Since its start in UV-cured lining rehabilitation, Excavation Lafontaine has completed many projects of which it is particularly proud.
“One of the most emblematic projects was the rehabilitation of potable water pipes inside the Concorde Bridge in Montréal,” says Mathieu Asselin, Excavation Lafontaine’s director of estimation and project management. “This project involved rehabilitating two 450 mm diameter potable water pipes over a length of 700 meters each. It was the first UV-cured lining rehabilitation project for potable water pipes in Canada. To ensure its success, close coordination was established with our liner supplier to consider all details that could influence work quality. In addition, training was completed in Germany, and the presence of a supplier technician was required on site during project startup.”
A second major project was the rehabilitation of storm and sanitary sewers located in the steep Cap-Blanc cliff in Québec City, which divides the lower town from the upper town.
“Access to the pipes was extremely difficult, and the work was carried out during winter conditions, with temperatures reaching negative 20 degrees C (negative 4 degrees F),” Asselin says. “The ingenuity and flexibility of our teams were essential in overcoming these constraints.”
Finally, Excavation Lafontaine also carried out several rehabilitation projects on large-diameter sanitary collectors for the City of Montréal. These projects involved multiple technical challenges, not only for UV lining, but also for associated civil works, pumping management and local traffic control.
“Lafontaine remains first and foremost a large-scale civil engineering company,” Asselin says. “We have a vast and diverse equipment fleet and personnel with extensive knowledge in multiple areas, including site management, technical support, mechanics and field execution. This combination of experience, versatility and technical expertise enables our teams to carry out work involving complex challenges and represents Excavation Lafontaine’s greatest strength.”
Read more about Excavation Lafontaine in the July 2026 issue of Cleaner magazine.
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