
DWS leads the pack.
A stellar reputation for quality and efficiency.
Our work:
DWS provides roofing and waterproofing services for commercial, industrial, multi-residential, and institutional buildings. We work with roofs and builds of all sizes.
Our foremen are renowned for their expertise and customer service; our company has built a stellar reputation for our quality and efficiency. We pride ourselves on swift project completions without compromising on quality and safety.
Our scope:
In our 20th year of business, DWS has a number of experienced teams of commercial roofers that can provide excellent roofing and waterproofing services throughout Eastern Ontario including Ottawa, Cornwall, Brockville, Perth, Pembroke, Trenton, and Peterborough. We are happy to provide estimates on work farther from home and have provided services from Manitoba all the way to Haiti.
Our story:
DWS Roofing and Waterproofing Services, Inc. opened its doors in February of 2000. We began with a small team and crew, and tripled in size by the end of our first year. The company has expanded each year since its inception, and is now one of the best-reputed commercial roofing companies in the Ottawa Valley.
DWS began with a mission to provide superior service to our clients and an undeniably excellent finished product. We have stayed true to this mission for two decades.

Over 300 years of commercial roofing experience on our leadership team, here for you.
Cody Stalker, President
Cody brings over 15 years of expertise to the commercial flat roofing industry, leading with skill and a hands-on approach. As the driving force behind the company's field operations, Cody oversees every aspect of the team's work on-site, ensuring quality and precision on every job. His deep industry knowledge and commitment to high standards make him an invaluable leader, trusted by clients and colleagues alike. Cody’s strategic insight and dedication to excellence not only shape daily operations but also reinforce the company's reputation for delivering exceptional results in the commercial roofing sector.
Carson Stalker, Chief Executive Officer
Carson Stalker drives the company's business operations and fosters strong client relationships, ensuring a seamless and professional experience at every level. With a keen eye for efficiency and quality, Carson oversees the estimators and project managers, guiding the team to uphold the highest standards on every project. Known for his innovative vision, he brings tech-forward solutions that elevate the company’s service and streamline client interactions. Carson’s leadership is instrumental in positioning DWS as a trusted, top-tier provider in the commercial roofing industry.
Adam Zullo
plays a crucial role in overseeing the company’s financial health and strategic growth. Responsible for managing budgets, financial planning, and risk assessment, Adam ensures that all financial operations are aligned with the company's goals and long-term vision. His commitment to fiscal responsibility and strategic foresight is essential in sustaining DWS's stability and success in the competitive roofing industry.
Ryan Rafter, Field Supervisor
Having joined DWS in 2008, Ryan has grown in the company moving from roofer to foreman and is now our field supervisor. Ryan oversees daily field activities on our work sites, and facilitates all phases of projects acting as the direct link between field workers, sub-contractors, consultants, and our project management team.
Nick Sauter, Estimator & PM
Nick joined DWS in 2018 with a decade of experience behind him. Nick is an exceptional project manager, working closely with the teams on his roofs, ensuring a seamless customer experience and the best installation around. His well-rounded experience makes him an asset to any project.
Bhupendra Patel, Estimator & PM, P. Eng
Bhupendra comes to DWS with a degree in civil engineering. He has worked in construction as an estimator and project manager in Ottawa, and as a structural engineer overseas. Our newest addition, Bhupendra brings his wealth of knowledge and his committed pass for a job well done.

Our team is the best. Period.
Roofing Foremen and Trades Specialists
Our team exemplifies the finest and most skilled commercial roofing experts in the industry. No matter who is assigned to your project, our foremen will ensure your project is completed in a timely, efficient manner with superior quality and workmanship. As DWS is ever-expanding, so is our team of tradesmen — and we accept only the best for our team.