COVID-19 Update:

To protect the health of our staff and our customers, Efficiency Vermont offices are closed to the public. In the meantime, our customer support team is available to help you remotely. Contact us at (888) 921-5990 or

We have cautiously begun scheduling project related site visits when required. You can find more information on our safety protocols here.

How to air seal and insulate your basement (video)

1 min read
Insulation & Air Sealing

Most homes in Vermont can be made more comfortable by properly air-sealing and adding insulation. This How To focuses on one of the most important areas of the home for weatherization: the basement.

How to insulate your basement

Watch this video for professional tips on air-sealing and insulating your basement. Locate common problem areas and learn how to seal them. Explore the types of insulation that work best in a basement. Then download our printable flier.

Materials checklist
  • Silicone, acrylic latex caulk and/or low-expansion foam for air sealing
  • High-temperature (heat-resistant) caulk for sealing around flues and chimneys
  • Appropriate board insulation products depending on project
Rebates and resources

We offer technical guidance and rebates to help cover the cost of DIY insulation projects or professional weatherization services.