Waterproofing · Auckland

Waterproofing in Auckland, engineered to specification

Waterproofing in Auckland has one job: keep water out, permanently. MRS is a specialist membrane and liquid-waterproofing team working across the Auckland region — flat roofs, decks, balconies, planters and podiums. Every system is designed to the substrate, laid by licensed applicators, and flood-tested before we call it done.

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Why Auckland waterproofing fails — and how we prevent it

Auckland's driving rain and long damp spells punish any weak detail — a poorly lapped seam, a neglected upstand, the wrong membrane for the fall. We don't patch symptoms. We diagnose the detail that's letting water in, specify the correct system for it, and install to manufacturer spec so the warranty actually holds.

What we waterproof

Flat & low-slope roofs

TPO, torch-on and liquid systems, specified to the substrate and fall.

Decks, balconies & terraces

Waterproofing over living spaces, where a failure shows up inside fast.

Podiums, planters & retaining

Heavy-duty membrane build-ups under landscaping and traffic.

Failed & leaking membranes

Remedial waterproofing — find the real source, repair it, flood-test it.

Our process

  • Inspect the roof and diagnose the detail letting water in
  • Specify the correct system for the substrate and fall
  • Prepare the substrate properly — the step most failures skip
  • Install to manufacturer spec with licensed applicators
  • Flood-test before we call it done
  • Hand over with documentation and warranty

Part of our full membrane roofing offering

Waterproofing is what every system we install is built to do. See the full range of membrane roofing systems — TPO, torch-on, liquid waterproofing, warm roofs, and leak repairs.

Waterproofing FAQ

Auckland waterproofing — common questions

  • How much does waterproofing cost in Auckland?
    It depends on the area, the substrate, and the right system for the job — so MRS quotes after a free site visit rather than guessing a number. The visit checks slope, drainage, and the condition of any existing membrane; the written quote follows within 5 working days.
  • Why do waterproofing membranes fail in Auckland?
    Auckland's driving rain and long damp spells punish weak details — a poorly lapped seam, a neglected upstand, or the wrong membrane for the fall. Most failures start small and grow. MRS diagnoses the detail letting water in, specifies the correct system for it, and installs to manufacturer spec so the warranty holds.
  • What areas of a building do you waterproof?
    Flat and low-slope roofs, decks and balconies over living spaces, podiums, planters and retaining structures, and wet-area or remedial work on existing failed membranes. MRS works across the Auckland region as standard.
  • Do you fix existing leaks or only new installs?
    Both. Remedial waterproofing on failed systems is core work — MRS finds the true source of a leak, advises repair versus re-roof honestly, and flood-tests the fix before hand-over.
  • How long does a waterproofing membrane last?
    Correctly specified and installed, a quality membrane system is a long-term asset — MRS installs carry a 15 or 20-year manufacturer system warranty depending on the membrane, plus a 5-year MRS workmanship warranty. Poor substrate prep is what shortens life, which is why MRS never skips it.
  • Is the waterproofing flood-tested before hand-over?
    Yes. Every install is flood-tested and handed over with documentation — a Producer Statement (PS3), the manufacturer system warranty, the MRS workmanship warranty in writing, and photo records of the prep, flashings, upstands and flood-test.
Next step

Got a flat roof, deck or podium that needs to stay dry?

Talk to us. We'll inspect the roof, recommend the right waterproofing system, and issue a written quote — free.

Book a free roof checkOr send one photo
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