Insulation How To & DIY
Improve the value of your home by discovering our insulation step-by-step tips & ideas.
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How to Insulate an Attic Door
Yes, your attic is insulated, but the access hatch probably isn’t. Here are a few ways to insulate the attic door, save energy, and save money.
How to Beef Up Attic Insulation
Cost-effective way to save energy with This Old House general contractor Tom Silva
How to Choose the Right Insulation
Ask This Old House general contractor Tom Silva discusses the options for insulation with host Kevin O’Connor
Tips with Tommy: Stone Wool Insulation
It’s efficient, easy to install, and incredibly effective; hear what Tom Silva has to say about this versatile insulation product
How to Install Fiberglass Insulation
This Old House host Kevin O'Connor shows how to fill gaps and make a space more cozy and energy efficient
How to Insulate HVAC Ductwork
This Old House plumbing and heating expert Richard Trethewey helps a homeowner insulate his HVAC ductwork.
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
How to Retrofit Cellulose Insulation
In this video, This Old House general contractor Tom Silva explains how to install cellulose insulation
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.
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.
How to Seal Windows and Doors for Winter
Tom Silva shows you how to keep cold air from coming through windows and doors.
How to Weatherstrip a Door
Close the gap in your door to stay free from drafts, eliminate air leaks, and maintain energy efficiency.
How to Insulate Your Basement
From preparation to installation, here's a breakdown on basement insulation.
How to Maximize the Impact of Insulation
Ask This Old House general contractor Tom Silva shares some DIY Smarts tips for insulating an attic.
Mind the Window Gaps
If you can feel a breeze around your closed windows, consider these quick-and-easy ways to block drafts. Such stopgap measures eliminate air leaks by sealing sash perimeters from indoors. Come spring, add or replace weatherstripping for a longer-lasting fix
Editors' Video Picks: Insulation Tips for Every Corner of Your Home
Airtight solutions for your house's drafty problems
How to Choose and Use Foam Insulation
This Old House general contractor Tom Silva explains the wide world of spray-foam insulation
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 Know What Insulation is Behind Your Walls
If you live in an older home, understanding what pads your walls is essential to keeping your family safe
How to Insulate a Basement
This Old House general contractor Tom Silva shows how to warm up a chilly concrete wall
How to Choose and Use Insulation
This Old House general contractor Tom Silva explains the wide world of insulation
5 Steps to Finishing an Attic
This Old House's Two-Minute Expert explains what goes into creating a bonus room under the rafters
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 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
How to Insulate a Window with Sash Weights
In this how-to video, keep out the cold with This Old House general contractor Tom Silva
From the Ground Up: Roofing and Siding
This Old House general contractor Tom Silva shows how he installs roofing and siding to keep a house buttoned up and dry.