Polyjacking vs Mudjacking in Hollywood, FL: Foam Vs Mudjacking and Mudjacking Vs Polyurethane Foam

Polyjacking drills penny-size holes and injects liquid polyurethane foam under pressure. The foam expands, compacts the soil and raises the slab, and pressure gauges show when the base is firm. Mudjacking drills holes too, but it pumps a cement-based slurry under the slab. Slab jacking vs foam therefore comes down to what is pumped under the concrete.

The slurry works by weight and volume, and the foam works by expansion. Slurry fills the space it is pumped into and then stays put. A small amount of foam grows many times its liquid size and pushes into every gap it can reach. Foam is lighter, so it adds little load to soil that is already soft. Mudjacking needs larger holes, and the slurry has to dry before the slab is at full strength. Both methods need the crew to watch the slab rise, because over-lifting cracks the concrete. Gauges and a level guide the lift, and the crew stops when the surface is flush with the slab beside it. A crew that rushes either method risks cracking the concrete it is trying to save.

Both methods work when the slab is intact, so the choice turns on two things, and neither one replaces a careful estimate. The first is the ground under the slab, and the second is how soon you need the surface back. The next sections cover both, with the numbers for each, and the last section ties them to the surface you are fixing.

Hollywood sits on sand over limestone, and the water table in Margate and Basinger fine sand reaches 0 inches in the wettest months. Sand fill compacts poorly, so the base under a slab is already soft. A heavy slurry adds weight to that base, and a slurry can wash out when water moves through the sand again.

Foam is water-resistant, and it does not wash out. In a county where the ground is wet for months at a time, that is the property that decides how long the lift lasts. It also compacts the loose sand as it expands, which treats the cause of the drop. Hollywood gets about 56 inches of rain a year, with nearly 70% of it in the rainy season from May 15 to October 15. Which is better, mudjacking or foam, depends on the slab, but in wet sand the foam’s resistance to water carries real weight.

Mudjacking still has a place on a Hollywood property. A large, even void with open access for the pump is the kind of job where slurry works and the budget stays low. The estimate says which one fits your slab, and it does not push the more expensive option when the cheaper one will hold. A homeowner who plans to sell soon, or who has a back walkway that sees little traffic, may reasonably pick slurry and save the difference. A homeowner with a pool deck or a driveway used every day gets more from the foam. Condo associations and property managers tend to pick foam for walkways, since a closed path for two or three days creates more trouble than the price difference.