Stop roof leaks permanently withour waterproofing system

Don't let water damage ruin your home. Our seamless membrane provides guaranteed protection.

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Roof Coating
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Worried about leaks? Seeing water stains on your ceiling?

Those faint brown patches on your ceiling could be the first warning signs of something much worse. Left unchecked, water ingress can lead to mould, structural rot, and thousands of dollars in damage, not to mention serious health risks for your family.

Guardian Seal is your first line of defence. Our advanced liquid membrane coating forms a seamless, watertight barrier that stops leaks at the source, and prevents new ones from forming. It's engineered for New Zealand's harsh weather, backed by a 10-year waterproofing warranty, and applied by certified professionals who know what to look for.

Whether you're already seeing signs of trouble or just want peace of mind before the next storm hits, Guardian Seal offers a fast, cost-effective solution, without the need for a full roof replacement.

Protect your home, your health, and your investment, before a drip becomes a disaster.

  • Stops leaks fast - Seals existing cracks, joins, and problem areas with a flexible waterproof membrane
  • Extends roof life - Adds 10+ years of protection without the cost or hassle of full replacement
  • Weatherproof protection - Engineered for New Zealand's UV, rain, wind, and coastal conditions
  • Cost-effective solution - Save thousands compared to reroofing, with no compromise on performance
  • Low maintenance - No flaking or peeling, just reliable long-term performance
  • Safe for rainwater harvesting - Non-toxic and suitable for collecting drinking water
  • 10-year warranty - Transferable, giving lasting peace of mind and added resale value
  • Flexible payments - Interest-free finance options available through Roofbuddy
  • Looks like new - Transforms tired, stained roofs into a sleek, modern finish with colour choice
  • Expert installation - Only trained, certified applicators used to ensure quality and durability

Guardian Seal FAQs

We know roof sealing and waterproofing can be a big decision. We're here to help.

Get a free quote
Guardian Seal isn't just paint — it's a full waterproofing system designed to protect your roof long-term. While paint merely improves appearance and typically fades or peels within 3-5 years, Guardian Seal forms a thick, flexible liquid membrane that bonds to your roof, sealing cracks, joins, and penetrations. It's fully watertight, UV resistant, and comes with a 10-year warranty. Unlike paint, which doesn't waterproof and often skips vital repairs, Guardian Seal includes a comprehensive service with cleaning, repairs, priming, and sealing — delivering real protection, not just cosmetic improvement.
Yes — finding hidden leaks is a key part of our process. Our team conducts a thorough visual inspection looking for subtle signs like discolouration, rust marks, soft spots, cracked tiles, or deteriorated sealant, especially around vulnerable areas like flashings and joins. We understand how moisture moves and can pinpoint trouble zones even when internal stains don't match leak sources. Our 4-step system — Clean, Prep, Prime, Seal — ensures all issues are exposed and fixed before coating. We replace broken parts, treat rust, repair joins, and seal everything before applying two coats of Guardian Seal to lock out future leaks.
Every Guardian Seal application comes with a 10-year written waterproofing warranty, giving you peace of mind that your roof is fully sealed and protected under normal weather conditions. The warranty is fully transferable if you sell your home, adding value to your property, and it's only valid when applied by certified professionals — ensuring top-quality workmanship. Should there be any performance issues with the membrane, the Guardian Seal team will repair or replace it at no cost in accordance with the warranty terms.

Get your roof protected!

Book your free roof assessment today

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