CBM Waterproofing
CBM team torching down a bitumen waterproofing membrane on a roof

Waterproofing contractors in Cape Town

Waterproofing for flat roofs, balconies, decks, and basements across Cape Town. We find where the water is getting in, match the right system to the surface, and put our own people on the job.

Free quote

How it works

Send a few details. We will come and find where the water is getting in, measure up, and put a written quote together for you. No charge for the quote.

We come out and trace the leak to its source.
A written quote that names the system and the area in m².
We call you back, usually the same day.

Get a waterproofing quote

Tell us where the water is coming in and we will call you back.

What we do

Find the leak, then seal it

A leak inside rarely starts where it shows. We trace it back to the source, a cracked membrane, a failed joint, a parapet, or a blocked box gutter, and fix that, rather than coating over the stain and hoping. Then we match the system to the surface and how much water it has to hold.

Flat roofs, parapets, and box gutters
Balconies, decks, and walkways
Basements and retaining walls
Torch-on bitumen and self-adhesive membranes
Acrylic and cementitious coatings
Crack repair and joint sealing
Torch-on waterproofing membrane on a flat roof in Tokai
How we work

The way we waterproof

The same approach on every job, whether it is one balcony or a full roof.

Find the source

We trace the leak back to where the water is actually getting in. The stain on the ceiling is rarely the source. Fixing the cause is what stops it coming back.

The right system

A flat roof, a planter box, and a basement wall each need a different system. We match the product to the surface and the amount of standing water it takes.

Our own people

The people who quote the job are the people who do it. No unknown crew turning up at your door.

Sized for any job

From a single balcony to a full parking deck, we plan the work around access, the weather, and the people using the building.

Waterproofed parking deck in Camps Bay
Recent work

Parking deck, Camps Bay

We stripped and re-waterproofed a parking deck in Camps Bay that was letting water through to the level below. A deck like this takes daily traffic and standing water, so we installed a system built for that and corrected the falls so the water runs to the outlets instead of pooling.

Get a waterproofing quote

Tell us where the water is coming in and we will come and take a look, no charge.