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08 6388 4492
Roof Mould Treatment Perth
Roof mould treatment in Perth
Perth roofs grow moss, lichen, algae and black fungus, worst on the shaded southern slopes that stay damp. It’s not just an eyesore. The growth holds moisture against the tiles, creeps into the pointing, and slowly lifts and breaks down the roof from the surface. We treat it to kill it at the root, then remove it, so it dies off properly instead of growing straight back from leftover spores.
We’ve been treating and cleaning Perth roofs for 15+ years and we carry $10M public liability.
Treatment vs a plain clean
This is the bit that matters. A standard pressure clean blasts the surface and makes the roof look better for a few weeks, but it leaves the spores behind and the moss is back before long. A proper treatment kills the moss, lichen, algae and fungus first, so it dies at the root, lifts cleanly, and is far slower to return. On a roof with heavy organic growth, that difference is months versus years.
Tile and metal roofs
We treat terracotta, concrete tile and metal roofs, matching the treatment and rinse pressure to the surface so nothing gets damaged. Once the dead growth is cleared, the roof’s real condition is visible, and we’ll flag any cracked tiles or failed pointing the moss had been hiding.
Treating before painting
If you’re getting the roof painted or restored, killing and removing organic growth is the first step. Coatings won’t bond over moss, and they slow regrowth once they’re on, so treatment and coating work well together.
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Benefits of Mould Treatment
Kills it, not just hides it
We treat the moss, lichen, algae and fungus so it dies off at the root, then remove it, rather than just blasting the surface and leaving spores behind to grow straight back.
Protects the roof
Moss and lichen hold moisture against the tiles and work into the pointing. Treating it stops it lifting tiles and breaking down the roof from the surface.
Slows regrowth
A proper treatment leaves the roof clean for far longer than a plain wash, especially on the shaded, damp slopes where growth takes hold first.
Tile and metal roofs
We treat tiled and metal roofs alike, at the right pressure for the surface so the roof isn't damaged in the process.
Our Mould Treatment Process
- 1
Assess the growth
We check how heavy the moss, lichen and mould is and where it's worst, usually the shaded southern slopes, and quote a fixed price.
The treatment is matched to how established the growth is. This prevents under-treating a heavily infested roof.
- 2
Apply treatment
A treatment is applied to kill the moss, lichen, algae and fungus at the root across the affected roof.
Killing it first means it lifts cleanly and doesn't regrow from leftover spores. This prevents regrowth within weeks of a surface-only clean.
- 3
Remove and rinse
The dead growth is cleared off and the roof rinsed down at a pressure suited to the surface.
Clearing the dead material leaves the roof clean and the tiles visible. This prevents a roof that's been treated but still looks filthy.
- 4
Check the roof
With the roof clean, we point out any cracked tiles, failed pointing or other wear the growth was hiding.
Moss often hides the faults underneath it. This prevents small problems staying out of sight until they leak.
FAQs
How much does roof mould treatment cost in Perth? ⌄
It depends on the roof size and how heavy the growth is. Call 08 6388 4492 or request a quote for a fixed price. If you're treating ahead of a paint or restoration, we roll it into the overall job.
What's the difference between mould treatment and a roof clean? ⌄
A clean blasts the surface. A treatment kills the moss, lichen and fungus at the root first so it dies off and is far slower to come back. For heavy organic growth, treatment lasts much longer than a wash alone.
Does the moss and mould come back? ⌄
Not as fast after a proper treatment. It can return over time in shaded, damp spots, and a roof coating slows it further. A surface-only clean that leaves spores behind grows back within weeks.
Is it safe for my roof and garden? ⌄
We treat at the right strength and pressure for the roof type so the surface isn't damaged, and we take care around gardens and downpipes when rinsing off.
Do I need treatment, cleaning, or a full restoration? ⌄
Heavy organic growth needs treatment to kill it properly. If the roof's just dirty, a clean does it. If it's also faded with failed pointing, that's a restoration. We'll tell you which after a look.
Related Services
Explore more of what we offer Perth homeowners
Mould Treatment across Perth
We provide mould treatment to suburbs right across the Perth metro area. Find yours:
- Applecross
- Armadale
- Atwell
- Aubin Grove
- Baldivis
- Banjup
- Bassendean
- Beckenham
- Belmont
- Bentley
- Bertram
- Bicton
- Bull Creek
- Byford
- Canning Vale
- Cannington
- Claremont
- Como
- Cottesloe
- Dianella
- East Fremantle
- East Victoria Park
- Ferndale
- Fremantle
- Gosnells
- Halls Head
- Hammond Park
- Hillarys
- Innaloo
- Jandakot
- Jarrahdale
- Joondalup
- Kalamunda
- Karrinyup
- Kelmscott
- Kwinana
- Langford
- Leederville
- Lesmurdie
- Lynwood
- Mandurah
- Maylands
- Meadow Springs
- Melville
- Midland
- Midvale
- Morley
- Mount Lawley
- Padbury
- Parkwood
- Port Kennedy
- Redcliffe
- Rivervale
- Rockingham
- Rossmoyne
- Safety Bay
- Scarborough
- Secret Harbour
- Serpentine
- Shelley
- Shoalwater
- Sorrento
- South Perth
- Success
- Swan View
- Thornlie
- Victoria Park
- Warnbro
- Wellard
- Welshpool
- Willetton
- Woodvale
- Yangebup
What Perth Homeowners Say
What Perth Homeowners Say
Real feedback from verified Google customers across Perth metro area.
- ★★★★★ 5.0
“Roof Restorers carried out a full roof restoration on our roof in safety bay . The guys were quick at quoting the job , planning the work in and executing the job . The team work to a high standard and keep you up to date through out the process ! Thank you Jack and Ryan”
- ★★★★★ 5.0
“Excellent workmanship, communication and attention to detail. I am very happy with my roof restoration and would have no hesitation in recommending Roof Restorers Perth.”
- ★★★★★ 5.0
“Ryan and Jack have done an amazing job on restoring numerous roofs for us. They worked very hard to finish the job on time, with minimal clean up. We are very happy with the job and would highly recommend to anyone. Thank you”
Many customers find us through neighbour recommendations
Ready to Get Started?
Contact Roof Restorers Perth today for a free consultation and quote. Our expert team is ready to discuss your mould treatment needs.
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Important Disclaimer
Please read carefully before proceeding
The information on this page is provided for general guidance only. It is not intended to be relied upon and does not form part of any offer, quotation, representation, or binding agreement.
No reliance
By using this website, you acknowledge that you do not rely on any descriptions, prices, examples, images, timelines, warranties, outcomes, or statements shown when deciding to engage Roof Restorers Perth. Only a final written agreement accepted by both parties governs the works undertaken.
Prices & scope
Any prices or examples are indicative only and based on standard assumptions and satellite measurements. Final scope and fixed pricing are not guaranteed and Roof Restorers Perth reserves the right to not proceed with the quoted work at any time. Variations may arise due to roof condition, access, hidden defects, or unforeseen circumstances and will be communicated for approval before proceeding.
Service availability
Roof Restorers Perth does not guarantee that any service described on this website can or will be offered. Services are subject to roof condition, access, safety considerations, weather, location, material availability, regulatory requirements, and operational capacity. We reserve the right to decline, delay, modify, or discontinue any service at our discretion.
Timeframes
Any timeframes or completion estimates are approximations only and are not guaranteed. Delays may occur due to factors outside our control, including weather and material availability. No liability is accepted for delays or related consequences.
Accuracy of information
Information is provided in good faith but may be incomplete, outdated, or subject to change without notice. To the maximum extent permitted by law, no liability is accepted for errors, omissions, or reliance on website content.
Warranties
Any references to warranties are summaries only. Manufacturer warranties are provided solely by the manufacturer and are subject to their own terms, conditions, exclusions, eligibility requirements, maintenance obligations, and claims procedures. Roof Restorers Perth provides only the workmanship guarantee expressly stated in the final written agreement. No other warranties are implied.
Outcomes & appearance
Final results vary based on roof age, condition, substrate, prior coatings, repairs, and environmental factors. No guarantee is given of a "like-new" or uniform finish. Painted metal or tin roofs may show patchiness, uneven gloss, or visual variation inherent to airless spray application and this is not considered a defect.
Images & examples
Photos, videos, and examples are illustrative only and do not represent guaranteed or typical outcomes.
Customer responsibilities
Customers must provide safe access, water, electricity, and reasonable site preparation. Minor dust, overspray, staining, or disturbance may occur as part of normal works.
Limitation of liability
To the maximum extent permitted by law, Roof Restorers Perth excludes liability for indirect, incidental, or consequential loss, including loss of use, enjoyment, income, or profit.
Prevailing terms
If there is any inconsistency between this website and the final written agreement, the written agreement prevails.
Additional Important Information
Additional Important Information- • All services are provided in accordance with industry standards and are subject to the condition, age, design, and prior treatment of the roof. Roof restoration and roof coating are maintenance services and do not constitute structural repair or replacement.
- • Any references to lifespan, durability, performance, or appearance are indicative only and may vary depending on environmental conditions, roof materials, prior coatings, ventilation, drainage, ongoing maintenance, and exposure to weather.
- • Where coatings or membranes are applied, any stated warranty period refers to the manufacturer's warranty only, subject to the manufacturer's terms, conditions, exclusions, and assessment procedures. Roof Restorers Perth does not provide an independent long-term warranty on coating products beyond workmanship obligations expressly stated in the contract.
- • Fading, chalking, colour variation, or general weathering are normal characteristics of roof coatings and do not constitute defects.
- • This information is provided for general guidance only and does not exclude or limit any rights available under Australian Consumer Law.
Note: Acceptance of our quotation or commencement of works constitutes acceptance of our standard Terms and Conditions. All warranty coverage is subject to full payment and compliance with the terms outlined in your work agreement.
