Updated October 2026. Planning estimate, not a contractor quote. How we estimate costs
Published installed prices run from about $450 to $1,600 per window for vinyl and $1,100 to $2,200 or more for fiberglass or wood. Four short steps narrow that to a planning range for your own project, with what pushes it up, what keeps it down and what it leaves out. Your answers stay in your browser.
Worth knowing.
A planning range is not a quote. It is what similar projects in the same tier tend to fall into once material, opening count, glass and installation method are set.
Use it to sanity-check numbers before anyone measures your house, and to know which line items on a future quote should move the price and which should not.
Step 1 of 5 · The project
How many windows?
Count openings, not panes. A bay unit counts as one opening.
Frame material
The second biggest driver after installation method.
Product tier and glass
Tier places you within the material’s own range. It is our reading of that range, not manufacturer pricing.
Installation
The single biggest swing in any window project.
These six are flagged in your result rather than priced: we have no reliable published figure for any of them.
Typical planning range for this specification
–
–low to higher-complexity–
Pushing the range up
Keeping it down
Could change this a lot
How this range is worked out
The steps behind the numbers above. The source for each figure is in the table below the calculator.
How firm is this range?
Saved scenarios (this browser)
Compare what-if A vs B without leaving the page. Nothing is uploaded.
Not included
The numbers behind the calculator
| Input | What we use | Source |
|---|---|---|
| Vinyl, per window installed | $450–$1,600 | Low end: Thompson Creek Windows, basic white vinyl double-hung, installed (Mid-Atlantic). High end: Pella by-material guide (2026) |
| Fiberglass or composite | $1,100–$2,200 | Pella (2026) |
| Wood or clad wood | $1,100–$2,200+ | Pella (2026); wood can exceed this range |
| Product tier | Lower, middle or upper band | UpgradeWorth reading of the same material range. An editorial interpretation, not manufacturer pricing |
| Style adjustment | Sliding 0%, casement +20% | Thompson Creek Windows describes slider pricing as comparable to double-hung and reports a 10% to 20% casement premium. This calculator uses 0% for sliding and the upper end, 20%, for casement. These are planning assumptions from one regional installer, not national price averages. |
| Triple-pane premium | +10% to +40% | Published estimates vary: approximately 10–15% (Pella) and 25–40% (Thompson Creek Windows). Actual premiums depend on the product and configuration. |
| Full-frame premium | +$600 to +$1,000 per window | Published by installers in three markets: southeastern Michigan, Pittsburgh and Omaha. Market evidence from a handful of sources, not a national benchmark |
Totals are per-window figures multiplied by your window count and rounded to the nearest $100. We apply no volume discount, because published claims about them are not consistent. For a national reality check, the 2025 Cost vs. Value Report puts the average cost of replacing 10 double-hung windows with insulated low-E vinyl units, simulated divided lites and a custom-color exterior at $22,073. That is a higher specification than this calculator’s starting settings (10 vinyl double-hung inserts, standard tier, double-pane), which show a typical $7,400 to $13,100.
Holding a real quote that works out to about $1,500 a window? This calculator gives a planning range, not a verdict on a specific bid. Is $1,500 per window replacement fair? shows how to normalize that quote and decide whether to accept, negotiate or get another bid.
Three example estimates
This is what the calculator returns for three common projects. They show how the inputs move the range. They are not quotes.
| Project | Settings | Typical range | Low to high |
|---|---|---|---|
| 8 windows, budget refresh | Vinyl double-hung, builder grade, double-pane, insert | $3,600–$7,700 | $3,600–$12,800 |
| 10 windows, the calculator’s starting settings | Vinyl double-hung, standard, double-pane, insert | $7,400–$13,100 | $4,500–$16,000 |
| 10 windows, fiberglass with triple-pane glass | Fiberglass double-hung, standard, triple-pane, insert | $16,200–$25,500 | $12,100–$30,800 |
Switching the starting settings from insert to full-frame moves the typical range for those 10 vinyl windows to $14,400–$22,100, because full-frame adds $600 to $1,000 per window.
Limitations
Several real cost drivers have no consistent, well-sourced figure, so the tool flags them instead of inventing one: oversized and custom-shaped windows, upper-story access, brick and stucco openings, lead-safe work in pre-1978 homes, frame and sill repair, interior trim and finishing, permits, disposal fees and your local labor market. It also does not split the estimate into materials and labor, because published splits vary too widely to be useful.
Detailed guidance: window replacement cost, vinyl vs. fiberglass and insert vs. full-frame.
This is a planning estimate. Real prices depend on your home, your installer and your local market. Get at least three written quotes for the same specification before you commit.