Engineering
We supply certified construction materials, structural protection products, and specialized building chemicals. Delivering directly to contractors, engineers, and building sites across Kenya.
Construction Materials.
Ready For Site.
Direct supply for builders and contractors across Kenya. Certified building chemicals, protective membranes, sealants, and site supplies ready for dispatch.
Bituminous Waterproofing Membrane APP (4mm)
Heavy-duty 4mm polyester-reinforced torch-on sheet for flat concrete roofs and foundation slabs.
Bitumen Penetration Primer D41 (20L)
Fast-drying solvent-based primer to seal porous concrete and guarantee permanent membrane adhesion.
Polyurethane Joint Sealant (600ml Sausage)
High-movement architectural polyurethane sealant for concrete expansion joints and parapet reglets.
Hydrophilic Swelling Waterstop Bar (20x10mm)
Sodium bentonite hydrophilic rubber strip that expands 300% to seal cold concrete construction joints.
Crystalline Waterproofing Slurry (25kg Bag)
Capillary crystalline coating that deeply penetrates concrete pores to permanently block water ingress under pressure.
Liquid Polyurethane Waterproofing Membrane (20kg)
Cold liquid-applied elastomeric polyurethane coating forming a seamless jointless rubber skin on roofs and balconies.
Self-Adhesive Bituminous Flashing Tape (10m x 150mm)
Heavy-duty aluminum-backed bitumen tape for instant watertight sealing on parapets, flashings, and pipe penetrations.
High-Strength Non-Shrink Structural Grout (25kg Bag)
Ready-to-use high-flow non-shrink cementitious grout for structural baseplates, anchor pockets, and precast joints.
Need Bulk Quantities or Site Inspection?
Speak directly with our technical team for custom project quotes, square-meter calculations, and same-day delivery.
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Engineered Waterproofing & Structural Envelopes
From foundation rafts and flat roofs to expansion joints and concrete additives, we supply tested building materials engineered for durability on your site.
Foundation & Basement Waterproofing
Heavy-dutyHeavy-dutytorch-ontorch-onbitumenbitumenmembranes,membranes,dimpleddimpleddrainagedrainagesheets,sheets,andandprotectionprotectionboardsboardsdesigneddesignedforforfoundationfoundationrafts,rafts,retainingretainingwalls,walls,andandundergroundundergroundstructures.structures.
Pressure Resistance
Over 10.5 Bar (Deep Basements)
Membrane Thickness
4.0mm Heavy-Duty Sheet
Drainage Core
Dimpled HDPE + Geotextile
Quality Grade
Certified DIN / BS Standard
Heavy-duty torch-on membrane and dimpled drainage sheet shielding concrete basement walls from underground water pressure.
Flat Roofs & Parapet Protection
UV-reflectiveUV-reflectivemineralmineralslateslatemembranesmembranesandandseamlessseamlessliquidliquidcoatingscoatingsthatthatprotectprotectflatflatconcreteconcreteroofs,roofs,gutters,gutters,andandparapetparapetwallswallsfromfromtropicaltropicalsunsunandandheavyheavyrain.rain.
UV Resistance
Mineral Slate Slate Coating
Elongation Capacity
>450% Flexibility
Weather Durability
25+ Year Service Life
Rain Resistance
100% Watertight Bond
Torched mineral cap sheet protecting concrete roofs and balconies from harsh tropical UV sunlight and heavy downpours.
Water Reservoirs & Wet Areas
Potable-certifiedPotable-certifiedcrystallinecrystallineslurriesslurriesandandflexibleflexiblecementitiouscementitiouscoatingscoatingsdesigneddesignedforfordomesticdomesticwaterwatertanks,tanks,pools,pools,andandsewagesewagetreatmenttreatmentplants.plants.
Water Safety
Safe for Drinking Water
Crack Self-Healing
Seals Pores up to 0.4mm
Pressure Tolerance
Resists Over 12 Bar Pressure
Bond Strength
Penetrates Deep into Concrete
Deep-penetrating concrete treatment for underground reservoirs, storage tanks, and swimming pools. 100% safe for drinking water.
Joint Sealants & Movement Systems
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Movement Rating
Accommodates ±25% Expansion
Swelling Ratio
Bentonite Expands over 300%
Tensile Strength
High Tear & Shear Resistance
Weather Durability
Unchanged by Heat or Cold
Elastic polyurethane seal and internal waterstops that allow buildings and slabs to expand and contract without cracking or letting in water.
Proven Materials. Measurable Reliability.
Compare Solphem engineered materials against ordinary commodity options commonly found on Kenyan construction sites.
Years of Experience
Projects Supplied
Products in Stock
Counties in Kenya
Certified Durability & Analytics
Dynamic laboratory test curves and 1,200+ site installations across Kenya. Graphs dynamically initialize upon scroll.
Water Resistance Lifecycle (25 Yrs)
Material Application Share
Standard Market Materials vs. Solphem Certified Supplies
| Physical Parameter | Standard Market Materials | Solphem Certified | Test Standard |
|---|---|---|---|
| Tensile & Tear Strength | 350 - 450 N/50mm (Prone to tearing on site) | 850 - 1100 N/50mm (Heavy-duty reinforcement) | ASTM D5147 |
| Flexibility & Elongation | 15% - 30% (Cracks during building movement) | >450% Elastic recovery without tearing | EN 12311-1 |
| Water Pressure Resistance | Low pressure tolerance (Fails under heavy water) | 10.5+ Bar High-pressure barrier | DIN 18195-4 |
| Weather & Sun Protection | Dries and cracks within 2 to 3 years | Natural mineral finish + UV protection (25+ yrs) | ASTM G154 |
Find The Right Materials For Your Job.
Select your project type and site needs to get direct material recommendations and supply estimates.
What type of structure are you protecting?
15+ Years Of Reliable Supply.
From our beginnings in Nairobi to serving builders and contractors nationwide.
Company Founded in Nairobi
Solphem began operations to supply builders and contractors with dependable, high-grade construction materials.
Countrywide Supply Network
Expanded delivery channels across Nairobi, Mombasa, the Rift Valley, and Western Kenya.
Direct Factory Partnerships
Partnered with certified international manufacturers to supply tested ASTM, DIN, and KEBS-compliant building products.
Fast Site Delivery & Support
Introduced same-day dispatch, direct WhatsApp order assistance, and coverage across all 47 counties.
Trusted Construction Partner
Supplying top-tier structural protection, building chemicals, and construction materials for ongoing developments across East Africa.
What Builders Say About Us.
Trusted by contractors, site engineers, and property developers across Kenya.
“Solphem's 4mm torch-on membranes are dependable and straightforward to install on site. We specified them on our commercial basement in Nairobi and had zero leaks through heavy rains.”
Eng. John Kamau
Principal Structural Consultant, BuildIt Kenya · Nairobi CBD
“The mineral slate membranes and roof coatings we ordered arrived right on schedule. Reliable technical support and genuine materials that meet project standards without hassle.”
Arch. Sarah Wanjiku
Lead Architect, ArchiTech Studio · Westlands, Nairobi
“Prompt delivery down to Mombasa. Their crystalline concrete additives and swelling waterstop strips gave us completely watertight underground water storage reservoirs.”
Michael Otieno
Site Project Manager, Coastal Contractors · Mombasa & Kilifi
“Excellent consistency on the polyurethane expansion joint sealants and primer drums. Their logistics team handled delivery directly to our highway overpass site on time.”
David Kiprop
Civil Works Contractor, Rift Valley Engineering · Nakuru & Eldoret
“We ordered torch-on rolls, bitumen primer, and drainage boards for a 48-unit residential apartment development. Every roll passed site quality checks with flying colors.”
Samuel Mwangi
Managing Director, Apex Residential · Kiambu County
“Solphem's 4mm torch-on membranes are dependable and straightforward to install on site. We specified them on our commercial basement in Nairobi and had zero leaks through heavy rains.”
Eng. John Kamau
Principal Structural Consultant, BuildIt Kenya · Nairobi CBD
“The mineral slate membranes and roof coatings we ordered arrived right on schedule. Reliable technical support and genuine materials that meet project standards without hassle.”
Arch. Sarah Wanjiku
Lead Architect, ArchiTech Studio · Westlands, Nairobi
“Prompt delivery down to Mombasa. Their crystalline concrete additives and swelling waterstop strips gave us completely watertight underground water storage reservoirs.”
Michael Otieno
Site Project Manager, Coastal Contractors · Mombasa & Kilifi
“Excellent consistency on the polyurethane expansion joint sealants and primer drums. Their logistics team handled delivery directly to our highway overpass site on time.”
David Kiprop
Civil Works Contractor, Rift Valley Engineering · Nakuru & Eldoret
“We ordered torch-on rolls, bitumen primer, and drainage boards for a 48-unit residential apartment development. Every roll passed site quality checks with flying colors.”
Samuel Mwangi
Managing Director, Apex Residential · Kiambu County
Practical Site Guides.
Material selection advice, application techniques, and site-tested best practices for contractors.
Get product pricing, material quantity estimates, and fast site delivery across all 47 counties in Kenya.