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Welcome To

Cornerstone Construction Services Inc.

A different kind of construction company

Cornerstone Construction is one of Central Ontario's leading providers of commercial and residential construction services. We've been constructing, renovation and restoring for a combined 40 years of solid experience as general contractors. From the first client consultation to the final project inspection we're your single source for design-build projects. 

Providing solutions...meeting and exceeding requirements

With over 40 years of experience and a team of knowledgeable staff, contractors and trade-partners, Cornerstone is proud to offer a full range of residential, industrial, commercial and institutional design, construction and renovation services.

Thinking about a project?
Give Us A Call!

Large or small, we would love to talk to you about whatever project you have in mind!

Contact Us
Kind Words From
Our Clients
  • quotes

    "Joe and I are VERY pleased with the work you have done for us. We feel you and your company and everyone who worked on our house did an exceptional job! On top of that, we wou..."

    Marg and Joe
  • quotes

    "I recommend your company to a lot of my family and friends! Not only is your work amazing, your response to issues is equally first class! ..."

    Irene Davies
Founded on knowledge and strong principles.
Committed to your satisfaction
With Us
  • 13-4 Alliance Blvd. Suite 414,
    Barrie, ON,
  • Phone: 705.730.6502
  • Toll Free: 877.776.7366
  • 16715 Yonge St. Suite 215,
    Newmarket, ON,
  • Phone: 705.730.6502
  • Toll Free: 877.776.7366

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