High Rise Waterproofing, Sealing & Water Ingress Repairs Sydney

Water ingress at height is one of the most frustrating problems in any building — leaks appear inside, but the actual entry point can be metres or even storeys away. All Trades Abseiling specialises in diagnosing and repairing water ingress on Sydney high rise buildings using industrial rope access. We test, identify the source, report on findings, and carry out the repair — all without scaffolding. For strata committees, building managers and property owners, that means faster diagnosis, lower cost, and a real fix at the actual source of the leak.

Waterproofing and sealing services

  • Water ingress investigation and testing — identifying entry points using systematic spray testing
  • Condition reports — written reports on waterproofing membranes, sealants and joints
  • Window sealing and re-glazing — perimeter sealing, gasket and rubber replacement, re-glazing
  • Joint sealing — expansion joints, control joints and panel joints
  • Flashing repairs and replacement — parapet, window head and roof flashings
  • Waterproofing membrane application — liquid-applied membranes to balconies, parapets and planter boxes
  • Elastomeric paint application — flexible waterproofing coatings for cracked render and substrates
  • Facade drainage — installing drainage points to relieve trapped moisture

Diagnosing water ingress

The hardest part of any leak is finding where the water actually enters. We use systematic spray testing — starting at the lowest likely entry point and working up — to isolate the source. Once identified, we provide a written report with photos, recommended repairs and a quote. This investigative work alone often saves owners thousands of dollars compared to speculative repairs that don't address the real cause.


Common causes we repair

  • Failed window perimeter seals
  • Cracked or perished glazing rubbers
  • Failed expansion and control joints
  • Damaged or missing flashings
  • Cracked render and concrete allowing water tracking
  • Failed balcony or parapet waterproofing membranes
  • Blocked or non-existent facade drainage

Why rope access for waterproofing

Water ingress investigation can take time — multiple test areas, observation periods, and sometimes return visits. Scaffolding for that kind of staged work is wildly expensive. Rope access lets us test and repair only where needed, return easily for verification, and keep the cost in proportion to the actual fault.


Compliance and qualifications

NSW Licence 123517C. Current industrial rope access certifications. Full WHS and SafeWork NSW compliance. Public liability insurance and workers compensation. Documentation available via our Documents page.


Servicing buildings across Sydney

We repair water ingress on buildings across Sydney including the CBD, Eastern Suburbs, Northern Beaches, North Shore, Inner West and Lower North Shore.


Get a leak diagnosed

Got a leak you can't trace? Call 0417 237 267 or use the contact form and we'll arrange an investigation.


Related services

Contact Us Today