Encapsulation - Vapor Barriers

At Chan Drainage & Moisture Control, we specialize in advanced moisture control solutions designed to protect your home from the ground up. Our crawl space encapsulation services include professional-grade vapor barrier installation to seal out excess humidity, groundwater, and moisture that can lead to mold growth, wood rot, poor indoor air quality, and structural damage. By installing high-quality vapor barriers and drainage systems, we help homeowners maintain healthier, more energy-efficient living environments.
Crawl space encapsulation is one of the most effective long-term solutions for moisture problems under your home. We use durable, industry-leading materials that resist tears, punctures, and mold buildup—ensuring maximum protection and performance. Whether you're noticing musty odors, sagging floors, or increased humidity levels inside your home, our team can design a customized solution that keeps your crawl space dry and sealed year-round.

We proudly serve Marin County, Sonoma County, San Francisco, and the surrounding North and East Bay Area, including Santa Rosa, Petaluma, Novato, San Rafael, Oakland, Berkeley, Richmond, and nearby communities. If you're searching for vapor barrier installation, crawl space encapsulation, or moisture control experts in the Bay Area, Chan Drainage is your trusted local partner. Contact us today for a free inspection and personalized quote.

At Chan Drainage & Moisture Control, we specialize in professional sump pump installation, replacement, and maintenance to keep your crawl space, basement, or foundation dry and protected year-round. A properly functioning sump pump is essential for removing excess groundwater, preventing flooding, and protecting your home from costly water damage. Whether you're installing a sump pump for the first time or replacing an outdated system, our expert technicians deliver custom solutions built for long-term performance.
We install high-capacity, energy-efficient sump pump systems tailored to the specific layout and drainage needs of your property. Every system includes a reliable pump basin, check valve, and discharge line, with optional backup power systems for added protection during storms or outages. Our team also provides routine sump pump maintenance and repair, ensuring your system is always ready when you need it most.
Chan Drainage proudly serves homeowners throughout Marin County, Sonoma County, San Francisco, and the surrounding North and East Bay Area, including Santa Rosa, Petaluma, Novato, San Rafael, Berkeley, Oakland, Vallejo, and nearby communities. If you’re searching for trusted sump pump installation or crawl space water control in the Bay Area, contact Chan Drainage & Moisture Control today for a free quote and expert service.