Balcony Waterproofing Failures — Why They Leak & How to Fix Them Right

Balcony leaks are behind 60%+ of waterproofing failure claims in NSW, especially in apartments and coastal properties.

Common causes

• Failed membranes from age or UV exposure

• Poor fall to drains

• Cracked tiles or screed

• No overflow provision

• Incompatible waterproofing materials

  
  

CWG NSW Remedial Solution

We don’t just reseal — we fix the root cause.

✔ Tile removal & screed repair✔ New Class III waterproof membrane✔ Drainage improvement & fall correction✔ Tile reinstatement or modern upgrade✔ Balustrade compliance check

Prevention Tip

Regular balcony inspections every 3–5 years can prevent costly internal damage & mould growth.