Here are some answers to frequent question that we are asked. If you have a question that is not answered by this page please call our office and one of our highly trained staff members will be glad to assist you.

Slabjacking / Mudjacking FAQ

1. What made my concrete settle ?

There are many reasons why concrete settles. Some of the most common are:

WATER EROSION – Water infiltrating the subbase (the base beneath the slab). The common sources are open joints or cracks in the slab, gutters that channel the rainwater towards the slab, and poor drainage.

BURROWING ANIMALS – In our area chipmunks are tireless burrowers. Once begun, the hollows are prime location for snakes, wasps, and other rodents as well as making a perfect place for water to collect.

INSUFFICIENT COMPACTION – Uncompacted or poorly compacted subbase will tend to settle over time. The concrete slab with no support below will naturally follow the subbase down as it settles.

2. Why raise the concrete instead of replacing?

Slabjacking has many advantages over new, the most important of which are:
COST – Slabjacking usually costs less than half the cost of new and sometimes far less.
TIME – Many times the jacked concrete can be driven or walked on the same day we repair it. Whereas new concrete involves the demolition and removal of the concrete, pouring new concrete, and cure time of the fresh concrete. This process can take up to two weeks or more.
APPEARANCE – New concrete is invariably a different color than the remaining concrete. A large patched section will be conspicuous to the eye. Slabjacking uses only a few small holes that blend in more inconspicuously.
CONVENIENCE – One of the advantages we are complimented on the most is the convenience of our process. There is no heavy equipment on the lawns or landscaping,
and the noise is at a minimum.

3. How much does it cost ?

Every job has different variables that we have to consider to give an accurate estimate of cost. On an average we save customers anywhere between 40% to 90% over the cost of removal and replacement.

Imagine what costs could be accrued if a slab that has fallen and drains water into a foundation or basement were not to be solved and if person falls and injures themselves on a triphazard that has not been fixed.

Slabjacking is usually less than half the cost of pouring new slabs. However, the savings may be even greater, since demolition and removal costs are eliminated, and no landscaping is required.

4. How long does it take ?

Most jobs are completed within one day and can be walked on just minutes after the holes are patched. Cars can be driven and parked only 24hrs after job is completed.

5. Is Slabjacking a new technique ?

No, Slabjacking has been used since the early 1930’s.

6. Do you resurface or put a coating on the concrete ?

No, we raise the concrete and patch the holes with a high strength, fast setting patch material, then the concrete is rinsed off with water.

7. Can slabjacking be done in the rain ?

Yes, Slabjacking can be performed in any weather as long as the Truck and Equipment can get to the job site safely.

8. Have you done work in my area ?

Probably, Call our office for references in your area.

9. Do you pump concrete under our slab ?

No, we use a blended material made up of non-organic soil, fine sand, water, and cement. Our material weighs approx. half the weight of concrete and is ideal for replacing the soil that has settled or washed away under your slab.

10. Is your work guaranteed ?

“We offer a 5 year transferable guarantee for concrete lifting and stabilizing works. We will also help to locate the reason for settlement and advise on how to remedy the problem.”