Insulation Videos

These This Old House videos showcase all of our insulation projects, how-tos, and designs.

S22 E25: Ross Trethewey tests indoor air quality
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What To Know About Indoor Air Quality Testing

Home technology expert Ross Trethewey tells us about indoor air quality, why it’s important, and the tools and data we can use to ensure that we’re breathing healthy, clean air.
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How To Maximize the Impact of Insulation

Discover the best techniques for boosting insulation and improving home comfort.
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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
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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.
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How to Seal Leaky Ductwork

Ask This Old House plumbing and heating expert Richard Trethewey shows an innovative new way to seal ducts from the inside
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Understanding Insulation and R-Value

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

Watch as This Old House plumbing and heating expert Richard Trethewey helps a homeowner insulate his exposed HVAC ductwork.
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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.
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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.
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How To Seal Windows and Doors for Winter

Keep your family warm this winter. Tom Silva shows you how to stop cold air from coming through windows and doors.
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How To Effectively Insulate an Attic with Fiberglass

You can improve your attic's thermal performance by insulating it with fiberglass. Read about how to make your home more energy efficient in our step-by-step guide.
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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 more energy-efficient.
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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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How to Choose and Use Insulation for Your Next Project

This Old House general contractor Tom Silva explains how to choose and use various types of insulation in this video and guide.
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5 Steps to Finishing an Attic

This Old House's Two-Minute Expert explains what goes into creating a bonus room under the rafters
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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
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How to Insulate an Attic

In this how-to video, This Old House general contractor Tom Silva and host Kevin O'Connor demonstrate the proper way to insulate an attic
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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.
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How To Retrofit Cellulose Insulation

Learn how to retrofit cellulose insulation for your home in this step-by-step guide from This Old House general contractor Tom Silva.