A sunken concrete slab does not have to be torn out and replaced. We lift settled foundations in Livermore back to level using methods designed for local clay soils - with most jobs done in a single day.
Foundation raising in Livermore pumps material underneath a sunken concrete slab through small drilled holes, filling the void and lifting the concrete back to its original level - most residential jobs are completed in a single day, with the area ready for foot traffic within one to two hours for foam injection or 24 hours for the slurry method.
The reason so many Livermore homes deal with sunken concrete is the clay soil underneath the Tri-Valley. That soil swells with winter rain and shrinks back in the long dry summers, and after enough wet-dry cycles the voids it leaves under a slab cause the concrete to settle and tip. Foundation raising fills those voids and restores the elevation - without the cost and disruption of a full slab replacement. If you have noticed a floor that slopes, a driveway with a low spot, or a patio that pools water after rain, this is likely what you are dealing with.
For slabs that have shifted beyond what raising can correct, or where the soil conditions make a long-lasting lift unlikely, slab foundation building is the right next step - starting fresh with a properly designed slab that accounts for Livermore's ground conditions from the beginning.
If interior doors that used to swing freely now drag on the floor or refuse to latch - especially after Livermore's long dry summers - that is often the first sign that clay soil has pulled away from beneath the slab and the structure above has shifted. This symptom tends to get slightly worse each year if the settling is ongoing. It is easy to dismiss as a swelling-wood issue, but if it keeps coming back and is getting worse, the foundation is worth having assessed.
Walk along the baseboards and look for places where the floor has pulled away from the wall at the base, even slightly. A gap that was not there before - or one that seems to be slowly growing - suggests the slab has dropped in that area. In Livermore's older neighborhoods built on expansive clay, this kind of uneven settling is common and tends to develop gradually over years rather than appearing all at once.
Diagonal cracks running from the corners of door frames or windows are a classic sign of differential settling - where one part of the slab has dropped more than another. Small hairline cracks in drywall are normal in any home, but cracks wider than a pencil tip, or ones that reappear after patching, suggest the underlying slab is still moving. In Livermore homes near the foothills or on deeper clay deposits, this kind of uneven movement is not unusual.
After a winter rainstorm, walk around the perimeter of your home and look for places where water collects against the foundation rather than draining away. Standing water near the base can erode soil underneath over time, which eventually leads to further settling. Given Livermore's pattern of dry summers followed by concentrated winter rains, this wet-dry cycle is one of the more common ways that foundation voids form beneath slabs in the area.
We provide both mudjacking and polyurethane foam injection for residential and light commercial slabs throughout the Livermore area. Mudjacking - which pumps a cement-and-soil slurry under the slab - is the established method for most applications and tends to cost less per square foot. Foam injection is newer, cures in minutes rather than hours, leaves smaller patch holes, and is the better choice for slabs that need to carry traffic quickly or where access is tight. We walk through both options with every customer before any work is scheduled, because the right choice depends on your slab, your soil, and your timeline.
Some customers come to us after a previous attempt to raise their slab did not hold. In those cases, we start by assessing whether the void underneath has been properly addressed, and whether improvements to drainage around the slab perimeter are needed before lifting again. For slabs that cannot be reliably raised, we can also discuss concrete cutting and full section removal as part of a replacement plan - so the decision about how to proceed is based on what is actually the best outcome for your property, not what is easiest to sell.
For homeowners who want the established, lower-cost method and have slabs that do not need to carry traffic within a few hours of the repair.
For homeowners who need a faster cure time, smaller patch holes, or are working with slabs in tight or low-clearance areas.
For driveways where one or more panels have settled below the surrounding surface, creating a tripping hazard or pooling water problem.
For outdoor concrete surfaces that have settled unevenly, creating low spots that hold water or sections that no longer align with adjacent surfaces.
For garage floors that have settled in the center or near the walls, leaving an uneven surface that is difficult to use and shows water pooling.
For settled sections of interior concrete floors in garages converted to living space, workshops, or light commercial buildings.
Livermore sits in the Tri-Valley, where the native soils contain a significant amount of expansive clay. That clay swells when it absorbs winter rain and shrinks back during the long dry summers - and that cycle repeats every year without stopping. Over time, this movement creates voids beneath concrete slabs, and once there is nothing supporting the slab from below, the concrete starts to settle. This is not a sign of poor original construction in most cases. It is simply what happens to concrete in this soil over 20 to 40 years. Homeowners in Livermore whose homes were built during the city's rapid growth years in the 1960s through 1980s are especially likely to encounter this, because those slabs have now been through enough wet-dry cycles that settling is common.
The seismic environment is a second factor that makes foundation work in Livermore more complex than in other California cities. Livermore sits near several active fault systems, and ground movement from earthquakes can accelerate or worsen soil settling beneath a slab. If foundation symptoms appeared after a noticeable tremor, that context is important for a contractor to know before recommending a repair approach. We also regularly work in Pleasanton, where the same Tri-Valley clay conditions and seismic zone create the same pattern of foundation settling that Livermore homeowners recognize.
The American Concrete Institute publishes guidance on slab lifting methods and the soil conditions that affect long-term results - including the specific challenges that expansive clay soils create for concrete placed at grade.
We respond within 1 business day. We will ask what symptoms you are seeing, where on the property the issue is, and roughly how long you have noticed it. This helps us come prepared with the right equipment and a realistic idea of what we are dealing with. There is no cost or obligation to this first conversation.
We visit the property to check the level of the slab with measuring tools, look at the extent of settling, and assess the soil conditions and drainage situation. At the end of the visit, you receive a clear explanation of what we found, which method we recommend, and a written estimate with no items added after you sign.
If the job requires a permit from the City of Livermore's Building Safety Division, we handle that application before work begins. We keep you updated on the permit timeline so you are not left waiting without information. For jobs that do not require a permit, we can often schedule the work within a few days of the estimate.
The crew drills small holes in a pattern designed to lift the slab evenly, pumps material underneath until the concrete rises to the correct level, and then patches the holes before leaving. We check the level throughout the process and walk you through the finished result before closing out. You will be given specific guidance on how long to wait before putting weight on the surface.
We respond within 1 business day - no obligation, no pressure. After you submit, someone from our office will call to set up a free on-site visit at a time that works for you.
(925) 409-3317We have raised slabs at properties throughout Livermore - from older ranch homes in established neighborhoods where decades of clay soil movement have settled entire driveway panels, to newer east-side subdivisions where fill soil beneath patios has compressed faster than expected. Knowing how ground conditions vary across different parts of the city is what allows us to recommend the right method and depth for each specific situation.
Livermore's expansive clay soil and proximity to active fault lines are the two factors that most affect whether a foundation raising repair holds long term. We assess both before recommending a method. A lift that is done without understanding the soil conditions underneath is likely to need repeating within a few years - we aim for repairs that stay level through multiple wet-dry cycles, not just the first season after the work.
For jobs that require a permit through the City of Livermore's Building Safety Division, we handle the application and keep you updated on the timeline. Permitted structural work is on record when you sell your home and is protected if an insurance question ever comes up. We do not suggest skipping the permit step to save time - the protection it provides is worth the few extra days it adds to the schedule.
Our California contractor license is publicly verifiable at cslb.ca.gov, where you can confirm our license status, bonding, and any complaint history in about two minutes. We also carry liability and workers' compensation insurance on every job. Foundation work involves structural elements of your home - documented credentials are not optional for that category of work.
Foundation raising is one of those jobs where the difference between a repair that holds and one that needs repeating comes down almost entirely to understanding the soil and seismic conditions at your specific address - not just how to run the equipment. We are happy to give you a straight answer about whether raising is the right fix for your slab before you commit to anything.
When a sunken slab cannot be lifted and needs to be removed and replaced, concrete cutting is the first step in cleanly extracting the damaged section.
Learn moreFor situations where a slab has settled beyond what raising can correct and a full replacement is the right answer, starting fresh with a properly designed slab.
Learn moreLivermore's rainy season starts in November - get your slab assessed and repaired before the wet months hit so your foundation goes into winter level and protected.
