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Serving Napa, CA and surrounding areas. (707) 254-6177
If your doors stick, floors slope, or cracks keep growing, your foundation may be settling. We lift it back into place and stop further movement.
Foundation raising in Napa, CA lifts a home that has settled unevenly back to a stable, level position using steel pier systems or grout injection beneath the slab - most residential projects take one to three days of active work on your property once permits are in hand.
In Napa, settling foundations are a real problem. The region sits on heavy clay soils that swell in wet winters and shrink in dry summers, and that cycle slowly pushes and pulls on every foundation in the valley. The 2014 South Napa earthquake added to the damage load for thousands of homes - some of which are still showing the effects years later.
If you have noticed sticking doors, diagonal wall cracks, or floors that slope to one side, those are signs the ground beneath your home has moved. Foundation raising addresses the cause, not just the symptom. Many homeowners also find it helpful to look at concrete cutting for related work around the foundation perimeter once the lift is complete.
If doors that used to swing freely now drag on the floor or refuse to latch, or windows have become hard to open, your frame has likely shifted. This happens when one part of the foundation drops while another stays put. In Napa, this symptom often gets worse after the rainy season, when clay soils have swollen and then dried out again.
Small hairline cracks in drywall are usually harmless, but diagonal cracks running from the corners of door frames or windows - or stair-step cracks in brick or stucco - are a more serious sign that the foundation beneath that area has moved. Napa homeowners in older neighborhoods sometimes notice these cracks appearing or widening after a dry summer, as clay soil contracts and pulls support away.
If you can feel a dip or slope when you walk through a room, or if a marble rolls consistently toward one wall, the foundation under that section may have settled lower than the rest. This is one of the clearest signs that lifting and re-leveling is needed, and one of the easier things to check yourself before calling a contractor.
The 2014 South Napa earthquake caused foundation damage that was not always immediately obvious - some homes showed delayed cracking and settling in the years that followed. If your home sits near the West Napa Fault Zone and has not had a foundation inspection since then, it is worth having one done even if symptoms seem minor. Catching slow movement early is far less disruptive than waiting for it to become visible.
We handle foundation raising using steel pier systems that are driven deep into stable soil or bedrock, then used to hydraulically lift the structure back toward its original position. This approach is well-suited to Napa properties where the depth to stable ground varies due to the clay-heavy valley soils and the seismic history of the region. Every project starts with an on-site assessment to determine how much the structure has moved and where - not a guess from the street. For properties needing related surface work after the lift, we also provide concrete cutting to create clean access points or address cracked perimeter concrete.
For situations where a slab section has sunk rather than a full perimeter foundation, grout injection beneath the slab can fill voids and raise sunken sections without the excavation involved in pier work. Both methods require a City of Napa building permit, and for this seismic zone, a structural engineer review is often part of the permit process. We handle all of that on your behalf. If your project also involves broader structural work, we connect it to our slab foundation building services so the work is planned and sequenced correctly.
Best for homes with significant, uneven settling across multiple areas of the foundation.
Best for isolated slab sections that have sunk due to voids or soft spots beneath the concrete.
Best for older Napa homes with shallow foundations that are settling along one or more exterior walls.
Best for pre-1980 Napa homes that were raised back to level and now need anchor bolts added for earthquake safety.
Napa sits on Yolo and Pleasanton series soils - heavy clays that swell in wet winters and contract in dry summers. This seasonal movement is gradual but relentless, and it is one of the most common causes of foundation settling in the valley. Homes built before the 1980s were often set on foundations that did not account for this soil behavior, which is why older neighborhoods near downtown and the Westside see more settling issues than newer subdivisions. Add the legacy of the 2014 South Napa earthquake - a magnitude 6.0 event that shook loose foundations across the city - and many homes here have accumulated damage that has not fully been addressed.
We work across the entire Napa service area, including properties in Vallejo where older housing stock faces similar soil and seismic conditions, and in Fairfield where hillside and valley-floor properties each present different settling patterns. Whether your home is a Victorian near the historic downtown, a mid-century ranch on the east side, or a newer build on a sloped lot, the approach to foundation raising needs to match your specific conditions - not a one-size template.
Tell us what you have noticed - sticking doors, sloping floors, visible cracks. We reply within 1 business day and schedule your free on-site assessment. You do not need to know the technical details.
We visit your property, inspect the foundation, check the crawl space if there is one, and take measurements to determine how much and where the structure has moved. You receive a written estimate explaining the findings and the cost - no pressure to sign on the spot.
Because Napa is in a high seismic hazard zone, your project will almost certainly require a City of Napa building permit and may require a structural engineer review. We handle the permit application and coordination - allow one to three weeks for approval.
Active lifting typically takes one to two days. We install support systems, hydraulically raise the structure in stages, and take measurements throughout to confirm the lift. After the city inspection, we backfill excavated areas and walk you through what was done and what cosmetic repairs may follow.
We will visit your property, measure what has moved, and give you a written estimate - no pressure, no obligation.
(707) 254-6177California requires a valid Contractors State License Board license for any foundation work. You can verify our license at cslb.ca.gov in minutes. A valid license means you have legal recourse and that our work is covered by the required bonding and insurance.
Napa sits in a mapped high seismic hazard zone, and foundation work here almost always requires a permit and may require a licensed structural engineer. We handle every step of that process - application, engineering coordination, and the final inspection - so you never have to navigate the City of Napa Building Division on your own.
We have completed foundation raising projects across all 12 cities in our service area - from hillside properties in Napa to valley-floor homes in Vallejo and Fairfield. That range of local experience means we have seen the full variety of soil conditions, foundation types, and permit requirements that come with working in this part of California.
We take documented measurements before we start and again after the lift is complete. You receive written confirmation of exactly how much the foundation moved and how far it was raised - documentation that matters if you ever sell your Napa home and a buyer's inspector asks questions about prior foundation work.
Every one of these proof points connects back to the same outcome: you know what was done, why it was done, and that it was done right. That matters more for foundation work than almost any other home project, because once the concrete is poured and the piers are backfilled, the quality of the work is invisible - until something goes wrong.
Precise slab and wall cutting for drain installation, panel removal, and utility access around your foundation perimeter.
Learn moreNew concrete slab foundations poured to California seismic standards for ADUs, additions, and full new builds.
Learn moreSpring is the busiest season for foundation work in Napa - book your free on-site assessment now so you are not waiting while your home keeps settling.