Foggy glass you can’t wipe clean. A draft you can feel from across the room. A sash that won’t stay up without a book under it. Those are usually the moments people start looking up window replacement cost.
In 2026, replacement windows cost about $450 to $1,500 each installed, and HomeGuide puts the national average near $900 per window. For a house with 10 to 15 windows, that’s roughly $4,500 to $22,500.
2026 tax change. The federal energy-efficient home improvement credit (Section 25C), which paid up to $600 for new windows, ended for windows installed after December 31, 2025.
If a salesperson subtracts a federal window credit from a 2026 quote, ask them to show it in writing.
The price of one window says less than you’d think. What matters is the frame material, the style, and whether the installer swaps only the window or tears out the whole frame.
Those three choices can turn a $500 window into a $2,500 one. Here’s how each one moves the price.
Signs your windows are actually done
Not every old window needs replacing. Some just need new weatherstripping or a sash repair, which costs a fraction of a new unit.
Replacement makes sense when the glass is foggy between the panes, which means the seal has failed and the insulating gas is gone. It also makes sense when the frame is soft or rotting, when the window won’t open or lock, or when you’re dealing with single-pane glass in a cold or hot climate.
A quick test is to hold a lit candle or incense stick near the frame on a windy day. If the smoke bends sharply, air is getting through.
Window replacement cost by frame material
Frame material is the biggest single price driver. These are typical installed prices per window from HomeGuide’s 2026 data.
| Frame material | Installed cost per window | Good to know |
|---|---|---|
| Aluminum | $175 to $1,000 | Cheap and slim, but loses heat. Mostly used in mild climates |
| Vinyl | $200 to $1,500 | Most popular choice. Low maintenance, good insulation |
| Fiberglass | $400 to $2,000 | Stronger than vinyl, handles heat and cold swings well |
| Composite | $400 to $2,300 | Wood fibers and resin, looks like wood with less upkeep |
| Wood | $800 to $3,800 | Best look for older homes, needs painting or staining |
For most homes, mid-grade vinyl gives the best value. Wood makes sense mainly in historic houses or where the HOA requires it.
Cost by window style
Simple windows that open one way cost the least. Windows that project out from the wall cost the most because they need structural support.
| Window style | Installed cost per window |
|---|---|
| Picture (fixed) or single-hung | $300 to $2,100 |
| Sliding | $300 to $2,300 |
| Double-hung | $350 to $2,500 |
| Casement (crank-out) | $400 to $3,000 |
| Bay window | $2,000 to $6,000 |
| Bow window | $3,000 to $8,000 or more |
| Egress window (basement, with digging) | $3,000 to $7,000 |
Egress windows are a different job entirely. They usually mean cutting a bigger hole in a foundation wall and digging a window well, so the window is a small part of the bill.
Insert replacement vs full-frame replacement
This is the choice that confuses most homeowners, and it’s often where quotes differ the most.
An insert (also called pocket replacement) slides a new window into the old frame. The interior trim and exterior siding stay put. It’s faster and cheaper, and most windows go in within an hour.
A full-frame replacement removes everything down to the rough opening. It costs more, often several hundred dollars extra per window, but it lets the installer fix rot, add proper flashing and keep the full glass size.
Pick full-frame if the old frames are soft, if water has leaked around them, or if you’re replacing siding at the same time. Otherwise an insert is usually fine.
One catch with inserts: the new frame sits inside the old one, so you lose an inch or two of glass on each side. On small windows that’s noticeable.
Double pane vs triple pane
Double-pane windows cost about $400 to $2,000 installed. Triple-pane runs about $450 to $3,000.
Triple pane is worth it in cold northern states or next to a busy road, where the extra glass cuts noise. In the South, a good double-pane window with a low-E coating does most of the job for less.
Low-E coating usually adds 10% to 20% to the window price. It’s the upgrade most worth paying for because it blocks heat in summer and holds it in winter.
What a real window replacement quote looks like
Example. A 1990s two-story home in Ohio replacing 12 original windows with mid-grade vinyl, insert installation.
11 double-hung vinyl windows × $700 = $7,700
1 large picture window in the living room = $1,100
Exterior aluminum trim capping, 12 windows × $50 = $600
Removal and disposal of old windows = included
City permit = $100
Estimated total = about $9,500 (roughly $790 per window)
Choosing full-frame installation on the same house could add a few thousand dollars. Upgrading to fiberglass could push the total past $14,000.
Brand prices homeowners ask about
Brand matters less than the installer, but here are typical installed ranges per window.
| Brand | Installed cost per window |
|---|---|
| Window World | $300 to $1,300 |
| Pella | $300 to $3,500 |
| Andersen | $400 to $4,000 |
| Milgard | $700 to $2,000 |
| Marvin | $800 to $2,000 |
Big in-home sales companies often quote high and then offer a “today only” discount. A real price doesn’t expire at the end of the visit. If it does, get two more quotes before signing.
Are new windows worth it?
New windows rarely pay for themselves through energy savings alone. ENERGY STAR says certified windows cut household energy bills by an average of up to 13% when they replace single-pane windows. Savings are smaller when the old windows are already double-pane.
The stronger reasons are comfort, noise, broken seals (foggy glass), rot and resale. HomeGuide puts the resale return on window replacement around 75% to 85%, which is one of the better returns among home projects.
If your windows are double-pane, open and close fine and don’t fog, you can probably wait. If they’re single-pane, drafty or rotting, replacement is easier to justify.
What happens on installation day
For insert windows, a two-person crew can usually do 8 to 12 windows in a day. Each opening is uncovered for less than an hour, so weather is rarely a problem.
Clear about three feet in front of every window inside, and take down curtains and blinds the night before. Installers move faster, and you avoid broken lamps.
Before the crew leaves, open, close and lock every new window yourself. Check that the trim is sealed outside and that there are no gaps in the caulk.
Getting window quotes you can actually compare
- Count and measure your windows. Note the style and rough size of each one. Quotes are only comparable if they cover the same windows.
- Decide insert or full-frame. Ask each installer which they recommend and why, after they look at your frames.
- Get three written quotes. Include at least one local installer, not only national in-home sales brands.
- Compare the glass package. Check double or triple pane, low-E, gas fill and the U-factor rating on each quote.
- Read both warranties. The maker covers the window. The installer covers leaks and labor, which matters more in practice.
- Skip the pressure deals. A deposit of 10% to 30% is normal. Walk away from anyone who needs a signature today to hold a price.
If energy bills are your main reason for new windows, compare the numbers with other upgrades too. In sunny states, our solar panel cost guide shows what a system that cuts the bill at the source would run.
Ways to pay less for new windows
Replace in batches. Most companies charge less per window when they do 10 at once than when they come back for 2 at a time.
Stick to standard sizes where you can. Custom sizes cost more and take longer to make.
Prioritize the worst windows first. Rotting, foggy or drafty windows on the north side or in bedrooms make the biggest comfort difference.
And check your utility. Some still offer rebates for ENERGY STAR windows, even though the federal credit is gone.
Planning more than one project this year? Windows and siding are often done together, and if your roof is near the end of its life, see our roof replacement cost guide before you set a budget.
Window replacement FAQs
How much does it cost to replace 10 windows?
Usually $4,500 to $15,000 for 10 standard vinyl or fiberglass windows. Wood windows or full-frame installation can push it higher.
How long does window replacement take?
Insert windows take about 30 to 60 minutes each, so most homes are done in 1 to 2 days. Bay and bow windows can take a full day each.
Is there a tax credit for new windows in 2026?
Not at the federal level. The Section 25C credit ended for windows installed after December 31, 2025. Some utilities and states still offer rebates.
What is the cheapest type of replacement window?
A standard vinyl single-hung or sliding window, installed as an insert. These can start around $300 to $500 installed.
Can I replace just one window?
Yes, but the per-window price is usually higher because the trip and setup cost is spread over fewer windows.
How long do replacement windows last?
Vinyl windows often last 20 to 30 years. Fiberglass and well-kept wood windows can last longer.
Do new windows reduce energy bills?
Yes, mostly when replacing single-pane windows. ENERGY STAR puts the average at up to 13% in that case, and less if your old windows are double-pane.
Prices on this page are national estimates from HomeGuide’s 2026 window cost data. Tax credit details come from the IRS FAQ on the 2025 law changes. Energy savings estimates come from ENERGY STAR. Your local price depends on your home, region and installer.