Roof Waterproofing
Roof Waterproofing in Gauteng
Seal your roof against the Gauteng rain. Sicon installs proven waterproofing systems on industrial, commercial and retail roofs across Johannesburg, Pretoria and Gauteng, stopping leaks at the source and protecting everything below.
- Free site assessment
- Proven waterproofing systems
- Guaranteed watertight
We reply within one business day. Your details stay private.
Real Results
Before & After
See the difference a professional waterproofing system makes on a leaking roof.
The Smart Choice
Waterproof It Properly, Do Not Just Patch It
Quick patches and cheap sealants fail fast. A proper waterproofing system is engineered to last and keep water out for years.
Proper Waterproofing System
- Engineered for your roof type
- Seamless, fully bonded cover
- Backed by a workmanship guarantee
- Lasts years, not months
- Protects stock and structure
Patch & Pray
- Cheap sealants crack and peel
- Leaks return after the next storm
- Repeated call outs and cost
- No real guarantee
- Damage keeps spreading
Our Process
What a Sicon Waterproofing Job Includes
A complete, methodical system that leaves your roof sealed and watertight.
Inspection
A full assessment of the roof, leaks and surfaces to be waterproofed.
Surface Prep
Cleaning, drying and priming so the system bonds properly and lasts.
Crack & Joint Repair
Cracks, joints and weak points repaired and reinforced before sealing.
Waterproofing System
The right system applied for your roof: torch-on, liquid or membrane.
Detailing & Reinforcement
Gutters, laps, flashings and penetrations reinforced and fully sealed.
Final Water Test
We check and test the finished system to confirm it is watertight.
Why Waterproof
The Payoff of Proper Waterproofing
Stop Leaks for Good
A sealed roof keeps water out and protects stock, ceilings and equipment below.
Protect the Structure
Waterproofing prevents the corrosion, rot and concrete damage that water causes.
Cooler Building
Reflective systems cut heat gain and can lower cooling costs below the roof.
Backed by Guarantee
Quality systems and workmanship that come backed by a guarantee you can rely on.
Sicon waterproofed our office park roof after years of recurring leaks. Two rainy seasons later it is still bone dry. Properly done and properly guaranteed.
Centre ManagerOffice park, Pretoria
Waterproof My RoofOur Work
Recent Waterproofing Projects
A look at commercial and industrial roofs Sicon has waterproofed across Gauteng.
More Services
Other Roofing Services
Questions
Roof Waterproofing FAQs
The questions Gauteng businesses ask us most about waterproofing a roof.
Ask Us a QuestionWhat roof waterproofing systems do you use?
We use proven systems matched to your roof, including torch-on membranes, liquid applied membranes and acrylic systems for metal, concrete and flat roofs.
How long does roof waterproofing last?
A properly installed system lasts many years. Lifespan depends on the system and the roof, and we recommend periodic checks to get the most out of it.
Do you waterproof flat and concrete roofs?
Yes. We waterproof flat roofs, concrete roofs, metal sheeting, gutters, parapets and problem areas like penetrations and box gutters.
Is the waterproofing guaranteed?
Yes. Our waterproofing is backed by a workmanship guarantee, and many systems carry a manufacturer warranty as well.
Which areas do you cover?
We serve Johannesburg, Pretoria and the wider Gauteng region from our base in Benoni, including the East Rand.
How do I get a quote?
Call us on 083 345 4649 or complete the contact form and we will arrange a free site visit and written quote.
Get Started
Seal Your Roof Against the Rain
Book a free site assessment from Gauteng's commercial roofing specialists. Tell us about the leak and we will recommend the right waterproofing system.
- Free on site assessment
- Clear written quote, no obligation
- Fast response across Gauteng
- 083 345 4649
- dwain@sicongroup.co.za
- 119 Pretoria Road, Rynfield, Benoni, Gauteng
We reply within one business day. Your details stay private.





