Before & After Photos

Quality 1st Basement Systems received a call about sinking slabs outside of an office building in Hoboken, NJ. The slabs created a tripping hazard and with the winter weather approaching, the building manager wanted to get it lifted right away. The installation crew drilled a small hole into each slab, pumping the PolyLevel underneath. The PolyLevel then begins to expand and harden, lifting the slab back to the original level. PolyLevel removed the tripping hazard without having to remove and replace the concrete. 

With help from both our System Design Specialist, Jay and PolyLevel Foreman, Iian, Quality 1st Basements was able to provide a permanent solution to the sinking patio area in Old Tappan, NJ. The homeowner had contacted Quality 1st when they got tired of the puddles forming in the middle of their patio from the settlement. They wanted to avoid replacing the patio area at all cost. 

Iian was able to lift all for sinking slabs back to level, removing the dip in the patio. Now with the patio leveled, water would no longer get trapped in the middle and simply flow towards the grass. 

What began as a slight dip in the sidewalk soon became a daily safety concern for a homeowner in Westwood, NJ. The entryway concrete had gradually sunk and shifted, creating uneven surfaces and trip hazards for anyone approaching the front door. Concerned about both safety and curb appeal, the homeowner reached out to Quality 1st for a permanent solution.

Upon inspection, our team discovered that the concrete settlement was caused by unstable soil conditions, specifically erosion and poor compaction beneath the slab.

To correct the issue, we implemented a tailored repair plan using our innovative PolyLevel Foam Injection System. This lightweight, expanding foam was injected beneath the sunken sidewalk to fill voids and raise the concrete back to a level position with precision. Once lifted, we sealed all joints and cracks with our NexusPro Joint Sealant, which prevents water infiltration and future soil washout.

This dynamic approach not only restored the sidewalk’s safety and appearance but also provided long-term protection, giving the homeowner complete confidence in their newly stabilized entryway.

A North Bergen, NJ, homeowner became fed up with settlement issues surrounding their front sidewalk, which had begun to sink and settle, creating dangerous tripping hazards. As a solution, our System Sesign Specialist, Joseph, provided an inspection and suggested a polyurethane foam be injected. Our foreman JD to install our heavy-duty PolyLevel Foam Injections to lift and level the sinking slabs to their designated surface height, along with a full application of our ultraviolet-resistant NexusPro Joint Sealant to seal cracks and joints and prevent erosion.

Our concrete repair team supplied the homeowner with peace of mind, by reinforcing both the safety and visual appearance of their sidewalk.

The slabs around a Teaneck, NJ swimming pool were sinking into the ground. Quality 1st Basement Systems raised them back up into place by injecting PolyLevel under the concrete. Now the pool is safer and ready for summer fun!