Window Replacement Cost

How much does it cost to install or replace windows?

Windows are usually exterior facing and must provide for weather and intrusion sealing as well as satisfy personal taste.

The cost to replace average windows depends upon type, number of units, material and finish grade, special preparation, and labor rate. 

Cost breakdown

Typical material choices are presented in the following table. The Cost relationship is based on an average window of the indicated material.


No rust

Thinnest frame

Lightest weight

Thermal transfer

Types limitation

Color matching difficulty


No rust, no paint

Low or no maintenance

Invisible scratches

Frame width

Color matching difficulty



Appearance and style

Easy color matching

No rust


Wood rot


The typical cost per single installed 48 inch wide x 48 inch tall (except Bay Window) wood-frame unit of good quality products with insulating glass include:

PictureUnblocked viewNon-opening$888

Low leakageExterior cleaning
SlidingOpeningSome view blockage$1,091

Interior cleaning

SashOpeningSome view blockage$1,245

Interior cleaningHeavier to open
CasementWide openingOpens outward$1,489

Interior cleaningSome view blockage
BayAdds interior spaceExterior projection$2,659

OpeningSome view blockage

Interior cleaning

Additional considerations and costs

  • Each related Cost Guide reviews typical upgrades and accessories.
  • The prices here are for provider service in their immediate area.
  • Not included are taxes or permit fees.
  • If neccesary, the opening of a wood-framed exterior wall will cost around $55 to $75 per square foot.
  • The homeowner should be informed during provider inspection of any repair or structural modification issues.
  • The replacement of 3 or more windows should result in a reduction of these unit prices.
  • In some localities a subsidy for efficiency upgrade may be available.

Do it yourself (DIY)?

  • Window replacement may not be suitable for DIY as it requires high carpentry skills, and typically comes with a critical closure deadline.


  • Craftsman Estimator Costbook, 2015.
  • Vendor Web sites of the Home Improvement sector.
  • Popular DIY Web sites.

Typical costs


(wood sliding window replacement)

Low: $265 (aluminum sliding window replacement - DIY)
High: $2,659 (wood bay window replacement)

Cost to install or replace windows varies greatly by region. Get free estimates from window installers in your city.


Window Replacement
$265 - $2,659

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