Window replacement is one of the highest-ROI home improvements in Westchester, where heating costs and cold winters make energy efficiency a real factor. Here's what to budget in 2026.
Per-Window Costs in Westchester (Installed)
| Window Type | Cost per Window |
|---|---|
| Standard double-hung (insert replacement) | $600–$900 |
| Standard double-hung (full-frame replacement) | $800–$1,300 |
| Casement window | $700–$1,100 |
| Bay or bow window | $2,500–$5,000 |
| Picture window (large) | $800–$1,500 |
| Sliding glass door (double) | $1,800–$3,500 |
Questions? Westchester Home Improvements handles everything for you — permits, drawings, construction. Free estimates, no obligation.
📅 Get a Free EstimateInsert vs. Full-Frame Replacement
Insert (pocket) replacement: The new window fits inside your existing frame. Less disruptive, less expensive, but only works if the existing frame is in good condition with no rot.
Full-frame replacement: The entire window unit including frame is removed and a new one installed. Required when frames are rotted or when you're changing window size.
Energy Efficiency in Westchester's Climate
Westchester gets cold winters and hot summers. At minimum, replace with double-pane Low-E glass. Triple-pane adds another 10-15% in energy savings but costs 20-30% more. For most Westchester homes, quality double-pane is the right balance.
Tax credit note: Energy-efficient window replacements may qualify for federal tax credits under the Inflation Reduction Act. Verify with your tax preparer — the credit can be up to 30% of the cost.
What Goes Into an Accurate Estimate
Prices vary because every project is different — site conditions, material choices, existing structure quality, and access all affect the final number. A useful estimate requires an in-person visit to assess these factors. Quotes given over the phone without seeing the space are guesses, and guesses lead to change orders later. When we provide an estimate, we look at the actual conditions, measure precisely, and give you an itemized breakdown showing exactly where your money goes: materials, labor, permits, and any site-specific considerations.
The lowest bid is not always the best value. In Westchester's market, an unusually low quote often means something is missing — lower-grade materials, an unlicensed crew, no insurance coverage, or a plan to add costs through change orders once work begins. We encourage every homeowner to get multiple quotes and compare what's actually included, not just the bottom-line number.
Why Itemized Pricing Protects You
An itemized estimate lets you see and control costs. You can see where choosing a different material tier saves money, and where it doesn't make sense to cut corners. It also prevents the most common dispute in home improvement: surprise charges. Every WHI estimate is free, done in person, and broken out line by line so there are no surprises and no vague allowances that balloon during the project.