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True Roof
Melbourne roof restoration completed by True Roof

Roof Cleaning MelbourneSouthern SuburbsCarnegie

Dulux Accredited Applicator

Roof Cleaning
in Carnegie.

Carnegie's interwar and post-war brick homes mostly still wear their original terracotta or early concrete tile, and with the suburb's moderate street tree cover and rainfall running a little above the Melbourne average, those roofs stay damp longer than an open, sun-exposed one would.

10-Year Warranty

Melbourne & Surrounding Suburbs

4.9 Rating | Google Reviews
10yr Warranty Fully Insured Family Owned
Boral Roof Tile and ComponentsCSR Monier Roofing SpecialistDulux AcraTexFlexipointLeafbustersBristile RoofingSelleysBoral Roof Tile and ComponentsCSR Monier Roofing SpecialistDulux AcraTexFlexipointLeafbustersBristile RoofingSelleys
Postcode3163
RegionSouthern Suburbs
Common roof stockTerracotta tile · Concrete tile · Colorbond / metal
NCC climate zoneZone 6

Roof Cleaning · Carnegie

What's really growing on Carnegie roofs

Carnegie's interwar and post-war brick homes mostly still wear their original terracotta or early concrete tile, and with the suburb's moderate street tree cover and rainfall running a little above the Melbourne average, those roofs stay damp longer than an open, sun-exposed one would. That's the exact combination moss, lichen and algae need to establish. A soft wash treats it properly — a biocide kills the growth at the root, then a low-pressure rinse lifts it off the tile without cracking or dislodging anything, unlike high-pressure cleaning. We clear the gutters and valleys as part of the job and note any tile damage or ridge issues we come across.

Carnegie's slightly higher rainfall and moderate tree canopy near the Koornang Road strip keep shaded roof faces damp for longer stretches, which is where moss growth tends to start first.

Local roof weather

Roof weather in Carnegie

With rain falling on around ~130 days a year and shaded, south-facing pitches staying damp, moss and lichen take hold quickly on Carnegie roofs.

~130
rain days a year
days with measurable rain
November
wettest month
when a sealed roof earns its keep
~5
days over 35°C
why a cured coating matters
Extreme (11–13)
summer UV
what a fresh coating shrugs off
Melbourne UV now:
Now in Carnegie: °C,
Annual rainfall: 800–850 mmest.

Climate normals (2015–2024) from Open-Meteo ERA5 reanalysis — gridded reanalysis, so rainfall is an estimate that runs a little high versus long-term gauge averages. Live UV from ARPANSA, live conditions from Open-Meteo.

The process

How a True Roof soft wash works

1

Inspection

We check tile condition, valleys and pointing first, and photograph anything cracked or corroded before we touch it.

2

Treat

A biocide treatment is applied so moss and lichen are killed at the root, not just wiped off the top.

3

Soft wash

Low-pressure washing lifts the dead growth and grime without driving water under the tiles or stripping the surface.

4

Clear & check

We flush the wash debris out of the gutters and do a final check so you are left with a clean roof and clear downpipes.

Roof types in Carnegie

Soft washing suits terracotta and concrete tile roofs and older, more fragile tiles that high pressure would damage. Colorbond and metal roofs are washed even more gently. If a roof is due for more than a clean, we will flag whether sealing or restoration is the better spend.

Our standard

Our cleaning crews are fully insured, and any repair work we recommend is backed by a 7-Year Workmanship Guarantee and a 10-Year Dulux Acratex Material Warranty.

What affects your price

What drives the cost of cleaning in Carnegie

  • Whether the roof is original terracotta or later concrete tile.
  • The extent of moss, lichen and organic build-up to treat.
  • Roof access on standard blocks versus newer unit developments.
The hidden cost of moss

Clean it now. Replace it never.

Soft wash clean

from $750

Tile replacement + re-roof

$8,000 – $20,000+

Removes moss, lichen, and algae at the root
Preserves manufacturer tile warranty
Safe, no high-pressure tile fracturing
Completed without disrupting the household
Restores tile porosity and water run-off
Prevents pointing deterioration beneath the moss

Moss is not cosmetic. It is structural damage in slow motion.

Lichen and moss anchor into tile surfaces and hold moisture against them 24 hours a day. That constant dampness accelerates freeze-thaw micro-cracking through Melbourne winters, erodes pointing mortar, and quietly voids the tile manufacturer's warranty. Most homeowners find out the hard way when tiles start fracturing or when their insurer queries maintenance records after a claim. A soft wash costs a fraction of one tile replacement row and it buys back years of tile life.

Book online — free assessment

We'll tell you honestly whether a clean is all you need, or if there's more going on.

Current offer · Carnegie

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4.9/5 Rating · 40 Google reviews

What Melbourne homeowners say

"Had an urgent repair needed after storm damage. True Roof responded quickly, gave a fair quote, and fixed the leak efficiently. Very happy with the quality of work and the professionalism of the team."

Marcus Bellwether

Bentleigh
"Two years of chasing a leak that stained our ceiling. True Roof found the source on the first visit: a cracked valley that everyone else missed. Fixed same day. Exceptional."

James McKinley

Toorak
"Our terracotta roof was covered in moss and looked awful. The roof cleaning and sealing service made a massive difference. They were thorough and the roof looks incredible. Great value for money."

Sophia Chen

Box Hill
"Our tile roof was green with lichen after years of neglect. The soft wash brought it back to life without damaging the tiles. I wish we'd done it sooner. Very professional team."

Sandra Liu

Glen Waverley
"Our terracotta tiles were green with moss. After the soft-wash and restoration treatment they look incredible, and the Dulux coating means they're protected for years. Highly recommend."

Anna W.

Dandenong
"True Roof transformed our tired, leaky tile roof into something that looks brand new. The entire restoration process was smooth, the team was professional, and the communication was excellent. Highly recommend their services in Melbourne!"

Eleanor Vance

Doncaster

Carnegie roof cleaning — your questions

With the suburb's moderate tree cover and above-average rainfall, every two to three years is a sensible interval to stop moss establishing on shaded tile faces.
Yes. We plan access carefully around shared driveways, fences and neighbouring units, and always confirm access arrangements with you before the job starts.
No — it's the safer option specifically for older tile. Low pressure combined with a biocide cleans effectively without the cracking risk that high-pressure blasting brings to interwar terracotta.

Ready to sort your Carnegie roof?

Fastest way: call now and talk to a roofer, not a call centre. Prefer to see pricing and this month's offer first? Book online — it takes 30 seconds.

Mon–Fri 7am–6pm · Sat 8am–2pm · Free, no-obligation quotes

True Roof

Melbourne's Trusted Roofing Team, Since 2008.

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