Structural Repairs

Structural Repairs & Water Proofing

OnSite Specialist Maintenance (OSM) provides innovation through specialist construction – it is one of the UK’s leading concrete repair and specialist leak sealing contractors. Formed in 1992, and with over 20 years of experience, OSM has grown core activities into wider areas of building refurbishment and structural repairs. These areas include: concrete repairs, waterproof, ground stabilisation, void filling, coatings and relining..

Coatings - Waterproofing - Void Filling - Shot Blasting


The business has grown steadily year on year, retaining and expanding its client base across thousands of customers.


Concrete: repairs, sealants, floor coatings and testing


Waterproofing: structures, tanking, bridge decks and leak sealing


Stabilisation: void filling, floor and slab lifting, improved ground bearing capacity


Structural Repairs: brickwork repair, grit blasting, resin coating, specialist pipe wrapping and resin injection