Guelph Tool Repair Service

I used this business in 2014 for warranty replacement for RIDGID power tools. However, I attempted to contact them again this month. The phone rang and rang, but there was no answer and no answering service. I travelled to the location and found it locked, even though the business sign was still over the door. I was informed by the people in the adjoining unit that Guelph Tool Repair has not been operating since 2016, and the unit has been closed since then. No contact information is available.