What We Do
Main Focus
Since 1969, Rosati Group has become one of the largest Design Build contractors/developers in Southwestern Ontario. We are uniquely positioned to ensure that your construction project will be a resounding success from concept to completion. We are accustomed to assisting our customers in the critical early stages of project development during which crucial schedule, quality and value decisions are made. Our company focuses on design, quality of materials, subcontractors and tight integration of these resources to create robust, service-free, award-winning buildings.
Core Services
Design-Build
General Contracting
Construction Management
Land Development
Butler Building Systems
Machine Foundations
Leasing
Rosati Difference
Customer Experiences
"We appreciate Rosati’s high professionalism in keeping to deadlines, keeping promises, and also being flexible. When you’re starting your process you see things that need to be done differently, and they quickly respond to any changes we require from them. They will try to accomplish everything to keep within the timelines and budget, and come up with solutions quickly for every challenge.."
Mariusz Olszowik
North America Operations Launch Manager
Customer Experiences
"This is our first time working with Rosati. With their strong LaSalle presence and their amazing reputation, we felt it was a great opportunity to work with them. We couldn't be more proud of the product they put out. This is different from our other properties; it's a new concept for us and definitely unique. Without a doubt we would work with Rosati again.."
Matt Komsa
Co-Owner
Customer Experiences
"Rosati was excellent to work with and, in partnership with ADA and WFCU, brought the project in on time and slightly below budget. WFCU would not hesitate to work with Rosati again under the proper set of circumstances, nor hesitate to recommend them to others. They made the entire project experience smooth and successful.."
Marty Komsa
President and CEO
Customer Experiences
"Our family-run business Manz Contracting is no stranger to the Rosati family. We are proud to have cultivated a long-lasting relationship with the Rosati’s, starting with founders Vince and Olivia nearly four decades ago. The key to success has always been to service your customers and build quality projects on time and within budget. This is why our family group at Lakeshore MedArts investigated several contractors. We feel we have picked the premiere local contracting firm in Rosati to build our facility, following the same tradition we will continue in our future business endeavors. It's actually been a lot of fun and it's been great to work with Rosati. They have always responded to everything we needed in a very timely fashion. Things can go south really quickly if you don't have the right people. We give kudos to the people at Rosati.."
Dave Batten
Co-Owner













