Local ServiceRoof Cleaning in Thornlie
Professional roof cleaning services for Thornlie homes and businesses. Licensed, insured, and backed by Dulux 15-year manufacturer warranty on materials. Suitable for tiled roofs and metal roofs across Thornlie.
65+ completed roofing jobs on record in Thornlie
65+ completed roofing jobs on record in Thornlie
Licensed & Insured
Dulux Accredited
5 Stars
Free Quotes
Why Choose Us for Roof Cleaning in Thornlie?
Moss and lichen cling hard to Thornlie roofs because of the mature tree canopy, eucalyptus, jacaranda, and peppermint trees create shade that blocks the UV light that would inhibit organic growth. High-pressure cleaning at 4500psi removes decades of accumulated grime, moss, and lichen, and we follow with industrial-strength biocide treatment that kills growth at the root level. South and east-facing roof sections under heavy canopy are usually the worst affected. Regrowth happens quickly under Thornlie's canopy and moisture conditions, typically within 2-3 years, so cleaning isn't a one-off. Most homes benefit from annual cleaning or biannual if the canopy is particularly dense. It's preventative work that stops moss from retaining moisture against the tiles and accelerating deterioration.
Roof cleaning in Thornlie means removing decades of accumulated grime not just surface dirt but established moss, lichen, algae, and tannin staining from the eucalyptus and jacaranda. High-pressure cleaning removes most of it, but the water spray can dislodge loose mortar on already-compromised roofs, so it needs careful technique on Thornlie's aging stock. Biocide treatment after cleaning slows regrowth. Every two years is sensible maintenance for homes under canopy.
Roof restoration in Thornlie for ageing 1970s and 1980s homes, including repointing and tile renewal. Dulux Acratex accredited, 15 year warranty. Free quotes.
What's Included
- Free Satellite Quote - We measure and assess your roof from professional satellite imagery, no on-site inspection needed
- Fixed-Price Quote - No hidden costs, transparent pricing before work begins
- Professional Service - Licensed tradespeople with years of Thornlie experience
- Premium Materials - Dulux Acratex products with 15-year manufacturer warranty
- Quality Guarantee - 12-month workmanship warranty on all services
Local Thornlie Expertise
Recent Roof Work in Thornlie
A sample of real jobs from our records in Thornlie.
Full roof restoration
338 m² · Centurion · Charcoal · 2020
Roof repointing
326 m² · Centurion · Charcoal · 2022
Benefits of Roof Cleaning for Thornlie Properties
Strips moss, lichen and grime
Perth roofs grow moss and black lichen in the shaded, south-facing spots. We pressure-clean it all off and get the roof back to its actual colour.
Protects the roof, not just the look
Moss holds moisture against the tiles and works into the joins. Clearing it off stops it lifting tiles and rotting the pointing, so the roof lasts longer.
The right first step before painting
If you're getting the roof painted or restored, it has to be cleaned back to a sound surface first. We do that properly so the coating actually sticks.
Fully insured, careful work
We're covered by $10M public liability and we clean at the right pressure for your roof, so tiles and coatings don't get damaged in the process.
Our Roof Cleaning Process in Thornlie
- 1
Quote and check
We look at the roof's size, pitch and how much growth is on it, then give you a fixed price.
Why it matters: A quick check means an accurate price, not a guess.
- 2
Clear the loose debris
Leaves, sticks and built-up debris come off the roof and out of the valleys and gutters first.
Why it matters: Clearing debris first lets the wash get at the actual surface.
- 3
High-pressure clean
We work top to bottom with the right pressure for the roof type, lifting off moss, lichen, dirt and chalking.
Why it matters: Correct pressure cleans hard without driving water under the tiles.
- 4
Check the roof over
With the roof clean, any cracked tiles, failed pointing or rust shows up clearly, and we'll point out anything that needs attention.
Why it matters: A clean roof is the only time you can really see its condition.
Roof Cleaning in Thornlie - FAQs
Do you provide roof cleaning in Thornlie? ▾
Yes. Roof Restorers Perth provides roof cleaning across Thornlie and nearby Sorrento, Applecross, Port Kennedy. Roof restoration in Thornlie for ageing 1970s and 1980s homes, including repointing and tile renewal. Dulux Acratex accredited, 15 year warranty. Free quotes. Call 6388 4492 for a free, no-obligation quote.
Will pressure washing damage my old roof? ▾
High-pressure cleaning at the right angle and pressure can dislodge loose tiles or mortar on aged roofs. We use proper technique. On really compromised roofs we recommend softer approaches. We assess first.
Do I need cleaning if I'm planning full restoration soon? ▾
No, the restoration includes high-pressure cleaning as part of it. Cleaning alone buys you a year or two of improved appearance and slows regrowth. If restoration is within a year, skip the cleaning and just do the full job.
How much does roof cleaning cost in Perth? ▾
It depends on the size and pitch of the roof and how much moss and growth is on it. Call 08 6388 4492 or request a quote for a fixed price. If you're cleaning ahead of a paint or restoration, we factor it into the overall job.
Can you pressure-clean a metal or Colorbond roof? ▾
Yes. We clean metal and Colorbond roofs as well as tiled ones, at a pressure suited to the surface so the coating isn't damaged.
Will high pressure crack my tiles? ▾
Not when it's done right. We match the pressure to the roof and work in the correct direction so water isn't forced under the tiles. Cracked tiles usually come from inexperienced operators using too much pressure the wrong way.
Does the moss come back? ▾
It can over time in shaded, damp spots. A clean lasts a good while, and if you're painting afterwards the coating slows regrowth considerably.
Do I need cleaning, or a full restoration? ▾
If the tiles and pointing are sound and the roof's just dirty, a clean is all you need. If it's faded and the pointing's gone, cleaning is step one of a restoration. We'll tell you which after a look.
What Our Customers Say
"The roof is looking better than ever! Took great care with clean up too. Great communication and professional service from these guys."
"Roof Restorers done an amazing job on my roof, the work was top class, thank you Heather"
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Call: 6388 4492