Harbour seawall under repair at low tide

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Civil sector

Harbour & Seawall Subsidence

Re-levelling for Harbour, Quayside & Seawall Subsidence Repair

Re-level port apron and quayside slabs that have settled under reach-stacker and container loading.

What we deliver

  • Heavy-load resin engineered for reach-stacker, straddle and crane wheel loading.

  • Hydrophobic, non-leaching resin approved for use near watercourses and marine environments.

  • Phased lifts maintain quayside operations and container handling.

  • Stops scour and washout under quay slabs caused by tidal action and surface drainage.

How it compares

Resin injection alongside the realistic alternatives you might be quoted for this job.

Polyurethane resin injection

Recommended
Out of service
Within operational window
Traffic mgmt
Required
Invasiveness
Low
Addresses void
Yes
Longevity
25+ years
Relative cost
Baseline

Full slab replacement

Out of service
8–16 weeks
Traffic mgmt
Required
Invasiveness
High
Addresses void
Yes
Longevity
25–40 years
Relative cost
Much higher

Cement grouting

Out of service
5–10 days
Traffic mgmt
Required
Invasiveness
Medium
Addresses void
Yes
Longevity
10–20 years
Relative cost
Similar

Marine epoxy repair

Out of service
3–5 days
Traffic mgmt
Required
Invasiveness
Medium
Addresses void
No
Longevity
8–15 years
Relative cost
Similar

Why this method works

Proven across hundreds of civil sites.

Short possession windows

Lifts completed within night possessions and short road closures, back in service before peak traffic.

Designed to specification

Schemes engineered to your spec, DMRB, Network Rail, CAA, with resin grade, density and lift profile signed off.

Permanent void filling

Resin penetrates and seals voids in the sub-base, stopping further migration and washout for good.

Lower carbon than replacement

A fraction of the embodied carbon of full slab replacement, and no landfill of broken concrete.

Worried about harbour & seawall subsidence?

Send us the site details and we'll come back with a free, written quote.

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Frequently asked questions

Yes, civil resin injection schemes are designed to DMRB, Network Rail and local authority specifications, with PTS-certified operatives on rail possessions where required.

Ready to lift your sunken concrete?

Get a free, no-obligation quote from a vetted UK specialist.

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