Air Sealing in Norwalk

William & Sons Pico Rivera Insulation provides expert air sealing services in Pico Rivera, CA, closing the gaps and cracks that let conditioned air escape and drive up your energy bills regardless of how much insulation you have.

Our air sealing technicians work systematically through attic top plates, rim joists, recessed light fixtures, plumbing chases, and attic hatch frames—anywhere conditioned air can escape or outdoor air can enter. We use expanding foam, fire-rated caulk, and rigid blocking materials appropriate to each penetration type. This service lays the foundation for our blown-in insulation and attic insulation installation projects.

Homeowners across Pico Rivera are often surprised by how many hidden air leaks exist in even recently built homes. Our team documents every location sealed so you have a clear record of the improvements made. For a complete building envelope upgrade, explore our spray foam insulation service, which combines air sealing and insulation in a single step for wall and rim joist applications.