Transforming Spaces Across Toronto, Durham Region, and Beyond
Expert Home and Commercial Renovations in Toronto and Durham Region | Experience the Cornerstone Difference
At Cornerstone Construction, we deliver expert craftsmanship to homes and businesses across Oshawa, Bowmanville, Whitby, Toronto, and the GTA. Whether transforming a home or enhancing a commercial space, we bring stress-free renovations tailored to your vision.
Reliable Construction Services Across Durham Region and GTA: We Listen, We Build, We Deliver
Every project begins with understanding your needs and vision. From the first consultation to the final walkthrough, we prioritize clear communication, expert craftsmanship, and delivering exceptional results.
Whether it’s a stunning kitchen renovation in North York, a complete home transformation in Bowmanville, or a retail fit-out in downtown Toronto, every detail of our work reflects your unique goals and enhances your space.
Our approach is simple yet effective:
We Listen: Your ideas, goals, and needs drive every step of the project.
We Build: Our skilled team transforms your vision into reality with expert craftsmanship and innovative techniques.
We Deliver: On time and on budget, with results that stand the test of time.
Our Philosophy:
"At Cornerstone Construction, we don’t just build spaces—we build trust. Our philosophy is simple: We treat every project as if it’s our own, combining a passion for craftsmanship with a relentless focus on client satisfaction. Whether it’s a family home or a bustling storefront, our job isn’t finished until our clients are genuinely thrilled with the result." – Mike Brock, Founder
Our Core Values
Every successful project begins with a solid foundation, and for us, that foundation is built on these guiding principles. These values define how we work, inspire every decision we make, and ensure each project reflects our commitment to excellence:
Integrity
We believe in always doing the right thing. Honesty and strong moral principles guide our decisions and shape our relationships.
Reliability
You can count on us to deliver on our promises. We consistently meet timelines and exceed expectations from the initial consultation to the final walkthrough.
Accountability
We take full responsibility for our work. When challenges arise, we address them with transparency and a commitment to achieving the best outcome.
Pride
Our attention to detail and commitment to excellence reflects the pride we take in every project, whether it’s the quality of our work or our professional appearance.
Efficiency
Your time and resources matter. We streamline processes, provide access to tools like our Client Portal, and ensure your project is completed smoothly, on time, and within budget.
Respect
We treat clients, team members, and partners with fairness and consideration, fostering trust and collaboration at every turn.
Honesty
Transparency is at the heart of everything we do. We ensure clear communication so you always feel informed and confident throughout your project.
Teamwork
Collaboration drives success. By uniting skills, ideas, and expertise, we deliver outstanding results that reflect your vision and goals.
Your Vision, Our Focus
Stress-Free Home and Commercial Renovations in Durham Region and Toronto
Renovations and construction can be complex, but we make the process seamless and enjoyable. With over 30 years of experience, we deliver personalized solutions that align with your vision, timeline, and budget.
Why We Stand Out in the GTA:
Personalized Designs: Tailored to meet the unique needs of Toronto homeowners and businesses.
Eco-Friendly Practices: Using sustainable materials to create beautiful, responsible spaces.
Clear Communication: Providing regular updates so you’re informed at every step of the journey.
We’re dedicated to creating spaces that inspire and elevate, whether it’s a custom home renovation or a commercial construction project. Our focus is always on delivering exceptional results tailored to your unique needs.
Custom Home Renovations in Oshawa, Bowmanville, and Durham Region
At Cornerstone Construction, we provide a comprehensive range of renovation and remodelling services designed to meet the unique needs of homeowners across the GTA and surrounding areas.
Kitchen Renovations for Homes in Durham Region
Bring your dream kitchen to life with expert kitchen renovations in Oshawa, Whitby, and across Durham Region. From custom cabinetry to modern layouts, we deliver functional, stylish kitchens tailored to your lifestyle.
Bathroom Upgrades to Transform Homes in Oshawa and Beyond
Transform your bathroom with luxurious upgrades in Oshawa, Bowmanville, and Toronto. We blend practical design with spa-like comfort.
Basement Renovations Across Durham Region and GTA
Make the most of your home with innovative basement renovations in Durham Region. Whether it’s a home office in Oshawa or an entertainment space in Whitby, we bring creative solutions to life.
Whole-Home Transformations in Durham Region and Toronto
Seamlessly transform your entire home with cohesive renovations in Toronto, Pickering, and Ajax. We create spaces that reflect your lifestyle.
Check out our Residential Services page for a complete list of what we offer and discover how Cornerstone Construction can bring your renovation dreams to life. Whether you’re in the heart of the city or the surrounding suburbs, we ensure your project reflects your vision and delivers exceptional results in Toronto, Oshawa, and throughout the Durham Region.
Commercial Renovation Solutions for Durham Region and Toronto Businesses
From dynamic retail spaces to efficient office environments, we provide commercial construction services that help businesses thrive.
Retail and Store Fit-Ups in Durham Region and the GTA
We create retail spaces in Durham Region and Toronto that enhance customer engagement and align with your brand’s goals.
Restaurant Renovations for Growing Businesses in Oshawa and Toronto
From kitchen layouts to dining areas, our restaurant renovations in Oshawa and Toronto improve workflow and enhance customer experiences.
Office Space Renovations for Modern Workplaces in Durham Region and the GTA
Boost workplace productivity with modern office renovations in Durham Region, Whitby, and the GTA. From ergonomic designs to professional finishes, we build workspaces that work.
Landlord and Tenant Improvement Work in Durham Region
Maximize your property’s potential with landlord and tenant improvements in Oshawa, Bowmanville, and throughout the Durham Region. From compliance upgrades to surface restorations, we ensure your space is move-in ready for new tenants.
Why Choose Cornerstone Construction for Your Next Project?
At Cornerstone Construction, we don’t just build spaces—we build trust. Our commitment to excellence sets us apart as a trusted partner for homeowners and businesses across Oshawa, Durham Region, and Toronto.
For Homeowners
Personalized Renovations: We work closely with you to create spaces that reflect your unique style and enhance your lifestyle.
Stress-Free Process: From concept to completion, we handle every detail, ensuring a smooth, enjoyable renovation experience.
Sustainable Solutions: We integrate eco-friendly practices and materials, creating homes that are as responsible as they are beautiful.
For Businesses
Tailored Commercial Spaces: We design and build environments that align with your brand and operational needs, whether it’s a retail fit-out, restaurant renovation, or office upgrade.
Efficient Execution: We prioritize timelines and budgets, minimizing disruptions to your business operations.
Nationwide Service: From local projects to national rollouts, we bring expertise and consistency across all locations.
Our Commitment to Excellence
Over 30 Years of Experience: A legacy of delivering exceptional quality in residential and commercial renovation projects.
Client-Centered Approach: Your vision drives every decision, and your satisfaction is our ultimate goal.
Exceptional Craftsmanship: We combine innovative techniques with attention to detail to create spaces that stand the test of time.
Clear Communication: Stay informed at every stage with regular updates and transparent processes.
Whether you're transforming a kitchen in Oshawa, upgrading an office space in Durham Region, or renovating a retail store in Toronto, Cornerstone Construction delivers results that exceed expectations.
About Michael Brock
Founder of Cornerstone Construction | Dedicated to Excellence in Craftsmanship
With a lifetime of hands-on experience in construction, Michael Brock brings passion, precision, and dedication to every project. As the founder of Cornerstone Construction, his journey reflects a commitment to hard work and delivering exceptional results for his clients.
Michael Brock
Founder
About Mike Brock
Founder of Cornerstone Construction
I’m Mike Brock, the founder of Cornerstone Construction, and my journey in construction began at an early age. When I was just in grade five, I spent my summer breaks working for a family friend, George Mutton, at Mutton Masonry. It was demanding work for someone my age—wheeling cement, lifting cinder blocks, and learning the foundations of construction as we formed and poured footings, built block basement walls, and laid concrete floors. Those summers taught me the value of hard work and the pride that comes with a job well done. I worked with George for five formative years.
At 17, I discovered my passion for woodworking thanks to a generous mentor, Slip Rowe. He welcomed me into his shop, teaching me the basics and sparking a lifelong love for the craft. My skills grew steadily from that foundation.
In my late 20s, I took on a unique challenge: working on ship interiors. I spent four years under the guidance of Oskar, a veteran shipbuilder from Denmark. Anyone who’s worked on boats knows the complexity of crafting in an environment without level surfaces or square angles. Every fitting required precision and an intuitive understanding of the compound angles of the hull. This experience sharpened my eyes and refined my craftsmanship to the highest standard.
Later, my career took me into the fast-paced world of commercial construction. For 16 years, I honed my skills in building retail stores, restaurants, tenant fit-ups, and back-to-base projects for landlords and property management companies.
In 2016, I founded Cornerstone Construction to bring my skills and expertise directly to my clients. Whether it’s a home renovation, a commercial build, or a custom woodworking project, I take pride in delivering solutions that reflect the values I learned early in my career: hard work, precision, and craftsmanship.
I’m passionate about helping clients bring their visions to life, and I look forward to working with you.
Michael Brock
Let’s Build Your Vision Together
Ready to transform your space? Whether it’s a stunning kitchen renovation in Oshawa, a bathroom upgrade in Bowmanville, or a commercial fit-up in Durham Region, Cornerstone Construction delivers results you’ll love. Contact us today to start your project!
With over 30 years of experience serving Durham Region, Toronto, and the GTA, we deliver results that reflect your style, meet your goals, and stand the test of time.