Flat waterproofing Cape Town covers the older walk-up blocks common through Sea Point, Green Point, Woodstock and the Southern Suburbs, where the building is decades old and much of the stock is rented.
Newer complexes and modern apartment blocks are covered under apartment waterproofing. The full service range is under Waterproofing Cape Town.
Send the area involved and photos of the surface as it stands. That is usually enough to price it.
Get a QuoteWhat Older Blocks Have in Common
- Layered roof coatings. Three or four generations of membrane, where stripping is the largest cost line.
- No original wet-area membrane. Bathrooms tiled straight onto screed, because that was normal at the time.
- Solid walls. Penetrating damp on the exposed elevation, and no cavity to stop it reaching the inside.
- Deferred maintenance. Several small defects surfacing together rather than one large one.
- Limited reserves. Older schemes often need phased work rather than a single project.
Landlord and Tenant
In rented flats the person who notices the leak is usually not the person who can authorise the repair. Reporting it in writing with dates and photographs matters, because it establishes when the landlord was informed.
Damp caused by a building defect and damp caused by ventilation are different problems with different responsibility, and a moisture survey is what separates them. See landlord waterproofing.
Flat Waterproofing Cape Town Prices
| Job | Indicative range | What moves it |
|---|---|---|
| Strip failed membrane | R60 – R150 per m² | Including removal from site. |
| Torch-on membrane, single layer | R300 – R400 per m² | Flat and low-slope roofs. |
| Flat roof, 40 m² in torch-on | R12,000 – R24,000 | A typical sectional title roof. |
| Exterior wall coating | R90 – R220 per m² | Prepared and coated. |
| Crack repair | R150 – R450 per linear metre | Width, depth and reinforcement. |
| Wet area waterproofing | R4,500 – R12,000 | Per bathroom or shower. |
| Leak trace and inspection | R750 – R2,500 | Area, access and testing time. |
| Condition survey and report | R4,500 – R25,000 | Building size and detail. |
| Call-out and assessment | R450 – R950 | Often credited against the work. |
These are indicative market ranges, not a quotation. They are compiled from published South African waterproofing and roofing pricing to give you a starting point for budgeting. They are not the rate card of any company on this platform.
Compare quotes on the system specified, the number of coats, what preparation is included and what the guarantee covers. A rate per square metre means nothing until you know what the rate covers.
Compare quotes on what is included, not on the total alone.
Request QuotesPhasing Work on a Limited Budget
- Stop active water ingress first, even temporarily.
- Get a condition assessment across the whole building rather than quoting leak by leak.
- Rank by consequence: roof over occupied space before boundary walls.
- Do complete sections rather than partial ones, so each phase is genuinely finished.
- Budget the next phase before the current one is signed off.
Related Services
Frequently Asked Questions
My rented flat has damp. Who fixes it?
A building defect such as a failed roof or penetrating damp is normally the landlord's. Condensation from ventilation and heating is usually treated as the tenant's. A moisture survey separates the two, which is worth having before the argument starts.
Is an old flat block worth waterproofing or should the roof be replaced?
If the structure is sound and the problem is layered, failed coatings, stripping back and re-laying is far cheaper than replacement. Where the slab itself is spalling and reinforcing is exposed, that has to be assessed first.
What should the quote specify?
The measured area, the system and product by name, the number of coats or layers, the preparation included, how upstands and outlets are detailed, access equipment, the guarantee term and the exclusions.
Do I need the leak found before the work is quoted?
If there is an active leak, yes. Water enters at one point and shows at another, so coating the stained area often misses the entry point entirely.
Is this covered by insurance?
Insurers generally cover sudden damage rather than gradual failure. A system at the end of its life is normally treated as wear and tear, and storm damage is a separate question your policy wording decides.
How many quotes should I get?
Three or more, on the same written brief. Rates vary widely because scope varies widely, and a spread of quotes shows quickly which contractor has actually inspected the job.
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