Top-Rated Window Replacement Companies in Knoxville, TN
We don't have license data for window and glazing businesses in Knoxville, TN the way we do for some other cities on this site. This page leans on Google Maps instead: 10 businesses, ranked by rating weighted against how many people reviewed them. A strong Google rating still isn't the same thing as a license on file, so ask to see one before you sign anything.
Google Maps ratings checked · How we rank
4AIECC climate zone · ENERGY STAR North-Central zone
Climate and energy performance in Knoxville
Weather at that level is one more reason the flashing and sill pan under a Knoxville window matter as much as the glass sitting in it.
So ask any Knoxville contractor how they handle both, not just which brand they carry.
Data: U.S. EPA / DOE, ENERGY STAR, ENERGY STAR Version 7.0 Climate Zones by County/ZIP (Windows, Doors, and Skylights) (V7.0); Pacific Northwest National Laboratory (DOE Building America), Guide to Determining Climate Zone by County: Building America and IECC 2021 Updates (PNNL-33270) (2021 IECC), from the nearest NOAA station 5 mi away.
Google's top window installers serving Knoxville, TN
Ranked by Google rating weighted against how many people left one, so a perfect score from a handful of reviewers never outranks a strong average built on hundreds. That ranking is not a license check; call the state directly and ask for the contractor's license or registration number.
| Rank | Business | Google rating | Reviews | Category | Area | Google Maps listing |
|---|---|---|---|---|---|---|
| 1 | Glass Pros | 113 | Window installation service | Knoxville 37921 | Google reviews | |
| 2 | Window Works | 468 | Window installation service | Knoxville 37932 | Google reviews | |
| 3 | Magnolia Window & Door Company | 296 | Window installation service | Knoxville 37912 | Google reviews | |
| 4 | North Knox Siding & Windows LLC | 177 | Window installation service | Knoxville 37918 | Google reviews | |
| 5 | Performance Windows Knoxville | 135 | Window installation service | Knoxville 37919 | Google reviews | |
| 6 | Glass Doctor of Knoxville | 1,152 | Window installation service | Knoxville 37912 | Google reviews | |
| 7 | CRS Exteriors | 399 | Window installation service | Knoxville 37922 | Google reviews | |
| 8 | Keith Window Company | 241 | Window installation service | Knoxville 37917 | Google reviews | |
| 9 | Window Depot Knoxville | 44 | Window installation service | Knoxville 37934 | Google reviews | |
| 10 | Ollin Home Solutions - Knoxville | 33 | Window installation service | Knoxville 37923 | Google reviews |
Questions to ask before you sign
- How long have you held your state license, and can I see the number?
- Is this a full-frame replacement or an insert into my existing frame, and why that one?
- Who pulls the permit, and does this change trigger an egress check on a bedroom window?
- What flashing and sill pan will you use, and in what order do you install them?
- If my home was built before 1978, is your crew lead-safe certified for this job?
- What's the completion date in writing, and what happens if the schedule slips?