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"We believe in a unique and customized design experience for every client."
- André Thériault
André Thériault.jpg

André Thériault

President and Senior Designer

About Us

Here at Theriault Design we understand how important your dream home is to you and we are committed to giving you the best results and quality drawings. Our bilingual team will walk you through your journey from the time you come in with your ideas to the final steps of construction.

Andre is the founder of Theriault Design.  He has over 40 years of experience working with engineers, contractors, design and project management.  


Sebastien, Senior Technologist has 15 years of experience and will tinker out the very important details making sure your design is up to code and pass the permit process.


We offer a wide range of services, all designed to help you reach your goal. Call us now for some inspiration whether it’s a renovation or new construction and we will work hard to find an innovative solution!

Our business is registered with a Building Code Identification Number (BCIN) for Ontario.

Our Clients Speak

“ When our backs were against the wall, we didn't know where to turn for help. Fortunately, we heard about Theraiault Design and their experience dealing with the Committee of Adjustment and from our first meeting we knew our project was in good hands. We got our approval from the Committee and finished the construction on time. ” 


T. Sabourin

“ I love that Theriault Design took the time to learn about my business before presenting a design & renovation plan that will ultimately help for my business growth.

Thanks, Theriault Design! ”

- C. Jones

Tell us about your experience with us

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