Aluminium carports in Cape Town: what to know before you build

A carport in Cape Town has a harder life than most. Salt in the air, summer sun that cooks paintwork, and a south-easter that will find any weak fixing. This guide covers why we build carports in aluminium rather than steel or timber, what they cost from R2 100 per square metre, the roof styles worth considering, and how the process runs from site visit to install.

Why aluminium beats steel, timber and shade net here

Drive through any Cape Town suburb and you will see the usual carport materials ageing badly: shade net gone grey and baggy, steel frames bleeding rust at the welds. The coast is hard on structures, and a carport stands in the worst of it all day. Here is how the options compare:

• Steel. Strong and cheap upfront, but salt air finds every scratch, weld and bolt hole. Repainting the frame every few years becomes part of owning it.
• Timber. Handsome on day one, then it wants sanding and sealing on repeat. Skip the maintenance and it greys, cracks and eventually rots.
• Shade net. The cheapest cover, but it is shade rather than shelter. UV fades and sags it, and it does nothing against winter rain.
• Aluminium. It does not rust. Our aluminium carports are marine-grade with stainless fasteners and no ferrous metal in the build, finished in baked enamel or powder coat, with a lifetime corrosion guarantee on the aluminium.

What it costs

Carports start from R2 100 per square metre, supplied and installed. A single of about 3 x 5 m is 15 square metres, which puts the entry point near R31 500. A double at around 6 x 5.5 m is 33 square metres, so from roughly R69 300. Those figures are indicative at the starting rate; span, roof choice, fixing and access all shift the final number, and every carport is quoted individually after a free site visit.

If you want a ballpark tonight rather than next week, the instant estimator on our pricing page works from your own measurements.

Flat, pitched or louvre roof

The workhorse is a flat or gently sloped roof in IBR aluminium sheeting, the same solid cover we fit on our fixed awnings. It sheds winter rain, keeps direct sun off the car and suits most driveways. A pitched roof costs more but lifts a street-facing carport and can follow the roofline of the house.

The premium option is a louvre-roof carport, from R3 200 per square metre. Rotating aluminium blades open for light and airflow and close to around 95% weatherproof, with integrated gutters carrying the water away. It is a real step up in cost on a double, but it turns the carport into usable covered space: pull the cars out and you have a shaded spot for a braai or a work bench.

Sun, salt and your paintwork

Cape sun is unkind to cars that stand outside. Paint dulls, dashboards crack and rubber trim dries out, and near the sea there is salt fallout settling on the bodywork and holding moisture against it. A solid roof deals with all of it at once: full shade, no rain spotting, no salty mist drying on the bonnet every morning. If you have ever parked under a tree to dodge the sun, you already know the theory; a carport is the version that does not drop sap on the roof.

The same logic applies to the structure doing the protecting. It faces identical conditions to the car underneath, which is exactly why we will not put ferrous metal anywhere near a coastal install.

Do you need approval?

Sometimes, and it is worth checking before you build rather than after. The answer depends on the carport's size, where it sits on the erf, and how close it comes to the boundary and the street. Some smaller structures go up without full plans while others need a submission, and sorting out an unapproved structure later costs far more than doing the paperwork first. The rules also differ between municipalities, so what goes through easily in Blouberg will not automatically go through in Stellenbosch. We have set out the rules in our guide to pergola and carport approval in Cape Town, and we advise on your specific property during the free site visit.

How the process runs

Get in touch and we come out for a free site visit: we measure the driveway, check slope, fixing surface and wind exposure, and talk through roof styles and colours. A fixed written quote follows within 48 hours, engineered for the Cape Doctor, which regularly pushes past 80 km/h. Accept it and installation follows within 4 to 5 weeks.

We install across Cape Town and the wider Western Cape, from Table View and Blouberg through the Helderberg and Winelands to the Overberg and the Garden Route, and we hold a 5.0 rating on Google across 15 reviews.

FAQ

How much does a double carport cost in Cape Town?

Aluminium carports start from R2 100 per square metre supplied and installed, so a 33 square metre double works out from around R69 300 at the entry rate. Roof choice, span and access move the final number, which we fix in a written quote after a free site visit.

Will an aluminium carport rust near the sea?

No. We build in marine-grade aluminium with stainless fasteners and no ferrous metal, and the aluminium carries a lifetime corrosion guarantee, so salt air is not a problem for the structure.

Can an aluminium carport handle the Cape Town wind?

Yes. Every structure we build is engineered for the Cape Doctor, which regularly blows at over 80 km/h, and we check exposure and fixing as part of the site visit.

Can I get a carport with an opening roof?

Yes. A louvre-roof carport uses rotating aluminium blades that open for airflow and close to around 95% weatherproof, with integrated gutters. It starts from R3 200 per square metre.