Replacing all the windows in a typical house costs roughly $8,000 to $12,000 for a single-story home with 10 to 15 windows and $12,000 to $24,000 for a two-story home with 15 to 30 windows, according to Fixr’s January 2026 window cost data. Fixr puts the average at $800 per installed window, within a range of $450 to $1,200. That per-window figure is the whole pricing model. What changes your total is how many windows you have, which material you pick, and whether the frames are replaced too.
Our window replacement cost guide covers the per-window decisions in depth. This page does the other half: turning a per-window price into a whole-house budget.
Whole-House Cost by Number of Windows
Count every opening, including basement, bathroom, and stair-landing windows. Then multiply by a per-window price. The table below uses three per-window prices from Fixr’s published range: its $450 low end, its $800 average, and its $1,200 high end. The totals are our arithmetic, and they line up with the count-based ranges Fixr itself publishes.
| Windows | At $450 each | At $800 each | At $1,200 each |
|---|---|---|---|
| 10 | $4,500 | $8,000 | $12,000 |
| 15 | $6,750 | $12,000 | $18,000 |
| 20 | $9,000 | $16,000 | $24,000 |
| 25 | $11,250 | $20,000 | $30,000 |
Fixr’s own count bands show the same shape: $4,950 to $24,000 for 11 to 20 windows and $9,450 to $30,000 for 21 to 25.
Sources disagree, and the gap is worth knowing about. Bob Vila’s window cost page, last updated June 2024, lists 10 windows at $2,000 to $11,500 and 20 windows at $4,000 to $23,000, which implies a floor of $200 per window. Pella, a manufacturer, lists vinyl at $800 to $1,600 installed per window, which would put 10 vinyl windows at $8,000 to $16,000 on our arithmetic. Treat a quote under about $450 per window with suspicion, and expect brand-name products to start near Pella’s range.
Whole-House Cost by Home Size
Window counts vary by design, so size is only a rough guide. Fixr says single-story homes commonly have 10 to 15 windows and two-story homes 15 to 30. A Connecticut builder’s guide, as shown in a search summary, estimates 8 to 12 windows at 1,500 sq ft, 10 to 15 at 2,000 sq ft, and 13 to 19 at 2,500 sq ft. We did not verify that source, so use it only as a starting count and then walk the house.
| Home size | Estimated windows | Total at $800 each (our arithmetic) |
|---|---|---|
| 1,500 sq ft | 8-12 | $6,400-$9,600 |
| 2,000 sq ft | 10-15 | $8,000-$12,000 |
| 2,500 sq ft | 13-19 | $10,400-$15,200 |
A house with several large picture windows or a wall of glass costs more than its count suggests, while a house full of small double-hungs costs less.
What Moves Your Total
Fixr says labor is about 30% of a window job, at $150 to $300 per standard window and up to $800 for large bay or bow units. A few other line items from the same source:
- Bay windows: $900 to $4,500 each.
- Glass upgrades: $100 to $800 per window.
- Permits and inspections: $50 to $300.
- Single-hung versus casement: Fixr lists single-hung at $250 to $700, double-hung at $300 to $1,000, and casement at $400 to $1,200.
So a house with two bay windows can add several thousand dollars to the count-based totals above. If your plan includes a bay, price it separately from the rest. For the material choice, including how vinyl, fiberglass, and wood differ, see vinyl vs wood vs fiberglass windows cost.
Do It All at Once or in Phases?
Doing everything at once means one mobilization, one disposal run, and matching products. We expect a volume discount, but we could not find a published percentage, so ask each contractor to price the full job and a phased job side by side and see what the difference actually is.
Phasing makes sense when cash is tight. Start with the windows that fail worst: rotted frames, broken seals, and the west-facing ones that take afternoon sun. Keep the same product line for later phases so trim and color match, and get the later prices in writing, because manufacturer lists change.
Will New Windows Pay for Themselves?
Mostly not through energy savings. The Department of Energy’s consumer guide to efficient windows says upgrading to ENERGY STAR windows can save as much as 7% to 15% or more on annual household energy bills, depending on location and the windows being replaced. As an illustration only, assuming a $2,000 yearly energy bill, that is $140 to $300 a year. Against a $12,000 job, our arithmetic gives a payback of 40 to 86 years. Fixr cites a resale return of 60% to 85% for new windows. Our new windows energy savings guide runs this in more detail.
The honest case for replacing is comfort, failed seals, rot, noise, and ease of operation, not the utility bill.
How to Compare Whole-House Quotes
- Ask for a per-window line list. Every window should show size, style, glass package, and installed price, so you can compare bids line by line.
- Confirm the method per window. Insert versus full-frame changes the price and what gets inspected.
- Check what is excluded. Interior trim, exterior capping, rot repair, and disposal are the usual surprises.
- Get three bids with identical specs. Our contractor quote red flags list covers deposits and pressure tactics.
You can also run your own numbers in our window replacement cost calculator. If the exterior is next on your list, the same logic applies to siding; see siding replacement cost.
Bottom Line
Count your windows, then multiply by $450 to $1,200 each, with $800 as a middle estimate. That gives about $8,000 for 10 windows, $12,000 for 15, $16,000 for 20 and $20,000 for 25. Add bay windows, glass upgrades, and permits on top, and expect the final number to move with material and installation method. Get three itemized quotes, and treat energy savings as a small bonus.
FAQ
How much does it cost to replace all windows in a 2,000 sq ft house?
At Fixr’s $800 average, a 2,000 sq ft house with 10 to 15 windows comes to about $8,000 to $12,000 (our arithmetic). Using Fixr’s full range of $450 to $1,200 per window, the spread is $4,500 to $18,000. Your count and material decide where you land.
How many windows does the average house have?
There is no official count. Fixr gives 10 to 15 for single-story homes and 15 to 30 for two-story homes. A search summary of a Connecticut builder’s guide gave 10 to 15 for a 2,000 sq ft house. Count your own openings before you ask for quotes.
Is it cheaper to replace all windows at once?
Probably, because crews and disposal are shared across the job, but we found no published discount figure. Compare a full-job quote with a phased quote from the same contractor to see the real difference.
Does replacing all the windows raise the home’s value?
Fixr cites a return of 60% to 85% of the project cost at resale, depending on materials. That is one cost-data site’s estimate, not a promise for your market. Applied to a $12,000 job, our arithmetic gives $7,200 to $10,200 recovered.