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Basement from Charlestown House

Basements

From installation to proper care, here's what you need to know about basements.

Keep Basements Mold-Free

Planning to create or redo a below-grade living space? Finished basements are vulnerable to damage from storm-water intrusions, leaking pipes and hot-water tanks, or simply high humidity. Lower the risk of mold or mildew taking hold by remodeling with materials made to shake off damp conditions

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How to Switch Basement Lighting

Ask This Old House master electrician Scott Caron helps a homeowner add switching to basement lights that used to be controlled by a pull string

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How to Repair a Damaged Carrying Beam

Ask This Old House general contractor Tom Silva teaches a homeowner how to repair some structural problems in his home.

From Bare-Bones Basement to Comfortable Family Hangout

Priority one in this reno plan: Transform a strictly utilitarian space into the family's favorite room

Paint a Concrete Floor to Look Like Tile

A savvy DIYer transforms concrete with a trompe l’oeil pattern

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How to Replace Basement Bulkhead Doors

This Old House general contractor Tom Silva helps a homeowner install a new pair of basement bulkhead doors

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How to Install a Basement Bathroom

This Old House plumbing and heating expert Richard Trethewey shows how to rough-in the drainpipes for a basement bathroom

Basement Remodel: Mid-century Modern Guest Suite and Living Area

A finished basement suite entices friends and future grandparents in the best living space redo from the Search for America's Best Remodel 2015

Best Basements Before and Afters 2015

The editors of This Old House pick the best basement remodels from this year's annual Search for America's Best Remodel Contest

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How to Install a Drain Pump for a Basement Sink

Draining water from below-grade plumbing with This Old House plumbing and heating expert Richard Trethewey

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How to Install a Dehumidifier Pump

This Old House plumbing and heating expert Richard Trethewey shows how to replace a faulty pump

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How to Frame Walls for a Basement Room

Partitioning off a below-grade space with This Old House general contractor Tom Silva

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How to Prevent Household Plumbing Leaks

Looking for water damage points with This Old House host Kevin O'Connor and damage prevention specialist Michael Milligan

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How to Install a Battery-Operated Backup Sump Pump

This Old House plumbing and heating expert Richard Trethewey shows how to keep a basement dry—even when the power goes out

3 Steps to Prevent Basement Leaks

A ruined basement upgrade is never a good surprise. Help prevent leaky mishaps with these 3 easy tips.

An Unfinished Basement Gets a Masculine Makeover

An eerie, partially below-grade storage space becomes a fun and functional getaway for a hardworking dad

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How to Insulate a Basement

This Old House general contractor Tom Silva shows how to warm up a chilly concrete wall

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Installing a Basement Sump Pump

This Old House general contractor Tom Silva demonstrates how involved putting in a sump pump can be

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Prepping Basement Walls for Drywall

This Old House general contractor Tom Silva reviews his best practices when building out walls on a concrete foundation

Basement Bonus Rooms

16 smart ways to turn dead space into a comfy place for unwinding, entertaining, and working

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How to Install a Water-Powered Sump Pump

This Old House plumbing and heating expert Richard Trethewey shows how to install an emergency backup sump pump

Water, Water Everywhere

When the basement floods, here's how to beat back the tide

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How to Waterproof a Basement

In this how-to video, This Old House general contractor Tom Silva solves wet basement problems.

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How to Clear a Clogged Drain

In this how-to video, This Old House shows various ways to clear household clogs

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How to Install a Sump Pump

In this how-to video, This Old House general contractor Tom Silva shows an effective way to combat basement flooding

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How to Replace a Basement Window

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

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How to Install a Utility Sink

In this how-to video, This Old House plumbing and heating expert Richard Trethewey installs a utility sink

A Second Chance: From Raw Basement to Family Room

An unfinished basement goes from cold and empty to warm and cozy

Your Basement: Why Add on When You Can Add Under?

Your basement is valuable real estate, and it's an ideal place for the low-cost extra bedroom, family room or workout space you've always wanted

Spring Flood Watch

Learn how to keep your basement dry and your yard puddle-free

Top 10 Repair Questions

Expert answers to the most frequently asked home maintenance questions

A Cellar in the Basement

A little imagination and a lot of work turn a forgotten store room into a cool, dark cellar where wine can age gracefully.