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Insulation in an attic
Insulating window with sash weights
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How to Insulate a Window with Sash Weights

In this video, This Old House general contractor Tom Silva explains how to insulate a window with sash weights.

Benefits of Stone Wool Insulation

Learn how the natural power of stone can increase the comfort of your home.

Installing cellulose insulation in home attic
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How to Refresh Cellulose Insulation in the Attic

In this video, This Old House general contractor Tom Silva explains how to refresh cellulose insulation in the attic.

Choosing insulation for home
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How to Choose and Use Insulation

This Old House general contractor Tom Silva explains how to choose insulation.

Insulation Tips for Every Corner of Your Home

Keep your home cozy and save money with this round-up of our top insulation tips for your home.

3 Common Insulation Materials Used in Old Homes

If you live in an older home, understanding what pads your walls is essential to keeping your family safe. Here are three common types of insulation found in old homes and their potential hazards.

Maximizing impact of insulation
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How to Maximize the Impact of Insulation

Ask This Old House general contractor Tom Silva shares some tips for insulating an attic.

3 Types of Door Sweeps

Here are three types of door sweeps (or door bottoms) to consider to help stop the drafts.

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Tips for Using Stone Wool Insulation

It’s efficient, easy to install, and incredibly effective; hear what Tom Silva has to say about this versatile insulation product.

Insulating window weight pockets
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How to Insulate Window Weight Pockets

In this how-to video, This Old House general contractor Tom Silva shows an energy-efficient way to insulate old windows

How Much Could You Save by Insulating Your Home?

Save money and increase your home's market value by upgrading your insulation.

Reading insulation r-value
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What is Insulation R-Value?

Ask This Old House general contractor Tom Silva explains R-value and the need for good insulation.

Installing fiberglass insulation
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How to Install Fiberglass Insulation

This Old House host Kevin O'Connor shows how to fill gaps and make a space cozier and energy efficient.

Insulating attic with fiberglass
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How to Insulate an Attic with Fiberglass

This Old House general contractor Tom Silva shows affordable ways to create an energy-efficient attic.

How to Insulate a Crawl Space

To reap the temperature-regulating benefits of a crawl space, it must be adequately insulated. Read on to learn why you should insulate your crawl space and how to do so.

Choosing and using foam insulation at home
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How to Choose and Use Foam Insulation

This Old House general contractor Tom Silva explains the wide world of spray-foam insulation.

Choosing the right insulation
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Things to Know About Choosing Insulation

Ask This Old House general contractor Tom Silva discusses the options for insulation with host Kevin O’Connor

Types of Insulation for Your Home

Proper insulation is the best way to maximize comfort and minimize energy bills. Here are some common types for your home.

What to Know About Using Soybean Insulation

A Chicago couple uses spray-foam insulation made from soybeans to keep their kitchen cool in the summer and warm in the winter.

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How to Insulate HVAC Ductwork

This Old House plumbing and heating expert Richard Trethewey helps a homeowner insulate his HVAC ductwork.

S20 E19, Ross Trethewey and Nathan Gilbert discuss sealing windows with Kevin O’Connor
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The Most Practical Air Sealing Techniques

Home technology expert Ross Trethewey and carpenter Nathan Gilbert share some cost-effective ways to seal and insulate existing windows without replacing them.

ASK S7 E7, sealing windows and doors for winter
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How to Seal Windows and Doors for Winter

Tom Silva shows you how to keep cold air from coming through windows and doors.

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How to Retrofit Cellulose Insulation

In this video, This Old House general contractor Tom Silva explains how to install cellulose insulation

Easy Fixes for Drafty Windows and Doors

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

How to Insulate an Old House

We share different types of insulation so you can select what works best for your home’s interior walls.

Ice Dam Prevention

Here’s how to prevent ice dams in 8 steps so you can enjoy a winter free of icicles and the damage they can do to your roof.

How to Cut Batts of Fiberglass Insulation

3 easy steps and neat trick to safely make tidy cuts in fiberglass insulation batts.

How to Install Insulation

Learn how to beef up your wall's weather protection in 4 easy steps.

Adding Attic Insulation

Can you blow insulation over existing insulation? How much is enough? We answer these questions and more.

Read This Before You Insulate Your Attic

Yes, it's a messy job. But when the dust (and fiberglass) settles, you'll enjoy a fatter bank account and more comfortable indoor temps year-round.

The Best Way to Insulate an Existing Concrete-Block Wall

Tom Silva gives some advice on insulating a brick Colonial with concrete-block walls

How to Insulate Around Recessed LED Fixtures

Scott Caron offers advice on how to keep your home energy-efficient when using recessed lights