Concrete Raising & Leveling
Basement Floors
Basement Floor Slabjacking and Re-Leveling in Western WA
1-866-SLABJACK is your Seattle area expert for concrete leveling and raising in basement areas – where your floor may be sunken, sloped or cracked.  Slabjacking is ideal for leveling basement floors where access is often limited. It’s simple, clean, and usually completed in less than a day. We provide quick service to Bellevue, Tacoma, Everett, Bothell, Redmond and surrounding areas. Contact us today to schedule a free estimate with our team about your basement leveling or raising project today!
Why Slabjacking Is Especially Well-Suited for Basement Floors
Basement repairs present a challenge that most concrete lifting methods handle poorly: confined access. Replacing a basement floor requires demolishing the existing slab, removing the debris (through a basement which no small task!), re-grading the subbase, and pouring new concrete in a space with limited ventilation and no direct equipment access. It's disruptive, expensive, and typically puts the basement out of use for a week or more.
Slabjacking with polyurethane foam sidesteps all of that. Our equipment connects to injection ports through small drilled holes which means no excavation, no heavy machinery inside the home and no major demolition. The foam expands to fill voids and raise the slab precisely, then cures within minutes. The entire process is clean enough to perform in a finished basement with appropriate protection of surrounding surfaces.
This makes basement slabjacking a great solution in situations where replacement simply isn't: floors beneath finished walls, under built-in cabinetry, in mechanical rooms with equipment that can't easily be moved, or in homes where the logistics of a full demo and re-pour would be excessively complicated. The crew at 1-866-SLABJACK always works efficiently in tight spaces ,and leaves the area clean when the job is done.
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Basement Floor Settling vs. Foundation Problems: Understanding the Difference
One of the most common concerns homeowners raise when they notice a sinking basement floor is whether it signals a foundation problem. It's a good question, and the answer matters — because the two issues have very different causes and very different solutions.
A settling basement floor slab is a surface-level problem. The slab itself is sinking due to voids or soil movement beneath it, but the foundation walls, footings, and structural framing of the home are unaffected. This is far and away the most common cause of uneven basement floors, and it's what slabjacking is designed to correct.
Foundation settling involves the footings or walls moving, which can manifest as diagonal cracks in walls, doors and windows that stick or gap, visible bowing in basement walls, or gaps between the wall and the floor or ceiling. These are structural issues that require a different type of specialist — a foundation repair contractor — not a concrete lifting company.
During our free inspection, 1-866-SLABJACK assesses which situation you're dealing with. If we see signs that the issue extends beyond the floor slab to the structure itself, we'll tell you plainly and point you toward the right type of help. Our goal is to solve the right problem, not to push unnecessary or wrong solutions.
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