Window replacement cost
Replacing a standard window typically costs $450 to $1,500 installed, according to HomeGuide's February 2026 data. Angi's August 2026 data puts a whole-house project at $3,436 to $11,838, averaging $7,348. Below you'll find prices by style, frame material and glass, the difference between insert and full-frame installs, and an estimator you can fill in with your own quotes.
Published cost ranges
These are national ranges as each source publishes them. None of them are our own prices.
| Source (date) | Per window | Whole house |
|---|---|---|
| Angi (updated Aug 3, 2026) | $300–$2,500; about $750 average in whole-house jobs | $3,436–$11,838 (avg. $7,348) |
| HomeGuide (Feb 5, 2026) | $450–$1,500 (single-hung, basic frame) | $4,500–$22,500 (10–15 windows) |
| Fixr (updated Jan 21, 2026) | $450–$1,200 (avg. $800) | $8,000–$12,000 (10–15 windows); $12,000–$24,000 (15–30) |
HomeGuide says the window itself is 65% to 75% of the cost and labor the remaining 25% to 35%. It also says replacing all the windows at once lowers the cost per window.
By style
| Style | Unit only (HomeGuide) | Installed (HomeGuide) | Per window (Angi) |
|---|---|---|---|
| Double-hung | $250–$2,000 | $350–$2,500 | $150–$650 |
| Casement | $300–$2,500 | $400–$3,000 | $150–$1,000 |
| Sliding | $200–$1,800 | $300–$2,300 | – |
| Picture | $200–$800 | $300–$1,300 | $65–$700 |
| Bay | $1,500–$3,500 | $2,000–$6,000 | $900–$7,100 |
| Bow | $2,000–$6,000 | $3,000–$8,000+ | $1,500–$6,500 |
By frame material
| Material | Installed (HomeGuide) | Per window (Angi) | Per window (Fixr) |
|---|---|---|---|
| Vinyl | $200–$1,500 | $100–$900 | $350–$800 |
| Wood | $800–$3,800 | $150–$1,300 | $600–$2,000 |
| Fiberglass | $400–$2,000 | $500–$1,500 | $400–$1,500 |
| Aluminum | $175–$1,000 | $75–$400 | $200–$800 |
| Composite | $400–$2,300 | $300–$1,200 | $300–$2,500 |
HomeGuide says aluminum is the cheapest but insulates poorly, vinyl and fiberglass are popular mid-range choices, and wood costs the most and needs the most upkeep. Angi says fiberglass windows can last up to 40 years, and most windows 15 to 20.
Glass
- Double-pane: $400–$2,000 installed, triple-pane: $450–$3,000 (HomeGuide). Angi gives $500–$2,000 and $1,000–$4,000.
- Low-E coating: adds 10% to 20% to the window price (HomeGuide). Angi lists Low-E glass at $300–$1,100 per window.
- Tempered or laminated glass: adds $100–$800 per window (Fixr). Angi lists tempered at $200–$700.
Insert vs full-frame
An insert (retrofit or pocket) replacement fits a new window into the existing frame. A full-frame replacement removes the old frame down to the rough opening. Angi puts installation at $100–$300 per window for retrofit and $180–$1,500 for full-frame. It says a retrofit only makes sense when the existing frame is structurally sound, and full-frame is the choice when the frame is damaged or rotted. Angi adds that hidden structural repairs can add $100–$2,000 or more.
Estimate your own job
The estimator builds the price from the window unit (HomeGuide's unit-only price for the style), installation by method (Angi), glass options, and any permit, disposal or older-home work. Type in a figure from your own quote and that line will use your number instead. Leave a box blank to keep the published range. The installed totals for your style and frame material are shown below the result for comparison.
Energy savings
ENERGY STAR says upgrading to certified windows lowers household energy bills by an average of 12%. On its windows product page it says savings average up to 13% nationwide when replacing single-pane windows. Certified windows are rated for four US climate zones, so look for the label for your area. ENERGY STAR also says certified low-E storm windows, installed over single-pane clear glass, save about 20% on heating and cooling bills, with a payback of about three years. That's a much cheaper option if your frames are sound.
The federal Energy Efficient Home Improvement Credit no longer applies. The IRS says it covers qualifying property placed in service through December 31, 2025. Some cost guides still mention it, so don't count on it.
- Lead paint (homes built before 1978): EPA says about three-quarters of US homes built before 1978 still contain some lead-based paint, and window sills are a common source of lead dust. EPA's Renovation, Repair and Painting (RRP) Rule requires anyone paid to disturb painted surfaces in these homes to be certified and to use lead-safe work practices. Ask your contractor for their EPA (or state) lead-safe firm certification. The rule generally doesn't cover owners working on their own home, but the dust is just as hazardous, so follow EPA's lead-safe guidance.
- Egress: under IRC R310, sleeping rooms and basements need an emergency escape opening, generally at least 5.7 ft² of net clear opening (5 ft² at grade floor), at least 24 in high and 20 in wide, with the sill no more than 44 in above the floor. R310.5 exempts replacement windows if they're the manufacturer's largest standard size that fits the existing opening and of the same operating style or one with an equal or greater opening. Switching a bedroom casement to a smaller slider can fail this check.
- Safety glazing: IRC R308.4 treats some window glass as a hazardous location that needs safety glass. A window counts when a single pane is over 9 ft², its bottom edge is under 18 in from the floor, its top edge is over 36 in, and a walking surface is within 36 in. Glass near doors, tubs and showers, and stairs also counts. Safety glass must carry a permanent label.
- Working at height: windows are heavy and the glass breaks. Hire a pro for upper-floor windows. Fixr notes that most manufacturers void the warranty if the window isn't professionally installed.
- Permits: local codes vary. Ask your building department before resizing an opening or changing a window type.
Getting quotes
- Get at least three itemized quotes for the same window brand, series, frame and glass (HomeGuide). Each should state insert or full-frame, the installation cost, disposal and the permit.
- Check the U-factor and the ENERGY STAR climate zone on the label.
- Ask how rotted sills or framing will be priced if they're found.
- For pre-1978 homes, ask to see the firm's lead-safe certification.
- Compare the product and installation warranties.
More project costs: garage door replacement cost, water heater replacement cost, tankless water heater cost, heat pump installation cost, and the cost guides. Repainting the trim afterwards? Try the paint calculator.
FAQ
How much does it cost to replace one window?
HomeGuide (February 2026) puts a typical replacement at $450 to $1,500 per window installed, and Fixr (January 2026) at $450 to $1,200, averaging about $800. Angi (August 2026) gives about $750 per window for whole-house projects. Bay and bow windows cost several thousand dollars each.
How much does it cost to replace all the windows in a house?
Angi's August 2026 data puts the average project at $7,348, with most between $3,436 and $11,838. HomeGuide gives $4,500 to $22,500 for 10 to 15 windows.
Is insert (retrofit) replacement cheaper than full-frame?
Yes. Angi puts retrofit installation at $100 to $300 per window and full-frame at $180 to $1,500. Angi says a retrofit is only appropriate when the existing frame is structurally sound. A full-frame replacement is the choice when the frame is damaged or rotted.
Is there a federal tax credit for new windows?
Not for new installs. The IRS says the Energy Efficient Home Improvement Credit applies to qualifying property placed in service through December 31, 2025. Some cost guides still mention it. Check your utility and state programs for rebates.
Do I need a permit to replace windows?
It depends on where you live. HomeGuide says a same-size, same-type replacement typically doesn't need one, but changing the size does ($50 to $200). Fixr puts permit fees at $50 to $300 and says some towns require permits for any window replacement. Ask your building department.
Sources
All checked October 14, 2026. Dates are each page's own published or updated date.
- Angi, How much does window replacement cost?, updated August 3, 2026: project and per-window ranges, by style, material and glass; labor, retrofit vs full-frame, older homes, structural repairs, disposal; lifespan.
- HomeGuide, Window replacement cost, February 5, 2026: per-window and whole-house prices; unit and installed by type; installed by material and panes; Low-E; labor share; permits.
- Fixr, Window replacement cost, updated January 21, 2026: per-window average and range, whole-house, material, glass upgrades, permits, warranty.
- ENERGY STAR, High performing windows or storm windows and Residential windows, doors and skylights: savings figures and climate zones.
- IRS, Energy Efficient Home Improvement Credit: property placed in service through December 31, 2025.
- US EPA, Lead Renovation, Repair and Painting Program: pre-1978 homes, certification, homeowner exemption.
- ICC, 2021 International Residential Code, Chapter 3: R308.4 (safety glazing), R310 (emergency escape openings, replacement windows).