With more than 35 years of industry experience, Thorn Group provides reliable waterproofing services in Johannesburg for homes, apartment complexes, commercial buildings and industrial facilities. Our experienced teams work throughout Gauteng, delivering professional waterproofing systems that protect buildings from moisture intrusion, leaks and long-term structural damage.

We use premium waterproofing products, including trusted Sika systems, to provide effective and long-lasting protection for a wide range of applications. Although waterproofing represents a relatively small portion of a construction or maintenance budget, poor installation is one of the leading causes of expensive building defects. Our experienced team ensures the correct diagnosis, product selection and application for every project.

Every property has unique waterproofing requirements. Thorn Group begins each project with a detailed inspection to identify the source of water ingress before recommending the most suitable waterproofing solution. Contact our team today to arrange a free consultation and professional assessment.

Our Waterproofing Services Include

• Roof waterproofing
• Balcony waterproofing
• Flat roof waterproofing
• Concrete slab waterproofing
• Flashing repairs
• Expansion joint waterproofing
• Waterproof membrane installation
• Box gutter waterproofing
• Parapet wall waterproofing
• Waterproofing for apartment complexes