Costs vary significantly by window style, frame material, and installation complexity. The table below shows installed costs (materials + labor) based on aggregated data from contractor surveys and industry pricing databases.
| Window Type | Cost Installed | Lifespan | Best For |
|---|---|---|---|
| Vinyl single-hung | $250–$450 | 20–30 yrs | Budget-conscious, rentals |
| Vinyl double-hung | $350–$600 | 25–30 yrs | Most homes (best value) |
| Wood double-hung | $500–$1,300 | 30–50 yrs | Historic homes, premium look |
| Fiberglass | $500–$1,500 | 30–50 yrs | Extreme climates, low maintenance |
| Casement | $400–$700 | 25–35 yrs | Best air seal, modern style |
| Bay / Bow | $900–$7,100 | 25–35 yrs | Feature windows, added light |
| Aluminum | $240–$800 | 20–30 yrs | Commercial, modern aesthetic |
Source: Aggregated from Angi (Dec 2025), NerdWallet (Dec 2025), This Old House survey (Nov 2025), and HomeGnome (Dec 2025) data.
| Project Size | Typical Range | Average | Notes |
|---|---|---|---|
| 1–5 windows | $1,000–$5,000 | $2,500 | Small projects, highest per-window cost |
| 6–10 windows | $3,500–$10,000 | $6,000 | Partial house, good volume pricing |
| 11–15 windows | $6,000–$14,000 | $9,750 | Most of house, 10–15% volume discount |
| 16–20 windows | $8,000–$18,000 | $13,500 | Full house, best per-window rate |
| 20+ windows | $11,000–$25,000+ | $18,000 | Large homes, negotiate hard |
To qualify, your windows must be Energy Star certified and you'll need the manufacturer's Qualified Product ID (QMID) number. The credit resets annually, so if you replace windows over multiple tax years, you can claim up to $600 each year. This is separate from the Residential Clean Energy Credit (25D) for solar panels, which expired for homeowner-owned systems at the end of 2025.
Many states offer additional rebates on top of the federal credit. Check your state energy office or DSIRE database for local incentives.
Window replacement costs in 2026 depend on three primary factors: window material and style, glass technology, and installation complexity. Labor accounts for roughly $100–$300 per window (or $47–$65/hour), though this jumps to $600+ for complex installs like second-story bay windows or historic homes requiring custom frames.
Material prices have stabilized compared to the post-pandemic spikes of 2021–2023, settling about 15–20% above pre-2020 levels. The biggest current cost driver is labor — skilled window installers are in high demand, and availability varies by region. Coastal metro areas like San Francisco, New York, and Boston run 20–40% above national averages.
About 70% of residential window replacements use the retrofit (pocket) method, where the new window fits inside your existing frame. This is faster (30–60 minutes per window), cheaper, and less disruptive. Full-frame replacement is necessary when the existing frame is rotted, water-damaged, or you want to change the window size. It involves removing everything down to the studs and costs 30–50% more.
If your home was built after 1970 and the frames are in decent shape (no soft spots, no water stains), retrofit is almost always the way to go. Have your contractor inspect the frame during the quote visit.
Beyond the window and installation, budget for these commonly overlooked expenses: old window disposal ($200–$1,000+ for a full house), building permits ($50–$500 depending on your municipality), lead paint or asbestos abatement in pre-1980 homes ($500–$3,000), and interior trim repair or painting ($50–$150 per window). Always request a detailed written estimate that breaks out each line item.
Some contractors include disposal and trim in their quote; others don't. This is one reason bids for the "same" project can look so different — make sure you're comparing apples to apples by asking for itemized pricing.
Compare estimates from vetted local window installers in your area