Window Replacement Cost Guide

Window replacement cost is one of the first questions homeowners ask, and the honest answer is that it depends heavily on how many windows you’re replacing, what they’re made of, and what kind of glass sits inside the frame. This guide breaks down real U.S. cost ranges per window and for a whole-house project, along with the factors that move the price the most.

Average Cost Per Window

A single standard-size replacement window, installed, typically falls somewhere between $300 and $2,500 depending on frame material and glass package. The table below shows typical per-window ranges by material.

Frame Material	Cost Range (Installed, Per Window)
Vinyl	$300 – $1,100
Aluminum	$400 – $1,100
Fiberglass	$600 – $1,500
Wood-clad	$900 – $2,500
All-wood	$800 – $2,200

Specialty shapes cost more than standard rectangular units. Bay and bow windows, which combine multiple angled panels into one unit, typically run $1,500 to $5,000 installed. Egress windows, which are cut into a basement wall to meet bedroom safety codes, often run $2,000 to $5,500 once excavation and window well costs are included.

Whole-House Replacement Cost

Most homes have somewhere between 10 and 20 windows, and contractors often offer a modest per-window discount when replacing many units in a single visit, since setup and travel time are spread across more work. Typical whole-house totals look like this:

Home Size / Window Count	Typical Total Cost
Small home, 8–10 windows (vinyl)	$3,000 – $9,000
Mid-size home, 12–16 windows (vinyl or fiberglass)	$6,000 – $16,000
Larger home, 18–24 windows (mixed materials)	$10,000 – $30,000
Larger home, all-wood or wood-clad	$18,000 – $45,000+

These figures assume standard installation into existing openings. Custom sizes, historic-home matching, or extensive full-frame work with hidden rot repair can push totals higher.

Per-Window vs. Whole-House Pricing

Contractors price jobs in two common ways. Per-window pricing charges a set rate for each unit, which makes sense for smaller jobs or when replacing only a few windows at a time as budget allows. Whole-house or bundled pricing quotes one total for the entire project, often with a small per-window discount built in, and is more common when a homeowner is committing to replace every window at once. Ask each contractor which pricing model they use and whether the quote is truly all-in, including trim, disposal, and permit fees, or whether those are billed separately.

What Drives the Price Up or Down

• Glass package: Double-pane glass with a low-E coating is now standard on most replacement windows. Triple-pane glass, argon or krypton gas fills, and additional coatings for noise or UV reduction add cost but improve performance.
• Installation method: Insert (pocket) replacement, which fits into the existing frame, is generally less expensive than full-frame replacement, which removes the window down to the rough opening and allows for repair of any hidden rot or water damage.
• Window count and timing: Bundling all windows into one project typically costs less per unit than spreading the work out over several smaller jobs.
• Trim and finish work: Matching existing interior trim, especially in older homes, or adding new exterior capping can add labor hours.
• Access and site conditions: Second-story windows, windows above stairwells, or units that require scaffolding typically cost more to install than ground-floor windows.
• Regional labor rates: Installation labor costs vary significantly by metro area and can be one of the biggest swing factors in a final quote.

Hidden Costs to Ask About

A few line items are easy to overlook when comparing estimates. Ask whether the quote includes removal and disposal of old windows, since older units can sometimes contain lead paint that requires special handling. Ask whether permit fees are included or billed separately, and whether the contractor is responsible for pulling the permit. Finally, ask what happens if the crew discovers rot, mold, or structural damage once the old window is removed, since unplanned repairs can add to the final bill if they aren’t addressed in the original agreement.

How to Get an Accurate Quote

Because window replacement costs vary so much based on materials, glass, and site conditions, the most reliable way to budget is to request quotes from more than one independent contractor for the exact same scope of work. Ask each one to itemize window brand and model, glass package, frame material, labor, permits, and cleanup so you’re comparing true apples-to-apples numbers rather than a single lump sum. Requesting quotes from a few independent contractors and comparing them side by side is generally the fastest way to understand what a fair price looks like for your specific home.