BEST FOUNDATION REPAIR AND WATERPROOFING SOLUTIONS

Slab Jacking

Look at the ways Robbins and Company fixes common foundation problems.

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Slab-jacking, also known as mud-jacking, is an effective method for repairing sunken concrete slabs without the need to remove and replace them. This technique typically costs less than half the price of pouring new concrete, making it a budget-friendly solution for concrete repairs.

Additionally, the savings can be even more substantial, as you won’t incur costs for demolition, removal, or landscaping. Most projects are completed quickly and efficiently, causing minimal disruption to your daily routine. Our foundation repair experts can raise a patio in the morning, allowing you to enjoy it with family or guests that very evening! Check out our  service area information for more details.

When you need to raise a sinking slab, slab-jacking is a cost-effective alternative to concrete replacement. At Robbins and Co., we use this method across the Greater Seattle area to repair sidewalks, streets, ramps, patios, driveways, floors, parking lots, and garage floors—essentially any concrete surface. It’s effective for both commercial and residential projects.

Because we don’t remove the old concrete, there’s minimal mess or inconvenience. Surrounding sod remains intact, eliminating the need for re-seeding and waiting for grass to grow. Plus, the newly raised slabs can be put back into service immediately after the job is completed—there’s no waiting for the grout to cure!

Mudjacking VS POLY FOAM

MUDJACKING

  • 100% natural earth material
  • Reasonably priced
  • Has been used successfully on Highways, Air Strips, Floors and more
  • Very low failure of approx. 1%
  • Non Flammable
  • Non Toxic

Mudjacking VS POLY FOAM

POLY LEVELING
  • Chemically man made
  • Typically higher cost
  • Newer process. Long term effects or results of poly foam unknown
  • Failure rate unknown
  • Highly flammable
  • Toxic
  • Guarantee is only as good as company/contractor/applicator!

Serving The Pacific Northwest since 1952

We are so confident you will be happy with our work that in most cases we require no payment until the work is completed.
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COST EFFECTIVE

WHY SLAB-JACKING IS COST EFFECTIVE

At Robbins and Co., we believe slab-jacking is a more cost-effective solution for raising slabs in your Seattle-area home compared to digging up and replacing the entire surface. This method is quick, minimally messy, and a highly effective fix for sinking concrete.

Instead of replacing the slab, we pump a unique mixture under pressure beneath it to restore the necessary level. This liquid material solidifies through a chemical reaction, creating a dense base that is far more resistant to compression than the original soil.

As you do not have to raise the slab and fill the area needed, or break up and replace the slab, this allows you to inexpensively produce a quicker result that can be even more permanent than the original construction work. There is no need to disturb the surrounding area with other construction equipment or movement. Our mixture is pumped in from the street or driveway area through long hoses so your landscaping is not disturbed.

“The work done lifting our front porch using your slabjack technology was a great success.

Thanks so much.” ~ Bud C. Bothell, WA

**View Foundation Repair Before and After Pictures**
Sinking Driveway Slab
CAUSES
CAUSES OF SINKING SLABS
Like foundations, slabs settle due to:
  • Moisture and its effects
  • Fill dirt used during original construction

Moisture can cause the soil beneath your concrete slab to compact and shift. When water isn’t drained properly, one side of the slab may compress the soil more than the other, leading to uneven support. Additionally, excess moisture in the soil can cause your slab to “heave” during freezing conditions, only to drop again as the moisture evaporates or wicks away.

Moisture can lead to compaction and shifting of the soil beneath your concrete slab. When water isn’t drained properly, one side may compress the soil more than the other. Additionally, moisture in the soil can cause your slab to “heave” during freezing temperatures, only to settle back down as the moisture evaporates.

Often, fill soil made of sand or gravel may not have been adequately compacted before the concrete was poured. Over time, the weight of the slab and variations in moisture can cause this soil to compress further. In some cases, the fill soil may consist of different materials, such as original clay, topsoil, or sand used to fill low areas. Burrowing rodents or other animals can also disturb the soil, compromising its support.

It’s important to note that slab-jacking is intended for smaller slabs and is not a solution for leveling homes or addressing foundational issues. An inspection and estimate are necessary to determine if slab-jacking is the right approach or if another solution is needed.

Contact us for a free consultation and estimate. We’re here to help with any structural problems you may face!