Crawl Space Repair in Napa, CA
Do you need crawl space repair in Napa, CA? At Bay Area Underpinning we’ve been fixing crawl spaces in Napa since 2005. Contact us today for a free inspection and repair estimate.

As one of the top crawl space repair and foundation repair service providers in Napa CA, we offer the following services, and more:
Crawl Space Foundation Repair
A sagging crawl space can be caused by a variety of reasons, including the following:
- Lack of proper support for the floor
- Incorrect screw jack installation and without corrosion protection
- Soft soil has caused the crawl space support posts to settle
- Poor drainage around the home’s exterior has caused water intrusion into the crawl space
At Bay Area Underpinning, our crawl space repair experts in Napa, CA can use screw jacks to repair a sagging crawl space. The deteriorated screw jacks will be removed and replaced with new ones and then the floor can be lifted.
Early Signs of Crawl Space Problems – Crawl Space Repair Napa CA
Identifying these signs early can help prevent more serious problems:
- Foundation cracks
- Sloping floors
- Wood rot
- Interior floor cracks
- Condensation
- Increased moisture levels
- Increased humidity levels
- Condensation
- Mold and mildew formation
- Spongy floors
- Rodent infestation
- Increased energy bills



Bay Area Underpinning Napa, CA – Other Services Offered
Foundation Movement Repair
For homes located on a hillside, one of the most common issues faced is foundation movement. This is usually indicated by signs like sloping floors, problems opening doors and windows, drywall cracks, etc.
Drilled concrete piers are an excellent solution to repair foundation movement and settling foundations. They are also suitable for building a deep foundation system for new construction projects.
Uneven Concrete Repair
Uneven concrete surfaces around your home can create trip hazards that can cause serious injuries to both residents and visitors. If someone gets hurt, you could find yourself facing an expensive lawsuit.
Polyurethane foam injection is perfect for lifting sunken or uneven concrete. Dime-sized holes are drilled into the affected concrete and then the foam is injected underneath the slab. The foam rapidly expands to fill the void, thereby raising the slab. This is a minimally-invasive procedure and your concrete surface will be ready to use within minutes.
Bay Area Underpinning – Service Area
In addition to serving property owners in Napa, CA, and the surrounding area, Bay Area Underpinning also serves many other areas in Northern California. To view the full list of the areas we serve, visit our Service Area page.

Proudly Serving Northern California
Northern California trusts Bay Area Underpinning for reliable crawl space, foundation, and concrete repair services. Contact us for a free inspection!
Top Cities We Serve
Why Choose Bay Area Underpinning?
Since 2005, Bay Area Underpinning has been offering crawl space repair and foundation repair services all over Northern California. We use industry-leading techniques to provide the right repair solutions for property owners. Call us now to schedule a free inspection!