Professional Damp Proofing & Waterproofing Solutions for Residential, Commercial & Industrial Properties
Damp is one of the most destructive and costly problems affecting South African properties. In Gauteng's climate — with heavy summer rainfall, humidity, and temperature extremes — moisture forces its way through walls, floors, and foundations, causing peeling paint, mould growth, crumbling plaster, and serious structural damage. Left untreated, damp compromises the integrity of your building and the health of everyone inside it.
At RR Roof Waterproofing, we are Gauteng's trusted specialists in professional damp proofing, rising damp treatment, lateral damp waterproofing, and penetrating damp repair. We don't apply temporary surface fixes — we eliminate damp at its source using industry-leading systems including Aquagard Chemical DPC Injection, Dampblok Cementitious Waterproof Coatings, and Plaster Plus Waterproof Plaster Systems that deliver permanent, long-lasting results.
Whether you're a homeowner in Centurion, a property manager in Sandton, or a facility operator in the East Rand, our certified team provides damp proofing solutions tailored to your specific problem, structure, and budget.
5 Key Benefits of Professional
Damp Proofing
Eliminates Damp at the Source
We don't apply surface coatings over existing damp — we remove contaminated plaster, treat the masonry at the source, and rebuild with permanent waterproof systems that stop moisture from returning.
Aquagard Chemical DPC Injection
Our chemical damp proof course uses Aquagard silicone cream injected directly into the masonry to create a permanent moisture barrier — the industry-standard solution for rising damp treatment.
Dampblok Waterproof Coatings
Dampblok cementitious waterproof coatings form a tough, breathable barrier that resists hydrostatic pressure and prevents moisture penetration through walls, basements, and below-ground structures.
Prevents Mould & Health Risks
Chronic damp creates mould colonies that produce harmful spores, degrade air quality, and trigger respiratory problems. Eliminating moisture eliminates the conditions mould needs to survive.
Protects Property Value
Damp damage drives down property values, deters buyers, and alerts building inspectors. A professionally treated and certified damp-free property is a significantly more attractive and valuable asset.
Damp Proofing for Every
Property Type
Residential Damp Proofing
Your home should be a safe, dry, and healthy space. Damp walls harbour dangerous mould, deteriorate structural plaster, and drive down property value. We diagnose the exact source, remove contaminated plaster, install a chemical DPC, and rebuild with waterproof coating and render systems.
We work with minimal disruption and ensure all rubble is removed and the site is left clean and tidy on completion.
Commercial Damp Proofing
Damp in a commercial building is a liability — it creates unhealthy environments, damages stock and equipment, and signals poor property management. Our commercial damp proofing is engineered for scale, speed, and minimal business disruption.
We assess the full scope of moisture ingress, develop a targeted treatment plan, and execute using professional-grade systems that address the problem permanently.
Industrial Damp Proofing
Industrial structures face relentless environmental punishment. Warehouse walls absorb ground moisture, factory walls crack under lateral water pressure, and large facilities develop chronic damp that damages stock, corrodes equipment, and compromises structural integrity.
We use high-performance multi-coat Dampblok systems and heavy-duty waterproof render, scaled for large surfaces and high hydrostatic pressure environments.
Our Damp Proofing Process
Effective damp proofing is built on accurate diagnosis and thorough treatment. We never apply surface fixes over existing damp — every job starts at the source and works outward to a finished, lasting result.
Moisture Assessment & Diagnosis
We identify the exact type and source of damp — rising, penetrating, or lateral — before recommending any treatment. The correct diagnosis determines the correct solution.
Remove Contaminated Plaster
All affected plaster is hacked off to expose the masonry. This is non-negotiable — applying new coatings over contaminated plaster guarantees failure within months.
Chemical DPC Injection
Aquagard silicone cream is injected at regular intervals into the base of the affected wall, creating a permanent hydrophobic barrier that blocks capillary moisture movement.
Dampblok Waterproof Coating
A multi-coat Dampblok cementitious waterproof coating is applied to the bare masonry to seal the surface against residual and future moisture penetration and hydrostatic pressure.
Waterproof Plaster Render
Plaster Plus waterproof render is applied over the treated wall to provide a clean, smooth, moisture-resistant substrate that is ready for painting and finishing.
Final Inspection & Handover
We inspect the completed work with you, confirm the treatment is fully installed, and provide recommendations for ongoing maintenance and monitoring of the treated areas.
Rising, Penetrating & Lateral Damp —
We Diagnose & Treat All Three
Understanding your damp problem is the first step to fixing it permanently. Each type of damp requires a different treatment approach — applying the wrong solution wastes time and money.
Groundwater travels upward through walls via capillary action when a damp proof course is absent, damaged, or bridged. It typically appears as a tide mark on lower walls, with efflorescence (white salt deposits), peeling paint, and deteriorating plaster. We treat rising damp with Aquagard Chemical DPC Injection — a proven system that creates a permanent silicone moisture barrier within the masonry.
Rain and surface water penetrate external walls through cracks, porous brickwork, or failed plaster. It often appears as damp patches that worsen after rainfall. We treat penetrating damp with Dampblok waterproof coatings and waterproof plaster render systems that seal the wall while still allowing it to breathe.
Water under pressure from surrounding soil pushes directly through below-ground or partially buried walls. This is one of the most aggressive forms of damp and requires a robust multi-coat cementitious waterproofing system to resist hydrostatic pressure and prevent moisture ingress permanently.
Permanent Damp Solutions,
Backed by Expertise
At RR Roof Waterproofing, we combine technical expertise, premium materials, and professional workmanship to deliver damp proofing results that last. We don't cut corners, oversell unnecessary work, or apply cosmetic fixes that fail within a season. Every job is assessed individually, treated thoroughly, and finished to a high standard.
"RR Waterproofing did a Fantastic Job. It did take a bit of time to get completed, but unfortunately we cant Control the weather.. However, RR Waterproofing made extreme Effort to Get the Job Done efficiently and effectively. Definitely Recommend them."
Frequently Asked Questions About Damp Proofing
Rising damp travels upward through walls via capillary action when a DPC is absent or damaged — typically visible as tide marks and efflorescence on lower walls. Penetrating damp enters through external walls via cracks or porous brickwork after rainfall. Lateral damp is groundwater under pressure pushing through below-ground or partially buried walls. Each requires a different treatment — we diagnose the type first before recommending any solution.
No. Applying waterproof coatings over existing contaminated paint or plaster is a surface fix that fails quickly — it's why many homeowners have the same damp problem return within months of treatment by other contractors. Our process always starts with removing all affected plaster to expose the masonry, treating the source, then rebuilding with a Dampblok waterproof coating and Plaster Plus render system.
Aquagard Chemical DPC Injection using silicone cream technology creates a permanent moisture barrier within the masonry. When correctly installed at the right height and spacing, a chemical DPC lasts the lifetime of the building — it is not a temporary or maintenance treatment. It is the same technology used by waterproofing engineers on new builds and major commercial refurbishments.
Yes. We provide commercial damp proofing for office parks, retail spaces, schools, clinics, hotels, and institutional buildings across Gauteng. Commercial projects are scoped and scheduled around your business operations — including weekends and after hours — to minimise disruption. We provide a full written scope of works and itemised quote before any work begins.
We serve Centurion, Pretoria, Pretoria East, Johannesburg North and South, Midrand, Sandton, Fourways, Randburg, Roodepoort, East Rand (Boksburg, Benoni, Germiston) and West Rand (Krugersdorp, Roodepoort). Free on-site damp assessments are available across all service areas — contact us and we will respond within 2 hours on business days.