on 39th Ave NE.. fast friendly service.. Great place to bring freight to..
Kelly Brehm
Kelly Brehm
Dec 27, 2020
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Buyer beware. We recently replaced our patio doors with ThermoTech. We researched brands and decided to go with them as our local lumbar company recommended them and their customer service. Their price was good so we thought we'd try it. NO, no no no. One of our doors came warped but we didn't realize it until after it was installed. That was in July. We do understand the delay due to covid, but no one has communicated with us or cared about the fact that our warped patio door is only partially installed and not insulated. Someone came out to review the warped door, to see if it could be serviced
Mr. Giraffe
Mr. Giraffe
Dec 14, 2020
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Went with thermotech Windows and patio doors for new house. So far no complaints after 4 years.
Greg Steger
Greg Steger
Sep 10, 2020
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I have sold and installed these windows in many homes in northernMichigan. No problems no complaints. I have them in my home allwith366 glass. Great windows. Nice company to do business with.
Bill Goepferd
Bill Goepferd
Aug 07, 2020
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Called this morning to order a replacement part on my casement window that I broke while cleaning my windows. Pam in the order department was excellent and was able to help me and offered to mail the part to me at no cost under warranty. Couldn't be happier.
Guest Guest
Guest Guest
Aug 12, 2019
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Shoddy craftsmanship. Sliding mechanisms require you to lift the entire window with both hands to open, they do not slide. Screens all arrived with gaps in all 4 corners, and most of our brand new window frames came scuffed or scratched out of the box. Customer service response was that it would be at least a month before anyone could even come look at our poorly manufactured windows and doors. Unacceptable products and unacceptable customer service. If Wal Mart sold windows, they would be better than these. Don't waste your money with Thermo Tech, buy a quality product instead.