A well insulated home uses less energy. That means lower heating and cooling costs and less environmental impact.

Whether it is cold air leaking in during the winter or warm air during the summer, a drafty house loses energy and is less comfortable. Insulating your home is one of the easiest and most cost-effective ways to save energy and lower your energy bill.

You can draft-proof your home by sealing the gaps and cracks with caulking and weatherstripping.

Read our how-to booklets:

Sealing, caulking & weatherstripping (PDF, 847 KB).

Basement & crawlspace insulation (PDF, 841 KB).

Attic insulation (PDF, 671 KB).

Wall insulation (PDF, 625 KB).

Watch these how-to videos:

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Caulk and Seal Windows

Caulk and seal your windows to save energy and money. Learn which tools you'll need and how to get started.

Play video: Caulk and Seal Windows. (7:03)

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Insulate Basement Walls

Learn how to install a wood frame, set up a moisture barrier, and finish with drywall.

Play video: Insulate Basement Walls. (7:12)

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Install Door Weather Stripping

Learn how to weather strip your door properly to protect it against the elements and save money on your energy bill.

Play video: Install Door Weather Stripping. (4:10)

Certain renovations can change the way air leaks into and out of your home, and may have an impact on your home's humidity levels. Read more about managing humidity.

Read more about insulation