Window replacement pricing scales with the number and size of openings, but installation method and frame material often matter more than the glass.
What the permit filings show
Based on 2,271 residential building-permit filings. The median window replacement valuation runs from $3,000 in Los Angeles to $15,000 in San Francisco, about 5.0× the cheapest city. Within a city the spread matters too: the middle half of Chicago filings spans 245% of its median, versus 103% in Austin.
CityTypical range (P25–P75)MedianFilings
Los Angeles$1,501 – $5,840$3,000849
Austin$5,000 – $15,000$9,726438
Chicago$5,000 – $34,401$12,000392
San Francisco$7,360 – $27,927$15,000592
Filings are declared valuations from each city's open permit dataset, limited to residential records classified as window replacement work and valued between $1,000 and $2,000,000. A city is listed only when at least 30 filings qualify. Full methodology. Data refreshed September 2026.
What the numbers say
Sample size varies by city too — 849 qualifying window replacement filings back the Los Angeles figures above, versus just 392 for Chicago — and while both clear the site's 30-filing minimum, Los Angeles's far larger sample settles into a steadier shape than Chicago's, which sits closer to that threshold.
Zoom out across every city on this page and the legitimate range is wider still: the lowest 25th-percentile figure is $1,501, in Los Angeles, and the highest 75th-percentile figure is $34,401, in Chicago — a 22.9× gap that reflects different cities, codes and building stock, not overcharging.
In Austin, quotes cluster tightly: the middle half of filings sits between $5,000 and $15,000, so a quote near the $9,726 median there is the safer assumption. In Chicago, that band runs from $5,000 to $34,401 — wide enough that a quote toward either edge is still plausible, so treat Chicago's median as a starting point for a conversation, not a target.
Count, size and specification
Every opening is priced individually. Larger units, unusual shapes and higher-performance glazing all raise the cost per window, and the labor to install and seal each opening is a significant share of the total.
Installation method
Insert replacements fit inside the existing frame; full-frame replacements remove the old frame entirely and allow rot to be repaired and flashing to be redone. Full-frame work costs more but addresses hidden water damage that an insert would cover up.
Hidden extras
Interior and exterior trim repair, painting, and remediation of old lead paint or damaged framing are frequently outside the base quote. Ask what is included and whether the quote covers making good after installation.
What drives the cost of window replacement
Count and size set the baseline, since every opening is priced individually — a whole-house project with a dozen large windows costs proportionally more than replacing two or three small ones.
Glazing and frame material move the price per window: double- or triple-pane glass, low-E coatings, and frame materials such as vinyl, fiberglass or wood-clad all sit at different price points for an identical opening size.
Installation method matters as much as the window itself. An insert replacement fits inside the existing frame and is quicker; a full-frame replacement removes the old frame down to the rough opening, which costs more but is the only way to fix rot or reframe an opening that has settled out of square. Access adds further labor on multi-story homes that need staging or a lift for upper-floor windows.
A worked example
Take Los Angeles, the city with the most filings behind its figures (849). Suppose two contractors quote for the same window replacement: one at about $3,000, in line with the local median, and another at about $7,000, well above the local P75 of $5,840.
Neither figure alone says which contractor is right: $3,000 sits where most Los Angeles filings land, a reasonable opening point, while $7,000 sits above where three-quarters of them do — not necessarily a red flag, since a full-frame replacement, a premium glazing package or difficult upper-floor access can all justify it — but a scope worth having spelled out before you sign. Both figures are illustrative.
What a window permit valuation leaves out
The filed value generally covers the window units, removal, installation, flashing and sealing for the declared openings. It reflects what the applicant declared at filing, not necessarily the final paid invoice.
Interior and exterior trim repair, repainting disturbed areas, and remediation of lead paint or rotten framing discovered during removal are frequently priced, and sometimes invoiced, separately from the core window replacement.
A quote that bundles window replacement with unrelated work — siding repair or an interior remodel around the openings, for example — will not compare cleanly to a range built only from permits filed as window replacement.
Use your quote to test the range
What this project can cover
Window replacement can include the units, removal, installation, flashing, sealing, trim, and disposal for the stated openings.
What may sit outside it
Structural opening changes, rot repair, lead or hazardous-material remediation, exterior painting, and unusual access can be additional.
Checks before you accept a quote
Compare window count, dimensions, glazing, frame, and hardware.
Confirm the installation method and water-management details.
Check whether interior and exterior trim repairs are included.
Questions to ask before you sign
Is this an insert or a full-frame replacement, and does the price change if a full-frame turns out to be necessary?
What glazing package and frame material is quoted, and how does that compare window for window against other bids?
Does the price include interior and exterior trim repair, or is that a separate line?
How is access — scaffolding or a lift for upper floors — priced into the job?
What happens if rot or an out-of-square opening is found once the old window is removed?
What warranty applies to the glass, the frame and the installation labor separately?
Questions people ask
Why is the per-window range so wide?
Frame material and glazing package move the price more than almost anything else for this project. A basic vinyl insert and a full-frame wood-clad replacement with high-performance glazing can differ several times over for a similarly sized opening.
Does the price include just the window or the whole installation?
Filed valuations are for the installed job — unit, removal, flashing and sealing — not the window unit alone. A window-only quote from a materials supplier will look much lower than the figures here for that reason.
Is a full-house project priced the same per window as replacing just one or two?
Usually not. Larger jobs often see a lower price per window as fixed costs like scheduling and staging are spread across more openings, though every contractor prices this differently.
What's the practical difference between an insert and a full-frame replacement?
An insert keeps the existing frame and is faster and usually cheaper; a full-frame replacement removes everything down to the rough opening, which costs more but is the only way to address rot or an opening that is no longer square.