Waterproofing Questions & Answers

Full systems typically cost R150–R500 per m² depending on the system: liquid acrylic R150–R350, torch-on R250–R450, polyurethane R350–R500. See our price guide.

Yes. We inspect, find the cause and give you a written quote with no obligation.

Typically 5–10 years for liquid acrylic, 10–15 years for torch-on and 15–20 years for polyurethane, depending on preparation, UV exposure and ponding water.

Yes, between storms. The surface must be dry, so we plan around the forecast and can make temporary repairs first.

Yes. We provide written condition reports and itemised quotes that trustees can approve.

Pretoria East: Faerie Glen, Moreleta Park, Garsfontein, Lynnwood, Menlyn, Waterkloof, Silver Lakes, Equestria, Mooikloof, Olympus, Woodhill, Wapadrand, Die Wilgers and Erasmuskloof.

Torch-on typically costs about R250–R450 per m² installed in 2026, before extras like stripping old layers, screeding or difficult access. A 100 m² flat roof often lands around R35,000–R45,000 all in. You get an exact written quote after a free inspection.

A good torch-on membrane typically lasts 10–15 years. A reflective top coat and clear outlets extend that; ponding water and harsh UV shorten it.

Small leak repairs such as flashing reseals, a few tiles or sheet screws are usually a few thousand rand. Larger areas are priced per m² like full waterproofing. You get a written quote after we find the cause.

We can't seal a wet roof properly, but we can make a temporary repair to stop water coming in and then do the permanent fix once the roof is dry.

Usually, yes. If the sheets aren't rusted through, sealing fixings, laps and flashings plus a reinforced coating stops most leaks for a fraction of the cost of new sheeting.

Yes, if the sheets aren't cut, drilled or broken. Encapsulating with a suitable coating and sealing fixings is the safe, common approach. Removal must be done by a registered asbestos contractor.

Water is usually entering at the parapet coping or the joint between the roof slab and the wall, then soaking down through the brickwork. Sealing those points fixes the damp at the source.

Yes. The coping is fully exposed to rain and sun and is one of the most common entry points for water in flat-roofed homes.

Yes. Tiles and grout are not waterproof. A flexible membrane under the tiles is what keeps water out of the slab and walls.

Wet-area waterproofing is priced per m² and usually runs 10–30% above flat-roof rates because of the detailing. A typical shower is a small area, so the cost is modest compared with retiling later.

Yes, if the tiles are well bonded. A clear trafficable sealer plus proper detailing at the door and edges can work. Hollow or cracked tiles must come up first.

Usually at the door threshold, through cracked grout, or where balustrade fixings go through the slab. We trace the exact point before quoting.

Yes. Where you can't dig out, a cementitious system on the inside face can hold back water pressure. Drainage outside may also be needed.

Yes. We quote trafficable membranes, crack and joint repairs for decks, ramps and podiums after a site inspection, with a written scope for trustees.

A tide mark, salt bloom and peeling paint on the bottom metre of a wall, present even in dry weather, usually means rising damp. Damp that gets worse after rain is more likely penetrating damp.

Not on its own. It can hide symptoms for a while, but the water is still getting in. The cause, whether a bridged damp-proof course, cracks or a roof leak, must be fixed first.

Only if a waterproof roof coating is used and the cracks, flashings, laps and loose fixings are repaired first. Decorative roof paint alone won't stop a leak.

Roof coating is priced per m² and depends mainly on preparation. Liquid coating systems typically cost about R150–R350 per m². You get a written quote after a free inspection.