TDS
CONTRACTORS
Gauteng · South Africa

Waterproofing Contractors in Johannesburg

TDS Contractors has waterproofed some of Johannesburg's most demanding structures, from OR Tambo International Airport to the Steyn City residential estate. We work across the city on commercial, industrial and high-end residential projects — specifying, installing and guaranteeing systems that have to survive Highveld weather for decades.

Est. 199710-year insurance-backed guaranteeMember: MBAWaterproofing Federation of SA
Local conditions

What Johannesburg does to a building

Johannesburg sits on the Highveld at roughly 1,750m, and that altitude is hard on waterproofing. Intense UV at this elevation degrades exposed membranes faster than at the coast, while the summer storm season delivers sudden, high-volume downpours followed by rapid drying. The daily temperature swing — often 20°C between night and afternoon — makes substrates expand and contract continuously, and it is that thermal movement, not the rain itself, that opens most failed joints and cracks. Systems specified for Johannesburg need genuine UV stability and enough elongation to absorb daily movement without splitting.

What we do

Our services in Johannesburg

Roof waterproofing
Torch-on APP and SBS membranes, liquid polyurethane systems, self-adhesive membranes and sheet linings for flat, low-pitch and complex roofs.
Concrete repair
Repair of spalling, carbonated and water-damaged concrete — restoring sound substrate before any waterproofing is warranted over it.
Epoxy & floor coatings
Screeds, self-levelling systems, acid-resistant and high-build coatings for industrial floors, plant rooms and processing areas.
Crack injection & joint sealing
Pressure injection of polyurethane and epoxy resins to seal active leaks and structurally re-bond cracked concrete.
Basements & below-ground
Tanking and remedial systems for structures holding back water under hydrostatic pressure.
Turnkey delivery
Design and CAD specification, supply, installation and quality control under one contract, with a 10-year insurance-backed guarantee.
Proven locally

Our work in and around Johannesburg

Coverage

Areas we serve around Johannesburg

TDS Contractors works throughout Johannesburg and the surrounding Gauteng region, and nationwide across South Africa. Work elsewhere in Africa is undertaken on request.

SandtonRosebankRandburgFourwaysBryanstonMidrandRoodepoortSowetoBedfordviewGermistonKempton ParkEdenvale
How we work

Design, supply, install, guarantee

  • Design — site inspection, CAD drawings and a written specification matched to the building's exposure and substrate condition, covered by professional indemnity.
  • Supply — materials from approved manufacturers including Derbigum, ABE, Sika, Prostruct, Darachem, Duo and Poly-Seal, installed by an approved applicator.
  • Install — application by qualified field teams, sequenced around occupied buildings and live operations where required.
  • Guarantee — quality control sign-off and a 10-year insurance-backed guarantee on completed works.
Nationwide

Other areas we serve

Waterproofing specialists in Johannesburg

Speak to us about specification, guarantees and delivery for your building.