Closed Cell Insulation

Proper insulation is the key to maintaining a comfortable home or facility, so it’s important to choose a contractor that you can trust to install your new insulation. CRG Insulation provides top-of-the-line closed cell insulation installation services in all of the SF Bay area and the surrounding areas. You can confidently hire us to tackle your insulation installation project from start to finish, whether you’re adding insulation to a brand-new space or replacing your outdated insulation.

Closed-cell spray foam is an excellent choice in locations where moisture control, structural strength, and air tightness are top priorities. Consider it where you have:

Crawl spaces or basements prone to dampness or occasional flooding
Spaces with complex framing or many penetrations (pipes, ducts, wiring) where traditional insulation leaves gaps
Exterior walls or roof decks where wind, rain, or climate cycles are intense
Areas where pest resistance is desired — closed cell foam helps block small rodent or insect entry pathways.

In addition, closed cell insulation adds structural rigidity to walls and roofs, which can improve resistance to environmental stresses like high winds or seismic activity. It also acts as a vapor barrier, so you’re less likely to need separate layers for moisture control.

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Why should you choose closed cell insulation?

Closed cell insulation is spray foam insulation that creates an air-tight barrier against moisture and the elements.

Where Closed-Cell Really Makes a Difference