How Much Do New Windows and Doors Cost in Westchester County? (2026 Guide)

Westchester County has some of the oldest housing stock in the New York metro area. The median year built in most towns falls between 1945 and 1960, and many homes in Bronxville, Tarrytown, and Hastings-on-Hudson date to the 1920s or earlier. That means a lot of original single-pane windows that leak air, rattle in the wind, and drive heating bills through the roof.

We list 115 window and door contractors across Westchester. Labor rates here run $60 to $100 per hour, which is 20 to 40% above national averages. The houses are the main cost driver though. Older homes frequently have non-standard window sizes, plaster walls that crumble during installation, and lead paint that requires certified abatement. A window that costs $600 to install in a 1990s colonial might cost $1,000 in a 1930s Tudor because the opening isn't standard and the trim work is more involved.

For a whole-house replacement of 15 windows, most Westchester homeowners pay between $9,000 and $24,000 depending on the frame material and glass type. High-end fiberglass or wood windows in Scarsdale or Bronxville can push that past $30,000.

The price you pay depends on where you live and how old your house is. Those two things drive cost more than the window brand.

Scarsdale and Bronxville have the oldest and largest homes in the county. Many are Tudor, Colonial Revival, or Arts and Crafts style with custom-shaped windows, arched transoms, and divided-light patterns that don't match any standard catalog size. Custom windows add 50 to 100% to the cost. A Scarsdale Tudor with 25 windows might run $40,000 to $60,000 for a full replacement with historically appropriate frames. The Scarsdale Board of Architectural Review also weighs in on exterior changes to homes in certain areas, which can limit your material choices.

Tarrytown and Sleepy Hollow sit in a historic district zone. If your home falls within the Tarrytown Historic District, exterior window changes need approval from the Landmark Preservation Advisory Commission. That usually means wood or wood-clad frames rather than vinyl. Plan for $1,500 to $2,100 per window instead of $800.

New Rochelle and White Plains have a mix of everything from 1920s bungalows to 1970s split-levels to newer condos. Pricing falls in the middle of county averages. Most homes here have standard-size openings, so off-the-shelf windows fit without modifications. A 15-window replacement in a New Rochelle colonial runs $10,000 to $18,000.

Yonkers and Mount Vernon have the most affordable window work in the county because homes tend to be smaller, lots are tighter (easier access for installers), and standard sizes are more common. Multi-family buildings are a different story since scaffolding or lift rental can add $1,000 to $3,000 to the project.

Northern Westchester (Somers, Yorktown Heights, Katonah) sees more extreme cold. Triple-pane glass is worth considering up here where heating oil or propane bills can hit $400 to $600 a month in January. Some installers in northern towns also charge a travel premium of $200 to $500 for the round trip from their shops in lower Westchester.

The glass matters more than the frame for energy savings. Here's how the options stack up in Westchester's climate.

Double-pane with low-E coating is the sweet spot for most homes. Low-E is a microscopic metallic layer that reflects heat back into the house during winter and blocks solar heat in summer. It adds about $200 to $400 per window compared to plain double-pane, but it cuts heating and cooling losses by roughly 25%. In a county where winter lows regularly hit the teens and summers push into the 90s, that adds up to roughly $350 to $465 in annual energy savings for a full house.

Triple-pane glass adds another sealed air gap (or argon-filled gap). It's about 40% more efficient than double-pane and costs $150 to $2,000 more per window depending on the frame. For most Westchester homes, triple-pane makes financial sense only if you're staying 15+ years and your current windows are single-pane. The payback period is 10 to 15 years on the incremental cost.

Argon gas fill between the panes slows heat transfer. Most quality double-pane windows come with argon standard now. Krypton gas is denser and performs better in triple-pane setups, but it costs more and the real-world difference in this climate is small.

One thing to know: low-E coatings come in different types. High-solar-gain low-E is better for north-facing windows (lets warming sunlight in). Low-solar-gain low-E is better for south and west windows (blocks summer heat). A good installer will spec the right coating for each side of your house instead of using the same glass everywhere.

There are 115 window and door companies in our Westchester listings. That's a lot of choices. Here's how to sort through them.

Brands matter, but less than you'd think. Andersen, Marvin, Pella, Harvey, and Renewal by Andersen are the names you'll hear most. The installer's quality matters more than the brand on the label. A perfectly good Andersen window installed badly will leak air and water. A mid-tier Harvey window installed correctly will perform well for 25 years.

Get three written quotes. Each should break out the cost of windows, labor, trim, disposal, and any structural work. If the quote is one line that says "15 windows installed: $14,000" with no detail, ask for a breakdown. You need to know what you're comparing.

Verify licensing. In New York, window installers should carry a Home Improvement Contractor license from the county. Ask for the license number and check it with the Westchester County Department of Consumer Protection at (914) 995-2155.

Check insurance. General liability and workers' compensation. Ask for the certificate. If a worker falls off a ladder on your property and the company doesn't have workers' comp, you're exposed.

Warranty specifics. Most window manufacturers offer a limited lifetime warranty on the glass and frame. The installer's labor warranty is separate and usually 1 to 5 years. Make sure both are in writing.

Avoid the big-box pitch. Companies like Renewal by Andersen spend heavily on marketing, and that cost gets passed to you. Their windows are good, but you'll typically pay 30 to 50% more for a comparable product installed by a local company. Get a quote from a local installer using the same brand for comparison.

The best time to schedule window replacement is late winter through early spring (February to April) or fall (September to November). Most installers are slower during these periods and may offer 5 to 15% off. Summer is peak season, and you'll wait longer for scheduling.

Windows can be installed in cold weather. Modern installation techniques use expanding foam and flashing tape that work fine down to about 20 degrees. The crew will work one window at a time, closing up each opening before moving to the next, so your house isn't exposed to the elements for long.

Lead paint is a real issue in Westchester. Any home built before 1978 likely has lead paint on window sashes, sills, and trim. Federal law (the EPA's RRP rule) requires contractors to be EPA Lead-Safe Certified when disturbing lead paint. Removing old windows in a pre-1978 home qualifies. The certification adds $130 to $170 per window in extra labor for containment, cleanup, and testing. On a 15-window project, that's $2,000 to $2,550 in additional cost.

Do not let an installer skip this. Lead dust from window removal is a serious health risk, especially for young children. Ask for the contractor's EPA Lead-Safe Certification number. If they don't have one and your home was built before 1978, hire someone else. The Westchester County Department of Health can answer lead safety questions at (914) 813-5000.