Retaining Wall Waterproofing Auckland
Waterproof membrane and tanking systems for Auckland retaining walls — keep ground water out of garages, basements and living spaces.
Retaining walls hold back soil that is often saturated with water. Without proper waterproofing on the retained side, that water passes straight through the wall — into garages, basements, workshops and living areas on the other side.
Membrane Roofing Applicators applies retaining wall waterproofing across Auckland, sealing the wall against ground water and, where required, integrating drainage to relieve the pressure behind it.
Retaining Wall Waterproofing Solutions
We waterproof new retaining walls during construction and remediate existing walls that are letting water through.
- Positive-side membrane waterproofing for new walls
- Internal (negative-side) tanking for existing walls
- Cavity drainage systems behind the wall
- Sealing of construction joints and cracks
- Waterproofing for garage and basement retaining walls
Signs of a Failing Retaining Wall
Water coming through a retaining wall shows up as:
- Damp or wet patches on the interior face
- Water trickling through cracks or joints after rain
- White efflorescence salts on the concrete or block
- Mould, musty smell or persistent damp
- Pooling water at the base of the wall
Seal the Wall, Manage the Water
Effective retaining wall waterproofing does two things: it seals the wall with a durable membrane and it manages the ground water with drainage so pressure doesn't build behind it. We assess both and specify the right combination for your site.
Frequently Asked Questions
Can you waterproof a retaining wall from the inside?
Yes. When the retained (outer) side can't be excavated, we use internal negative-side tanking systems combined with cavity drainage to keep the interior dry.
My garage retaining wall gets wet when it rains — can you fix it?
Absolutely. This is a common Auckland problem. We seal the wall and manage the ground water behind it so your garage or basement stays dry.
Do you waterproof new retaining walls during a build?
Yes. Waterproofing a wall during construction, on the positive side, is the most effective approach, and we work with builders and homeowners to get it right the first time.
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