Relining Technology

Relining watermains allows us to rehabilitate aging pipes, while minimizing service interruption and nuisance to residents. Instead of digging up the road, we excavate ‘pits’ to access the main and work from there. The relining process involves cleaning the inside of the mains and slipping in a felt liner, coated with a resin that then hardens.

Through the construction phase, Utilities Kingston staff works with the relining contractor to resolve issues due to unanticipated underground and site conditions, and with residents to address their concerns in order to alleviate any issues as quickly as possible.

On top of being less disruptive, the low-dig cured-in-place-pipe (CIPP) lining technology reduces the road base and asphalt replacement costs when compared to conventional methods, and results in a joint-less, replacement pipe located inside the existing pipe.

Scope of Work

The watermains in the relining program are selected by reviewing priority areas based on watermain breaks and coordinating with the City of Kingston Capital Reconstruction Program.

Completed Work Areas 2025

The 2025 Watermain Relining Program was awarded to Fer-Pal Construction Ltd.  Work was initiated in the Spring of 2025 and over the course of the construction seasons, 2,873 meters of watermain were lined and the work under this contract is complete.

• Collins Bay Road: Aylmer Cres. to Safari Drive  
• Robert Wallace Drive: Queen Mary Rd. to Johnson Street
• Mackenzie Crescent
• Strachan Avenue
• Miles Avenue
• Liddell Crescent
• Wallace Place
• Ross Street
• Braemar Road
• Cairn Grove

Did you know?

Underground infrastructure can be replaced using a number of methods, often divided into two major areas: conventional open cut and the less disruptive and potentially more cost-effective trenchless (or low/no dig) technologies. In addition to water main relining, Utilities Kingston also uses a pipe bursting technology - a trenchless technology that allows a new larger pipe to be installed within an old pipe, while bursting the latter.