Home › Waterproofing
Cube Waterproofing

Waterproofing & painting in Johannesburg.

Stop the damp before it spreads. Premium membranes, professional coatings, and a 10-year warranty on every job we sign off.

200+Projects completed
30+ yrsConstruction expertise
NHBRCAccredited member
12-monthWorkmanship guarantee
Why it matters

Water is the slowest disaster

A small leak in a flat roof costs R3,000 to fix. Ignored for 18 months, it costs R80,000 - replastered ceilings, mould remediation, ruined cabinetry, and a slow conversation with your insurer.

Waterproofing is the cheapest insurance you'll ever buy on your home. Done once, done properly, it lasts a decade.

Services

What we waterproof

Every wet surface, every entry point.

Roof waterproofing & repairs

  • Torch-on membranes
  • Liquid waterproofing coatings
  • Crack & flashing repairs
  • Gutter sealing
10-year warranty

Balcony & deck sealing

  • Deck membrane systems
  • Tile bed waterproofing
  • Expansion joint sealing
  • Drainage solutions
10-year warranty

Basement waterproofing

  • Tanking systems (positive & negative)
  • Damp-proofing course repair
  • Sump pump installation
  • Ventilation solutions
10-year warranty

External wall protection

  • Penetrating wall coatings
  • Crack injection
  • Damp-course replacement
  • Render & plaster waterproofing
10-year warranty

Leak detection & repair

  • Thermal imaging
  • Pressure testing
  • Trace & access (minimal damage)
  • Emergency repairs
10-year warranty

Maintenance programmes

  • Annual inspections
  • Preventive treatments
  • Warranty renewals
  • Priority same-day callbacks
Discounted for existing clients
Painting

Paint that actually lasts

The right primer, the right coat count, the right paint for the right surface. Our painting team works to NHBRC standards.

  • Interior wall & ceiling repaints
  • Exterior repaints with weather-grade products
  • Specialised finishes (textured, suede, wash)
  • Roof painting (where appropriate)
  • Trim & detail work
  • Surface prep included (scraping, sanding, filling, priming)
  • Same NHBRC workmanship standards as our builds
  • 12-month workmanship guarantee
Process

How a waterproofing job runs

Four steps. Inspection to warranty in 10 days for most jobs.

01

Free inspection

We come out within 24-48 hours. Thermal imaging where appropriate. Honest verdict on whether you need waterproofing or a targeted repair.

02

Written quote

System recommended, products specified by brand, labour costed, warranty terms in writing.

03

Application

Surface prep, primer, membrane/coating, finish. Photographs of every layer for your records.

04

Warranty issued

Signed 10-year warranty certificate on completion. If anything fails, we come back and fix it.

Service area

Waterproofing across Johannesburg

Roofs in Sandton, balconies in Bryanston, basements in Houghton - same team, same standards.

Sandton · Bryanston · Atholl · Morningside · Hyde Park · Houghton · Illovo · Linksfield · Rosebank · Saxonwold · Parkhurst
FAQ

Questions homeowners ask

Quick answers before the inspection.

How long does waterproofing last?
Properly installed roof and balcony membranes last 10-15 years. Our warranty covers 10 years.
Waterproofing vs damp-proofing - what's the difference?
Waterproofing keeps water out of a building. Damp-proofing manages moisture already in or moving through the structure (rising damp, condensation, lateral damp). We handle both.
Can you waterproof while we're living in the house?
Yes. Roof, balcony, and exterior wall work doesn't disturb your living space. Interior basement tanking is more invasive - we'll tell you upfront.
Is the 10-year warranty transferrable if I sell?
Yes - the warranty stays with the property.
How quickly can you come out for an emergency leak?
Same-day callbacks. We aim to be on site within 24 hours of your first call.
Do you handle insurance claims?
We can provide the documentation insurers ask for (photo reports, inspection write-ups, scope of work). We don't manage the claim itself, but we make it easy for you to.

Damp patch on a ceiling? Cracked balcony tile?

Don't wait for the next big storm. Book a free inspection.