Waterproofing and roofing systems in Johannesburg

Our business is all about providing you with a cost-effective range of options
for all your roofing maintenance and repairs, using the best quality
materials and workmanship, carried out by experienced teams.

Waterproofing, Concrete Slab and Tanking Systems, and Slate Roofing are our specialities, quality workmanship is our focus!


German Building Technology

was established in 1989 and specialises in heavy duty waterproofing systems, insulated waterproofing systems as well as slate roofing.

With many years of experience, German Building Technology has been providing superior roofing and roof refurbishment in Johannesburg since 1989. Since we’ve been in business, our number one goal has been to provide quality work, reasonable pricing, and safe, friendly service.

Members of:


Technical Knowledge

From the owner through to the Foremen as well as the work teams – all have extensive technical knowledge which is used to give you the best advice and highest standard of workmanship.

Tailor-made, cost effective solutions

We will work with you in order to assist you to find the best solution for your requirements – and then provide you with the best materials at cost effective prices to ensure that all work is completed to the highest possible standard.


Warranties are given on workmanship and the manufacturers guarantee is given on materials (applies to new torch-on applications only). Ask us about our 15 year warranty!