Torch-on waterproofing built to last decades, not seasons.
Specialist torch-on bitumen membrane systems for commercial, industrial and retail roofs across Pretoria and Johannesburg. 26 years of certified applicators and a written 10-year guarantee on every project.
- SABS-compliant 4mm membranes
- Certified torch-on applicators
- 10-year written guarantee
Gauteng's torch-on waterproofing specialists.
Since 1999, Sicon Group has installed torch-on bitumen membrane on warehouses, factories, shopping centres and office parks across Pretoria and Johannesburg. We work exclusively with SABS-approved 4mm APP and SBS membranes, fused on by trained applicators with proper gas-safety protocols.
- SABS 1410-approved torch-on membranes only
- Certified applicators with hot-work permits
- Full overlap, primer and detailing per spec
- Flood-test sign-off and photo report on every job
Specialist torch-on waterproofing systems.
From new installations to large-scale overlays, every project uses certified torch-on bitumen membrane installed to manufacturer spec.
Flat roof torch-on
4mm APP modified bitumen membrane fused to concrete or screed flat roofs. Seamless, UV-stable and trafficable.
Industrial torch-on
Heavy-duty SBS systems for warehouses, factories and distribution centres with high foot traffic and plant.
Concrete deck membranes
Slab roofs, plant rooms and parking decks sealed with primer plus double-layer torch-on for full redundancy.
Re-waterproofing & overlays
Stripping failed systems, prepping the substrate and re-laying a fresh certified torch-on membrane.
Detailing & flashings
Parapet walls, upstands, pipe penetrations, gutters and outlets dressed in matching torch-on detail strips.
Leak repair & patching
Targeted heat-welded patches on existing torch-on roofs, fully bonded to restore the original system.
Torch-on systems for every commercial sector.
From warehouse roofs to retail centres, the same SABS-approved torch-on systems backed by the same written guarantee.
Warehouses
Large-span concrete and IBR roofs sealed without disrupting daily logistics.
Factories
Heat-resistant SBS membranes engineered for production environments.
Retail centres
Phased, after-hours installs so trading and tenants stay unaffected.
Office parks
Multi-block estates serviced with one site supervisor and one guarantee.
Schools & campuses
Holiday-scheduled installs that protect classrooms, halls and labs.
Healthcare
Strict hot-work protocols and low-disruption schedules suited to live facilities.
Recent torch-on installations across Gauteng.
A snapshot of certified torch-on waterproofing projects completed by Sicon Group.
Why specifiers choose Sicon for torch-on.
Written guarantee
5 to 10 year written workmanship guarantee on every torch-on installation, backed by Sicon as a company.
Certified applicators
300+ trained Sicon technicians with hot-work permits. No labour brokers, no untrained subcontractors.
SABS-approved membranes
Only 4mm APP and SBS membranes from manufacturers with verified SABS 1410 compliance.
Fast response
Free assessment within 24 hours and emergency leak callouts the same day across Gauteng.
Four steps from site visit to guarantee.
- 01
Free assessment
We visit the site within 24 hours, inspect the substrate and identify the right torch-on spec.
- 02
Detailed quote
Clear, itemised proposal with the exact membrane, primer and warranty period. No surprises.
- 03
Certified install
Sicon's in-house applicators torch on the system to spec with daily site reports and photos.
- 04
Flood test & guarantee
24-hour flood test, sign-off and a signed multi-year guarantee handed over with the project file.
Torch-on teams across all of Gauteng.
Active applicator crews in Pretoria, Johannesburg and the East Rand with daily routes through Centurion, Midrand, Sandton and Randburg.
Pretoria
- Centurion
- Pretoria East
- Hatfield
- Menlyn
- Rosslyn
- Silverton
Johannesburg
- Sandton
- Randburg
- Roodepoort
- Fourways
- Rosebank
- Midrand
East Rand
- Kempton Park
- Edenvale
- Boksburg
- Benoni
- Germiston
- OR Tambo precinct
Trusted by property managers across Gauteng.
Sicon torch-on'd our entire Pretoria warehouse roof during the rainy season without a single delay. Five years later and still bone dry.
Professional from quote to handover. The team in Johannesburg cleaned up perfectly every day. Best waterproofing contractor we have used.
Their torch-on work looks like factory quality. Tidy laps, perfect detail strips. Quoted fairly and gave us a written guarantee.
Common questions about torch-on waterproofing.
How long does a torch-on roof last?
A correctly installed 4mm SABS-approved torch-on system typically lasts 15 to 20 years, with the workmanship guaranteed in writing for 5 to 10 years.
What is the difference between APP and SBS torch-on?
APP is stiffer and more UV-resistant, ideal for hot exposed roofs. SBS is more flexible and elastic, ideal for cold or movement-prone substrates. We spec the right one for your roof.
How long does installation take?
Most commercial torch-on projects are completed in 3 to 10 working days depending on size, substrate prep and weather.
Do you only service commercial buildings?
Yes. Sicon focuses exclusively on commercial, industrial and retail properties across Pretoria and Johannesburg.
Is torch-on safe to apply on an occupied building?
Yes. Our crews hold valid hot-work permits, carry fire extinguishers on site and use spotters during and after each application.
Get your free torch-on quote.
Tell us about your roof. We respond within one working day with a free on-site assessment and a clear, itemised quote.