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Restore Old Windows and Doors: Revive the Finish

It's easy to fix the finish on windows when it begins to flake and fade. Scraping, sanding and restaining will only take about one hour. And your natural finish will look like new.

By the DIY experts of The Family Handyman Magazine

Restore Old Windows and Doors: Revive the Finish

It's easy to fix the finish on windows when it begins to flake and fade. Scraping, sanding and restaining will only take about one hour. And your natural finish will look like new.

By the DIY experts of The Family Handyman Magazine

How to refinish wood windows

Wood windows with a natural finish on the inside look great when they're new, but moisture, temperature swings and harsh sunlight eventually make the varnish fade and flake away, especially along the bottom of the window sash and on the sill. It looks like an intimidating job, but usually the only part of the window that needs work is along the bottom—the rest of the sash and trim can just be lightly sanded and recoated.

The first step is to match the stain and finish. The easiest way to do this is to take a piece of the trim to a paint store to have it matched (Photo 1).

Scrape any worn varnish off (Photo 2), then sand with 120- or 150-grit sandpaper. In partially damaged areas, feather the sanding into the undamaged areas, then lightly sand the rest of the piece to prepare it for a new finish (Photo 3). You don't need to sand and recoat the entire window if only a few pieces need it—just stop at an edge or corner.

Stain the wood (Photo 4) and apply two coats of outdoor-grade finish. If the gloss doesn't match the older varnish, buff it lightly with extra-fine steel wool or pad to dull it.

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Required Tools for this Project

Have the necessary tools for this DIY project lined up before you start—you’ll save time and frustration.

    • Paint scraper
    • Pry bar

Required Materials for this Project

Avoid last-minute shopping trips by having all your materials ready ahead of time. Here's a list.

    • Sandpaper, 120- or 150-grit
    • Stain
    • Varnish

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