Building Exceptional Spaces

At Blue Square Builders, we believe in bringing designer details to life through refined and meticulous craftsmanship. We specialize in those intricate, hard-to-achieve, artfully created features that elevate the style and value of your home.

Carpentry-Based
General Contracting

Structural & Technical Expertise

Finishing & Aesthetic Enhancements

PROJECT
MANAGEMENT

I wholeheartedly recommend David and Blue Square Builders to any designer or homeowner looking for a contractor who not only meets but exceeds expectations. Their dedication to quality and client satisfaction is truly exceptional. I look forward to working with them on many more projects in the future!

Blue Design Studio, Toronto
David renovated three bathrooms in our Toronto townhouse, taking them from builder basic to beautiful. From helping us choose finishes to understanding who and how we used each space, David really made this a stress-free project for us. It also greatly increased the overall value of our home.

Gord, Toronto
David recently renovated our basement after we had sustained water damage in a flood. Before we jumped into restoring the space, David was incredibly thoughtful in taking key steps to mitigate against any future water issues we may encounter. David was a key partner in helping us not just restore the finished basement, but build it back better - more storage, better aesthetics, and improved flow and functionality. We have had many compliments on our basement now - it's a vibe!

Heather, Oakville
We are absolutely thrilled with the work provided by David at Blue Square Builders! From start to finish the team went above and beyond to ensure every detail was perfect. Communication was clear and consistent, and they worked with us to fine-tune every aspect of the project. The workmanship was second to none – the completed work is stunning and exceeded all expectations.

Shadi, Toronto
What really set Blue Square Builders apart was their dedication to quality and customer satisfaction. David truly cares about his clients and takes pride in the work. I wouldn't hesitate for a moment to recommend Blue Square Build for any construction project, big or small.

Shadi, Toronto
We worked with David on two large-scale projects within two years and we look forward to working with him in the future. He is knowledgeable, affable, and very responsive to questions or concerns. Renovations are never fun, but having a Contractor who takes the time to walk you through every step, follows the agreed upon timeline, and comes in on budget is worth their weight in gold. Everyone should have a David in their life.

Julie, Toronto
Working with Blue Square Builders has been an absolute pleasure from start to finish. The attention to detail, craftsmanship, and commitment to quality is unparalleled. What sets them apart is not only their technical expertise but also their ability to collaborate seamlessly with the design vision. They executed everything flawlessly, no matter how complex. Custom millwork, intricate moldings, complex wall treatments--every element was completed to perfection.

Blue Design Studio, Toronto

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Redefining Home Renovations

At Blue Square Builders, we go beyond renovating and building homes — we build relationships, comfort, and exceptional experiences. Here’s what sets us apart.

founder-led excellence

As founder and owner, David McGuire is hands-on at every step, ensuring your vision is brought to life with care and precision. Each project is tailored to suit the unique needs of the clients—collaboration is key and it starts at the first meeting.

specializing in details

We focus on the fine finishes and one-of-a-kind features that elevate your home from functional to truly exceptional.

transparent communication

From detailed estimates to regular updates, we prioritize clear and honest communication, so you’re never left in the dark.

streamlined, tidy processes

Our thoughtful approach minimizes disruption, making your renovation journey as smooth, stress-free, and efficient as possible.

Creating Spaces That Inspire and Endure

Toronto-based Blue Square Builders Ltd, led by David McGuire, combines 25 years of experience with a unique blend of artistic and technical expertise.

David’s background

David has worked as a general contractor and carpenter in both Canada and the US. Most recently leading a team of craftsmen with a noted Toronto builder; working closely with clients and designers in creating beautiful homes in the Beach, Leslieville, and Rosedale neighbourhoods.

David’s academic background spans a B.Sc. in Mathematics from McMaster University and a B.F.A. in Critical + Cultural Practice from Emily Carr University.

Possessing a strong foundation in custom production techniques, David has contributed to international art exhibitions and produced holiday window displays for major department stores.

Our Services & Expertise

- Kitchen and Bathroom Renovations
- Full-Gut Renovations, Additions, and Basements
- Decks and Fences
- Millwork, Built-Ins, and Custom Details
- Interior Trim, Doors, and Feature Walls
- Flooring and Tile
- Exterior Finishes
- Structural Steel
- Basement Waterproofing and Underpinning
- Stairs & Railings
- Windows and Exterior Doors
- Building Envelope Improvement
- Painting and Interior Finishing
- Custom Furniture, Shelving, and Accent Details
- Art Features and Designer-Centric Builds
- Comprehensive Estimation and Budget Reporting
- Designer Collaboration
- Client Experience Tailored for Comprehensive Remodelling Projects
- Design/Build Partnerships for Custom Homes
- Collaborative Material Selection Processes
- Green Roof Technology
- High-Efficiency Systems
- Low-Carbon & Offsets