Roof Waterproofing in Johannesburg
Flat concrete, IBR, corrugated and tiled roof waterproofing and leak repairs across Fourways, Sandton, Randburg and Johannesburg North.
Leaking roof? PAQ Man waterproofs flat concrete roofs, IBR and corrugated sheeting and tiled roofs across Johannesburg — finding the real source of the leak first, then sealing it properly so it stays dry through the Highveld summer storms.
Roofs we waterproof
Every roof leaks for a different reason, so we choose the system to suit the roof — not the other way round.
- Flat concrete roofs and slabs — torch-on membrane (ThermoFlex)
- IBR and corrugated iron roofs — sealing of laps, screws, flashings and rust spots
- Tiled roofs — ridge, valley and flashing repairs, cracked tile replacement
- Parapet walls, box gutters and roof-to-wall junctions — the most common leak points
Signs your roof needs waterproofing
Don't wait for water to pour through the ceiling. Get the roof checked if you notice any of these:
- Brown water stains or bubbling paint on ceilings
- Damp patches or mould on the top of walls
- Cracked, lifted or blistered waterproofing on a flat roof
- Ponding water that stays on the roof days after rain
- Rusted sheeting, loose screws or perished flashings
How we work
- Free on-site inspection and quote — we find where the water is actually getting in
- Surface preparation: cleaning, removing failed layers, repairing cracks
- Primer and waterproofing system applied to manufacturer specification
- Flashings, outlets and joints detailed properly — where most leaks start
- Final check and guarantee on workmanship
Frequently asked questions
How much does roof waterproofing cost in Johannesburg?
It depends on the roof size, type and condition, and on the system used. We give a free, fixed written quote after inspecting the roof — call or WhatsApp 062 481 3406 with a few photos to get started.
Why use torch-on waterproofing on a flat roof?
A torch-on membrane such as ThermoFlex is heat-bonded to the roof, forming a tough, durable waterproof layer that handles foot traffic, standing water and the Highveld sun. It's the proven choice for flat concrete roofs and slabs.
When is the best time to waterproof a roof?
Before the rainy season — ideally between April and September in Gauteng, when it's dry. We can still do emergency repairs in summer between storms.
Which areas do you cover?
Johannesburg North and surrounds, including Fourways, Sandton, Randburg, Rivonia, Bryanston, Northriding and Roodepoort.
Related services
Call or WhatsApp 062 481 3406 for a free quote.