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Porterville clay soils shift every season - and sunken concrete is the result. We raise settled slabs back to level using mudjacking and foam injection, without the cost and disruption of full replacement.
Foundation raising in Porterville, CA lifts a sunken concrete slab back to its original level by pumping material into the void beneath it through small drilled holes - most residential jobs are completed in a single day, with the surface ready to walk on the same afternoon.
Most homeowners in Porterville reach out when they notice an uneven edge in their driveway, a gap forming between concrete sections, or doors that suddenly stick after the first heavy rains. The underlying cause is almost always the same: the clay-heavy soil common throughout Tulare County expands when it gets wet and shrinks when it dries, and over years that movement creates voids under the slab. Foundation raising fills those voids and lifts the concrete, which is a far less disruptive and far less expensive fix than tearing out and replacing the entire slab.
Raising works best when the concrete itself is structurally sound. If the slab is badly cracked or broken apart, a full replacement through our concrete cutting and repour process may be the better path - and we will tell you honestly which option fits your situation after the site visit.
If a door that used to swing freely now drags on the floor, or a window that opened easily now jams, your foundation may have shifted. In Porterville, this often happens in late fall when the first rains arrive and the dry summer soil begins to expand again. It is one of the earliest and most reliable signs that something is moving underneath your home.
Hairline cracks in concrete are normal, but cracks that are widening, running diagonally, or separating at one edge are worth taking seriously. Porterville clay-heavy soils are prone to seasonal movement, and that movement shows up in the concrete over time. If you can fit a pencil into a crack, it is time to have someone take a look.
Walk across your concrete surfaces and pay attention to any spots where one section sits noticeably lower than the one next to it. That uneven edge is a trip hazard, and it is a sign that the soil underneath has shifted or washed away. This kind of settling is common in Porterville homes with older concrete poured on soil that was never properly compacted.
After a winter rainstorm, walk around the perimeter of your home and look for spots where water collects and sits rather than draining away. Standing water near your foundation softens the soil underneath, which accelerates settling. In Porterville, where winter rains can be intense after a long dry stretch, this is a pattern worth watching every season.
We perform foundation raising for driveways, patios, walkways, garage floors, and structural slabs throughout Porterville and the surrounding Central Valley cities. Two methods are available depending on the condition of your slab and the size of the void beneath it: mudjacking, which pumps a cement-and-soil slurry under the concrete, and polyurethane foam injection, which uses an expanding foam that hardens in about 15 minutes. Both methods drill small holes through the slab, pump material underneath, and patch the holes when the lifting is complete. For properties where a section of concrete has cracked beyond saving, we can combine raising with slab foundation building to replace the damaged section and tie it into the surrounding concrete cleanly.
For homeowners dealing with a slab that has dropped significantly after decades of seasonal soil movement, we assess the void size and slab condition before recommending a method. Mudjacking is typically less expensive and has a decades-long track record in Central Valley conditions. Foam injection costs more but is lighter, cures faster, and is better suited to smaller voids where precise control matters. Both deliver a level surface when the job is done correctly. We also work alongside concrete cutting when the damaged area needs to be removed before a new section can be poured and integrated with the surrounding concrete.
Best for homeowners who want a proven, cost-effective method for raising larger sections of driveway, patio, or garage floor concrete.
Best for homeowners who need fast curing, lighter fill material, or precise lifting of smaller concrete sections.
Best for properties with uneven edges between concrete panels that have become a trip hazard or are allowing water to pool.
Best for homeowners dealing with a home or garage floor that has dropped and is causing doors, windows, or floor finishes to show signs of movement.
Porterville sits at the eastern edge of the San Joaquin Valley, where the soils contain a significant amount of clay. Clay soil swells when it absorbs water and shrinks when it dries - and in Porterville's climate, that cycle happens every year. The long, dry summer leaves the soil contracted, and when the winter rains arrive, the ground expands again. That repeated movement is the primary reason foundations and concrete slabs settle here, and it is why foundation raising is a genuinely common repair for local homeowners rather than an unusual situation. Many homes in established Porterville neighborhoods were built in the 1950s through 1980s, when soil preparation standards were less rigorous - and slabs poured on inadequately compacted soil are more likely to develop voids over time.
If you are in one of the established neighborhoods near downtown Porterville, catching a settling slab early almost always means a simpler, less expensive repair. Homeowners in the newer subdivisions on the north and west sides of the city have seen less of this settling, but the underlying clay soil conditions are the same throughout the area. We serve Visalia and Tulare with the same team, and the clay soil conditions across Tulare County make foundation raising a regular part of our work throughout the region. Understanding what the local soil does each season is something that takes years of on-the-ground experience to know well.
When you call, we ask where the problem is, how long you have noticed it, and whether there are visible cracks. We can schedule an on-site visit within a few days. You do not need to prepare anything for the first call - just describe what you are seeing in plain terms.
We walk the affected area with you, check for cracks, measure how far the concrete has dropped, and look for clues about what caused the settling - things like drainage patterns or signs of a water leak. This visit takes 30 to 60 minutes, and you will receive a written estimate that explains the work, the method, and the total cost.
Before the crew arrives, clear the area around the slab - move furniture, potted plants, and vehicles. You do not need to leave your home during the job, but expect noise from the drilling equipment for part of the morning. We respond to any pre-work questions within 1 business day.
We drill small holes through the slab at measured intervals and pump material underneath until the concrete rises back to level. The actual lifting often takes just minutes per section. We then patch the drill holes and clean the work area before we leave. You can typically walk on the surface the same day.
Written quote. No pressure. We explain what we find before any work begins.
(559) 854-8821We hold the California C-8 Concrete Contractor license required by the CSLB for structural concrete work. You can verify our license number online before signing anything - it confirms we are authorized for this type of work and accountable if something does not go right.
We have raised foundations across Porterville and 11 surrounding cities throughout Tulare County. The clay soil conditions that cause slabs to settle here are consistent across the region, and we design every lift around those known variables - not a generic approach built for a different climate.
We know exactly when the City of Porterville Building Division requires a permit for foundation work. We handle the permit process on your behalf when one is needed, creating a paper trail that protects your home value and gives you documentation if you ever sell.
Every estimate we provide is written and itemized - the scope of work, the method, and the total cost are all spelled out before any work begins. We encourage you to get two or three quotes so you can compare. The lowest price is not always the best choice if the scope of work is different.
Knowing how Porterville soils behave through each season is not something you can learn from a manual. Our crew has worked through the summer heat and winter rains in this area long enough to know what a well-raised slab needs to last - and we bring that local knowledge to every job.
Concrete Foundations Association - industry standards for foundation work
For permit requirements, see the City of Porterville Building Division. To verify any contractor license, visit the California Contractors State License Board.
When a slab is too damaged to raise, we cut it out cleanly and prepare the area for a fresh pour.
Learn moreIf a portion of your slab needs full replacement rather than lifting, we pour new concrete designed for Porterville soil conditions.
Learn morePorterville wet seasons make existing settling worse - locking in your repair date now means one less thing to worry about this winter.