Guides
Walk down any street from Pinelands to Paarl and ask homeowners about their last waterproofing job. A surprising number will tell you the same story: "They promised a 10-year warranty - and when it leaked in year two, nobody answered the phone."
A warranty is only worth the company standing behind it and the paper it's written on. Before you sign a single quote, here's exactly what to look for.
Every legitimate waterproofing job in Cape Town should come with two separate warranties:
If a contractor only offers "a 10-year guarantee" without distinguishing between the two, walk away. Most leaks come from workmanship, not product - and a product warranty alone won't help you when the installer disappears.
After 10+ years of dealing with failed waterproofing across Cape Town, Stellenbosch, Somerset West and the winelands, here is the checklist we'd want on our own homes:
| # | Clause | Why It Matters |
|---|---|---|
| 1 | Exact scope of works (square metres, system used, areas covered) | Stops "that part wasn't included" disputes |
| 2 | Named product and supplier | Lets you verify the product warranty independently |
| 3 | Workmanship warranty period in years (5 years minimum) | The contractor's actual skin in the game |
| 4 | Response time SLA (e.g. site visit within 5 working days) | Stops you waiting 6 weeks in winter |
| 5 | What voids the warranty | Foot traffic, third-party work, etc - know before you climb up there |
| 6 | Transferability on sale | Adds resale value to your home |
| 7 | Insurance / VAT / registration details | Confirms you're dealing with a real business, not a bakkie brigade |
If any of these are missing, ask for them in writing before you pay a deposit. A reputable contractor will add them happily.
Three exclusions show up again and again in dodgy warranties - and they're the ones that get triggered most often in Cape Town's climate:
A warranty is a promise about the future. Here's how to pressure-test it before signing:
Different systems have legitimately different lifespans. A 10-year warranty on a rubberised paint coating is a red flag; on a 4mm torch-on membrane it's reasonable.
| System | Realistic Workmanship Warranty |
|---|---|
| Acrylic / rubberised waterproofing paint | 3-5 years |
| Liquid-applied polyurethane membrane | 7-10 years |
| 4mm torch-on bituminous membrane | 10-15 years |
| TPO / single-ply welded membrane | 15-20 years |
| Cementitious tanking (basements) | 10 years |
For the trade-offs between the most common Cape Town options, see our breakdown of Uniflash vs torch-on vs rubberised paint.
On every Chipato Joint Sealers installation across Cape Town, Stellenbosch, Paarl, Somerset West and Hermanus, the standard package includes:
That last point matters more than people realise. A transferable waterproofing warranty is a genuine selling feature when you list your home - we've had buyers' bond inspectors call us directly to verify it.
If you're sitting with a quote right now, do these three things:
Waterproofing is one of those rare home expenses where the cheap option almost always becomes the expensive one. A warranty you can actually rely on is the difference between a 12-year peaceful roof and three repaint jobs in five years.
