Rock Bottom Underpinning is a top-tier underpinning company in Toronto that provides dependable basement expansions in homes. We have extensive expertise in this subject and have established a solid name in the underpinning construction business. Do you want to learn more about our services and prices? Please contact us. Contact Details Address 3-1750 The Queensway Suite 1206, Etobicoke, Ontario, M9C 5H5, Canada Open 24 Hours Phone No 4165463558