Leaking Balcony & Roof Restoration-Melbourne

Providing Balcony Repair & Restoration Services in Melbourne

Leaking balconies, roof & rooftop terraces can cause catastrophic damage to structures below.

Water leaks may cause not only aesthetic & superficial damage but in some cases progress to affect the structure of the building envelope itself.

Waterproofing accounts for approx just 1-2% of total construction costs - yet water leaks and resultant damage is 80% of all building defects.

Article: Balcony collapse due to water damage - here  

​Leaking Balconies & Water Damage

Water ingress from balcony above

Water ingress from balcony above

Fix Leaking Balconies in Melbourne

Leaking balcony causing internal dsamage. 

Reasons Why Balconies Leak 

During construction, there are best practice building methods that can go a long way to help avoid waterproofing failure.
  • Provide a POSITIVE SLOPE. Water still has to DRAIN at the subsurface level even with a waterproofing membrane installed.
  • Balconies - provide adequate amount of EXPANSION JOINTS
  • Balconies move & need room for the normal expansion & contraction of the building envelope. Insufficient expansion joints causes stress on tiles, adhesives & the membrane - often leading to cracked tiles & membrane tears.
  • Ensure that detailing at surfaces of all penetrations and terminations are adequately addressed during both design and construction.
  • Ensure waterproofing products are approved for the specific application for which they are intended to be used. i.e balconies require membranes that can withstand  "ponding" water. 
  • All balconies will have moisture sitting between the tiles & membrane for at some point for periods of time.
Melbourne balcony waterproofers

Balconies with minimal fall must have waterproofing membranes capable of withstanding "ponding" water.

Does Melbourne Have A Leaking Balcony Syndrome?

This is an interesting article on the topic of leaking balconies in Australia: Australian Waterproofing Standards Must Improve

  • Boom construction times may create an environment of design compromise, expedient construction methods and inferior workmanship.
  • Waterproofing accounts for approx. 1-2% of total construction costs - yet water leaks and resultant damage is 80% of all building defects.
  • One third of all waterproofing defects are related to external waterproofing.
  • 7 out of 10 commercial balconies leak.
  • Litigation in relation to waterproofing and building leaks is on the rise throughout Australia, exposing massive costs in the form of both legal fees and rectification costs.

Balcony Restoration Case Study: this balcony required a complete strip off existing tiles & badly deteriorated waterproofing membrane. A new membrane installed and the balcony re-tiled. 

Melbourne Balcony Repairs & Restoration

Best Waterproofing Product for Leaking Balconies 

Liquid Rubber Membranes  - View Video Below

Waterproof A Balconies Without Removing Tiles ?

Melbourne Waterproofing Leaks
  • If a failed waterproofing membrane is the reason for water leaks, then  re-grouting or surface sealing is not the way to repair or restore a balcony. 
  • This is a short term method which may stop or slow down water leaks for a while – that is until the balcony moves and cracks the grout or tiles again.If water leaks are due to waterproofing membrane failure or deterioration, sealing the tiles will not work. 
If water leaks are due to waterproofing membrane failure or deterioration - sealing tiles alone will not work.  
Moisture seeps through tile grout

How to Fix Leaking Balconies

Effects of Water Ingress
  • Balconies and walkways are exposed to the destructive forces of the elements: rain, wind, sunlight, and freezing conditions. 
  • All too often, penetration of water through the top balcony surface and exposed edges of both reinforced concrete balconies and timber framed balconies, leads to deterioration of the balcony structure and significant defects occur, such as concrete spalling. 
  • Accumulation of calcium crystals and salts, known as “Efflorescence” occurs on balcony surfaces only in the presence of water. 
  • The waterproofing product chosen should have comparable expansion capabilities as the balcony structure itself, strongly adheres all surfaces and create a permanent water tight bond around all balcony edges and surfaces. 
  • Poorly detailed balcony surface transitions, interfaces and penetrations can lead to water ingress into occupied spaces below which in turn may lead to serious structural damage.

Registered Balcony Builder & Certified Waterproofer

Melbourne Waterproofing Company

Building Services Australia (BSA) regularly come across recurring issues that cause waterproofing failure: 

  • Inadequately waterproof detailing from balcony to wall interfaces. 
  • Using cheap (inferior) waterproofing products that are not suitable.  
  • Railing post and penetrations causing water ingress due to poor preparation and detailing. 
  • Failure to pick up building defects through the building surveyors inspection process.

CASE STUDY - Balcony Repairs​​​​ 

Balcony Waterproofing Repairs & Restoration

Multi-level apartments in Melbourne with leaking balconies requiring complete structural repairs & restoration. 

Commercial Builders for Balcony Repairs

  • Commercial Waterproofing - Remedial Construction & Waterproofing specialist. 
  • Registered Building Practitioner providing maintenance, repairs and remedial.
  • Waterproofing projects for all sectors in construction, industrial & infrastructure.
  • Balcony Waterproofing Repairs
  • Building Works & Restoration
  • Insurance repairs & Refurbishments

Leaking Balcony Repairs, Restoration & Refurbishment 

  • Building Services Australia provide commercial & insurance repairs throughout Melbourne.
  • The BSA Team are Certified Waterproofers & Registered Builder.
  • We c deliver all types of commercial and industrial building maintenance & repairs including waterproofing restoration.
  • As a registered building company with more than 20 years experience completing repairs, maintenance and renovations.
  • Our clients are from the public and private sectors and we provide QA, OHS, Certifications & Warranties.
Registered Builder Waterproofing Specialists Melbourne


Building Services Australia

Providing Specialist Remedial Construction & Waterproofing Services in Melbourne.