Over time, concrete surfaces can crack, sag, sink and become an eyesore & dangerous hazard. Jo Jacks Niagara offers a cost-effective alternative to traditional methods of replacing or re-pouring worn concrete slabs. This unique “slabjacking” system actually lifts the existing concrete and leaves the surface looking new. Owner Ken Ledwez has been a St. Catharines resident all his life, and has had the privilege of working with homeowners and municipalities across the Niagara Region for the past 18 years. Ken and the Jo Jacks Niagara team take great pride in their craftsmanship, and provide slabjacking repairs to sidewalks, driveways, patios, garage floors and any poured concrete slab. The Jo Jacks concrete lifting process is effective, efficient and available to homeowners at a fraction of the cost of slab replacement.