Rain streaking down a dark window pane at night, lights blurred beyond the glass

Window Cost Calculator , replacement cost by frame material and number of windows

Pick a frame material, a quality tier and the number of windows, and see the range with its breakdown. No email, no phone number.

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Published August 13, 2026

Figures updated August 13, 2026

The tool

Price your windows

Quality tier

Economy Mid-range Premium

Number of windows, in windows

Count openings, not panes. A double-hung with two sashes is one window, and a bay that fills one hole in the wall is usually priced as one unit with a surcharge.

Add-ons the bid will carry

Full-frame replacement Taking the opening back to the studs instead of setting an insert inside the old frame. The only option once the frame itself has gone. Sill and frame repair Rot found once the old unit is out. Priced per opening as a contingency by honest bidders, discovered mid-job by the rest. Custom or odd sizes Anything outside the manufacturer’s stock table: arches, bays, oversized picture units, or an old house where no two openings match. Upper floors and difficult access Staging, lifts or two extra hands on every unit. A third-floor window costs the same to buy and considerably more to fit. Impact or hurricane-rated glazing Laminated glass and a reinforced frame, required by code in high-wind zones. The single largest surcharge on this list. Lead-safe work practices Required by the EPA on housing built before 1978: certified crew, contained work area, documented cleanup. Permits and disposal Permit, inspection and hauling the old units away. Small, and the line a low bid leaves for you to discover.

Region

Indicative multipliers only. The spread inside a region is often wider than the spread between regions.

Estimated installed cost

$7,200 – $10,100

$722.50 – $1,007.50 per window, installed

Base, material and labor: $7,200 – $10,100
Full-frame replacement: $0
Sill and frame repair: $0
Custom or odd sizes: $0
Upper floors and difficult access: $0
Impact or hurricane-rated glazing: $0
Lead-safe work practices: $0
Permits and disposal: $0
Total: $7,200 – $10,100

Materials: $3,600 – $5,000
Labor and overhead: $3,600 – $5,100

How it works

Where this window cost calculator gets its numbers

One dataset holds the installed cost of each frame material per opening, its expected service life, and the share of that cost which is product rather than labor. One calculation module reads it, and every window figure on this site comes out of that module: the cost guide tables, the vinyl versus fiberglass comparison, and this calculator.

The tool prices by the opening because that is how window quotes are written. A double-hung with two sashes is one window, and a bay filling one hole in the wall is usually one unit with a surcharge, not three.

Installed cost covers the unit and its installation on a straightforward insert replacement.
A quality tier selects a slice of that material’s own range, so no figure here falls outside what the underlying data supports.
Add-ons are a share of the base cost: full-frame replacement, rot repair and custom sizes are priced as extra work on the same opening, which is how installers quote them.
Totals are rounded to the nearest hundred dollars, because per-window pricing varies more between houses than false precision can survive.

What it cannot know

What this window cost calculator does not know

Every figure here is a national bracket per standard opening. The gap between a bracket and your invoice is filled by things no calculator can see.

Your actual openings: Their sizes, how square they still are, what the frames are made of today, and whether the reveal hides rot. An 1890s casement and a 1990s vinyl slider are both "one window" here, and they are not the same job.
Insert or full-frame: An insert keeps the existing frame; a full-frame strips to the rough opening. The add-on covers the difference in labor, but only an installer looking at the frame can tell you which one your house needs.
Your market, this season: Local labor rates, lead times at the plant that builds the units, and permit rules where you live. Window pricing is also unusually quote-driven: two dealers can price the same unit a third apart.
How many actually need replacing: Whole-house numbers assume every window goes. If half of yours are fine, replacing only the failed ones changes the math more than any material choice does.

Using it well

How to use the estimate against a window quote

Window sales are commission-driven, and list prices exist mainly to be discounted. The range here is what the work settles at nationally, which makes it a reference point the sales presentation cannot move.

A quote far above this range is buying a brand and a sales process as much as a window. A quote far below it is usually an insert priced as if the frames were sound, and the time to find out is before the crew arrives.

Ask every bidder the same three things: insert or full-frame, what happens if they find rot, and the per-window price with and without disposal. The breakdown on this page tells you what each answer should roughly cost.

For reference

Every window frame material the calculator prices

The bands the calculator runs on, per opening, supplied and installed. Full-frame replacement and integrated shutters sit on top.

Material	Installed cost per window, installed	Lifespan	Who it suits
Aluminum	$580 – $1,150	20 – 25 years	Cheapest to buy and the worst insulator: metal conducts, so it sweats and loses heat unless the frame is thermally broken.
Vinyl	$650 – $1,300	20 – 30 years	What most American houses get, and rightly: the best insulation per dollar. It cannot be painted and it is what it is for good.
Wood	$600 – $2,000	30 – 60 years	The widest band on this table, and it is real: a builder-grade pine sash and a premium wood unit are the same material and nothing like the same window. The only frame you can repair rather than replace, and the only one that fails outright if you stop painting it.
Clad wood	$1,100 – $2,400	30 – 50 years	Wood inside, aluminum or fiberglass skin outside. Buys the interior look without the exterior repainting, and starts higher than solid wood because you are paying for two materials.
Fiberglass	$850 – $1,850	30 – 50 years	Moves at almost the same rate as the glass it holds, so the seals last. The quiet premium choice on a house you keep.

A bay window or a patio door prices above this average and belongs on its own line of the quote.

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