Crawl space encapsulation is the process of sealing your crawl space with a durable moisture and vapor barrier that covers the floor, walls, and foundation footings. Before installing the barrier, our team addresses any existing water intrusion to ensure a dry, stable environment. Depending on the conditions of your San Francisco home, we may also recommend adding a crawl space dehumidifier to keep humidity and moisture levels consistently under control.
Moisture issues in the crawl space can lead to costly damage. When left untreated, excess moisture can weaken structural components, contribute to wood rot, and even lead to complete foundation failure. Damp, humid environments also allow mold and mildew to thrive—putting your home’s indoor air quality and your family’s health at risk.
Protect your Bay Area home with professional crawl space encapsulation from Foundation Strategies and Construction. Call today to schedule an appointment!
Our trained and experienced team handles moisture control from start to finish, ensuring your home stays safe, dry, and protected.

A properly encapsulated crawl space improves indoor air quality, increases home comfort, and boosts energy efficiency. Studies show that sealing and insulating the crawl space can reduce energy bills, help prevent future structural issues, deter pests, and even make your home eligible for certain tax credits. It’s not only a smart home upgrade—it’s a smart investment.
For more information on energy savings and moisture control, explore the guidance from Energy Star and the U.S. Department of Energy.
Feeling unsure about what encapsulation involves? Don’t worry—our team keeps the process straightforward, efficient, and stress-free.
1. Clean & Prep the Crawl Space: We start by clearing debris and preparing the area for repair and sealing.
2. Fix Existing Issues: Any drainage, moisture, structural, or insulation problems are identified and resolved first.
3. Install the Vapor Barrier: We place a thick, high-quality polyethylene vapor barrier across the floors, walls, and piers to block moisture and deter pests.
4. Seal Vents & Openings: Ventilation points and gaps are sealed to prevent humid air from entering.
5. Add Insulation (As Needed): Insulation is installed based on your home’s moisture zone and energy needs.
Once everything is installed and cleaned up, you’ll enjoy a healthier, more efficient home with a fully encapsulated crawl space.
Foundation Strategies provides reliable, cost-effective crawl space encapsulation throughout San Francisco and the surrounding areas, including Palo Alto, Gilroy, Santa Clara, and the entire Bay Area.
Contact us today to schedule an inspection and receive a free, no-obligation quote for your crawl space encapsulation project.