Professional Roof Cleaning in Coffs Harbour
The black and green staining spreading across your roof is living lichen, moss and algae. We kill it at the root with a warranty-safe soft wash — never high pressure, which cracks tiles and strips coatings.
At a glance
Roof Cleaning in Coffs Harbour
From
$400
Roof cleaning in Coffs Harbour starts from $400 for a single-storey roof and is done by soft washing, not high pressure. Laing Pressure Washing applies a biodegradable solution at low pressure — under 500 PSI — that kills the lichen, moss and algae at the root, then rinses gently. High pressure is never used on a roof, because it dislodges tiles, cracks ridge capping and strips the factory coating off Colorbond. The black and green staining spreading across Coffs Coast roofs is organic growth fed by 71-81% year-round humidity, and left alone the lichen roots into the surface and holds moisture against it. Killing the growth at the spore level means it doesn't simply return the next wet season the way a pressure-blasted roof does. Tile, Colorbond and cement-tile roofs are all treated, and cracked tiles or blocked valleys get flagged while we're up there. Fully insured, free quotes. Call Matt on 0492 914 209.
Why Roof Cleaning Matters on the Coffs Coast
A Coffs Coast roof sits in near-perfect conditions for organic growth: humidity between 71% and 81% year-round, warm temperatures, and long periods where a roof simply never dries out. Lichen, moss and algae take hold as black streaks and green patches, and they aren't just cosmetic — lichen roots into the porous surface of tiles and cement sheet, lifts and holds moisture against the roof, and over time degrades the surface and the pointing. The instinct is to blast it off with a pressure washer, but high pressure on a roof cracks tiles, dislodges ridge capping, forces water under the laps, and strips the factory coating off Colorbond — turning a cleaning job into a repair bill. Soft washing is the method every roofing manufacturer specifies: kill the growth at the spore level with a biodegradable solution, then rinse at low pressure so it doesn't grow straight back.
- Kills lichen, moss and algae at the root — not just blasted off to regrow next wet season
- Warranty-safe low pressure (under 500 PSI) — never the high pressure that cracks tiles
- Safe on tile, Colorbond, and cement-tile roofs without stripping factory coatings
- Stops lichen rooting into the surface and holding moisture against the roof
- Biodegradable solutions — safe for gardens, pets, and Coffs Coast waterways
- Cracked tiles and blocked valleys flagged while we're up there
What We Clean
Specialised techniques for every surface and situation.
Tile Roof Soft Wash
Concrete and terracotta tile roofs treated with a biodegradable solution that kills lichen and moss at the root, then a low-pressure rinse — no tile-cracking high pressure.
Colorbond & Metal Roof Wash
Metal roofs cleaned at low pressure that lifts algae and grime without stripping the factory coating or forcing water under the sheets.
Lichen & Moss Treatment
Established lichen and moss that has rooted into the surface, killed at the spore level so it doesn't regrow the next wet season instead of just scraped off.
Gutter & Valley Check
While we're on the roof we clear and check valleys and flag any cracked tiles or blocked gutters, so a clean doesn't hide a leak.
Indicative pricing
What it costs
Indicative roof cleaning pricing across the Coffs Coast. Final price depends on roof size, pitch, access, and how established the lichen and moss are — every quote is given on-site for free.
Single-storey roof — tile or Colorbond
From
$400Two-storey roof
From
$600Heavy lichen / moss restoration
From
Quote on siteRoof + full house soft wash (combined)
From
Quote on siteCommercial / strata roofing
From
Quote on site
| Job type | From |
|---|---|
| Single-storey roof — tile or Colorbond | $400 |
| Two-storey roof | $600 |
| Heavy lichen / moss restoration | Quote on site |
| Roof + full house soft wash (combined) | Quote on site |
| Commercial / strata roofing | Quote on site |
Two-storey and steep-pitch roofs are quoted on site. Combined roof + house soft wash is discounted, as is a standing maintenance plan for shaded, slow-drying roofs.
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Frequently Asked Questions
No — and no reputable cleaner will. High pressure on a roof cracks and dislodges tiles, blows out ridge-capping pointing, forces water up under the laps, and strips the factory coating off Colorbond. Roofs are cleaned by soft washing: a biodegradable solution applied at low pressure (under 500 PSI) that kills the lichen, moss and algae at the root, followed by a gentle rinse. It's the method every roofing manufacturer specifies, and it's the only approach we use on a roof.
It's the same low-pressure, spore-killing method — soft washing — applied to the roof specifically. Roofs need it more than most surfaces because they stay damp longest and grow the heaviest lichen and moss, and because the cost of getting it wrong with high pressure (cracked tiles, stripped coatings, leaks) is much higher up there. If you're cleaning the roof and the house exterior together, we can quote both as one job.
Not the way it does after a high-pressure blast. Pressure only removes the visible growth and leaves the spores in the surface, so it returns within a season or two. Soft washing kills the organism at the root, so regrowth is far slower — in the Coffs Coast climate you'd typically get a few years before it needs doing again, depending on shade and how much the roof dries out.
Lichen and Moss Taking Over Your Roof?
Get a free, no-obligation roof cleaning quote today