
Your deck, addition, or ADU starts underground. We pour footings sized for Petaluma's clay soils, seismic zone, and city inspection requirements.

Concrete footings in Petaluma are the underground bases that support decks, room additions, ADUs, fences, and other structures. Most residential footing jobs, including digging, forming, and pouring, can be completed in a single day, with at least a week before the structure above can be loaded and 28 days to reach full strength.
If a post in your yard is leaning, a deck is shifting, or you are planning new construction, the footing is where everything starts. Getting this right matters more in Petaluma than in many other areas because the city's clay soils and seismic zone create conditions that can work a poorly designed footing out of position over time. Many homeowners building on a slope also need concrete retaining walls to go alongside new footings when the site has elevation changes.
The City of Petaluma requires permits and a pre-pour inspection for most structural footings. We handle the paperwork, show up for the inspection, and give you the permit record to keep with your home documents.
If a deck post or fence post that used to stand straight is now visibly tilted, or if you can see a gap opening between a deck ledger and your house, the footing below it has likely shifted or deteriorated. This is especially common in Petaluma's clay soils, where the seasonal wet-dry cycle gradually works footings out of position. A leaning post puts stress on everything connected to it.
Cracks that run diagonally from corners, or that are wider at one end than the other, often signal that the footing below has settled unevenly. In Petaluma, this pattern shows up most often after a particularly wet winter followed by a dry summer. Hairline cracks can be cosmetic, but cracks wide enough to fit a coin into deserve a professional evaluation.
When a footing settles, the structure above it shifts slightly, and that shift shows up first in door and window frames that are no longer perfectly square. If a door that used to close easily now sticks at the top or drags at the bottom, and there has been no obvious plumbing leak or wood rot, the footing below that part of the structure may be moving.
Any new structure attached to or built near your home needs proper footings before anything else goes up. In Petaluma, accessory dwelling units have become increasingly common, and the city requires permitted footings for all of them. Getting the footings right at the start costs far less than correcting a structural problem after the framing is already up.
We pour concrete footings for decks, room additions, accessory dwelling units, fence lines, and standalone structures throughout Petaluma. Every footing is dug to the depth required by your site conditions and the approved building permit, with steel reinforcement placed inside the form before the concrete is poured. We never skip the rebar. Petaluma's seismic zone means the steel is what keeps your structure intact if the ground moves.
For new deck and porch projects, we typically pour pier footings using cylindrical tube forms that produce a clean, level base for posts. For room additions and ADUs, we pour continuous perimeter footings to the dimensions specified on the approved plans. Homeowners building larger projects that also require a structural base can benefit from pairing footings with our foundation installation service when a full perimeter or slab is needed.
We pull the City of Petaluma building permit, schedule the pre-pour inspection, and deliver the permit closeout documentation to you when the work is done. All of that is part of the job, not an add-on.
Best for homeowners adding a new deck or repairing an existing one with footings that have shifted or degraded.
Suited for additions where a continuous perimeter footing is required per approved architectural plans.
For accessory dwelling units, detached garages, and larger outbuildings that require permitted structural footings.
Ideal for fence lines that need properly set posts, especially on Petaluma properties with clay soils prone to seasonal movement.
Petaluma's clay-heavy soils are the defining challenge for any structural footing work here. The soil swells when it absorbs water during the rainy season and shrinks back in the dry months. A footing that was not sized and placed with that movement in mind will gradually shift out of position, and whatever sits on top of it will start to lean, crack, or bind. Contractors who have not worked in Petaluma's specific soil conditions tend to undersize footings, and homeowners end up with structural problems within a few years.
Petaluma is also in a seismically active part of Northern California. Building code here requires footings to handle lateral forces from ground movement, not just the vertical weight of the structure above. That means more steel reinforcement inside the concrete and sometimes wider or deeper footings than you would need in a less active region. The City of Petaluma's pre-pour inspection confirms this was done correctly before anything is buried. Homeowners in Rohnert Park and Cotati face the same clay and seismic conditions and trust us with the same work.
Older Petaluma neighborhoods, particularly on the west side, have a significant number of homes built before modern building codes. If you are repairing or replacing footings on an older structure, there is a real chance the existing work does not meet current standards, which can mean more scope than a simple replacement job. We flag this during the estimate rather than mid-project. Homeowners in Novato and across the North Bay count on us for the same honest assessment.
We visit your property to see the dig site in person. Soil conditions, access, and the structure size all affect the scope and price. You receive a written estimate within one business day that covers permit fees, labor, materials, and cleanup.
We submit the building permit to the City of Petaluma Building Division and give you a realistic estimate of the wait time, typically a few days to a few weeks. We will not ask you to skip the permit to move faster.
We dig to the required depth, set the forms, and place the steel reinforcement. The city inspector visits before any concrete is poured to verify depth and steel placement. Nothing gets buried until it has been checked independently.
Concrete is poured and consolidated so there are no air pockets. Plan to wait at least a week before framing begins, and 28 days for full strength. We schedule any final inspection and deliver the permit closeout documentation to you.
We respond within one business day. Free written estimate. City of Petaluma permit handling included.
(707) 600-3389We work across 12 cities in Sonoma and Marin counties, including every Petaluma neighborhood from the older Victorian west side to the newer east-side subdivisions. That means we have poured footings into every type of local soil and know exactly what each site needs.
We handle the City of Petaluma permit application from the first submittal through the final sign-off. The permit record stays with your property, which matters when you refinance or sell. See how the process works at the{' '}City of Petaluma Building Division.
Every footing we pour includes the correct steel reinforcement for your structure type and Petaluma's seismic zone. We do not offer a 'cheaper version' without steel. The American Concrete Institute covers the engineering rationale at{' '}concrete.org.
Older Petaluma properties sometimes reveal unexpected soil conditions or existing unpermitted work during excavation. If that happens, we stop and tell you before we proceed. You decide how to handle it. We do not add cost without your knowledge and approval.
Every structure in your yard starts with what is underground. We take that seriously, pull the permit, pass the inspection, and hand you the documentation. That is the standard, not a premium service.
When your project needs a full perimeter or continuous foundation rather than individual piers, foundation installation is the next step up.
Learn moreSlope-side projects often need both footings and a retaining wall to create level, stable outdoor space alongside the new structure.
Learn morePetaluma's clay soils and seismic zone leave no room for undersized footings. Call us now or send us your details and we will respond within one business day with a free written estimate.