industrial industrial

Commercial and
Commercial and




RTSI, Quebec leader in metal siding

RTSI specializes in the installation of metal siding, panelling, and roofing for the commercial, institutional, industrial, and residential sectors.

With 45 years of experience, more than 15 teams of professionals using cutting-edge technology, and an impeccable work ethic, RTSI has built a solid reputation over the years for the quality of both its work and its service—with the company being highly sought after not only in the Eastern Townships, but throughout Quebec and Ontario.


The strength of experience

Our teams of experienced professionals have the expertise required to carry out the most complex and ambitious projects and to provide sound advice to our clients to ensure maximum value on their investments, while respecting their budget, deadlines, and quality.

Knowing ourselves

Our values

Our complete dedication to client satisfaction has been a key ingredient in the steady growth that we have experienced over the years and that we continue to enjoy. At all of our worksites, RTSI has become synonymous with integrity, reliability, and professionalism.

Knowing where to go

An innovative business

Always on the lookout for new products and innovative processes, RTSI was one of the first companies to introduce composite panels on the market and to develop expertise in their installation.

With a view to the future, RTSI annually invests in the development of its equipment and vehicle fleet to increase its autonomy and productivity, and today is one of the best equipped companies in Quebec.


Opening of the Gilles-Villeneuves circuit

RTSI is very proud of the accomplishment of its team in this project. More details