The company is also known as Interlock Natural Stone Design and Roofing Interlock Waterproofing. We hired Jerry, the owner to re-do our interlocking driveway with power wash and finishing sealant. We thought that we had some reassurance about his work when we checked out one of his previous jobs and spoke to the owner of the house. We were badly mistaken. Even though we had a written contract, he refused to abide by the terms that we agreed upon. Upon the first payment he wanted more money, as he stated that the driveway was larger than he initially thought and it would cost him more money to complete. He refused to acknowledge that he agreed to the contract price and that it was our fault that the driveway was larger than he originally estimated. He never managed to power wash the driveway, the patio or finish the sealant even though we had paid for this and it was written in the contract. According to him, those deliverables were to be done "free of charge" by him anyway, so no reimubursement would be given. This is a classic case of bait and switch and renegotiation of a contract. We had several arguments with him about his inability to deliver upon the contract and he was completely unreasonable and hostile towards us. I also do not appreciate that he yelled at me at my home, in front of my neighbours because I removed his company sign from my front lawn This company is not reliable, untrustworthy and did nothing to deserve my business or my referral. He is absolutely relentless for payment, but nowhere to be found when work needed to be finished. In the end, I had to hire another company to finish the job. It's not worth dealing with this guy, it will cost you more money and you will waste a lot of time arguing with him about non negotiable items that are already in your contract. Don't make the mistake that we did, keep looking.