Your Best Local Roofing Insulators
Leaders in Flat Roof Waterproofing & Insulation
Multi-Dex is one of South Africa’s most trusted insulation waterproofing companies, specialising in:
- Concrete Slabs – A waterproof membrane is fitted over the concrete surface to seal it.
- Flat Roof – Flat roofs tend to be be prone to leaks and such need to be waterproofed and well-mantained.
- Low-pitched Metal Roof Waterproofing Applicators – Our strict, methodical installation process for flat metal roofs ensures the Multi-Dex system is as effective as possible for your home.
The scale and extent of our operations allows us to install our waterproofing range on any sized project, (from a residential home to an airport hangar) in a cost-effective, quick manner, with limited interruptions..
- 71 Voortrekker Avenue Edenvale 1610 Johannesburg
Your Flat Roof Waterproofing Services Provider
Why Waterproofing is Important?
Waterproofing protects your buildings structure from water damage cause by seasonal rain, moisture and leaks. Flooding, water damage and mold outdo fire as one of the leading causes of property damage.
Therefore it is a good idea to waterproof your home, office, shop or factory in order to avoid structural and aesthetic damage to the building.
24/7 Emergency Roofing Service.
+27 11 452 3326
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01.
Concrete Roof Waterproofing
Concrete roofs are usually flat and have a notorious reputation for leaking. The fact is that these roofs will leak if not waterproofed effectively, early on in construction. This also allows for internal finishes to be undertaken.
02.
Flat Metal Roof Waterproofing
The National Building Regulations and Building Standards Act requires all roofs to be constructed safely and in such a way that they cannot be damaged by wind or water.
03.
Low Pitched Roof Waterproofing
A roof that is nearly level or slightly pitched is called a low slope or low pitched roof. No roof should be dead level flat; it must have at least a slight slope to drain.
04.
Inverted Roofs Waterproofing
Our professionally tested process for installing on inverted roofs ensures the Multi-dex system is as effective as possible for your home.
Why Choose Multi-Dex
Waterproofing protects your buildings structure from water damage cause by seasonal rain, moisture and leaks. Flooding, water damage and mold outdo fire as one of the leading causes of property damage.
Therefore it is a good idea to waterproof your home, office, shop or factory in order to avoid structural and aesthetic damage to the building.
Waterproofing your building is a good preventative risk measure in order to avoid damage to property, valuables and health risks to people and it should be one of the first improvements a homeowner considers.
Qualified Experts
Over 8 million square meters completed since inception in 1994
Flexible Schedule
Reduce your carbon footprint
Workmanship Quality
Up to 15 year workmanship guarantee
Affordable Package
Top construction companies use us
Quality Professionals
BEE Compliant
Special Offer
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Here’s What Our Client Say about Us
“The new low pitched roof waterproofing you installed over our babies’ nursery has bought peace of mind to all of us here at TLC. Not having to worry about a leaky roof every time we have rain is such a great relief! Thank you Multi-Dex!”
Pippa Jarvis
MD, The Love of Christ Children’s Home



Accreditation
Multi-Dex is passionate about its business. We are proud to be members of a number of industry related boards and associations that hold service excellence and product quality as their mandates.

Professional Waterproofing Association
Established in 2009, to promote, support, protect and to pursue the common interest of clients. As well as specifying, authorities for waterproofing materials and methods.

Master Builders Association North
Master Builders Association North is a Federation of registered employers’ organisations which represent contractors and employers operating in the building and construction sectors. The Association is regulated in terms of Section 107 of the Labour Relations Act, Act 66 of 1995..

Waterproofing Federation of South Africa
Supports open competition and the free enterprise system. Indeed, this competitive environment has led to the success of its member firms. WFSA members recognize that the perpetuation of such a healthy business environment is greatly influenced by their own professional conduct.