ResealCanberra delivers technical solutions for South African architecture — from foundation drainage and cavity wall moisture control to heritage roof preservation. Built for local climate conditions.
Request a Site AssessmentDrainage systems, membrane selection, and installation sequences for high-rainfall regions.
Slate and clay tile repair with modern sealants that preserve original character.
Breathable insulation and ventilation strategies for older masonry buildings.
Our work speaks through the projects we complete and the clients we serve.
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Years in business
“We hired ResealCanberra for foundation waterproofing on a 1920s house in Durban. The team identified drainage issues we hadn’t noticed and applied a membrane system that held up through two rainy seasons. No damp, no cracks.”
— Linda M.
Homeowner, Durban
“Their approach to heritage roof restoration was meticulous. They matched original clay tiles and used breathable underlayment to avoid trapping moisture. The result looks original but performs like a modern roof.”
— James K.
Property manager, Cape Town
“We run a small contractor crew and often refer clients to ResealCanberra for waterproofing and cavity wall assessments. Their technical guides are practical, and their on-site work is consistent.”
— Thabo N.
Contractor, Johannesburg
For high-rainfall regions like the Western Cape, liquid-applied membranes combined with proper drainage systems are most effective. We recommend a two-coat polyurethane system over a cementitious base, especially for flat roofs and balconies. This approach handles the prolonged wet season without cracking.
Yes, individual clay or slate tiles can be sourced and replaced, and cracked tiles can often be repaired with epoxy-based fillers. The key is matching the original material profile and colour. We regularly work with reclaimed tiles from older buildings to preserve the architectural character.
The critical step is installing a breathable insulation material, such as mineral wool or wood fibre board, rather than closed-cell foam. We also ensure the cavity remains ventilated at the top and bottom to allow moisture to escape. A pre-installation damp survey is essential to identify existing issues.
A properly installed liquid membrane or sheet system can last between 10 and 15 years in South African conditions, depending on UV exposure and foot traffic. Regular inspections every two years help catch minor failures before they become structural issues.
Yes, we offer scheduled maintenance contracts that include bi-annual inspections, gutter clearing, sealant checks, and minor repairs. These plans are tailored to the building's age, roof type, and local climate. Contact us to discuss a plan for your property.
The information, technical guides, and recommendations published on this website are provided for general informational and educational purposes only. They reflect the professional experience of ResealCanberra in the fields of building maintenance, waterproofing, and heritage restoration within South African climatic and structural conditions.
All content is based on industry best practices and local building standards applicable at the time of writing. However, site-specific conditions, material availability, and regulatory requirements may vary. ResealCanberra makes no representation or warranty, express or implied, regarding the completeness, accuracy, or suitability of any information for a particular project or location.
Any reference to specific products, materials, or methods does not constitute an endorsement or guarantee of performance. Readers and practitioners are advised to consult a qualified professional and conduct independent assessments before applying any technique or specification described on this site.
ResealCanberra shall not be held liable for any loss, damage, or injury arising from the use or misuse of the information provided. The user assumes full responsibility for the application of any content and for compliance with all applicable local laws, regulations, and safety standards.
This section serves to clarify the boundaries of the information shared and to prevent misinterpretation of technical advice as a binding professional consultation. For project-specific guidance, please contact us directly.
Our approach is rooted in local climate data, material availability, and building heritage — not generic international standards.
We specify membranes, sealants, and drainage systems rated for high UV exposure and seasonal downpours typical of the Cape and Highveld regions.
Our restoration work respects original materials — slate, clay, lime mortar — while integrating modern waterproofing that doesn’t trap moisture or alter appearance.
Every technical article and case study is reviewed by local contractors and engineers before publication. No fluff — only field-tested advice.
Trusted by property owners and contractors
Our guides are referenced by building surveyors and restoration specialists across Gauteng and the Western Cape. The same detail we put into client projects goes into every article and review on this site.