Waterproofing for Bathrooms, Laundries, and Internal Wet Areas
Certified membrane systems for interior spaces that demand watertight performance.
Certified systems for interior protection
Internal wet areas require absolute reliability when it comes to waterproofing. At MPM Waterproofing, we install compliant liquid membrane systems for bathrooms, laundries, ensuites, and other moisture-prone areas across Auckland and Northland, ensuring a durable, watertight seal beneath tiles and finishes.
We follow strict surface prep, priming, and curing protocols to align with the NZ Building Code and AS/NZS 4858 standards. Our licensed applicators work closely with tilers, builders, and project managers to get the sequencing right, avoid costly rework, and deliver a high-quality finish every time.
Whether you're building new or renovating, we'll protect the areas that matter most.
Applications
Residential bathrooms and ensuites
Waterproofing for showers, floors, walls, and wet wall junctions.
Toilets and powder rooms
Prepares internal floor and wall junctions for finishes and long-term use.
Laundries and utility rooms
Protects against appliance overflows, damp, and long-term water exposure.
Commercial bathrooms and locker rooms
Durable membrane systems designed for high-traffic wet environments.
Apartment and hotel fit-outs
Fast-curing systems for multi-unit developments and tight project timelines.
Renovation and remedial work
Re-waterproofing or correcting failed internal membranes.
Our Process
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We inspect surface condition, substrate type, and moisture levels at your Auckland site to ensure suitability for membrane application and identify any issues before work begins.
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We select a certified internal membrane system that meets NZ Building Code and AS/NZS 4858 requirements and aligns with your finishes, tiler schedule, and project timeframe. A detailed quote and scope of work will be provided before any work begins.
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We clean, dry, and prime the area, reinforcing all critical junctions, outlets, and penetrations in accordance with system specifications.
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Our certified applicators apply multiple coats with correct curing intervals between each coat, delivering a fully watertight, tile-ready finish.
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QA inspection forms, site photos, PS3 producer statements, and warranty documents are prepared on completion, ready for sign-off before the next trade steps in.
NZBC-Compliant Systems
All installs meet or exceed New Zealand Building Code.
Full System Warranties
Backed by manufacturers and our own QA process.
Licensed & Certified
Fully trained installers using approved systems.
30+ Years of Experience
Hands-on waterproofing expertise across all sectors.
Clear, Reliable Communication
We turn up when we say we will and keep you informed.
Trusted by Top Builders
We work with leading contractors and developers.
Let’s Talk Waterproofing
Whether you’re planning a new project, looking for technical advice, or need support on a current job, the MPM Waterproofing team is here to help. Reach out to book a site visit, request a quote, or speak with one of our team members.
Other Waterproofing Services We Offer
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MPM Waterproofing protects foundations, basements, lift pits, and other below-grade structures across Auckland and Northland with high-performance tanking systems. Our installations block groundwater pressure, prevent moisture ingress, and safeguard concrete for long-term structural durability.
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MPM installs premium sheet and liquid roofing membranes designed to withstand New Zealand’s harsh climate. Our roofs provide reliable leak protection, strong UV resistance, and long service life with minimal ongoing maintenance.
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Our membrane decking solutions create dry, durable living spaces for balconies, terraces, and walkways. MPM combines precise installation with visually clean finishes to ensure every surface remains watertight and built for daily use.
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MPM Waterproofing specialises in podium-level systems that support landscaping, paving, and recreational areas. Our solutions offer strong waterproofing performance, efficient drainage, and long-term protection for complex outdoor spaces.
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MPM designs and installs green roof membranes that promote healthier buildings and sustainable environments. Our systems manage drainage, protect against root intrusion, and maintain waterproof integrity beneath soil, planting, and irrigation layers.
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A warm roof system keeps all insulation above the substrate, creating a continuous thermal barrier. MPM installs warm roof assemblies that prevent condensation, improve energy performance, and extend the lifespan of the roofing structure.
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MPM provides high-quality joint sealing for concrete, cladding, and façade systems. Our sealants protect expansion and control joints from moisture penetration, improving structural performance and reducing long-term maintenance issues.
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Our liquid-applied membranes create seamless, flexible waterproofing that adapts to complex shapes and details. MPM uses advanced products for roofs, decks, planters, and remedial work where a continuous protective coating is essential.
Approved Products, Suppliers & Industry Affiliations
