Waterproofing Northern Suburbs Cape Town | Parow, Plattekloof, Brackenfell

Suburbs with their own page

Two suburbs in the corridor have a distinct enough building stock to need their own document rather than a paragraph.

Waterproofing in Durbanville — post-2000 estate stock, flat parapet-edged garage and patio roofs, balcony membranes and clay-soil retaining walls. A roof problem, essentially never a rising-damp one.
Waterproofing in Bellville — 1950s–80s face brick, failed damp-proof courses, bridged ground levels and the low-lying ground toward Stikland. The one part of the corridor where rising damp is genuinely common.

Parow, Goodwood and the Voortrekker Road corridor

Parow, Parow North, Parow Valley, Goodwood, Monte Vista, Bothasig and Edgemead are the oldest stock in the corridor after Bellville — largely 1940s to 1970s, plastered brick rather than face brick, with low-pitch corrugated or IBR sheeting and a lot of later flat-roofed additions.

The characteristic Parow fault is the junction between the original house and an added room: a flat concrete or sheeted addition tied into a pitched original roof, with the flashing either omitted or surface-fixed and long since lifted. Sheeting here is also old enough that the fixings are the leak — washers perish, the screw hole opens, and the water enters at a fastener rather than at a lap.

Plattekloof and the Tygerberg slope

Plattekloof, Plattekloof Glen, Welgelegen and Panorama sit on the western slope of the Tygerberg, and the slope is the whole story. Split-level houses, terraced sites, substantial retaining walls and large modern homes with generous flat-roofed entertainment areas and pool decks.

Two things follow from that. Sub-surface water moves down the slope and arrives against the uphill face of a retaining wall or a lower-level room, which is a drainage problem before it is a waterproofing one. And the flat entertainment decks are large, trafficable and usually tiled, so the membrane sits under a finish and a failure is invisible until it shows in the room below.

Brackenfell, Kraaifontein and Kuils River

Brackenfell, Protea Heights, Northpine, Kraaifontein, Kuils River and Sonkring are 1980s to 2000s: face brick and concrete tile, with the same flat-roofed garage or patio add-on that dominates Durbanville but a decade or two older.

Here the membrane on that flat section is usually on its second life, and the failure is at the upstand where the flat meets the face brick of the house. Face brick is not waterproof — it relies on its mortar joints — so where the pointing has eroded, driven rain passes through the joint and appears on the internal face of the same wall.

What we get called out to across the whole corridor

Parapet upstand failures. The defining fault of the area, in every suburb in it. Membrane terminated too low against a parapet, or never chased in at the top. See torch-on waterproofing for how the detail should be built.
Ponding on low-pitch concrete roofs. Built flat, sometimes without adequate fall from day one, so water sits and works at the laps.
Blocked internal outlets. Roofs draining through internal downpipes silt up, back up, and overflow at the door threshold.
Boundary wall cracking. Long unjointed plastered walls crack from thermal movement, then the copings let water into the top of the wall. Wall crack repair and façade sealing covers the fix.
Hotter, drier summers. The northern corridor runs several degrees hotter than the seaboard, so UV and thermal cycling degrade exposed membrane faster than the same product on the Atlantic side.

Waterproofing contractors covering the northern corridor

We work the northern suburbs as a normal part of the service area rather than as a travel job, which matters on this stock — a parapet fault usually needs a second visit during rain to confirm the entry point before anything gets quoted.

What a Northern Suburbs quote should contain, and how to tell a diagnostician from a product seller, is set out under waterproofing contractors in Cape Town. Indicative rates for every system are on the waterproofing prices page.

Areas covered

Parow, Parow North, Parow Valley, Goodwood, Monte Vista, Bothasig, Edgemead, Plattekloof, Plattekloof Glen, Panorama, Welgelegen, Brackenfell, Protea Heights, Northpine, Kraaifontein, Kuils River, Tygervalley and Stikland — plus Durbanville and Bellville, which have their own pages.

Related services

Common questions

Why does damp appear at the top of my wall and not the bottom?

That is the classic parapet signature and it is the single most common fault in the northern suburbs. Water gets behind a membrane upstand that was terminated too low or never chased into the parapet, runs down inside the wall and shows on the internal face near ceiling level. It is a roof detail problem, not a damp problem, and damp-proofing the wall will not touch it.

Does face brick need waterproofing?

Face brick sheds most water but the mortar joints are the weak point, and eroded pointing lets driven rain through. Re-pointing plus a breathable silane cream on the elevation is the standard fix. Never seal face brick with a film-forming coating — it traps moisture and spalls the brick face.

Do you cover Parow, Plattekloof and Brackenfell?

Yes. Parow, Parow North, Goodwood, Monte Vista, Bothasig, Edgemead, Plattekloof, Panorama, Welgelegen, Brackenfell, Northpine, Kraaifontein and Kuils River are all inside the normal service area, so the inspection and written quote are free. Durbanville and Bellville have their own pages because the stock there is different enough to need one.

My house is on the Tygerberg slope and the lower level is damp. Is that waterproofing?

Usually it starts as drainage. Water moving down the slope arrives against the uphill face of a retaining wall or a lower-level room, and no coating applied to the inside face will hold it back for long. The correct sequence is to intercept the water with a french drain first and tank the structure second, not the other way round.

Waterproofing in the Northern Suburbs of Cape Town