WHAT OUR CLIENTS SAY
20 Reasons Durham Region Homeowners Trust Cornerstone
Real projects. Real neighbours. Real results.
BORN AND RAISED IN DURHAM REGION
Accountability You Can Trust
Cornerstone Construction isn't just another renovation firm — we're your neighbours. And in a community this tight, reputation is everything. When you hire Cornerstone, you aren't just getting a crew of trades. You're getting a neighbour who can't hide behind a corporate head office in another province. If you see Mike at the Oshawa Costco or at a rink in Whitby, he's going to be able to look you in the eye — because he stands behind every miter joint and tile line we lay.
"In construction, things don't always go perfectly. But in Durham, word travels fast. Our customers know they can reach me directly. We don't have a call centre or a customer service department — you get Mike Brock personally, within 24 hours, ready to make it right. That's the Cornerstone difference. We don't just build houses. We build the community we live in."
— Mike Brock, Founder
GOOGLE REVIEWS
4.6 out of 5
Based on 20 Google Reviews. We take pride in delivering quality craftsmanship and reliable service to every homeowner.
What Our Clients Say
""From the 3 options I sourced, Mike was the most professional and punctual. We had a 5pm appointment and true to his word, my bell chimed exactly at 5pm. Throughout the entire process, Mike arrived on time every day, provided daily walkthroughs and next steps, and cleaned up every time. If it's not straight, then it's not correct. He will make sure that it is. He will now be the only contractor to touch ANY part of my house. Professional: 10/10. Punctual: 10/10. Polite: 10/10. Knowledgeable: 10/10.""
""We had a great experience working with this general contractor from start to finish. Communication was clear, timelines were respected, and the quality of work exceeded our expectations. Every detail was handled professionally, and any questions we had were addressed quickly. It's rare to find someone this reliable and skilled — highly recommend.""
""Mike completed a large renovation for us in Durham Region. The project was well done, the attention to detail really makes it appear well done. Mike spends all of his time working on your project which makes it extremely easy to meet and review the project as it evolves. Overall a good experience.""
"""I was very impressed with the quality of workmanship and customer service provided by Cornerstone Construction. Mike was very professional and knowledgeable fixing my garage ceiling water damage and identifying the cause of the leak. He was excellent at keeping me in the loop and involved in the process. I would definitely hire them again.""
""Working with Mike and his team was great. Very professional and know what they are doing. I would recommend them and I will for sure work with them again.""
""I had a great experience meeting Mike. He did an amazing job on my kitchen renovation from start to finish. I couldn't be more pleased with the workmanship from his company.""
""I am so impressed with the quality of work and professionalism of this company. Right from the beginning Mike was very responsive — coming to my home to really understand what needed to be done to give me the results I wanted within my budget. I highly recommend this company for any project.""
""Dreams do come true. Mike and his team successfully transformed the kitchen into a stunning space. Their expertise and professionalism are reflected in the quality of their work.""
""Cornerstone Construction is the very best — professional and experienced. I wanted someone I could trust and they definitely delivered. I am very happy with the beautiful results.""
Verified Google Reviews
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