Municipal assets sealed, supported, and back in service.
Specialty Grouting Services stabilizes civil infrastructure across Ontario — manholes, chambers, vaults, watermains and sewers, treatment plant structures, and the ground that supports roads and public works. Municipalities and their consulting engineers bring us in when an asset is leaking, settling, or hollowing out underneath, and replacement isn’t in the budget or the schedule.
How does grouting extend the life of municipal infrastructure?
By fixing the two things that kill concrete assets early: water and voids. Injection grouting seals active infiltration in manholes, chambers, and tanks — cutting inflow and infiltration into sanitary systems — while void filling restores the ground support that erosion and washouts have removed. Structural form-and-pump repairs rebuild benching and deteriorated sections in place. See real examples in our case studies, including manhole leak repairs for the City of Waterloo.
What municipal structures do you work on?
Sanitary and storm manholes, valve chambers and vaults, wet wells, water and wastewater treatment tanks and reservoirs, culverts, and pipes — including abandonment of retired lines. Much of this is confined space work, and our crews are entry experts with the equipment to work in live structures.
How do municipalities engage SG Services?
However your procurement works: direct quotes for maintenance repairs, competitive bids, or as a specialty subcontractor under a general contractor or engineering assignment. Bill Lillico, our Manager of Technical Services, reviews specifications and RFPs directly — call 226-820-4233.
Frequently Asked Questions
Drilling to the leak paths, injecting water-activated polyurethane to cut off active inflows at pipe penetrations and cracks, then parging drill holes with hydraulic cement. Many single-structure repairs are completed in one mobilization.
Number of structures and leak points, inflow volumes, confined space entry requirements, traffic control, and travel distance. Photos and CCTV data help us quote accurately the first time.
Usually, yes. Injection and interior repairs are done from inside the structure or through small drill holes, which is exactly why municipalities choose grouting over excavation.
Yes. We document locations, materials, and volumes placed, and provide follow-up reports — the same reporting shown in our published case studies.
Municipalities across southwestern Ontario have trusted us with this work.
MunicipalSanitary Manhole Leak Repairs — City of WaterlooActive groundwater inflows through joints and pipe penetrations in three sanitary manholes sealed by polyurethane injection — without taking the sewer out of service.Read the case study
MunicipalSanitary Manhole Ladder & Landing Repairs — Township of Wellington NorthDeteriorated access ladders and landings in two deep sanitary manholes replaced by confined space entry, with the drop pipe secured — manholes safe to enter again.Read the case study
MunicipalManhole Leak Repairs — Tavistock Community CentreInfiltration through pipe penetrations in a precast manhole stopped with water-activated resin, keeping fines out of the sewer and the structure in service.Read the case studyExtend the Asset, Skip the Excavation
Send the inspection report or CCTV footage and we’ll scope the repair.