Business ProfileWindow Installers in Knoxville, Tennessee
Keith Window Company
Keith Window Company
Keith Window Company provides window, door, screen and custom-glass services in East Tennessee and the Florida Panhandle. It has served homeowners for over 45 years and has made Thermopane glass in-house for over 20 years.
Last Updated October 1, 2026.
Featured Window Installers in Your Area
Compare a few featured businesses in this area.
Business Highlights
- The company describes itself as locally owned.
- It says its service avoids high-pressure sales tactics.
- It lists a lifetime limited transferable warranty for ProVia entry doors.
Service Area
Knoxville, Tennessee, and Destin, Florida, as well as East Tennessee and the Florida Panhandle.
Active Business Listing
Keith Window Company is one of 12 window installers ProsGrade lists in Knoxville, Tennessee.
Active
Public local listing
Listing details
6 services listed, including Window replacement, installation and repair, Door replacement and installation and Screen repair and replacement. Open weekdays, closed on weekends. Rated 4.8 from 203 reviews.
- Verified listing details
- Service information
- Customer review signals
- Photo gallery
- Public contact information
- Published local profile
How This Business Compares
How Keith Window Company compares with the other 11 window installers on ProsGrade in Knoxville, using public Google ratings and review counts.
- One of 10 Knoxville window installers on ProsGrade rated 4.7 or higher from at least 10 reviews.
Services Covered
6 services- Window replacement, installation and repairVinyl replacement windows.
- Door replacement and installationProVia entry doors; sliding, French and folding patio styles; custom-built storm doors.
- Screen repair and replacementCustom sliding screen doors; solar screens.
- Custom shower glassFrameless doors; clear, frosted or patterned glass.
- Glass cutting, furnishing and installationThermopane in any size, thickness or shape.
- Custom mirror cutting and installationCustom sizes; beveled, flat-polished or pencil-polished edges.
Reviews
What customers say
Customers praise clear communication, and one customer said the installers took time to ensure the work was done correctly. A customer whose back door was replaced with a sliding glass door said the installers arrived in the morning and finished around lunch; another was pleased with glass for a tabletop that the owner measured and staff delivered a couple of weeks later. A customer with windows for a room addition liked their noise insulation and UV protection but found the locking mechanism unintuitive, saying it could look locked when it was not.
Customer Reviews
Beth Ann Cale
I wanted to protect my new tabletop and didn’t want to cover it with a table pad, so I called Keith Window about glass. The owner personally came over to measure it, and then Kyle and John delivered it a couple weeks later. It looks fantastic, and I could not be more pleased. I highly recommend Keith Window. Great experience all around.
Trish Griffith
I recently had the pleasure of working with Keith Window and I am pleased with the experience. From my first phone call to final installation, the service was excellent.
The installers were friendly, professional, and took time to ensure that everything was done correctly. Communication was clear and consistent, making everything smooth and stress-free.
I highly recommend Keith Window to anyone looking for quality products and outstanding customer service.
Brett Bolton
My back door was rotting out and had to be replaced. I decided to change it to a sliding glass door. They did a fantastic job and had the best price I got quoted for this job. They showed up morning of and had it done around lunch. Would gladly use them again!
Katia Karkkainen
We got 5 windows from this company for our new room addition. We love the windows, especially noise insulation and UV protection. I wish the locking mechanism was a little more intuitive, because sometime it looks like they are locked, but in reality they are not, so you have to double check twice. However, I would still give it 5 stars, and I also want to spotlight excellent communications with this company.
Lori Turczynski
James Higgins did an awesome job on this shower install. This change really elevated the look and feel all around. Very professional, timely, and communicated every step of the way.
Write a Review
Share your experience with this business. Reviews are moderated before they appear publicly.
Frequently Asked Questions
Does Keith Window Company offer financing?
The company offers financing through Advancial, including a 0% option.
How does Keith Window Company describe its project process?
It describes a process that runs from an initial consultation to a final walkthrough.
Does Keith Window Company sell mirror frames?
No. It does not sell or manufacture mirror frames.