The idea of transforming a space to suit your individual style is exciting.  But as most of you have seen on HGTV – construction projects are most often burdened with a great deal stress and challenges!  Not with DeMansou!

Operating in the Greater Toronto Area since 1990, Demansou has built a solid reputation founded on the principle of continuously delivering honest, reliable and professional construction services so as to achieve their ultimate goal - that is – “ every customer is completely satisfied with each project, each and every time”!

Demansou’s team of highly skilled trades offers expertise in residential, mixed-used, commercial and barrier-free construction services.  So whether you are considering a custom build design, renovations, retrofit or remodeling, Demansou maintains its unvarying pledge:  that means that all our projects are completed on time and on budget, we provide quality workmanship and exceptional customer service by keeping the client informed throughout the entire process and, where needed or requested providing guidance and/or recommendations while always taking into consideration the client’s needs and budget.

Copyright © 2016 Demansou Construction Ltd.  All Rights Reserved.

Our Services


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!  

From small renovations to additions and new home construction.​



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!"



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

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