Roof Cleaning Wellington | Moss & Mould Removal | Metro Water Blasting
Professional roof cleaning Wellington
Residential & Commercial · Wellington

Professional Roof Cleaning in Wellington

Expert moss, mould and lichen removal across all Wellington suburbs, Lower Hutt, Upper Hutt, Porirua and the Kāpiti Coast. Fully insured, height certified and available 7 days — free no-obligation quote in minutes.

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Competitive Rates
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Wellington's Roof Cleaning Specialists

Wellington's Trusted Roof Cleaning Experts

Wellington's notoriously wet and windy climate is one of the harshest in New Zealand for roofs. The combination of high annual rainfall, persistent southerly winds and salt-laden air from Cook Strait creates the perfect conditions for moss, lichen and mould to build up — often faster than homeowners realise. Metro Water Blasting's local Wellington team provides professional roof washing and moss spray treatment across every suburb — from Kelburn and Karori to Island Bay in the south, Khandallah and Johnsonville in the north, and across to Lower Hutt, Porirua and the Kāpiti Coast. Get a free, no-obligation quote today.

Fully Insured
Height Certified
Available 7 Days
All Roof Types
Wellington Region Wide
Roof washing Wellington moss and mould removal
Instant Results

Roof Washing Wellington

Wellington's southerly storms drive moisture deep into roof surfaces, and the city's hilly topography means many properties in Karori, Brooklyn and Kelburn sit in sheltered, shaded positions where growth accumulates quickly. Our roof washing service removes all moss, mould and lichen for immediate results using a safe low-pressure soft-wash method — no high-pressure blasting that could damage tiles or iron.

Whether it's a pre-sale clean in Thorndon, a post-inspection wash in Lower Hutt or a commercial property in Porirua, our height-certified and fully insured Wellington team has you covered.

Moss, mould, lichen and algae removed instantly
Soft-wash technique — safe for all Wellington roof types
Height certified & fully insured Wellington crew
Ideal pre-sale, pre-paint or post-inspection clean
Residential & commercial — Wellington region wide
Roof moss and mould spray treatment Wellington
Gentle & Effective

Roof Moss & Mould Treatment Wellington

Our moss and mould spray treatment is a highly effective low-intervention option for Wellington homeowners. A biocide is applied to your roof — no pressure washing required — and slowly kills moss, mould and lichen at the root over 6 months. Wellington's reliable rainfall then washes away the dead growth naturally, leaving your roof clean without any disruption.

Given Wellington's climate, annual treatment is strongly recommended for properties in shaded or exposed hillside suburbs like Karori, Mornington and Eastbourne where Cook Strait wind and moisture drive rapid moss regrowth year after year.

No pressure washing or roof walking required
Biocide kills moss, mould and lichen at the root
Wellington's rain washes dead growth away naturally
Often applied from ladder or ground — minimal disruption
Eco-friendly & safe for Wellington gardens and waterways
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Why Choose Metro Wellington

Why Wellington Homeowners Choose Metro

From Karori to the Kāpiti Coast, Wellington homeowners and businesses trust Metro for roof cleaning that is safe, thorough and competitively priced.

10+ Years Wellington Experience

We've cleaned thousands of Wellington roofs and know every suburb, every wind direction and every roof type the region throws at us.

Fully Insured & Height Certified

Professional Wellington crew only — no sub-contractors, no shortcuts on your property.

Available 7 Days

We work around your schedule including weekends across the Wellington region.

Free No-Obligation Quotes

Fast, free and zero pressure — your Wellington quote ready in minutes.

Eco-Friendly Solutions

Biodegradable products safe for Wellington's gardens, pets and the harbour environment.

All Wellington Roof Types

Tiles, iron, asphalt, membrane — the right method for every Wellington home, old character villa or new build.

Customer Reviews

What Our Wellington Customers Say

Don't just take our word for it. Here is what Wellington homeowners from Karori, Johnsonville, Lower Hutt, Porirua and beyond say after booking Metro.

Wellington's Roof Cleaning Experts

Ready for a Cleaner Wellington Roof?

Professional roof cleaning, moss removal and biocide treatment across Wellington, Lower Hutt, Upper Hutt, Porirua and the Kāpiti Coast. Fully insured, available 7 days — free quote in minutes.

Free No-Obligation Quote

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We respond to all enquiries same day. Lines open 7 days.

Roof Cleaning Wellington FAQ
Roof Cleaning Wellington

Frequently Asked Questions

Everything you need to know about professional roof cleaning in Wellington, answered honestly.

Roof cleaning is the professional removal of moss, lichen, algae, and debris from your roof surface. In Wellington, the combination of strong winds, salt air, and high rainfall creates ideal conditions for moss and lichen to take hold quickly. Left untreated, these growths break down roofing materials, trap moisture, and can lead to costly repairs. Regular cleaning protects your roof, extends its lifespan, and keeps your home looking well maintained.
Every 2 to 3 years is a reasonable guideline for most Wellington properties. Roofs that are heavily shaded, surrounded by trees, or in lower-lying areas that retain moisture may need attention more frequently. If you can see visible moss, lichen, or dark staining beginning to spread, it is worth booking a clean sooner to prevent it from becoming a bigger problem.
Soft washing uses low pressure combined with specialist cleaning solutions to safely remove moss, lichen, and algae without damaging your roofing material. It is the preferred method for most Wellington roofs including concrete tiles, terracotta, metal, and asphalt. High-pressure washing can crack tiles, strip protective coatings, and force water under roofing materials, so soft washing is almost always the safer and more effective choice.
Yes. Moss and lichen are more damaging than they look. Moss holds moisture against the roof surface, accelerating the breakdown of tiles and coatings. Lichen goes a step further by physically attaching to and etching into the surface of roofing materials. Over time both can cause cracking, porosity, and premature deterioration. Wellington's freeze-thaw cycles in winter make this worse, as trapped moisture expands when it freezes and damages tiles from within.
Professional soft washing will not damage your tiles. The risk of damage comes from using excessive pressure or the wrong chemicals, which is why it matters who you hire. Some roof warranties specify that only approved cleaning methods should be used, and high-pressure washing can void coverage. If you are unsure about your warranty terms, we are happy to advise before we start any work.
Pricing depends on the size and pitch of your roof, the roofing material, and the level of moss or lichen growth. We provide transparent, obligation-free quotes upfront so there are no surprises on the day. Get in touch for a free assessment and an accurate price for your specific Wellington property.
Yes. Moss and algae trap moisture against the roof surface which gradually breaks down roofing materials and can lead to cracks and water ingress. In Wellington where winters can be harsh, this moisture damage accelerates. Removing these contaminants regularly is one of the most cost-effective ways to protect your roof and reduce the risk of leaks developing.
You can slow regrowth significantly with the right aftercare. Applying a post-treatment inhibitor after cleaning is one of the most effective options. Installing zinc or copper strips along the roof ridge is another long-term solution as rainwater passing over the metal releases natural compounds that inhibit moss and algae. For Wellington properties surrounded by trees or in shaded areas, these treatments make a noticeable difference between cleans.
Most Wellington residential roof cleans take between two and five hours depending on the size of the roof and how heavily it is affected. We will give you a realistic time estimate when we provide your quote so you can plan your day accordingly.
Look for a company with proper insurance, verified local reviews, and technicians who take time to assess your roof before quoting. Transparent pricing, eco-friendly cleaning solutions, and a clear explanation of the method they use are all good signs. We are happy to answer any questions before you commit and our goal is to earn your trust through the quality of our work.

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