Capability · Endure
Repair and protect ageing concrete
We repair, strengthen and protect damaged concrete using systems from leading global manufacturers. The aim is a permanent repair that extends the life of the structure.
Stage 04 · Endure
Overview
What concrete restoration covers
Concrete damage always has a cause. Water gets in, reinforcement corrodes, loads change or the original work was poor. A surface patch that ignores the cause usually fails, and the damage returns.
We diagnose first, then design and carry out a lasting repair. Our specialist contractor partner brings a long record of building protection in the Gulf's demanding climate. That experience is relevant on the Kenyan coast, where salt air speeds up corrosion of reinforcement.
| Service | What it covers |
|---|---|
| 01Concrete protection | Repair and refurbishment of deteriorating concrete, with protective systems that extend its service life. |
| 02Crack injection | Structural and waterproofing injection that restores integrity and stops water getting in. |
| 03Structural strengthening | Carbon-fibre and other composite systems that increase load capacity. |
| 04Cathodic protection | Corrosion control for reinforced concrete and steel in bridges, steel-framed buildings, marine structures, storage facilities and pipelines. |
| 05Scanning, coring and cutting | Scanning to locate rebar, post-tension cables, conduits and services before drilling, cutting or coring, protecting the structure and reducing risk. |
Warning signs
When to call us in
Problems found early cost less to fix. These signs usually mean a structure needs a survey.
- Cracks in slabs, beams, columns or walls
- Spalling or flaking concrete
- Rust stains or exposed reinforcement
- Damp patches, leaks or white salt deposits
- Concrete that sounds hollow when tapped
- Sagging slabs or beams
Cutting concrete for access and repair
How a job runs
From survey to handover
Survey and diagnosis
We inspect the structure, scan and test the concrete where needed, and establish the cause of the damage.
Repair design and method statement
We set out the repair or strengthening design, the systems and the method, for your review and approval.
Safe access and site protection
We plan access, temporary propping where needed, and protection for occupants, traffic or operations nearby.
Execution with QA/QC
Crews prepare the concrete and apply each system to the manufacturer's requirements, with inspection at every hold point.
Testing, inspection and handover
We test and inspect the finished work, then hand over the records and guidance on future inspection.
Methods and standards
How we control quality
Where it applies
- Bridges
- Marine and waterfront structures
- Steel-framed buildings
- Ageing commercial and residential buildings
- Industrial plants
- Storage facilities
- Pipelines
- The cause of damage is established before any repair is specified
- Repair and protection systems from leading global manufacturers, applied to their requirements
- Scanning for rebar, post-tension cables, conduits and services before any drilling, cutting or coring
- Inspection and test plans with documented hold points
- HSE oversight under a Zero Harm commitment, including on operating sites
Partner experience
What our execution partners bring
- Our specialist contractor partner has a long record of building protection in the Gulf's demanding climate.
- Our partner's concrete repair and protection work uses systems from leading global manufacturers of repair mortars, protective coatings and specialist high-performance mortars.
- Our partner has delivered work on marine and waterfront structures, industrial plants and warehousing facilities.
- Our partner has worked on operating heavy-industry sites, where safety standards are strictest.
- Our partner works as a specialist subcontractor to leading international and regional contractors.
Experience of our execution partners, shown by type. Not StellarCosmic's own projects.
Concrete repair crew at work 
Port and marine structures need corrosion control
Sectors
Where we apply concrete restoration
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Housing
Apartment blocks and housing schemes, built to stay dry, sound and easy to maintain.
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Commercial and mixed-use
Offices, business centres, retail and mixed-use towers, delivered under one accountable contract.
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Transport
Airport terminals, roads and port structures, planned so that operations keep running.
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Infrastructure
Water, wastewater, roads and bridges, with design, management and long-term corrosion protection.
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Industrial
Warehouses, steel structures and industrial plants, delivered with a strict focus on safety.
FAQ
Questions clients ask
How do you find the cause of the damage?
We start with a visual survey, then scan and test where needed, for example to locate reinforcement or check how deep the damage goes. The findings shape the repair design. The level of testing depends on the structure, so we agree it with you after a first site visit.
Do you work on occupied buildings and live sites?
Often, yes. We plan access, noise, dust, propping and working hours with your team so operations can continue. Some repairs need an area closed for a time. We confirm what is possible after a site visit.
Can carbon-fibre strengthening avoid a rebuild?
It can. Carbon-fibre and other composite systems can increase the load capacity of beams, slabs and columns without major demolition. Whether it suits your structure depends on its condition and the loads involved, which an engineering assessment confirms.
Why does concrete on the coast deteriorate faster?
Salt air around Mombasa and along the coast carries chlorides into concrete. Over time they corrode the reinforcement, which expands and cracks the concrete around it. Cathodic protection and protective coatings can slow or stop this. The right approach depends on the structure and how far corrosion has gone.
Which standards do you work to?
We work to the standards and specification set for your project, and to the manufacturer's requirements for each repair system. We keep inspection and test records so you can see how the work complies. Tell us if your client, insurer or funder has specific requirements.
Other capabilities
The rest of the lifecycle
Design and engineering
Architectural and engineering design, feasibility studies, technical consultancy and BIM, with design-and-build and turnkey options.
Explore Design and engineeringProject and construction management
Programme and project management, site supervision, QA/QC, testing and commissioning, and FIDIC contract administration.
Explore Project and construction managementConstruction
Civil works for commercial, residential and industrial buildings, steel structures and fabrication, and interiors, fit-out and coatings.
Explore ConstructionWeatherproofing
Waterproofing membranes and coatings, roofing, EIFS/ETICS insulated facades, decking and flooring for commercial and residential buildings.
Explore Weatherproofing
Next step
Concerned about a concrete structure?
Send us photos and a short description, or request a site assessment. We will advise on the next step.