The idea of transforming a space to suit your individual style is exciting. But you’ve seen HGTV – you know construction projects are often fraught with stress! Not with DeMansou.

We take the worry out of building, renovation and remodeling. It’s our passion and focus as we deliver honest, reliable, professional construction services for residential and commercial properties.

We keep our promises: that means we’re on time, every time; we complete projects to exceptionally high standards, on time and budget; and we communicate with our clients throughout the process. We never inflate estimates. Clients pay us for the time we are working at their property, and no more.


Our Services

From small renovations to additions and new home construction.​

We are proud to run an ethical business that’s earned the trust of happy clients in the Greater Toronto Area (GTA) for almost thirty years. All of our work comes with a one-year warranty to ensure your satisfaction.

Our team of skilled tradespeople looks forward to serving you. Call us to talk about your residential or commercial project. There are very few jobs we can’t take on. We excel in the following:

We also specialize in barrier-free living, too.

Learn more here.

Beautiful gardens and grounds. Safe, accessible driveways and paths with curb appeal.

From designing and outfitting retail stores to building new structures for institutions.

Interesting how things happen, says John...
"Manny and I  both happen to be purchasing supplies for our respective small renovations companies at the same building supplier when  the store owner introduced us".

"After a few minutes of "trade talk", it was clear that we shared very similar ideas about the way construction should be done.  I suspected we'd work well together, so I showed Manny the blueprints for a construction project I needed help with... That was 1988 - I was right!"

Manny and John got together nearly thirty years ago to provide high-quality construction services with a conscientious approach. Good, old-fashioned craftsmanship delivered with a strong, positive work ethic, professionalism and integrity combined with the finest tools modern technology and a very skilled team members make for a great team!  

Copyright © 2016 Demansou Construction Ltd.  All Rights Reserved.




Modifications for accessibility. Comfortable living for all ages, preferences and physical abilities.