Road Subsidence

Re-levelling for Road, Carriageway & Slab Subsidence Repair

Stabilise and re-level settled concrete carriageway slabs in single night possessions, avoiding full slab replacement.

Free Quote How it works

What we deliver

Designed to DMRB specification with calculations issued for asset-owner approval.
Re-support and re-level in one operation, no separate grout injection step.
Carriageway back in service before the morning peak.
Significantly lower embodied carbon than full slab replacement, with no landfill of broken concrete.

How it compares

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

DMRB / Specification for Highway Works (SHW)

Riding quality and surface regularity per scheme classification

Method	Out of service	Traffic management	Invasiveness	Addresses void	Longevity	Relative cost
Polyurethane resin injection Recommended	Within maintenance window	Required	Low	Yes	25+ years	Baseline
Full slab reconstruction	6–12 weeks	Required	High	Yes	25–40 years	Much higher
Asphalt overlay	1–2 days	Required	Medium	No	8–15 years	Higher
Cold-mix patching	Hours	Required	Low	No	2–4 years	Lower

Polyurethane resin injection

Recommended

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

Full slab reconstruction

Out of service: 6–12 weeks
Traffic mgmt: Required
Invasiveness: High
Addresses void: Yes
Longevity: 25–40 years
Relative cost: Much higher

Asphalt overlay

Out of service: 1–2 days
Traffic mgmt: Required
Invasiveness: Medium
Addresses void: No
Longevity: 8–15 years
Relative cost: Higher

Cold-mix patching

Out of service: Hours
Traffic mgmt: Required
Invasiveness: Low
Addresses void: No
Longevity: 2–4 years
Relative cost: Lower

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 road subsidence?

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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.

Other civil services

Airports & Runways

Bridges

Harbours & Seawalls

Rail

Utilities

View all civil services

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