Cornerstone Construction

Cornerstone Construction is a renovation contractor serving Oshawa, Whitby, Bowmanville, Ajax, Pickering and the rest of Durham Region. Led by Mike Brock, it renovates kitchens, bathrooms and basements, builds additions, second storeys and detached garages, and does tenant fit-ups, office builds and retail spaces. Services include BCIN design and permit drawings, and permits are pulled wherever a job requires one. It carries liability insurance and current WSIB coverage and gives a 5-year written workmanship warranty. Reviewers mention attention to detail and kitchen design. 22 Google reviewers give it an average of 4.6 out of 5, with 20 at the top mark.