How This Comparison Works
Search for a concrete repair contractor or a structural waterproofing specialist in the UK and the same names come up again and again. Most of them do some combination of the same three things: repairing damaged concrete, keeping water out of structures, and injecting resin to seal cracks and stop leaks. Where they differ is in where they work, the type and size of project they usually take on, and the extra services they run alongside the core trades.
The ten companies below were shortlisted because they overlap closely with MPS Concrete Solutions in concrete repair, structural waterproofing and resin injection. Each profile is a neutral summary of the company's services, geography and typical projects, based on public information on its own website, checked in October 2026. We have not rated or ranked them, and the order is not a ranking. For current details, follow the link to each company's official website.
MPS Concrete Solutions
That's us
MPS Concrete Solutions
MPS Concrete Solutions specialises in concrete repair, resin injection and structural waterproofing for commercial, public-sector and infrastructure projects. With 25+ years of combined specialist experience, MPS works across London and the UK on both planned and reactive remedial works.
- Main services: concrete repair; resin injection and crack sealing; leak sealing; structural waterproofing including cavity drain, membranes, liquid waterproofing and external waterproofing; injection hose and penetration sealing; piling injection repair; car park repairs and deck waterproofing; industrial floor repair; anti-skid surfacing.
- Geography: based in Sandy, Bedfordshire; works across London, the South East, the East of England, the Midlands and nationwide.
- Typical projects: commercial buildings, basements, car parks, schools, leisure and public buildings, industrial floors and infrastructure, including AELTC Wimbledon Centre Court and the King's Cross regeneration scheme.
- Credentials: UKAS-accredited ISO 9001, 14001 and 45001; Constructionline Gold; Sika-approved contractor; operatives hold NVQs in resin and grout injection, with CSCS, SSSTS, SMSTS, PASMA, IPAF (3A & 3B) and confined-space training.
See our case studies, including Canary Wharf, Center Parcs and Bromley South Central, or read client reviews.
10 Specialist Concrete Repair & Waterproofing Contractors
Listed in no particular order. Each company's services, geography and project types are summarised from its own public information.
1.Cemplas Waterproofing & Concrete Repairs
- Main services
- Concrete repair and protection; structural waterproofing; resin bonding and injection; car park refurbishment; deck waterproofing; protective coatings; corrosion management.
- Geography
- UK-wide, with South, Midlands/North and Wales coverage.
- Typical projects
- Commercial buildings, car parks, public buildings, leisure/venues and structural refurbishment.
- Company facts
- Trading since 1969; head office in Coulsdon, Surrey. Published projects include the Swansgate Shopping Centre multi-storey car park and waterproofing repairs at the Royal Albert Hall.
Cemplas is a long-established specialist structural refurbishment contractor offering concrete repair, waterproofing, resin injection and protective systems. Its services overlap with MPS in both repair and waterproofing.
Visit official website →
2.Structural Renovations Ltd
- Main services
- Concrete repair and protection; resin injection; specialist coatings; structural strengthening; waterproofing; heritage and conservation repairs.
- Geography
- London and South East England.
- Typical projects
- Commercial and residential buildings, schools and universities, council assets, churches, heritage buildings and refurbishment projects.
- Company facts
- Established 1993; based in Slough. Lists ISO 9001, 14001 and 45001, Constructionline Gold, CHAS, SafeContractor and Concrete Repair Association membership. Published projects include the Hoover Building and the Barbican Estate.
Structural Renovations specialises in planned and reactive repair and refurbishment, with strong overlap in concrete repair, resin injection and protective coatings. Like MPS, it works in London and the South East.
Visit official website →
3.BOSA Contracts
- Main services
- Concrete repair and protection; surveys and investigations; resin injection; cathodic protection; carbon-fibre strengthening; structural waterproofing; leak sealing.
- Geography
- UK-wide.
- Typical projects
- Commercial and public-sector buildings, civil engineering structures, infrastructure, heritage assets and refurbishment projects.
- Company facts
- Trading since 1995; based in Hull. Published projects include Park Hill Flats in Sheffield and the Anlaby Road Flyover.
BOSA is a nationwide specialist repair and refurbishment contractor working as both a principal contractor and specialist subcontractor. Its concrete repair, structural waterproofing and resin injection services overlap directly with MPS.
Visit official website →
4.APA Concrete Repairs
- Main services
- Concrete repairs; resin injection; waterproofing; structural strengthening; cathodic protection; sprayed concrete; protective coatings; surveys and investigations; rope access.
- Geography
- UK-wide, with offices in the North and South.
- Typical projects
- Public and private buildings, car parks, highways, bridges and tunnels, rail, power, water, marine and MoD infrastructure.
- Company facts
- Head office in Bradford, with a southern office in Weybridge. Lists ISO 9001, 14001 and 45001, Constructionline Gold and Concrete Repair Association membership. Published projects include Uskmouth Power Station and Wellington Road Bridge, Stockport.
APA is a national multi-disciplined structural repair and refurbishment contractor. It overlaps with MPS on concrete repair, waterproofing and resin injection, while also operating heavily in larger infrastructure markets.
Visit official website →
5.Gunite Waterproofing
- Main services
- Structural waterproofing; basement and podium waterproofing; concrete repair; external refurbishment; protective coatings; structural strengthening; leak sealing.
- Geography
- London and UK-wide.
- Typical projects
- Commercial buildings, basements, podiums, facades, concrete structures and refurbishment projects.
- Company facts
- Trading since 1992; based in London (WC1). Published projects include 8–10 Grosvenor Gardens.
Gunite provides specialist waterproofing and structural repair services, with a strong London presence. It is particularly relevant where projects combine water ingress, concrete repair and external refurbishment.
Visit official website →
6.Vale CRW
- Main services
- Concrete repair; structural waterproofing and tanking; resin injection and leak sealing; structural repairs; resin coatings.
- Geography
- Based in South Wales and works nationwide across the UK.
- Typical projects
- Commercial and residential refurbishment, housing, structural repair and waterproofing projects.
- Company facts
- Incorporated 2019; based in Merthyr Tydfil. Published projects include emergency repairs to the Cardiff Airport control tower and the Cwmbran Shopping Centre car parks.
Vale CRW offers a very similar core combination of concrete repair, structural waterproofing and resin injection, making it a like-for-like alternative for many of the same enquiries.
Visit official website →
7.Sealability
- Main services
- Structural concrete repair; epoxy resin injection and crack repair; protective coatings; waterproofing and gas membranes; balcony refurbishment; carbon-fibre plate bonding.
- Geography
- Wales, South West, Midlands and South East England.
- Typical projects
- Industrial floors, commercial facilities, multi-storey car parks, civil structures, residential refurbishment and balconies.
- Company facts
- Established 1989; offices at Hirwaun (Wales and South West) and Nuneaton (Midlands and South East). Lists ISO 9001, 14001 and 45001, Constructionline, CHAS and SafeContractor.
Sealability combines concrete repair and coatings with waterproofing and wider building-maintenance services. It overlaps with MPS across commercial property, car parks and refurbishment work.
Visit official website →
8.Beton Bauen
- Main services
- Concrete and structural repair; structural waterproofing; leak sealing; crack and resin injection; grouting; surface preparation; strengthening and protection.
- Geography
- UK-wide, with a strong South Wales and South West presence.
- Typical projects
- Highways, road infrastructure, sea and flood defences, commercial property, public sector, utilities and industrial assets.
- Company facts
- Founded 2006; based in Caerphilly. Lists ISO 9001, 14001 and 45001 and SafeContractor.
Beton Bauen is a specialist concrete repair and structural waterproofing contractor with significant technical and infrastructure experience. It works on repair, leak sealing and injection-led projects.
Visit official website →
9.Churchill Specialist Contracting
- Main services
- Concrete repair and strengthening; structural waterproofing; leak sealing; resin injection; cathodic protection; specialist coatings and linings; specialist access.
- Geography
- UK-wide.
- Typical projects
- Public and private buildings, social housing, education, water assets, bridges, tanks, water towers and infrastructure.
- Company facts
- Incorporated 1994 as Churchill Steeplejacks; registered office in Nottingham. Also provides steeplejack, lightning protection and chimney services. Published projects include Penarth Pier sea wall repairs.
Churchill provides structural maintenance, concrete repair, waterproofing and injection leak sealing, often using specialist access. It overlaps with MPS on technically difficult repair and water-ingress projects.
Visit official website →
10.Concrete Renovations Ltd
- Main services
- Resin injection crack repair; concrete repair; structural repair; crack sealing; waterproofing of concrete, stone and masonry; joint and defect repair.
- Geography
- UK.
- Typical projects
- Concrete, masonry and structural repair projects where cracking, water ingress or structural integrity require remedial treatment.
- Company facts
- Established 1984; based in Peterborough. Published projects include the Cripps Building at St John's College, Cambridge, and Southwark Cathedral.
Concrete Renovations is closely associated with resin injection and crack repair. Its positioning overlaps with MPS where structural cracking and water ingress are the primary problems.
Visit official website →
Services at a Glance
Which core services each company lists, based on the profiles above. A blank cell means the service is not in our summary of that company's offer, not that the company does not provide it. Check with the contractor directly.
How to Choose a Concrete Repair or Waterproofing Contractor
Every company on this page can be the right choice for the right project. The useful question is not "who is biggest?" but "who is set up for this defect, on this building, within this programme?" These are the questions we suggest asking any contractor, including us.
1. Do they diagnose before they price?
Spalling, cracking and water ingress each have more than one cause. A contractor who quotes from photos is guessing at the scope. Ask for a survey and a written method: what is causing the defect, what will be removed, what will be installed and to which standard (BS EN 1504 for repair, BS 8102 for below-ground waterproofing).
2. Do their own operatives carry out the specialist work?
Resin injection, leak sealing and membrane detailing depend on the person holding the gun. Ask whether the work is self-delivered or subcontracted, and what training the operatives hold. At MPS, our operatives hold NVQs in resin and grout injection.
3. Are the systems manufacturer-approved and guaranteed?
Repair mortars, injection resins and waterproofing membranes are only guaranteed when installed by an approved applicator to the manufacturer's specification. MPS is a Sika-approved contractor and works with manufacturer-backed systems.
4. Can they prove quality, safety and environmental management?
For commercial and public-sector work, look for third-party certification rather than statements. MPS holds UKAS-accredited ISO 9001, ISO 14001 and ISO 45001, and is a Constructionline Gold member.
5. Can they work around your building?
Most remedial work happens in occupied buildings, live car parks or operational sites. Ask how access, noise, dust, phasing and out-of-hours working will be handled, and how quickly they can mobilise for reactive or emergency repairs.
6. Is the price itemised?
An itemised quotation lets you compare like with like across contractors. Our concrete repair cost guide and waterproofing cost guide give indicative UK rates to benchmark against.
Getting several quotes? Send every contractor the same brief: the defect, its location and extent, photos, access constraints and your programme. You will get prices you can actually compare.
Frequently Asked Questions
Who are the main specialist concrete repair and waterproofing contractors in the UK?
Specialist UK contractors working across concrete repair, structural waterproofing and resin injection include MPS Concrete Solutions, Cemplas, Structural Renovations, BOSA Contracts, APA Concrete Repairs, Gunite Waterproofing, Vale CRW, Sealability, Beton Bauen, Churchill Specialist Contracting and Concrete Renovations. They differ mainly in geography, the project types they focus on, and secondary services such as cathodic protection, strengthening or rope access.
How do I choose a concrete repair or structural waterproofing contractor?
Start with the defect, not the contractor: spalling, cracking and water ingress need different methods. Then check that the contractor carries out that method with its own trained operatives, holds relevant accreditations such as ISO 9001, 14001 and 45001 and Constructionline, uses manufacturer-approved repair and waterproofing systems with guarantees, surveys before quoting, and can work around your access constraints and programme.
What is the difference between concrete repair and structural waterproofing?
Concrete repair reinstates damaged concrete: breaking out spalled or delaminated areas, treating corroded reinforcement and rebuilding the section to BS EN 1504. Structural waterproofing keeps water out of a structure, through membranes, cavity drain systems, injection hoses or resin injection of cracks and joints, to the grades set out in BS 8102. Many defects need both, which is why most specialists offer the two together. Our waterproofing and damp-proofing guide explains the options.
Does MPS Concrete Solutions work outside London?
Yes. MPS Concrete Solutions is based in Sandy, Bedfordshire, and works across London, the South East, the East of England, the Midlands and the rest of the UK on both planned and reactive remedial works.
