Waterproofing Northcliff: one request and independent local contractors reply with prices for hillside homes, retaining walls, terraces and roofs.
Say whether the water comes from above, behind a wall or through a terrace, and get quotes.
Get Waterproofing QuotesCommon Jobs on Sloping Sites
- Retaining wall waterproofing. Walls holding back soil that leak into rooms or garages.
- Basement waterproofing. Lower-level rooms cut into the slope.
- Balcony waterproofing. Terraces and decks over rooms below.
- Flat roof waterproofing. Flat roofs on split-level homes.
- Damp proofing. Damp on walls that sit against the hillside.
Water From Uphill
- Runoff. Storm water from higher ground flows against walls and into terraces.
- Blocked weep holes. Water builds up behind retaining walls when drainage is blocked.
- Soil-side membranes. Walls built without a membrane on the soil side let moisture straight through.
- Terrace falls. Terraces that do not fall away from the house send water to the door.
Drainage is often as important as the waterproofing itself.
Waterproofing Northcliff Prices
Ballpark prices so you can sanity-check a quotation.
| Service | Ballpark price |
|---|---|
| Damp assessment | R850 - R3,500 |
| Retaining wall membrane | R250 - R650 per m² |
| Drainage behind a wall | R600 - R1,500 per metre |
| Hand excavation alongside a wall | R400 - R1,200 per metre |
| Basement tanking | R450 - R1,200 per m² |
| Cementitious coating | R140 - R300 per m² |
| Balcony waterproofing, excl. new tiles | R250 - R550 per m² |
| Torch-on membrane, 4 mm | R250 - R450 per m² |
Prices JUST UPDATED. Indicative ballpark figures in rand, rounded, including labour unless stated. They are not our prices or quotations, and no contractor is bound by them. Confirm VAT, access costs, the product system and what each quotation includes.
Get prices for your property rather than a range. Send one request and see who replies.
Get Waterproofing QuotesWhat Affects the Quote
- Digging. Excavating behind a wall costs more but allows a proper outside membrane.
- Inside or outside. Negative-side systems avoid digging but may not suit every wall.
- Drainage. New drains, weep holes and channels add cost.
- Access. Steep sites slow material handling.
- Finishes. Paving, decking or planters may need lifting.
Storms and Slopes
Heavy summer downpours send runoff down the slope fast. Plan excavation and membrane work for dry months, and clear drains and weep holes before the rains.
Method Options
- Outside membrane. Dig out, waterproof the soil side and add drainage. Most durable where possible.
- Inside tanking. Cementitious or crystalline coatings on the room side when digging is not possible.
- Cavity drain. A drained membrane inside the room that leads water to a sump.
Questions to Ask
- Where is the water coming from: soil, runoff or a terrace?
- Can the wall be dug out, or will you work from inside?
- How will water be drained away from the wall?
- Does the wall have structural cracks that need an engineer?
- What guarantee comes with the system?
Waterproofing Northcliff FAQs
Can a retaining wall be waterproofed from inside?
Yes, with tanking or a cavity drain membrane, when digging outside is not practical. Drainage still needs attention.
Why is my garage wall wet after rain?
Usually runoff and soil water press against a wall with no soil-side membrane or blocked weep holes.
Do I need an engineer?
If the wall is cracked, leaning or very tall, get it checked by an engineer before waterproofing.
What does retaining wall waterproofing cost?
Ballpark R250 to R650 per m² for a membrane, plus R600 to R1,500 per metre for drainage and any excavation.
Nearby Areas
Request Northcliff quotes through Waterproofing South Africa and line up each contractor's drainage and waterproofing plan.
Waterproofing South Africa is a quote and referral service. We do not carry out waterproofing work and we do not employ contractors. Work is quoted and carried out by independent local contractors, and your agreement is with the one you choose. The right system depends on an inspection and the cause of the water ingress. Ask for a written quotation, the product system and the guarantee terms before you pay a deposit.
Waterproofing Northcliff. Describe what you need once and get the best quote, fast.
Get Waterproofing QuotesGet the Best Quote, Fast
Keep it brief. Say what is leaking or damp, the type of surface and your suburb. Your enquiry is passed only to contractors suited to the job, and you decide whether to go ahead.
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