Concrete Repair

Diagnosed, specified and delivered by one specialist team. Reactive, planned or programmed

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Service Overview

Concrete fails for a reason. Reinforcement corrodes, carbonation reaches the steel, chlorides penetrate the cover, or the structure was built with a defect that has finally surfaced. The visible damage is a symptom. Spalling, cracking, delamination and staining are what the client sees; the cause sits beneath.

CRS delivers concrete repair across the full range of causes. Reactive works to make a spalling façade or a defective balcony safe. Planned repairs written against a survey and specification. Multi-phase programmes rolling out across housing estates, car parks and infrastructure assets. Small-scale patch repairs through to full-scale structural interventions.

We repair using approved systems from Sika, Weber and Mapei, matched to the defect, the exposure environment and the client’s required service life. Mortars are hand-placed or spray-applied depending on scale and access. Where reinforcement is corroded, the steel is cleaned or replaced before the concrete is reinstated. Where cover is inadequate, the repair is designed to extend it. Where the wider structure is at risk of continuing corrosion, protection systems are specified alongside the repair.

Every CRS concrete repair scheme is diagnosed before it is specified. We do not patch and walk away. The survey identifies what is failing and why, the specification addresses the cause, and the repair is delivered to last. Where clients want continuity, the same team returns for future inspections and maintenance cycles.

We work directly for asset owners, main contractors, consulting engineers and their representatives, across the UK.

What this service covers

Reinforcement Corrosion Repair

Removal of degraded concrete, treatment or replacement of corroded reinforcement, and reinstatement using approved repair mortars. The cause of corrosion is addressed alongside the repair.

Patch Repair & Full-Depth Repair

Localised patch repairs for isolated defects; full-depth reinstatement where cover is inadequate or damage extends through the section. Hand-applied or sprayed depending on scale and access.

Structural Crack Repair

Injection of resin or cementitious grout to seal cracks, restore structural continuity, and prevent water and contaminant ingress. Movement-active cracks are specified differently to dormant cracks.

Spalling & Delamination Repair

Systematic removal of loose and delaminated concrete, defect mapping, and structured reinstatement across affected areas. Common on balconies, façades, soffits and exposed elements.

Surface Preparation

Hydro-jetting, grit-blasting, mechanical scabbling and other preparation methods to achieve the substrate profile required by the specified repair system.

Protection & Anti-Carbonation

Application of anti-carbonation coatings, corrosion inhibitors and protective treatments to extend the service life of the repair and the surrounding concrete.

Why choose Concrete Repair Solutions?

Technical depth

Every repair is diagnosed before it is specified. We identify the cause of failure, whether corrosion, carbonation, chloride ingress or structural movement, so the repair addresses the problem rather than the symptom.

Whole life of the structure

CRS surveys, repairs, protects and maintains. The same team that specifies the repair delivers it, then returns for the next inspection cycle. Clients get one point of accountability across the service life of the asset.

Accredited and approved

SafeContractor accredited, with a CSCS-carded workforce and SSSTS-qualified site supervision. IRATA Level 3 rope access operatives for work at height. Independent external HSQE consultancy oversight of health, safety, quality and environmental management on every project.

Track record

Delivered across commercial property, housing associations, multi-storey car parks, bridges and industrial assets throughout the UK. Live projects viewable in the Projects section.

Our process

1. Survey & Diagnose

On-site inspection, defect mapping and targeted testing. We identify what is failing, why, and what needs to be addressed to prevent recurrence.

2. Specify & Cost

A written specification setting out the repair scope, materials, methodology and phasing. Costed against a defensible bill of quantities, ready for tender or direct appointment.

3. Mobilise & Deliver

Site setup, access provision, RAMS submission and works delivery. Progress reported at agreed intervals. Client kept informed throughout.

4. Protect & Hand Over

Final quality checks, protection systems applied where specified, and a handover pack covering the works completed, materials used, and recommended future inspection cycles.

Frequently asked questions

Concrete cancer is the common name for concrete deterioration caused by corroding reinforcement inside the structure. As the steel corrodes it expands, cracking and spalling the surrounding concrete. Repair involves removing the affected concrete, treating or replacing the reinforcement, reinstating with an approved repair mortar, and protecting the wider structure to prevent recurrence. CRS delivers this repair across residential, commercial and infrastructure assets throughout the UK.

RAAC, or reinforced autoclaved aerated concrete, is a different material to standard reinforced concrete and requires specialist assessment. In many cases affected panels can be temporarily made safe, propped, or replaced in phases rather than requiring full-scale removal. CRS delivers RAAC surveys, condition assessments and remediation works. The appropriate approach depends on the structure, its condition and its intended remaining service life.

We work across the major approved repair systems used in the UK, including Sika, Weber and Mapei. The system is selected to suit the structure, the defect type, the exposure environment and the client’s specification. Where a client or engineer has specified a particular system, we deliver to that specification.

Yes. A significant portion of our work is in residential and commercial buildings that remain occupied throughout, including housing association blocks, car parks in daily use, and live commercial premises. Programme, phasing, dust control, noise management and resident liaison are all planned into the delivery.

Yes. CRS can be appointed as Principal Contractor on schemes where required, with full CDM 2015 compliance. On smaller works where a different Principal Contractor is appointed, we work as their specialist sub-contractor and provide the technical documentation their PC role requires.

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