We Raise Sunken Concrete. When your little one stubs his toe on the uneven concrete round the pool or on the front walkway, it doesn't necessarily mean you have to replace the entire area. It does mean, however, that it's time to call JoJacks and see if the slab can be fixed without having to replace it.Greg Sykes will come to your home -at no charge, of course -will examine the offending slab and will let you know how he will do the job, how long it will take and he will give you an estimate of cost. Once hired, he will carefully raise the sunken concrete so that the pathway, driveway or patio looks whole again and will no longer be a threat to little toes -a two-year warranty will assure you of that. Then you will have a walkway or pool surround that will no longer be an eyesore or a safety hazard. Sykes established JoJacks in St. Catharines in 2002, coming from Windsor where he had managed a similar company. Deciding it was time to set up in business for himself, he discovered that St. Catharines is a city in need of a service of this kind. While JoJacks deals mostly with residential properties, Greg also deals with commercial and government work in Niagara. Call today for your free estimate. more... See more text