Waterproofing
Professional Waterproofing Contractors in Cape Town
Call 083 651 5813
RENU Painting & Waterproofing provides professional waterproofing services for residential, commercial, industrial and sectional-title properties throughout Cape Town. We identify and address areas where water and moisture can enter a building, helping property owners prevent costly internal damage, deteriorating finishes and structural concerns.
Our experienced team assists homeowners, body corporates, homeowner associations, property managers, apartment buildings, townhouse complexes, offices, factories, warehouses, retail premises and other organisations requiring dependable waterproofing repairs and protective systems.
Waterproofing Projects in Cape Town
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Waterproofing involves protecting a building against the unwanted ingress of water. Water penetration can cause damaged ceilings, peeling paint, damp walls, mould, deterioration of plaster and costly structural or internal repairs when the underlying source is not addressed correctly.
Every waterproofing project begins with a detailed site inspection. We assess the affected area, visible damage, possible water-entry points, surrounding roof or wall surfaces and the condition of existing waterproofing before recommending a suitable repair and protective system.
RENU assists with penetrating damp, leaking flat roofs, parapets, roof flashings, box gutters, leaking gutters, balcony floors, concrete slabs, walls and other vulnerable areas. The recommended waterproofing solution depends on the construction, exposure, movement and condition of the substrate.
Bitumen torch-on waterproofing is commonly used on suitable flat concrete roofs, balconies and box gutters. The waterproofing sheets are installed by carefully heating and sealing the overlap areas to form a continuous protective barrier. Correct surface preparation and professional installation are essential for reliable performance.
Acrylic membrane and fibre-paint systems offer a flexible, water-based waterproofing solution for suitable roofs, concrete slabs, parapets, flashings and walls. The reinforcing membrane strengthens the coating and helps the waterproofing system accommodate normal cracking and movement of the underlying surface.
Before an acrylic waterproofing system is applied, the surface is cleaned to remove dust, dirt, loose paint, rust, corrosion and deteriorated waterproofing. An appropriate undercoat is applied, the waterproofing membrane is embedded into the system and the area is finished with a suitable UV-stable protective topcoat.
RENU manages the waterproofing process from the initial inspection and quotation through to surface preparation, necessary repairs, waterproofing application, clean-up and final inspection. Each affected area is assessed individually so that the proposed solution is suited to the substrate and the cause of the moisture problem.
Choose RENU Painting & Waterproofing for professional waterproofing services in Cape Town, supported by thorough assessments, careful surface preparation, suitable waterproofing systems and dependable workmanship.
What Our Clients Say
Read feedback from Cape Town homeowners who have trusted RENU with painting, waterproofing, renovation and property maintenance projects.
“Reliable, friendly and hardworking. The project started and finished on time, and we could not be happier with the completed work.”
T Cutino
“We used RENU for a second time and once again had a very good experience. The team was professional and the quality of the work was excellent.”
B van der Linde
“We were impressed by the diligence and care taken with the painting and waterproofing of our home. The team went the extra mile to ensure we were satisfied.”
E Scheepers
Request a Professional Waterproofing Quotation
Are you dealing with a leaking roof, penetrating damp, damaged waterproofing or moisture entering your property? Contact RENU to arrange an inspection and discuss the most suitable repair and waterproofing system.
Request a Quote
Call 083 651 5813
Frequently Asked Questions About Waterproofing in Cape Town
What waterproofing services does RENU provide?
RENU provides waterproofing repairs for leaking flat roofs, penetrating damp, parapets, roof flashings, box gutters, leaking gutters, balconies, concrete slabs, walls and other areas where water or moisture may enter a building.
How do you identify the source of a waterproofing problem?
RENU begins with a site inspection to assess visible damage, vulnerable joints, roof or wall surfaces, existing waterproofing and likely water-entry points. The recommended repair depends on the source and condition of the affected area.
What is torch-on waterproofing used for?
Bitumen torch-on waterproofing is commonly used on suitable flat concrete roofs, balconies and box gutters. The sheets are installed with heated overlap areas to create a continuous protective barrier against water ingress.
What is an acrylic membrane waterproofing system?
An acrylic membrane system combines a water-based acrylic waterproofing coating with reinforcing membrane. It creates a flexible barrier and can be used on suitable roofs, concrete slabs, parapets, flashings and walls.
How do you prepare a surface before waterproofing?
Preparation may include cleaning away dirt, dust, loose paint, rust, corrosion and deteriorated waterproofing. Damaged areas are repaired and the required primer, membrane and topcoat are then applied according to the chosen system.
Can RENU waterproof balconies and parapet walls?
Yes. RENU assesses and waterproofs suitable balconies, parapets, flashings, walls and adjoining areas where cracks, movement or deteriorated coatings may allow water to enter the property.
Do you provide waterproofing for body corporates?
Yes. RENU assists body corporates, homeowner associations, sectional-title complexes, apartment buildings, townhouses and property managers with planned waterproofing repairs and maintenance projects.
How can I request a waterproofing quotation?
Contact RENU to arrange a property inspection. The team will assess the affected area, identify likely water-entry points and provide a quotation based on the repairs, preparation and waterproofing system required.