BROMLEY SOUTH CENTRAL

Project Summary

Bromley South Central, a multi-level car park in a busy commercial setting, was experiencing joint deterioration and localised concrete defects. The client required urgent works to reinstate watertight expansion joints and carry out isolated patch repairs, all while keeping the site operational.

The MPS Solution

MPS Concrete Solutions installed a robust new expansion joint system tailored for long-term movement and traffic loading. Our team also completed breakout and reinstatement works to defective concrete areas, applying protective finishes where needed. All works were phased for minimal disruption and delivered under tight programme constraints.

How Joint Replacement on a Live Car Park Works

Expansion joints on a multi-storey deck take the thermal and structural movement between slabs, and they carry wheel loads at the same time. When the seal fails, chloride-laden water runs through the joint onto the slab edges and soffit below. That is why failed joints usually come with the kind of localised concrete defects found here.

On an operating car park the work is phased bay by bay or level by level, with the working area coned off and the rest of the deck kept in use. The old joint and any unsound concrete at the arrisses are broken out. The nosings are then rebuilt with repair mortar, and the new traffic-rated joint is installed and sealed so it can move without losing its seal. Patch repairs follow the same principles as our structural work: break out to sound concrete, treat any exposed reinforcement, and reinstate to BS EN 1504-3.

For the wider scope of deck work, from coatings to drainage, see our car park resurfacing in London page. For a podium deck and soffit remediation carried out above occupied areas, see Sterling Court.

Reviewed by Jerry Blears, Director (LinkedIn), MPS Concrete Solutions. Last reviewed September 2026.