Basement & Crawl Space Insulation

Basements and crawlspaces are common sources of air leaks and drafts, allowing cold air to enter your home. Proper insulation and air sealing in these areas play a crucial role in keeping your living spaces above warmer and more comfortable. Sealing around the foundation perimeter is especially important, as it helps block the significant amount of outdoor air that can seep inside. Addressing these areas not only improves comfort but also enhances energy efficiency throughout your home.

Fiberglass batts do not air seal and can actually absorb moisture, fall down, and create a home for pests. This material is usually not effective in basements and crawl spaces.

The best solution for basements and crawl spaces is to apply Spray foam insulation around the rim joist and sill plate and/or the basement or crawlspace ceiling to air seal the area.

Closed cell spray foam is one of the most effective insulation options available for enhancing the performance of your building envelope. With just one application, it forms a solid air, moisture, and vapor barrier—while also adding strength to the structure itself. Due to its excellent vapor barrier properties, closed cell foam is typically preferred in below-grade applications. It can also be used in above-grade walls and attic assemblies for optimal building performance.

This premium insulation is especially effective in basements and crawlspaces, where moisture and cold air are most likely to sneak in. Plus, if you’re finishing your basement, we can apply spray foam directly to the walls to turn it into a cozy, energy-efficient living space that feels like the rest of your home.