1. Clean.
Chemical treatment and a water blast remove moss, mould, and grime.
Guardian Seal roof restoration
Restore it. Don't replace it.
Your roof is fading, leaking, or showing its age. A full reroof isn't your only option, and for most homes, it isn't the smart one either.
Guardian Seal's liquid membrane system is designed to protect vulnerable roof areas and extend roof life. For suitable roofs, restoration can be a lower-cost alternative to full replacement. Eligible Guardian Seal restorations are backed by a 10-year warranty.
Your final scope and price are confirmed after your free assessment. Quotes are typically provided within 24–48 hours.
Get your free roof assessment
Stop small issues growing
That water stain isn't nothing
A faded roof is annoying. A leaking one is different. Left unchecked, it works quietly: a stained ceiling today, timber rot behind the wall in a year, a big repair bill in three.
Guardian Seal is built for the roof in between: not brand new, not falling apart. If yours is faded, ageing, or showing rust and cracks, restoration is usually the lower-cost fix. The right call for your roof depends on its actual condition, which is what your free assessment is for.
The process
How it works
Four steps, without a full strip-off where restoration is suitable.
2. Prep & repair.
Agreed repair areas are addressed before coating begins.
3. Prime.
A primer ensures the coating bonds and lasts.
4. Seal.
The agreed coating system creates a flexible, UV-resistant membrane.
Honest assessment
Is your roof a candidate?
Not every roof should be coated, and we'll tell you if yours shouldn't be. Restoration suits a roof with a sound structure but a failing surface. It's the wrong call if the structure itself is compromised, since coating over that just hides a bigger problem.
Every quote starts with an assessment of your actual roof, not a generic price. If restoration isn't right, we'll say so in writing and point you elsewhere.
Good candidate signs
- Faded, chalky, or patchy colour
- Surface rust or oxidation
- Hairline cracks between tiles
- Moss, mould, or lichen buildup
- Minor leaks at joins or flashings
- Not recoated in 8–10+ years
We'd likely say no if
- The roofline sags or moves
- Rot goes beyond the surface
- Leaks caused major internal damage
- The roof is at structural end of life
We'll tell you directly during the assessment, before any coating goes ahead.
Made for New Zealand
For common NZ roof types
Each material has its own prep requirements. One system doesn't fit all roofs.
- Decramastic. A common re-coat candidate; needs rust treatment at fixings and joins first.
- Concrete & clay tile. Seals hairline cracks and restores colour without disturbing sound tiles.
- Metal (corrugated iron, COLORSTEEL®, Zincalume®). Addresses rust, oxidation, and chalking with a flexible membrane.
- Butynol & flat/membrane roofs. May be suitable for an overcoat system after assessment.
- Asbestos roofing. May be suitable for a restoration approach that avoids unnecessary disturbance. Mention it when you enquire.
Protection that lasts
Real waterproofing, not paint
Guardian Seal is a flexible membrane system designed to protect the roof surface, including vulnerable cracks and joins. The agreed scope and warranty details are confirmed after assessment.
- 10-year warranty for eligible Guardian Seal restorations; your project warranty confirms the available cover, term and exclusions
- Suitable for rainwater homes when collection is managed during works
- UV-resistant and flexible, built to move with the roof
Clear, tailored pricing
What it costs
Cost depends on roof condition, material, access, and region. Your itemised quote confirms the cleaning, preparation, repairs and coating system for your roof. Prices are confirmed in writing and exclude GST unless stated otherwise.
Flexible payment plans may be available, subject to approval and the applicable finance terms.
Local coverage
Where we work
Auckland · Wellington · Hamilton · Tauranga, our busiest areas.
We also cover the wider Waikato, Bay of Plenty, Manawatu-Whanganui, Hawke's Bay, Northland, and Taranaki. Get in touch to confirm your area.
A practical place to start.
The Guardian Seal difference
Why homeowners choose Guardian Seal
A clear assessment, a roof-specific scope, and the details you need before making a decision.
Start with your roof.
We assess the condition before recommending a restoration.
See the scope.
Your quote outlines the preparation, repairs and coating system.
Get it in writing.
Your project documents confirm the scope, price and warranty details.
Learn more about Guardian Seal through our detailed guides.
Helpful answers
Frequently asked questions
Paint focuses on appearance. Guardian Seal is a liquid membrane system designed to protect the roof surface; warranty details are confirmed after assessment.
We only do coating, not painting. Paint refreshes the look of a roof but doesn't stop water getting in. Our membrane is a different category of product, built to seal and protect the roof, not just recolour it.
They describe the same work. Both mean cleaning, repairing, and recoating an existing roof rather than replacing it. We use 'restoration' most often, but if you're searching for 'refurbishment,' you're after the same service.
Our team does a thorough visual inspection, checking for discolouration, rust marks, soft spots, and deteriorated sealant, especially around flashings and joins. Identified repair areas are addressed as part of the agreed scope before coating goes on.
Yes. This is common on older pressed metal tile roofs, especially ones around 15 to 20 years old. We'll check the condition of the existing coating first to make sure a fresh application will bond properly, whether you're in Auckland, Wellington, or anywhere else in New Zealand.
Restoration is usually a one-off project, but we recommend a maintenance check every few years afterward to catch small issues early. If your roof only needs a clean or a minor repair rather than a full restoration, let us know and we'll advise honestly on what it actually needs.
Eligible Guardian Seal restorations include a 10-year warranty. We’ll confirm the cover after assessment; your project warranty sets out the exclusions and claim process.
Some asbestos roofs may be suitable for a restoration approach that avoids unnecessary disturbance. We’ll assess the roof and confirm the proposed method, scope and any warranty eligibility in writing.
Sometimes, and we'll tell you honestly if that's the case. Restoration suits roofs with a sound structure but a failing surface, things like rust, cracks, fading, or minor leaks. If the underlying structure is genuinely compromised, we'll recommend repair or reroofing instead.
Most suitable projects are completed in around 2–4 working days. Timing is an estimate and depends on roof size, preparation requirements and weather.
It depends on your roof's size, material, condition, and access. We’ll provide a written quote for your actual roof after assessment; unless stated otherwise, quoted prices exclude GST.
Flexible payment plans may be available, subject to approval and the applicable finance terms. We’ll explain the available options with your quote.
Yes. Auckland, Wellington, Hamilton, and Tauranga are our busiest areas, but we also cover the wider Waikato, Bay of Plenty, Manawatu-Whanganui, Hawke's Bay, Northland, and Taranaki regions. Get in touch and we'll confirm availability for your area.
Get started
Get started in three steps
- 1Tell us about your roof.Location, material, and what's happening.
- 2Speak with a specialist.We confirm if restoration is the right fit.
- 3Get your quote.Itemised, usually within 24–48 hours.