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The guys from Ask This Old House check out a red plastic cylinder that opens and closes, but What Is It?

Discover how insulation and R-value can work together to make your home more comfortable and energy-efficient. Read our guide to learn more.

Overflows make your bathtub safer and follow the latest codes. Learn more about how to install an overflow on an older tub for peace-of-mind.

Watch as Scott Caron, master electrician for Ask This Old House, installs an antique light fixture in a historic St. Paul, MN, home.

A new project begins: a traditional farmhouse in Massachusetts, built in a factory 200 miles away.

Kevin fixes a gas fireplace, Scott adds an exhaust fan, Tom demonstrates roof shingles.

In this guide, Tom Silva discusses how to install roof shingles and the best approach to take for a seamless outcome.

This Old House works with chimney and fireplace expert Clint Sanner to repair a chimney and convert a wood-burning fireplace with a gas log.

Scott Caron, master electrician for Ask This Old House, helps a homeowner put in an exhaust fan to rid her kitchen of smelly cooking odors.

Ask This Old House plumbing and heating expert Richard Trethewey shows the guys a square, gray device with a top handle and a power cord. What is it?

Ask This Old House landscape contractor Roger Cook shows the guys nothing more than a flexible red plastic cylinder. What is it?

Ask This Old House landscape contractor Roger Cook has an item with small wheels, an orange yoke, and a long blue handle. What is it?

Ask This Old House host Kevin O'Connor stumps the crew with a long, narrow strip of soft black fabric. What is it?

In this guide, This Old House landscape contractor Roger Cook demonstrates how to properly hand-prune trees using the three-cut method.

Ask This Old House general contractor Tom Silva helps a homeowner install an emergency escape ladder

Want to add a showerhead to your freestanding tub? Follow this step-by-step guide for everything you need to know to take on this project.

Take a crash course in DIY home electrical work with our easy to follow step-by-step guide on how to repair a three-way light switch.

Ask This Old House plumbing and heating expert Richard Trethewey explains the many filter options and home water systems available for filtering drinking water

Too much humidity in your home can cause discomfort. Learn how to install a whole-house dehumidifier in our comprehensive guide.