Capability · Endure
Keep the weather out of your building
Waterproofing, roofing, insulated facades, decking and flooring, chosen for Kenya's rains and sun. One contractor is accountable for the whole building envelope.
Stage 04 · Endure
Overview
What weatherproofing covers
Most leaks start at a detail. Water finds the weak point at a joint, upstand or penetration, then damages the structure, services and interiors. The long rains from March to May and the short rains from October to December test every roof and facade.
We cover waterproofing, roofing, facades, decking and flooring under one contract. Our specialist contractor partner brings a long record of building protection in the Gulf's demanding climate. We apply that experience to Kenyan buildings, using Kenyan labour wherever possible.
| Service | What it covers |
|---|---|
| 01Waterproofing membranes | PVC and FPO membrane systems for roofs and other exposed surfaces. |
| 02Coatings and injection | Polyurea, polyurethane and epoxy coatings, injection systems, mortars and renderings to seal structures against water. |
| 03Roofing | Roofing systems that protect from the elements and add thermal insulation. |
| 04Facades (EIFS/ETICS) | Exterior insulation and finishing systems for commercial and residential buildings. |
| 05Decking | Load-bearing outdoor decks and terraces. |
| 06Flooring | Residential and commercial flooring systems tailored to each client. |
Warning signs
When to call us in
Problems found early cost less to fix. These signs usually mean a structure needs a survey.
- Damp patches or stains on ceilings and walls
- Water pooling on flat roofs after rain
- Blistered, cracked or peeling membranes and coatings
- Rusting or loose roof sheets and fixings
- Cracked or debonded render on facades
- Mould or musty smells indoors
Roofing work on a pitched roof
How a job runs
From survey to handover
Survey and leak diagnosis
We inspect the roof, facade or deck, trace leaks to their source and check the condition of the substrate.
System selection and method statement
We recommend a system to suit the substrate, exposure and use, and set out the method and details for approval.
Surface preparation
Surfaces are cleaned, repaired and dried to the manufacturer's requirements before any product goes on.
Installation with QA/QC
Our crews install the system and its details, with inspection at each hold point and records of every stage.
Testing and handover
We test the finished work, for example by flood or spray testing where suitable, then hand over records and care guidance.
Methods and standards
How we control quality
Where it applies
- Flat and pitched roofs
- Outdoor decks and terraces
- Commercial and residential facades
- Basements and below-ground structures
- Wet areas
- Commercial and residential floors
- Warehouse and industrial roofs
- Systems from internationally recognised material suppliers, installed to their requirements
- Substrate checks for moisture and condition before application
- Inspection and test plans with documented hold points
- Water testing of completed areas where the system allows
- HSE oversight for work at height, guided by a Zero Harm commitment
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 provides a complete range of weatherproofing solutions, supporting building owners, architects, engineers, project managers and contractors.
- Our partner specialises in EIFS/ETICS insulated facades for commercial and residential buildings.
- Our partner has delivered work on large mixed-use, commercial and residential developments, retail destinations and university campus buildings.
- 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.
Scaffold access for facade systems 
Work under way on a large flat roof
Sectors
Where we apply weatherproofing
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Education
Campus buildings, libraries and teaching spaces, planned around the academic calendar.
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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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Hospitality
Hotels, resorts and venues, finished for guests and protected against sun, rain and salt air.
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Industrial
Warehouses, steel structures and industrial plants, delivered with a strict focus on safety.
FAQ
Questions clients ask
When is the best time to waterproof in Kenya?
In most regions, the drier months between the long rains (March to May) and the short rains (October to December) are best. Most systems need a dry surface and suitable weather to cure. If work has to run into the rains, we plan around the weather and protect work areas. A site visit lets us advise on timing for your building.
Can you find and fix an existing leak?
Yes. We trace the leak to its source before recommending a repair, because water often travels some distance from where it enters. Some leaks need a local repair, others a new system. We advise once we have inspected the area.
Do you work on occupied buildings?
Often, yes. Roof and facade work can usually be phased so the building stays in use. We plan access, safety zones, noise and working hours with your facility team, and confirm the approach after a site visit.
Which waterproofing system is right for my roof?
It depends on the substrate, how the roof is used, its exposure to sun and standing water, and access for maintenance. Options include PVC and FPO membranes and polyurea or polyurethane coatings. We recommend a system after inspecting the roof.
Can you improve a building's thermal performance?
Often, yes. Roofing and EIFS/ETICS facade systems can add insulation, which helps keep interiors cooler. What can be achieved depends on the existing structure, so we assess it first.
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 ConstructionConcrete restoration
Concrete repair and protection, crack injection, carbon-fibre strengthening, cathodic protection, and scanning, coring and cutting.
Explore Concrete restoration
Next step
Stop the leak at its source
Tell us about the roof, facade or floor, ideally before the next rains. We can arrange a site assessment to look at it.