Planter boxes hold wet soil against walls and slabs permanently. Without the right membrane, drainage and root protection, they become a constant source of leaks, efflorescence and stained render.
We waterproof new and existing planters and retaining walls for homes, apartments and commercial podiums across Sydney.
Signs you need planter box waterproofing
- Staining or efflorescence on walls below planters
- Leaks into rooms or garages beside planters
- Cracked or bulging planter walls
- Plants struggling due to poor drainage
- Roots visible through joints
- Retaining walls weeping after rain
A complete planter system
- Membrane — suitable for continuous soil contact, applied to walls and base
- Root protection — root-resistant membranes or barriers to stop roots damaging the system
- Protection board — to protect the membrane from soil, stones and tools
- Drainage cell and geotextile — to move water to the outlet without clogging
- Outlet — sized and positioned so the planter never waterlogs
Retaining walls
Retaining walls that adjoin living spaces or are visible from the garden should be waterproofed on the soil side before backfilling, with drainage at the base of the wall. For existing walls we can offer negative-side treatments where excavation is not possible.
Our planter box waterproofing process
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1
Assess
We inspect the planter or wall, drainage and adjoining spaces.
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2
Empty & prepare
Soil is removed and surfaces cleaned and repaired.
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3
Membrane & root barrier
Membrane and root protection applied to walls and base.
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4
Drainage & protection
Drainage cell, geotextile and protection boards installed.
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5
Test & refill
Flood test before soil and plants are reinstated.
Why choose us for planter box waterproofing
Root-resistant systems
Drainage that won't clog
Protection against efflorescence staining
Solutions for new and existing planters
Retaining wall waterproofing
Written warranty
