Terracotta Roof Cleaning & Moss Treatment in Tamworth & Regional NSW
Controlled-pressure cleaning and biocide treatment that lifts moss, lichen and grime off terracotta without chipping the glaze.
5 Starfrom Google ReviewsYour terracotta comes back to its natural colour with moss and lichen killed at the root, cracked tiles repaired and gutters flushed — no paint, no blown-out tile faces.
20+ Years Experience
Licensed & Insured (230343C)
7-Year Workmanship Guarantee
Local Family Business
Terracotta Needs Cleaning, Not Coating — And the Right Hand on the Lance
- Terracotta is fired clay with a glaze: Stewart tunes pressure and lance distance per roof, because the wrong nozzle strips glaze permanently.
- Moss and lichen are killed with a biocide soak rather than just blasted off, so the root structure doesn't regrow within a season.
- Cold Armidale and Walcha roofs hold moisture for months — treatment timing matters, and 20 years of local jobs tells us when to book it.
- Cracked and chipped tiles are replaced with salvaged period-matched terracotta so a heritage roof still reads as original.
- An optional clear glaze can be applied afterwards if you want the wet, factory-fresh look back without changing the colour.
- Gutters and downpipes are flushed of the debris the clean brings down, and the site is washed off before we pack up.
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Our Step-by-Step Execution Process
Our Step-by-Step Terracotta Process.
- 01
Test Patch
A small area is cleaned first to set the safe pressure for your glaze.
- 02
Biocide Soak
Moss, lichen and mould treated at the root and left to dwell.
- 03
Controlled Clean
Whole roof cleaned at tuned pressure, valleys and gutters included.
- 04
Repairs
Cracked tiles replaced, ridge caps checked and re-pointed as needed.
- 05
Optional Clear Glaze
A clear sealer applied for shine and easier future cleaning.
Terracotta Roof Cleaning & Moss Treatment FAQs
Should I paint my terracotta roof instead?
We generally advise against it. Terracotta breathes, and paint traps moisture and eventually flakes, committing you to repainting forever. A clean plus biocide treatment — with a clear glaze if you want the shine — keeps the tile doing what it was made to do.
How long before the moss grows back?
With a proper biocide treatment rather than a plain wash, most roofs stay clear for several years. Heavily shaded southern faces in cold, damp towns like Armidale regrow sooner, so we'll flag those areas and can schedule a light re-treatment.
Will pressure cleaning break my old tiles?
Not at the pressure we use. We test a patch first, work at a set distance and keep the lance off ridge lines and chipped edges. Any tile already cracked is identified and replaced rather than hit with water.