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Case Studies 19th June 2026

Bristol City Hall: Entrance Ramp Repairs and Waterproofing

We repaired and waterproofed the entrance ramps at Bristol City Hall for Bristol City Council, stopping water ingress to the plant rooms below.

City Hall - Bristol, Bristol - civil engineering and groundworks by EJ McGrath Case Studies

We’ve completed the repair and waterproofing of the entrance ramps at Bristol City Hall, the prominent civic building on College Green, for Bristol City Council.

The plant rooms beneath the entrance ramps had been suffering from extensive water ingress, and the leaks needed dealing with at source. That meant carefully lifting the natural stone flags off the ramps, getting down to the structure and putting it right before anything went back.

What we delivered

We carried out extensive concrete repairs across the ramp deck and installed a new waterproof deck, making the structure watertight and protecting the plant rooms below for the long term. With the ramps sound and sealed, we relaid the feature flagstones, a mix of original stone carefully reclaimed and newly fabricated pieces to match, finishing the surface with Tarmac ULTICOLOUR  to the scheme’s specification.

The result is a restored, watertight entrance that looks right for the building and keeps the spaces beneath it dry. It brings together below-the-surface concrete repair and waterproofing with careful, heritage-sensitive stone finishing on top.

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