Window Replacement Cost Calculator 2026 — Per Window
Price replacement windows by type, frame, glass and insert vs full-frame. Fixr's 2026 average is about $800 per window, with most paying $450–$1,200.
Window Replacement Cost Calculator
Count each opening once; a mulled pair is two windows. 1–60.
Installed price per window, all frame materials.
Full-frame if the frame is rotted or you change the size.
Adjusts the labor share by local construction wages (BLS, May 2025).
homeprojectestimator.com · · https://homeprojectestimator.com/calculators/window-replacement-cost/
Estimated window replacement cost
$5,950
Typical range $2,750 – $9,150
Cost per window
$595.00
Where the money goes
- 10 × vinyl double-hung, double-pane, installed $274 – $913 per window (materials + labor)$2,750 – $9,150
National average. Pick your state and metro area to adjust the labor share (about 30% of this job) to local wages. Get three written quotes before you commit to a budget.
Per-type prices from Fixr (January 2026); frame and glass adjustments from This Old House averages (August 2026); full-frame premium from This Old House (April 2026). Not included: rot repair in the rough opening, interior trim and paint, and haul-away fees some installers bill separately.
How to use this calculator
- Number of windows. Count each opening you are replacing. Two windows joined side by side in one frame (a mulled pair) count as two. For a mix of types, run the calculator once per type and add the results.
- Window type. How the sash opens: double-hung (both sashes slide), single-hung (only the bottom slides), casement (cranks out on side hinges), sliding (moves sideways), awning (hinged at the top), picture (fixed glass), bay or bow (a multi-window unit that projects from the wall).
- Frame material. Vinyl, aluminum, composite, wood or fiberglass.
- Glass package. Double-pane is the baseline; triple-pane adds a third layer of glass.
- Installation method. Insert if the old frames are sound and square; full-frame if they are rotted, out of square or you are changing the window size.
- Permit and state. Tick the permit if your town requires one, and pick your state to adjust labor to local wages.
The calculator starts from Fixr's installed price for the window type, which covers all frame materials, then scales it by how far each frame and glass option sits from This Old House's $517 all-window average. Vinyl, at $472, is 0.91 of that average; fiberglass, at $564, is 1.09. Triple-pane is $609 against $529 for double-pane, a factor of 1.15.
Window replacement cost in 2026
Installed price per window by type:
| Window type | Installed, per window |
|---|---|
| Single-hung | $250 – $700 |
| Double-hung | $300 – $1,000 |
| Awning | $300 – $800 |
| Casement | $400 – $1,200 |
| Picture | $300 – $1,600 |
| Sliding | $700 – $1,500 |
| Bay | $900 – $4,500 |
| Bow | $1,500 – $8,000 |
Source: Fixr, How Much Does Window Replacement Cost in 2026?, January 21, 2026.
By frame material, the two sources measure different things — Fixr gives ranges, This Old House gives averages — but put the materials in the same order:
| Frame | Fixr range, per window | This Old House average |
|---|---|---|
| Aluminum | $200 – $800 | $453 |
| Vinyl | $350 – $800 | $472 |
| Composite | $300 – $2,500 | $513 |
| Wood | $600 – $2,000 | $544 |
| Fiberglass | $400 – $1,500 | $564 |
Sources: Fixr, How Much Does Window Replacement Cost in 2026?, January 21, 2026; This Old House, Window Replacement Cost (2026), August 11, 2026.
By project size:
| Project | Typical cost |
|---|---|
| 1 window | $450 – $1,200 |
| 5 – 10 windows | $2,250 – $12,000 |
| 11 – 20 windows | $4,950 – $24,000 |
| 21 – 25 windows | $9,450 – $30,000 |
| Single-story home (10 – 15 windows) | $8,000 – $12,000 |
| Two-story home (15 – 30 windows) | $12,000 – $24,000 |
Source: Fixr, How Much Does Window Replacement Cost in 2026?, January 21, 2026.
The two big publishers disagree on the level: Fixr's average is about $800 per window ($450–$1,200 typical), This Old House's is $517 ($453–$609 across frame and glass options). The calculator's default — 10 vinyl double-hung inserts with double-pane glass — lands at $595 per window and $5,950 in total ($2,750–$9,150), between the two.
What drives the price
- Window type. The widest lever. At the top of Fixr's ranges, one bow window ($8,000) costs as much as eight double-hungs ($1,000 each).
- Frame material. Aluminum and vinyl are the cheapest; fiberglass and wood the most expensive. On This Old House's averages, fiberglass ($564) costs about 25% more than aluminum ($453).
- Glass. Fixr's glass table runs from $200–$650 for single-pane to $450–$2,000 for double-pane and $1,000–$4,000 for triple-pane; low-E glass is listed at $300–$1,100, laminated at $300–$1,200 and tempered at $250–$800. Fixr prices glass upgrades at $100 to $800 per window.
- Insert or full-frame. This Old House: $100–$400 per window for an insert, $180–$1,500 for full-frame.
- Labor. About 30% of the total (Fixr): $150–$300 for a standard window, up to $800 for a bay or bow.
- What the old frame hides. Fixr warns that structural repairs can add anywhere from a few hundred dollars to thousands.
Cost breakdown
- Windows, installed. Count × Fixr's per-type price × the frame and glass factors. This is one line because Fixr and This Old House publish installed totals, not separate material and labor prices.
- Full-frame (extra over insert). $80 to $1,100 per window: the gap between This Old House's full-frame range ($180–$1,500) and its insert range ($100–$400) at each end. Fixr says only that an insert replacement costs "a reduced fee", so its per-type prices are treated as insert jobs.
- Permit. $50 to $300 per project (Fixr).
Not included: rot repair in the rough opening or sill, interior casing and paint, and haul-away of the old units — This Old House notes installers may leave removal and disposal out of the first quote, and Fixr says some pros include it while others bill it separately.
Prices by state and metro area
The state selector scales only the labor part of the estimate. The factor is (1 − labor share) + labor share × the state's construction wage index — the state's mean hourly wage for construction and extraction occupations over the national mean of $31.42 (BLS OEWS, May 2025). Fixr puts labor at about 30% of a window job, so states move the total less than they do for most remodeling.
For the default 10-window job ($5,950 national):
- Washington (index 1.26): about $6,400
- Texas (index 0.84): about $5,650
- Mississippi (index 0.78): about $5,550
For a closer number, choose your metro area as well as your state. At the default inputs the national estimate of $5,950 becomes $6,250 in Los Angeles-Long Beach-Anaheim, CA, where construction wages are 18% above the national mean, and $5,700 in Houston-Pasadena-The Woodlands, TX, 13% below it.
Insert or full-frame?
This Old House's rule of thumb is simple. Insert replacement suits frames that are still in good condition when you want the same size and style and a quicker, less disruptive job — only the interior trim comes off. The trade-off is a slightly smaller glass area, and its FAQ notes inserts are less energy-efficient. Full-frame is the right call when the frame is damaged, out of square or no longer sealing, when you want to change the window's size or style, or when there is water damage or poor insulation around the opening to deal with.
On the calculator's default 10 vinyl double-hungs, switching to full-frame raises the typical estimate from $5,950 to $11,850 ($3,550–$20,150). You often find out which one you need only when the first old window comes out, so ask for both prices up front.
Energy savings: what the numbers say
ENERGY STAR's 2023 estimates, for replacing every window in a typical 2,376 sq ft two-story house with ENERGY STAR version 7.0 windows:
| Climate zone | Replacing single-pane clear | Replacing double-pane clear |
|---|---|---|
| Northern | $568 a year (12%) | $282 a year (6%) |
| North-Central | $493 a year (11%) | $253 a year (6%) |
| South-Central | $547 a year (12%) | $336 a year (7%) |
| Southern | $563 a year (12%) | $373 a year (8%) |
Source: ENERGY STAR, Average Annual Energy Savings When Replacing Windows (D+R International, October 2023). Percentages are shares of the whole-home utility bill.
Set against a $5,950 project, savings of $250 to $570 a year will not pay the windows back quickly on their own. Windows that are fogged, rotted, painted shut or drafty are a better reason to replace than energy alone; if your current windows are sound double-pane units, the savings case is at its weakest.
Signs it is time, and how to compare quotes
Replace when the frame is soft or rotted, the sash no longer opens or stays open, there is condensation between panes, or you can feel drafts with the window shut. When you collect bids, line them up on the same items: window type and series, frame, glass package, insert or full-frame, interior trim and paint, haul-away and the permit. This Old House suggests scheduling for late spring or early summer, when conditions are dry and slightly warm.
Sources
- Fixr, How Much Does Window Replacement Cost in 2026? — average and range per window, project sizes, price by type, frame and glass, labor share, permits, glass upgrades (updated January 21, 2026). link
- This Old House, Window Replacement Cost (2026) — average per window, project average, averages by type, frame and glass (updated August 11, 2026). link
- This Old House, Full-Frame vs. Insert Window Replacement — price per window for each method and when each fits (updated April 23, 2026). link
- ENERGY STAR, Average Annual Energy Savings When Replacing Windows — savings by climate zone (D+R International, October 2023). link
- U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics — state construction wages behind the state selector (May 2025). link
Related
Frequently Asked Questions
How much does it cost to replace a window in 2026?
Fixr puts the average at about $800 per window installed, with most homeowners paying $450 to $1,200 and a full spread of $300 to $3,000 (January 2026). This Old House reports a lower $517 average per installed window, with frame and glass options ranging from $453 to $609 (August 2026). Bay and bow windows sit well above both: $900 to $8,000 each.
How much does it cost to replace all the windows in a house?
Fixr prices 5 to 10 windows at $2,250 to $12,000 and 11 to 20 windows at $4,950 to $24,000. A single-story home with 10 to 15 windows typically runs $8,000 to $12,000, and a two-story home with 15 to 30 windows $12,000 to $24,000. This Old House's average project is $7,183 for about seven windows.
What is the difference between insert and full-frame replacement?
An insert window fits inside the existing frame, so only the interior trim comes off; it is quicker but slightly reduces the glass area. Full-frame replacement removes the old frame down to the rough opening. This Old House puts inserts at $100 to $400 per window and full-frame at $180 to $1,500, and recommends full-frame when the frame is damaged, out of square or being resized.
Which window frame material is cheapest?
Aluminum and vinyl. This Old House averages $453 per installed aluminum window and $472 for vinyl, against $513 for composite, $544 for wood and $564 for fiberglass. Fixr's ranges agree on the order: aluminum $200 to $800, vinyl $350 to $800, fiberglass $400 to $1,500 and wood $600 to $2,000 per window.
Is triple-pane glass worth the extra cost?
It costs more: This Old House averages $609 per triple-pane window against $529 for double-pane, about 15% more, while Fixr's glass table runs $1,000 to $4,000 for triple-pane and $450 to $2,000 for double-pane. The case is strongest where heating dominates; check the climate-zone savings figures ENERGY STAR publishes before paying for the third pane.
How much will new windows save on energy bills?
ENERGY STAR's 2023 estimates for replacing every window in a typical 2,376 sq ft two-story house: $493 to $568 a year when the old windows are single-pane clear glass, and $253 to $373 a year when they are double-pane clear glass, depending on climate zone. That is 6% to 12% of the household's whole utility bill.
What share of window replacement cost is labor?
Fixr says labor is about 30% of the total: typically $150 to $300 per window for standard sizes and up to $800 for a large bay or bow. That is why the state selector in this calculator moves the estimate less than it does for labor-heavy jobs such as siding or painting.