Good paving in Cape Town can comfortably last 25-30 years. The reason most driveways and patios get tired after 8-12 is almost always the same: nobody maintained them. A few simple seasonal habits keep your paving maintenance in Cape Town on top of moss, salt, faded colour and washed-out joints — and add genuine years to the life of the surface. This guide is the full year-round care routine we recommend to every client, broken down by season and by problem.
Why Cape Town paving needs different care
Our climate is specific. Compared to inland South Africa, Cape Town paving deals with:
- Concentrated winter rain. Six months of intermittent wet, perfect for moss and joint sand washout.
- Six months of intense summer UV. Fades pigment, dries jointing material, bakes contaminants in.
- Salt air on the Atlantic Seaboard. Slowly degrades soft and porous materials.
- The Cape Doctor. Drives dust, sand, leaves and seeds into joints.
- Mature oak and milkwood litter. In the Southern Suburbs, leaf litter stains and feeds joint weeds.
A pavement maintenance routine designed for Joburg doesn’t quite fit. Here’s the one that does.
The Cape Town paving maintenance calendar
Spring (September-October): The big annual reset
This is the most important window of the year. Winter rain has finished, the surface is dry, and you have months of good weather to do work that needs to cure.
- Sweep thoroughly. Get all leaves, sand and debris out of joints with a stiff broom.
- Pressure wash. A 130-150 bar pressure washer with a fan-spray nozzle. Don’t use a pinpoint nozzle — it’ll blast joint sand out and chip surfaces.
- Treat moss and lichen. Apply a paving-safe moss killer (sodium hypochlorite-based or commercial product) to all joints and shaded areas.
- Re-sand the joints. Brush kiln-dried sand into every joint, compact with a board, top up. For premium installs, use polymeric jointing sand.
- Check edges. Walk the perimeter. Any pavers shifting at the edge need attention before a small problem becomes big.
- Seal if scheduled. Natural stone and clay brick need re-sealing every 2-4 years — spring is the time.
Summer (November-March): Light touch maintenance
- Sweep dust and dry debris weekly during peak Cape Doctor weeks.
- Spot-clean spills (oil, wine, food) immediately.
- Check that joints are still filled — top up sand if any have settled.
- Rinse coastal driveways monthly with fresh water to flush salt.
Autumn (March-May): Pre-winter prep
- Clear all leaves before the first big rain.
- Check drainage outlets, channels and downpipes are clear.
- Top up joint sand where summer use has settled it.
- Inspect and address any cracks before water can work into them.
Winter (May-September): Damage control
- Keep drainage channels clear after every big rain.
- Don’t pressure wash in wet conditions — you’ll just push more water under the surface.
- Treat any spreading moss with a quick spray of moss killer.
- Note any pooling, sagging or new cracks — fix in spring.
The big problem: moss and lichen
Cape Town’s wet winters are heaven for moss. Within a single winter, an untreated shaded patio in Pinelands, Tokai or Constantia can go from clean to green. Worse, moss roots break down the paver surface over time.
The fix
- Prevention: A spring application of dilute pool chlorine (sodium hypochlorite, 1:10 with water) on shaded areas kills spores before they grow.
- Treatment of existing moss: Same solution, applied directly, left for 24-48 hours, then brushed and rinsed off.
- For heavy infestations: Commercial paving moss killers from any garden centre. Follow the dilution instructions.
- For deep-rooted moss in joints: Sometimes the joint sand needs re-doing entirely.
What NOT to do
- Don’t use undiluted bleach — strips colour and pits surfaces.
- Don’t use a wire brush on softer materials — scratches the face.
- Don’t ignore it — each winter it spreads.
Dealing with salt on Atlantic Seaboard paving
From Sea Point to Llandudno, salt-laden air settles on every horizontal surface. Over years, it degrades porous materials and leaves white deposits.
- Rinse monthly: A fresh-water rinse with a hose flushes salt off the surface.
- Seal porous materials: Travertine and natural stone in coastal locations need re-sealing every 2 years (instead of 3-4 inland).
- Wash after big southeaster events: Two days of strong wind brings a serious salt load.
For coastal homes, the right material choice from the start (clay brick or sealed travertine) makes maintenance far easier. See our guide on choosing driveway materials for the long-term picture.
Cleaning specific stains
Oil and grease (driveways)
Cover fresh spills with cat litter, sweep up after 24 hours. For older stains, a degreaser brushed in, left 15 minutes, then pressure washed off. Repeated applications often needed for deep stains.
Wine, food and braai grease (patios)
Mild dish soap and warm water for fresh spills. For set-in stains, a poultice of bicarbonate of soda and water, left 12 hours, then washed off.
Tannin stains from leaves
Common under Southern Suburbs oaks. A dilute oxalic acid solution from a hardware store, applied per instructions. Test on a hidden corner first.
Efflorescence (white bloom on new pavers)
The white deposit that sometimes appears on new concrete pavers. Usually fades on its own within 12 months. Mild acid-based efflorescence cleaners speed it up. Don’t panic and don’t replace pavers — it’s cosmetic.
Rust from garden furniture
Oxalic acid or commercial rust remover. Move furniture and use furniture pads to prevent recurrence.
Joint sand: the maintenance most homeowners skip
Joint sand is what holds your paving together. Without full, compacted joints, individual pavers can rock, water gets under the surface, and the whole installation degrades fast.
Standard kiln-dried sand
Brush into joints when dry, compact with a flat board, top up. Refresh annually in spring. Lasts well unless heavily washed out.
Polymeric jointing sand
A sand-and-polymer mix that sets hard when watered. Better at resisting weeds and washout. Lasts 8-15 years. Slightly more expensive but ideal for premium pool decks and high-end patios. Apply only on a completely dry day with no rain in the next 24 hours.
Sealing: when, what, why
Not all paving needs sealing. The general guide:
- Concrete interlock: Optional. A sealer enhances colour and reduces fading. Re-coat every 3-5 years.
- Clay brick: Usually unsealed. Sealing isn’t necessary unless you want a slight sheen.
- Travertine: Yes, essential. Re-seal every 2-4 years.
- Sandstone and slate: Yes. Re-seal every 2-3 years.
- Cobblestone: Optional, generally not sealed.
Use a paving-specific penetrating sealer, not a surface coating. Surface coatings can peel and look terrible.
The weed question
Weeds in joints are mostly a symptom of poor jointing. Fill joints properly and weeds have nowhere to root. For existing weed problems:
- Hand-pull young weeds before they seed.
- Apply a paving-safe pre-emergent in spring.
- Re-sand any joints where weeds have hollowed them out.
- Consider switching to polymeric jointing if weeds are persistent.
When DIY maintenance isn’t enough
Call in a paving specialist when you see:
- Multiple pavers rocking when stepped on (base failure).
- Cracks wider than 3mm or spreading (structural issue).
- Persistent water pooling that didn’t pool before (drainage failure).
- Significant edge migration or kerb damage.
- Subsidence around drains, downpipes or service trenches.
For widespread issues, sometimes a lift-and-relay is more cost-effective than ongoing patching. Our work often includes assessing whether maintenance, repair, or replacement is the right call — honest advice based on the actual condition, not on selling the biggest job.
A quick maintenance budget
For a typical home with 80-120 m² of paving:
- DIY annual care (sand, moss killer, hire a pressure washer): R600 – R1 200.
- Professional annual service (clean, re-sand, treat moss, inspect): R2 500 – R5 500.
- Sealing (when due, premium materials): R45 – R85 per m².
Get your paving maintained the right way
If you’re not sure where to start, we offer once-off and annual paving maintenance contracts across Cape Town — from a single courtyard in Sea Point to a full Constantia estate. Get in touch via the quote form, message us on WhatsApp at 084 483 1774, or give us a call. We’ll come round, look at your paving, and tell you straight what needs doing now, what can wait, and what won’t make any difference.
When maintenance turns into a repair job
Regular maintenance keeps your paving looking sharp for years, but some signs mean it’s time to call us for proper repair work rather than another wash-and-reseal:
- Sinking or sunken pavers across more than 2-3 metres. Usually means the base has failed underneath. Re-laying the affected section is cheaper than waiting for the whole driveway to follow.
- Wide gaps between pavers that re-open after every re-sand. Edge restraint failure. Needs a new edge course installed before the field can be re-bedded.
- Spalling or surface flaking on more than 10% of the pavers. Salt or freeze-thaw damage. Affected pavers should be lifted and replaced — sealer won’t fix what’s already lost surface.
- Water pooling on a previously level patio. Ground movement or drainage failure. We can usually re-set the affected slabs and add a channel drain to prevent recurrence — a job for our patio install crew.
- Pool coping cracks or shifts. Safety issue. Pool coping is the first thing we check during pool surround repairs because a shifting coping eventually pulls in the field pavers.
Catch any of these early and the repair is a one- or two-day job. Leave it too long and you’re paying for a full re-install. Send us photos and we’ll tell you honestly whether it’s a maintenance job or a repair.