Internal Waterproofing
Water stays where it should.
Professional waterproofing for internal wet areas in homes and commercial buildings.
Wet areas done properly the first time.
Internal waterproofing is hidden work that decides whether a bathroom lasts a decade or leaks into the room next door. Master Seal prepares surfaces, treats junctions and penetrations, and applies membrane systems to the required build.
We work on new bathrooms and renovations as well as remedial jobs where an existing membrane has failed. Where a leak is already occurring, we assess the likely point of water entry before recommending a scope.
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Our process
How the work is carried out.
Inspection & Assessment
We review the substrate, falls, drainage and any existing damage or membrane failure.
Surface Preparation
Surfaces are cleaned and prepared, and unsound material is removed so the membrane can bond.
Detailing & Bond Breakers
Junctions, corners, penetrations and drains are detailed before the main membrane goes on.
Membrane & Handover
Membrane coats are applied to the specified build and left to cure before the next trade.
What we cover
Applications
- Bathrooms
- Showers
- Laundries
- Kitchens where applicable
- Wet Areas
- Internal Remedial Waterproofing
- Residential
- Commercial
Benefits
- Protects structure, framing and finishes
- Reduces the risk of costly rectification later
- Suitable for new work and renovations
- Remedial options for failed membranes
- Residential and commercial buildings
- 10-year warranty on qualifying work
Common questions
Good to know before you book.
Need internal waterproofing?
New bathroom, renovation or an existing leak — send us the details.
