Insulation
Read This Before You Finish Your Attic
Transform your unused attic into valuable living space. Our guide will help you plan a successful attic renovation from start to finish.
Adding Attic Insulation
Insulating your attic can save money on energy bills and keep your home warmer. We cover how to add insulation to your attic, how much it costs, and more.
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.
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.
Fixing Ice Dams on a Roof
Home technology expert Ross Trethewey helps a homeowner solve an ice dam issue with smart insulation practices that also improve the home’s efficiency.
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.
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.
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
How To Insulate a Basement Ceiling
Does it make sense to insulate your basement ceiling? Our guide includes tips and instructions on how to insulate a basement ceiling.
All About Insulation
Insulation in your home increases interior comfort, while decreasing heating and cooling costs.
Easy Fixes for Drafty Windows and Doors
Read these 8 things you can do yourself to keep warm inside your home.
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 Much Could You Save by Insulating Your Home?
Save money and increase your home's market value by upgrading your insulation.
3 Types of Door Sweeps
Here are three types of door sweeps (or door bottoms) to consider to help stop the drafts.
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
Benefits of Stone Wool Insulation
Learn how the natural power of stone can increase the comfort of your home.
Best Smart Home Products
The pros at Reviewed.com share their top product picks, including "smart" bulbs, locks, smoke detectors, and more
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.
Ask This Old House Know-How: All About Stone Wool Insulation
TOH affiliate Nick Schiffer discusses the benefits of mineral wool insulation
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
What is Insulation R-Value?
Ask This Old House general contractor Tom Silva explains R-value and the need for good insulation.
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.