Window Maintenance

Our window maintenance tips can help you keep your home cost efficient, safe & cozy.

Foggy window of a sunroom

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How to Repair Fogged Windows in Your Home

No one likes looking at foggy, milky windows. Whether it’s active moisture between the panes or the residue left behind from the latest flare-up, fogged windows not only detract from your home’s curb appeal, but they could even be an indication of an energy-efficiency problem. Luckily, you don’t have to live with murky windows. They’re totally fixable, and here is how you can bring your windows back from the mist.

The 5 Best Window Cleaners (2024 Review)

A specialized cleaner can remove dirt and grime from your windows. Here are the top window cleaners available on Amazon.

The 5 Best Glass Cleaners (2024 Review)

Remove dirt and grime from any glass surface with a high-quality cleaner. In this review, the This Old House Reviews Team researched the five best glass cleaners on Amazon to help you find the product that’s right for you. The products included in this article are available at various home improvement stores, local home centers, and online retailers like Amazon.

How to Prevent Condensation on Windows

Window condensation is an ideal breeding ground for mold and mildew. Read this guide to prevent these potentially harmful species from entering your home.

5 Easy Ways to Remove Scratches from a Glass Window

Dealing with scratches on your glass windows? We’ve rounded up 5 methods for removing scratches from glass quickly and easily. Read this guide to learn more.

Easy Fixes for Drafty Windows and Doors

Read these 8 things you can do yourself to keep warm inside your home.

How to Replace a Broken Windowpane

Ask This Old House general contractor Tom Silva replaces a broken pane in a basement window

How to Repair Damaged Window Sash Cords

Ask This Old House general contractor Tom Silva helps a homeowner fix window sash cords to keep her double hung window in balance

How to Repair a Window Muntin

When an errant sash lock mangles a wood window, here’s how to make the damage disappear

How to Replace Antique Window Sash Balancers

Ask This Old House general contractor Tom Silva helps a homeowner give his antique window a lift by installing new sash balancers.

How to Repair Stuck Sash Windows

This Old House general contractor Tom Silva shows how to free a painted-shut window

How to Clean Windows Like a Pro

Looking for the best window washing solutions? Follow our DIY window cleaning tips.

Filling Rotted Trim with Two-Part Epoxy

Durable and flexible epoxy is the best way to restore crumbling woodwork

How to Repair Sash Windows

How to preserve old windows with putty, epoxy, and patience

How to Repair Exterior Shutters

In this how-to video, This Old House general contractor Tom Silva breathes new life into an old, broken window shutter

How to Replace a Basement Window

In this how-to video, This Old House general contractor Tom Silva puts in a new basement window

Pro Guide to Windows: Dos and Don'ts

Lessons to keep in mind when installing new windows or maintaining old ones

Cutting Glass

Tom Silva's step-by-step instructions for making clean, safe cuts in a replacement pane

Pro Window Painting Secret

How the pros manage to paint windows without making a mess of the glass

Fast Fix for a Stubborn Sash

Frustrated by a sticky double-hung window? Here's an easy way to fix it.