CityvettedHow much does window installation cost in Knoxville?
Real window installation pricing in Knoxville, TN, drawn from the 8 companies we rank on actual Google reviews. Published starting prices run from $100 to $250. Below is the full breakdown, what drives the number, and how to get a fair quote.
Based on published starting prices from 8 window installation companies in Knoxville, TN. Cityvetted analysis, updated June 13, 2026.
In Knoxville, the lowest published starting price among our top-ranked window installation companies comes from Window Depot Knoxville at $100, while Keith Window Company sits at the higher end near $250. That $150 spread usually reflects scope rather than quality: the cheaper number often covers a smaller or simpler job. Most of these companies quote after a visit.
What top-rated window installation companies in Knoxville charge
Starting prices published by the highest-scoring companies in our Knoxville ranking. Use these as a baseline, then get a firm quote for your specific job.
What drives the price of window installation in Knoxville
Two window installation companies can quote the same job and land hundreds of dollars apart, because the price is set less by the company than by the work itself. For window installation, the factors that move the number most are:
- The number and size of windows.
- Replacement versus new construction.
- Frame material and energy rating.
- Trim and finish work.
Before you compare quotes, write down your version of each of these. When every window installation companies prices the identical scope, the cheapest bid is finally a real deal rather than a different, smaller job in disguise.
Frequently asked questions
How much does window installation cost in Knoxville?
Across the 8 window installation companies we rank in Knoxville, TN, published starting prices run from $100 (Window Depot Knoxville) up to $250 (Keith Window Company), with the middle of the field near $180. Your final cost depends on the number and size of windows and replacement versus new construction, so treat these as a floor and get a firm quote for your specific job.
Why do window installation prices vary so much in Knoxville?
Two quotes for the "same" job often price different work. For window installation companies, the biggest drivers are the number and size of windows, replacement versus new construction, frame material and energy rating, trim and finish work. A low number is frequently a quote that quietly left one of these out, which is why the spread between our cheapest and priciest pick here is $150.
How do I get an accurate window installation quote in Knoxville?
Write down exactly what you want done, hand the identical scope to two or three window installation companies, and insist on an itemized estimate rather than a lump sum. For anything beyond a basic service call, a real bid needs eyes on the job, not a number over the phone.
See which window installation companies in Knoxville actually score highest on reviews, longevity, and service quality.