30/10/2026
Out on the water: TRG’s grouting team have sealed several leaks along the Grand Union canal and prevented further flooding of residential properties. Several leak paths were identified using thermal probing and visual inspections at both ends of the leaks. Once we’d marked out where these were, we could then inject PU grout with lances to seal the complete path. The PU grout expands into all voids along its path, sealing as it goes. This method has minimal impact but maximum effect.