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Window Replacement Cost Calculator

Window quotes are usually given per window installed, which makes them look comparable when they are not.

Last updated Free, no sign-upHow it works

Your inputs
The windows
Location

Labor rates and prices vary enough by state to move an estimate substantially.

Optional. Used only to pick your state out of published labor and price tables. We never ask for a street address and nothing is stored.

Use this if you would rather not enter a ZIP code.

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Estimated window replacement cost: $6,700, ranging from $4,750 to $9,900.

Estimated window replacement cost

low confidence
$6,700Supplied and installed, before contingency
$4,750 lowhigh $9,900

What makes up the typical figure

  • Vinyl double-hung — 10 windows$4,200
  • Installation labor$1,950
  • Permit and inspection$280
  • Everything else$220
  • United States average
  • +10% contingency advised
  • Assumptions 2026.07.1

Why low: no state was resolved, so national averages were used; the modeled range spans about 77% of the typical value.

Key figures

Installed cost per window
$666($473 – $988)
Window unit cost
$420($250 – $700)
Estimated labor
26 hours
Heating degree days locally
4,917Unweighted mean of state degree days (2021–2025 mean); no state resolved.

Cost breakdown

Estimated cost of each component, with low, typical, and high values.
ComponentLowTypicalHigh
Vinyl double-hung — 10 windowsMaterialsDouble pane, low-E (standard).$2,500$4,200$7,000
Installation laborLabor26 hours at $74/hr billed.$1,100$1,950$3,500
Old window disposalRemoval$120$220$400
Permit and inspectionPermit$100$280$700
Estimated window replacement cost$4,750$6,700$9,900
Recommended contingency (10%)Rot in the sill or framing is common and is only visible once a window is out. Full-frame work finds it more often, because it opens more up.$480$670$990
Total to budget$5,230$7,370$10,890

The low and high columns above will not add up to the headline range. Each line has its own uncertainty, and every line landing at its worst case at the same time is unlikely, so the total combines them as partially independent rather than summing the extremes.

What moved your estimate

  • Insert installation — decreases the estimate

    Keeps existing trim and avoids opening the wall, which is why it is the default. It only works if the existing frame is square and sound.

How this number was produced
  1. Window units10 × $420 × 1 glazing$4,200
  2. Labor10 × 2.3 hr × 1.15 access26 hours
  3. Totalunits + labor + disposal + permit$6,656

Adjustments applied

  • Regional labor — national×1.00

    National 47-2031 Carpenters mean wage of $31.55/hr (BLS OEWS May 2025), times the contractor burden multiplier.

  • Double pane, low-E (standard)×1.00

    Standard low-emissivity double glazing.

  • Insert replacement×1.00

    The new window fits inside the existing frame. Cheaper and faster, but you lose an inch or two of glass on each side.

  • Window access×1.15

    Mix of ground and upper floors

Notes and sources2 notes, 2 sources

Worth knowing

  • Window prices scale with size, and this calculator assumes typical residential dimensions. An oversized picture window or a custom shape can cost several times a standard double-hung.
  • Energy savings from replacing functional windows are usually modest. Replacement is more often justified by rot, failed seals, operation, or noise than by the utility bill.

Sources

  • U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics (OEWS), State cross-industry estimatesprimaryMay 2025retrieved 2026-07-31
  • PlainTotal editorial baseline, reviewed against publicly advertised supplier pricing, manufacturer specifications, and published trade guidanceassumption2026 national baselineretrieved 2026-07-31

An insert into a sound frame and a full-frame replacement that opens the wall are different jobs with different risks, and the glazing package can move the price by half again.

Methodology

How this calculator works

Unit cost and glazing

Each window is priced by frame material and style at typical residential dimensions, then multiplied by a glazing factor: standard low-E double glazing as the baseline, about 28% more for triple, about 45% more for impact-rated.

Labor comes from the Bureau of Labor Statistics mean wage for carpenters in your state times a contractor burden factor, with installation hours by window type and a multiplier for upper-floor access. Full-frame replacement is modeled at 40% more labor than an insert.

What drives the difference between quotes

Ask any bidder which installation method they have priced. A quote for inserts will always beat a quote for full-frame, and they are not the same job — full-frame is the only option when the existing frame has rot, and it preserves glass area that an insert gives up.

Also ask what happens if rot is found. It is common enough that a contract should say who pays and at what rate.

Location and data

Where the numbers come from

Location is optional, and we only ask for a ZIP code or a state — never a street address. A ZIP code is matched to its state using published postal prefix ranges, and that state is used to look up labor and price rows in the tables below. If you leave it blank, or your ZIP cannot be matched, the estimate falls back to a national average and says so on the result.

Nothing you enter is transmitted or stored. The calculation runs entirely in your browser, and the only place your inputs appear is in the page URL, so you can bookmark or share a result if you choose to.

  • primaryMay 2025v2025.05

    U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics (OEWS), State cross-industry estimates

    Hourly mean wage (H_MEAN) for each trade. These are employee wages, not billed contractor rates. Billed rates are derived in the engine by applying a documented burden-and-overhead multiplier; see docs/calculator-methodology.md.

  • assumption2026 national baselinev2026.07.1

    PlainTotal editorial baseline, reviewed against publicly advertised supplier pricing, manufacturer specifications, and published trade guidance

    These are NOT published statistics. No public agency publishes a national residential material price index at this granularity, and proprietary construction cost databases cannot be reproduced. Each figure is a documented editorial baseline for material only, excluding labor, delivered to a metropolitan supply yard, before regional adjustment and before sales tax. They are the least certain inputs in the project calculators and are the first thing to replace with surveyed data. Labor hours are crew-hours for a competent crew under normal conditions.

Full detail on every dataset is on the data sources page. Spotted something wrong? Report incorrect data.

Calibration

The judgements behind this estimate

These are the figures we chose rather than measured. For each one we record the range of values found across references, what we selected, and why — because an estimate you cannot interrogate is not much better than a guess. The 1 marked high risk are the ones most likely to be wrong and most consequential when they are.

  • Contractor burden multiplierhigh risklow confidence
    Observed range
    1.8 — 3 (typical 2.35)multiple of employee wage
    Why this value
    Published contractor pricing guidance and trade-association break-even material put the wage-to-billed-rate multiplier between roughly 1.8x for an owner-operator with minimal overhead and 3.0x for an insured company with vehicles, office staff, and target profit. We narrowed the shipped band to 2.0-2.75 because the extremes describe business models a homeowner rarely encounters: below 2.0 usually means an uninsured single operator, above 2.75 usually means commercial or specialty work. Roofing sits at the top of the band because workers' compensation for roofers is several times the rate of other trades.
    Applies to
    United States, all states. The multiplier itself is not regionally adjusted — regional variation enters through the underlying BLS wage, not through the burden.
    Known limits
    The single largest lever in every project calculator. A 10% error here moves every project estimate by roughly 6%.
    Sources
    Recorded before the richer schema; see rationale for provenance
    Last verified
    2026-07-31 · reviewed annual
  • Recommended contingency by job charactermedium confidence
    Observed range
    0.05 — 0.25 (typical 0.15)share of project cost
    Why this value
    Published renovation guidance clusters at 10% for like-for-like replacement, 15% where hidden damage is common, and 20% for work crossing several trades. Values below 10% assume a job where nothing is opened up; values above 25% are usually quoted for historic or structurally compromised properties, which is outside what these calculators model.
    Applies to
    United States. Older housing stock warrants the upper figure regardless of region.
    Known limits
    No additional limitation recorded.
    Sources
    Recorded before the richer schema; see rationale for provenance
    Last verified
    2026-07-31 · reviewed annual
  • Regional material price sensitivitymedium confidence
    Observed range
    0 — 0.5 (typical 0.25)share of the local labor differential
    Why this value
    Building materials are nationally traded commodities, so the floor case is 0.0 — no regional variation at all beyond freight. The ceiling case of 0.5 would imply materials track local wages half as strongly as labor does, which overstates it: what actually varies locally is freight, yard margin, distribution labor, and sales tax, not the commodity. We selected 0.25 as a single point rather than a band because modelling it as uncertain would double-count uncertainty already carried by the material price band itself.
    Applies to
    Continental United States. Alaska and Hawaii almost certainly warrant a higher figure because of shipping, and are not currently distinguished.
    Known limits
    No additional limitation recorded.
    Sources
    Recorded before the richer schema; see rationale for provenance
    Last verified
    2026-07-31 · reviewed annual

Cost factors

What changes the price most

Frame material
Vinyl is the value option; clad wood can cost close to three times as much for similar thermal performance.
Glazing package
Triple glazing adds roughly 28%, impact-rated roughly 45%. One is optional in most climates, the other is often code-mandated near the coast.
Installation method
Full-frame costs meaningfully more than an insert, and finds more problems.
Window size and shape
Not modeled. Oversized, arched, or custom units can multiply the unit price.
Access
Upper-floor windows need ladders or staging on both sides.
Quantity
Per-window pricing usually improves on a whole-house job.

Questions

Frequently asked

How much does it cost to replace a window?

Installed, a standard vinyl double-hung insert commonly lands between $600 and $1,200 per window. Clad wood, triple or impact glazing, and full-frame installation can push a single window past $2,500. Whole-house jobs usually earn a better per-unit rate.

Are new windows worth it for energy savings?

Rarely on energy alone if the existing windows still work. Replacing single-pane windows in a cold climate has a real effect; replacing functional double-pane windows almost never pays back within the life of the new units. Rot, failed seals, difficult operation, and noise are the stronger reasons.

What is the difference between insert and full-frame replacement?

An insert fits a new window inside the existing frame, keeping interior and exterior trim intact. Full-frame removes everything back to the rough opening, which allows inspection and re-flashing and preserves the original glass area. Inserts are cheaper; full-frame is necessary when the frame is compromised.

Is triple glazing worth it?

In a cold climate with a long heating season, it can be. In a mild climate it usually is not — the calculator flags this when your local heating degree days are low. Triple glazing does noticeably reduce noise, which may matter more than the energy case.

Do I need a permit to replace windows?

Often yes, particularly for full-frame replacement or any change to the opening size, and always in hurricane zones where impact rating is enforced. Like-for-like inserts are exempt in some jurisdictions. Check with your local building department.