Window Replacement Cost Calculator

Replacement window costs per opening by frame material and region — insert versus full-frame, and where the energy savings actually land.

Your project

Finish level

Estimated total cost

$9,660 – $16,560

12 windows · Mid-range · National average

$805 – $1,380 per windows

Materials
$5,040 – $8,640
Labour
$3,024 – $5,184
Permits & fees
$336 – $576
Contingency (15%)
$1,260 – $2,160
Typical timeline
1–3 weeks of active work
Recouped at resaleAbout 62% of a mid-range spend
$8,128
  • National average pricing. Pick your region to adjust for local labour rates.
  • This is a planning range, not a quote. Get three itemised bids and compare the scope line by line — the cheapest bid is usually the one that left something out.

What the estimate includes

  • Window unit and installation
  • Removal and disposal of the old window
  • Interior and exterior trim to match
  • Caulking, flashing and insulation at the opening

What it does not include

  • Rot repair in the frame or sill
  • Changing the size of the opening
  • Lead-paint safe practices surcharge on pre-1978 homes
  • Custom shapes, bays and bows priced individually

What actually moves the price

  • Insert versus full-frame. Inserts drop into the existing frame and cost less; full-frame replacement removes everything to the studs and is the only correct choice if the frame is rotten.
  • Frame material. Vinyl, fibreglass and wood-clad are roughly a 1× / 1.7× / 2.5× progression for equivalent glass.
  • Glass package. Double versus triple pane, low-E coatings and gas fill matter far more to comfort and bills than the frame does.

How these estimates are built

  • Base costs are typical 2025–2026 US pricing per window at each finish level, drawn from national remodelling cost surveys and contractor bid data.
  • Your region multiplies that base — coastal metros run 30–40% above the national average and rural markets 15–20% below, almost entirely on labour rates.
  • The contingency is added on top of the base range rather than taken out of it, because that is how the money actually behaves on a job site.
  • The materials, labour and permit split shows how the mid-point of the range typically divides. It is a way to read a bid, not a second estimate.
  • Resale recoup figures follow national cost-versus-value patterns. No renovation returns more than it costs — treat the figure as a partial rebate on something you are buying for yourself.

Frequently asked questions

How much does window replacement cost per window?

$400–$700 per window for basic vinyl, $700–$1,200 for mid-range vinyl or fibreglass, and $1,200–$2,500+ for wood-clad and premium glass. Twelve windows therefore run roughly $5,000 to $30,000 depending on tier.

Do new windows pay for themselves in energy savings?

Rarely on energy alone — typical payback is 15 to 25 years. The honest reasons to replace are comfort, noise, rot, windows that no longer operate, and resale, where you recoup about 62%. Air sealing and attic insulation return far more per dollar.

Should I replace all my windows at once?

You get better per-window pricing on a whole-house job because mobilisation is fixed. But replacing the worst-facing or most-failed windows first is a legitimate way to phase the cost, and nothing about it harms the later phases.

Before you commit the budget, see it finished

Upload a photo and generate photorealistic versions of the finished space in any style. It is far cheaper to change your mind here than after the cabinets arrive.

Visualise the finished space

Material calculators for this project

Insulation CalculatorSquare footage and bag count for batt or blown-in insulation, with the R-value your climate zone actually calls for.Paint CalculatorEnter your room size and get the exact number of gallons to buy — walls, ceiling, and trim, adjusted for coats and openings.

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