Insulation How To & DIY
Improve the value of your home by discovering our insulation step-by-step tips & ideas.
How to Conduct a Home Energy Assessment
Home technology expert Ross Trethewey shows a homeowner where her energy consumption is going and how to save some money moving forward.
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 Insulate Around Recessed LED Fixtures
Scott Caron offers advice on how to keep your home energy-efficient when using recessed lights
How Do I Insulate a Basement Ceiling?
Does it make sense to insulate my basement ceiling? This Old House’s Tom Silva answers.
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 how to insulate your basement.
How to Maximize the Impact of Insulation
Ask This Old House general contractor Tom Silva shares some tips for insulating an attic.
Things to Know About Choosing Insulation
Ask This Old House general contractor Tom Silva discusses the options for insulation with host Kevin O’Connor
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.
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
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 Insulate HVAC Ductwork
This Old House plumbing and heating expert Richard Trethewey helps a homeowner insulate his HVAC ductwork.
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.
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.
How to Choose and Use Foam Insulation
This Old House general contractor Tom Silva explains the wide world of spray-foam insulation.
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 Insulate an Attic with Fiberglass
This Old House general contractor Tom Silva shows affordable ways to create an energy-efficient attic.
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.
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.
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 how to choose 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 video, This Old House general contractor Tom Silva explains how to insulate a window with sash weights.
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.
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.
How to Cut Batts of Fiberglass Insulation
3 easy steps and neat trick to safely make tidy cuts in fiberglass insulation batts.
Adding Attic Insulation
Can you blow insulation over existing insulation? How much is enough? We answer these questions and more.
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.