Window Replacement Cost: Complete Guide by Window Count, Material, and Glass Type

Window replacement runs $300 to $2,500 per window depending on frame material and size, averaging around $750 per window installed. Most whole-house projects total $3,400 to $11,900, with the total depending mainly on two things: how many windows you're replacing and what material you choose. This guide breaks the cost down by both, plus glass upgrades like triple-pane, so you can budget for your specific project rather than a generic national average.

Cost by Number of Windows

Whole-house window replacement scales directly with how many windows you're doing, so this is the fastest way to ballpark your project. Figures assume standard double-hung vinyl windows, professionally installed:

Average cost per window is around $750, and most whole-house projects fall between $3,400 and $11,900 total. A standard three-bedroom home with 10 to 12 windows typically lands at $7,000 to $9,000 for a full replacement. Replacing every window at once often lowers the per-window price, since installers can offer volume discounts on labor and material ordering, so it's worth asking about bundled pricing even if you're only planning to do half the house right now.

Cost by Frame Material

Vinyl is the standard choice for a reason: it balances cost, durability, and insulation better than the alternatives. Custom finishes, oversized openings, or new-construction framing (versus a standard replacement in an existing opening) typically add 25 to 50% over these baseline figures.

Glass Type: Double-Pane vs. Triple-Pane

Standard replacement windows come with double-pane glass by default. Upgrading to triple-pane, or adding Low-E coatings and gas fill, typically adds $100 to $400 per window on top of the frame cost. The upgrade cuts noise and heating/cooling loss more than double-pane alone, worth it in colder climates or on street-facing windows, less critical on interior-facing or already-shaded windows where the payback is slower.

What Affects the Cost

Window count. The biggest lever, as the table above shows, and the one place bundling actually saves you money.

Frame material. The second biggest lever. Choosing composite or fiberglass over vinyl can double or triple the per-window cost.

Size and shape. Standard-sized double-hung or slider windows are cheapest. Bay windows, custom shapes, and oversized openings cost significantly more per unit.

Installation type. A retrofit into an existing, properly sized opening is cheaper than a full-frame replacement that involves removing the surrounding trim and framing, which is sometimes necessary if the original frame is damaged or rotted.

Glass upgrades. Triple-pane, Low-E coatings, gas fill, and impact-rated glass all add cost per window, as noted above.

Replace All at Once or Room by Room?

Replacing every window in one project is more disruptive but usually cheaper per window, thanks to volume pricing on both materials and labor. Doing it room by room or in phases spreads the cost out but typically means paying full per-window price each time, and multiple separate service calls.

Whole-house replacement makes the most sense when:

A room-by-room approach makes more sense when only a few windows are actually failing, or budget needs to be spread across a longer timeline.

Getting an Accurate Quote

Have ready: how many windows you're replacing, their approximate size, your current frame material (if known), and whether you're open to a material change or want a like-for-like swap.

Frequently Asked Questions

How much does window replacement cost?

Average is about $750 per window, with most whole-house projects totaling $3,400 to $11,900. A standard 3-bedroom home with 10 to 12 windows typically runs $7,000 to $9,000.

How much do vinyl windows cost?

$100 to $900 per window installed, the most common and generally best-value frame material.

How much more does triple-pane glass cost?

Typically $100 to $400 more per window than standard double-pane, depending on the coatings and gas fill included.

Is it cheaper to replace all my windows at once?

Usually yes, per window. Installers commonly offer volume pricing on labor and material ordering for whole-house projects.

How much does it cost to replace windows in a 3-bedroom house?

Most 3-bedroom homes have 10 to 12 windows, typically running $7,000 to $9,000 for a full replacement with standard vinyl double-hung windows.

What's the difference between a retrofit and a full-frame replacement?

A retrofit reuses the existing frame and is cheaper. A full-frame replacement removes the frame down to the studs, needed when the original frame is damaged, and costs more due to the added trim and framing work.

Bottom Line

Most homeowners land around $750 per window, or $7,000 to $9,000 for a typical whole-house project. Window count and frame material move that number the most, count because it's a straight multiplier, material because the spread between aluminum and composite or fiberglass is wide. Get quotes for your actual count and preferred material rather than relying on a single national average.

Home Improvement & Remodeling

Related reading

National averages are useful for planning. Verify pricing against a quote for your home before treating any range as final.