Foundation raising in Walnut Creek CA - a level house on a sound foundation
Sloping floors or a foundation settling unevenly? We work out whether to lift your house or support it where it sits, then get it level.
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Does your house need lifting, or just better support underneath?
Foundation raising in Walnut Creek lifts your house off its foundation so the old one can be replaced, or so the home can sit higher on piers or pilings, the posts that hold it up above a flood zone. At Alliance Walnut Creek Concrete Company we handle both lifting the whole house and supporting a foundation that's settling where it sits, and the first job is working out which one your house needs.
Most calls start with something you've noticed, like doors that stick, a crack climbing a wall or a floor you can feel slope underfoot, and the cause is usually down in the foundation. We work out of Walnut Creek and take jobs in the cities around it, from Concord and Danville out to Oakland and Vallejo. The price moves mostly with the size of the house and how far the job goes, since a lift to replace the foundation or set the house on piers costs more than a lift alone. The schedule turns on the permit, the weather and the inspections, and my written estimate puts your own figure and plan on paper.
How we handle foundation raising
I start by looking hard at your house, because not every house is in shape to take the stress of being lifted, and sometimes supporting the foundation where it sits makes more sense than raising the whole thing. That choice is between a full lift and underpinning, which is adding support under the foundation you already have, and I'll tell you which one I'd pick and why. When a lift is the answer, the house goes up so we can take out the old foundation, then our crew digs out and packs the ground, sets rebar, the steel that holds the concrete together, and pours the new foundation. It cures, which is the wait while the concrete gains strength, before the house comes back down onto it. Nobody sees the ground and the steel once the house is down, and that's exactly where I put the time and the budget first, because they decide how the house sits for the next few decades.
Some jobs reach past the house itself. When a garage floor, patio or walkway is in the way of new footings, we do the concrete cutting ourselves so the opening is clean and the rest of the slab stays whole. A lift can also leave the garage sitting higher than the old drive, and that's where concrete driveway building comes in, so the new driveway meets the house at its new height and sheds water away from it.
Foundation raising rules and address checks in Walnut Creek
The City of Walnut Creek requires a building permit when you add structures or physically change your property, and lifting a house or replacing its foundation is that kind of change, so we plan on one from the start. We figure out early whether your job needs a city or county sign-off or touches the street, and we can handle the application and paperwork for you. Two checks on your address come before any of that. If your lot falls in a Special Flood Hazard Area on the FEMA flood maps, the city says new development or building additions there follow its flood damage prevention code, and you can email the Engineer on Duty at dutyengineer@walnut-creek.org to go over any special requirements. Parts of Walnut Creek also sit inside the state's earthquake hazard zone maps, and you can type your address into the California Geological Survey's EQZapp tool to see whether yours is one of them.
On jobs around here we see a lot of older houses over crawlspaces and plenty of homes on sloped lots, where getting equipment and support into place takes more working out than the lift itself. We meet the same kinds of houses on jobs in Lafayette and Orinda, and we plan each one around the slope and the access before anything goes up.
- Call (925) 448-9528
- Mon–Sun: 8 AM–9 PM
- Walnut Creek, CA 94596
What happens when you call Alliance Walnut Creek Concrete Company in Walnut Creek?
Call and describe what's happening
Call (925) 448-9528 or send the form and tell me what you're seeing, whether that's cracks, sticking doors or floors that slope. I'm usually the one who calls you back to set a time to come see the house.
I inspect and write it up
I look at the foundation, the crawlspace and the walls, ask a lot of questions and tell you whether I'd lift the house or support it where it sits. You get a written estimate that lays out the work and what's driving the cost, so the number makes sense before you agree to anything.
Permits, marking and site prep
We sort out the permit and any marking or scanning before the crew starts on the ground around the house. The city requires a separate after-hours permit for construction on Saturdays and City Holidays, so a weekend lift day needs that permit too.
Lift, pour and walk-through
Our crew preps the ground, the house goes up, and we pour and finish the new foundation, with me on site for the parts that matter most. At the end I walk the job with you and go over how to look after it.
Why Walnut Creek homeowners call Alliance Walnut Creek Concrete Company to raise a house
I come out to see it
I walk the house and the crawlspace myself before anyone talks numbers, and I'm on site for the parts that matter most once the work starts. You deal with the person who made the call on lifting or supporting, not someone reading it off a sheet.
Thirteen years on the hidden parts
I ran a landscape supply yard, learned the trade beside a seasoned finisher and started this business in 2013 because I wanted to know why some work held up and some didn't. That's why I'd rather take extra time working out a tricky foundation than guess and pour.
Licensed and insured, easy to check
We're licensed and insured, and California's Contractors State License Board lists a separate class for contractors who raise, lower, underpin and move structures and their foundations. Ask anyone you're considering which license covers the lift, and check it with the board.
On a lift, what decides how it turns out is the support you can't see once the house comes back down, so it starts with a good look underneath. Ask for your estimate and I'll come out and see it.
Request an estimateGet a written estimate for raising your house
We reply within one business day, and I'm usually the one who calls back to set a time to see the house. The estimate is free, on site and comes with no pressure and no obligation, and I'll walk the foundation, ask what you have in mind and put it all in writing.
- Licensed and insured.
- Phone
- (925) 448-9528
- Location
- Walnut Creek, CA 94596
- Hours
- Mon–Sun: 8 AM–9 PM
Questions about foundation raising in Walnut Creek
How much does it cost to raise a house in Walnut Creek?
Raising a house, just to lift the structure, usually costs about $10,000 to $60,000 per job across the US, according to national cost guides, and that's the market's range, not our price. A new foundation or piers adds to that, so treat the range as a starting point. My written estimate gives you the figure for your house.
How long does it take to raise a house and replace the foundation?
National guides put the whole process at four to eight weeks on average, with the lift itself taking two to seven days once the prep is done. Weather and inspections can stretch that, so leave room in your plans beyond the lift days.
Can we stay in the house while it's being lifted?
No, living in the house or even being inside it during the lift isn't recommended, so plan on somewhere else to stay for the days it's up. I bring that up at the first visit so it isn't a surprise when the schedule firms up.
How do I get my house ready for foundation raising?
Empty out the crawlspace or basement, and you can leave everything inside the house where it is. Before the lift, all the utilities get disconnected, including plumbing, electric, gas, heating, cooling, phone and internet, and we line that up with you during prep.
Will raising my house crack the walls?
Probably some, since one cost guide says a lifted house will likely see some disruption to walls, floors and ceilings, like cracking drywall, and it's common enough that I warn people up front. The state's license class for lifting houses leaves out repairs to the parts of the house that stay in place, so ask early who patches the drywall afterward. Our work is backed by our satisfaction guarantee.
What causes a foundation to crack or heave?
Ground movement is the usual cause, and clay soil is a big one because it can swell as it soaks up water from irrigation or rain, with enough force to lift buildings and crack concrete. One helical pile maker's manual says its piles, steel shafts screwed into the ground, can add support to or replace a foundation damaged by uneven settling, cracking or heaving, so it's worth asking whether piles suit your house.
Other work that comes with a lift
Concrete cutting
If a garage slab, patio or walkway sits over the spot where new support has to go, a clean saw cut opens it without cracking the rest.
Concrete driveway building
Once your house sits at its new height, or the equipment has done its damage, a new driveway can meet the garage at the right level.
Book a foundation look in Walnut Creek
Have your property address handy when you call (925) 448-9528 or send the form, so I can look it up on the flood and earthquake maps before I come out.
Request an estimateCall (925) 448-9528