Window replacement costs $450 to $1,100 per window installed for most homes in 2026, with vinyl inserts at the bottom of that range and full-frame wood or fiberglass jobs at the top. A typical 10-window house lands between $6,500 and $13,500 depending on material and whether the frames get replaced too. The price you’re quoted per window hides most of the decisions, so this guide breaks down where the money goes and where quotes quietly diverge.
What Drives the Price
Material sets the base price, then window type and installation method move it up or down.
| Material (installed, standard size) | Typical price per window | Notes |
|---|---|---|
| Vinyl | $450-$750 | The volume seller; decent low-E glass is standard now |
| Fiberglass | $600-$1,000 | Stronger, more dimensionally stable, paintable |
| Wood interior with clad exterior | $750-$1,200+ | The premium look; more maintenance-prone |
| Aluminum | $500-$900 | Mostly warm-climate markets now |
Window type stacks a premium or discount on those bases. Double-hungs are the reference point. Casements and awnings run 20 to 30% more because of the hardware. Picture windows cost less than an operable unit of the same size, which surprises people. Bays and bows are a different animal entirely: expect $2,500 to $5,500 installed, since they’re really three or more windows plus structural support.
Size matters less than people think until you leave standard ranges. Stock sizes are cheap because factories cut them by the thousand. A custom size adds 15 to 40%, and an oddball opening in an old house can add more.
Full-Frame vs Insert: The Price Gap
This is the single biggest fork in a window quote. An insert, also called pocket or retrofit replacement, leaves your existing frame in place and fits a new window inside it. A full-frame replacement tears everything out to the rough opening, which means new frame, new exterior trim, new interior casing, and a look at what the wall cavity has been hiding.
Inserts run roughly $100 to $350 less per window than full-frame work. On a 10-window job, that’s a $1,000 to $3,500 gap. You give up some glass area, typically an inch or two each direction, and you inherit whatever problems the old frame has.
Here’s the honest guidance. If your frames are square, dry, and solid, inserts are a perfectly good choice and many homes never need anything else. If a contractor finds rot, or your frames are visibly soft at the sill, an insert is a Band-Aid over wet wood. We’ve seen more than one insert job fail within five years because the new window got fastened to a frame that was already composting.
Labor usually runs 30 to 45% of a straightforward window job, and full-frame work pushes that higher. Rot repair is the wildcard line item: expect $150 to $400 per affected window once the old frame is open, and an honest contractor prices unknowns as a unit rate up front rather than a blank check.
A Real 10-Window Example
Take a single-story 1990s ranch with eight double-hungs, one casement over the sink, and one picture window. Frames are sound, so inserts work:
| Item | Qty | Price each | Total |
|---|---|---|---|
| Vinyl double-hung inserts | 8 | $575 | $4,600 |
| Vinyl casement insert | 1 | $850 | $850 |
| Vinyl picture insert | 1 | $600 | $600 |
| Disposal and exterior sealant | - | - | $250 |
| Job total | about $6,300 |
Same house, but it’s a 1940s colonial with painted-shut wood windows and two soft sills. Full-frame fiberglass, with the two rot repairs:
| Item | Qty | Price each | Total |
|---|---|---|---|
| Fiberglass full-frame double-hungs | 10 | $1,050 | $10,500 |
| Sill and trim rot repair | 2 | $350 | $700 |
| Interior casing restoration | 10 windows | $60 | $600 |
| Job total | about $11,800 |
Same window count, nearly double the price, and both quotes are legitimate. The difference is method, material, and what the walls were hiding.
Egress Rules Worth Knowing
Bedroom windows are code-regulated as emergency exits, and the rules matter when you replace them. Under the model residential code most states adapt, an egress window needs a clear opening of at least 5.7 square feet, at least 24 inches of opening height, at least 20 inches of width, and a sill no more than 44 inches off the floor. Basements at grade get a slightly easier 5.0 square foot minimum.
Straight replacement usually doesn’t trigger an upgrade, since you’re keeping the same opening. But if you change the window’s operation, swapping a casement for a slider can shrink the clear opening below code, or enlarge the opening at all, your permit inspection will care. Ask the contractor explicitly how the new unit complies if the window serves a sleeping room. Local amendments vary, and a good installer knows them cold.
How to Pay Less
Buy in the off-season. Winter and late-fall scheduling regularly comes with better pricing because installation crews would rather work than sit, and lead times shrink.
Ask for whole-job pricing, not per-window math. Contractors price per window when they want room to fudge, but a single 10-window mobilization, one dumpster, one crew week, prices out better per unit than three separate two-window jobs. If your budget forces a split, do the worst windows now and the rest later; the worst performers deliver most of the comfort benefit anyway.
Stick to stock sizes and skip the premium glass upsell unless you have a specific problem like west-facing afternoon sun. Triple-pane rarely pays back outside very cold climates. And compare at least three quotes with identical specs, because bids for the same window list routinely spread 20 to 30%. Per-window pricing that only appears as a monthly payment is one of the contractor quote red flags we tell readers to walk away from.
Mistakes to Avoid
The biggest one is replacing windows for energy savings alone. New low-E windows over old single panes might save $150 to $400 a year on a typical house; against a $10,000 job, the payback stretches past 25 years. Windows are a comfort, maintenance, and resale play first. Our new windows energy savings guide runs the full math so you can decide with open eyes.
Don’t let anyone install inserts over suspect frames without opening up at least one to check. Don’t pay for the whole job upfront; a deposit of 10 to 30% with progress payments is standard and protects you. And don’t order from rough measurements taken over the phone. Window openings are almost never square, and a quarter inch of error on a custom order becomes a lifetime of drafts.
Bottom Line
Plan on $450 to $750 per window for vinyl inserts, $600 to $1,100 for fiberglass or full-frame work, and $2,500 to $5,500 for a bay or bow. A 10-window house realistically totals $6,500 to $13,500. Get whole-job quotes from three contractors, keep the spec sheet identical across bids, and treat energy savings as a bonus rather than the reason. Once the windows are done, many homeowners tackle the entry door next, and our front door replacement cost guide covers that project.
FAQ
How much does it cost to replace 10 windows?
For vinyl inserts in sound frames, roughly $6,000 to $7,500 installed. Full-frame fiberglass or wood runs $10,000 to $13,500, plus rot repairs if the old frames have failed. The insert-versus-full-frame decision alone usually explains most of the gap between bids.
Is it cheaper to replace all windows at once?
Usually, yes, by 5 to 15% per window. One mobilization spreads disposal, setup, and crew travel across more units. That said, splitting the project is fine if the budget requires it; just do the worst-performing windows first and keep the same product line so the house matches.
Does replacing windows really save energy?
Some, but less than ads claim. Swapping single-pane windows for modern low-E units might cut $150 to $400 a year on heating and cooling for a typical home. Replacing 1990s double panes with new double panes saves far less. Comfort and UV reduction are often the bigger wins.
What time of year is cheapest for window replacement?
Late fall and winter, in most markets. Contractors book lighter then and discount to keep crews busy, and cold-weather installation is routine with proper sealing. Spring and summer quotes run highest because that’s when everyone decides they want new windows.