
Waterproofing & Drainage Solutions in San Rafael, CA
Water is one of the greatest threats to your home’s safety and longevity. Steer clear of moisture-related problems with the help of our licensed and insured team at Westward Builders. Leaning on our 50+ years of experience, we provide waterproofing and drainage solutions to protect properties across Marin and Sonoma counties year-round. Our highly trained team has experience solving even the toughest water-intrusion challenges and can improve the performance of retaining walls, foundations, driveways, and more.
For waterproofing and drainage services in San Rafael, call (415) 968-1090 or get in touch through our online contact form. Free estimates are available.
How We Can Protect Your Building from Water Damage & Moisture Issues
Properties in our part of Northern California are especially susceptible to water damage, whether from heavy rainfall or clay soils. To address these issues, we offer a full range of drainage and waterproofing services.
We can expertly install the following:
- Track drains
- French drains
- Sump pumps
- Mirradrain drainage panels
- Drainage dissipaters
- Rat slabs and vapor barriers
- Waterproofing membranes (including Paraseal, Preprufe, and Bituthane)
The Benefits of Our Experience-Backed Services
If left untreated, all kinds of moisture-related issues can cause serious and costly damage. Water pressure against a foundation can result in seepage, while soil erosion beneath a home can cause foundation settlement and structural instability. Inside your home, unchecked moisture can damage sheetrock, flooring, and finishes, while also allowing mold and mildew to grow and pose health risks.
We’ve seen firsthand how these issues affect homeowners. In fact, we’ve had a client who couldn’t let their children sleep in a downstairs bedroom, as poor drainage had led to widespread mold growth. After our team corrected the problem, the family finally had a safe, healthy living space again.
When you hire Westward Builders, you can also get solutions that improve the safety and longevity of your home.
The benefits of our services include:
- Long-term protection against water intrusion and structural damage
- Improved indoor air quality by eliminating mold and mildew risks
- Peace of mind knowing your home is safeguarded year-round
- Increased property value by preserving the strength and stability of your investment
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“Christophe M.
Westward Builders just finished a wonderful construction for a new studio on a hillside. A big part of the job was excavating the hillside and building a huge retaining wall. We did not even dream that it could go so smoothly and be so aesthetically p
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“Fully satisfied with a major culvert collapse/repair. A very challenging project that required substantial excavation and driveway demolition. They offered a creative solution to minimize disruption. Reasonable cost and an outcome that exceeded my expectat”Peter J.
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“Excellent service and top-notch work. Westward Builders replaced the siding of my home and updated the drainage. Highly recommend!”Alex R.
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“Westward helped me with a new retaining wall. They were fast and efficient. Transparent about spending. The new wall looks amazing. Thanks to the whole team.”Ryan K.

For Waterproofing & Drainage Solutions in San Rafael, We’re Your Go-To
If you’re concerned about water wreaking havoc on your home, turn to Westward Builders. We can carefully evaluate your property and take essential measures to provide the protection you not only need but deserve.
Call (415) 968-1090 today to request a free estimate and discover how we can protect your home from moisture damage and foundation issues. Bilingual services in English and Spanish are available. Hablamos español.

- Marin County
- San Rafael
- Sonoma County