Roof cleaning across Co. Meath & bordering towns

In Co. Meath, manual profile-blade moss removal followed by gutter clearance and a professional soft-wash biocide treatment costs €450 to €650 for a 2–3 bed terraced house, €580 to €850 for a typical 3–4 bed semi-detached house in Navan, Ashbourne, Trim, Dunshaughlin or Ratoath, and €820 to €1,150+ for a 4–5 bed detached house or large bungalow. If you choose a full controlled low-pressure wash for instant same-day colour restoration plus biocide, add €100 to €150.

Yes — blasting a roof at 2,500–3,000 PSI strips the protective acrylic surface coating and factory sand granules off concrete interlocking tiles (such as Roadstone, Marley or Tegral tiles), leaving the concrete porous so moss grows back twice as fast and frost can crack the tile. High-pressure lances pointed up the roof also drive water over the tile overlaps onto the breathable sarking felt, risking attic leaks, and walking directly on unsupported tiles snaps brittle nibs. Safe roof cleaning in Meath uses profile-shaped telescopic scrapers and low-pressure soft-wash biocide from scaffold towers and roof ladders.

After 95% of bulky moss cushions are physically scraped from the tile faces and overlaps using custom-moulded blades, the roof is saturated at low pressure (garden-hose pressure) with a biodegradable quaternary ammonium biocide (DDAC/BAC). The biocide penetrates microscopic pores in concrete and slate, killing remaining moss rhizoids, green algae, black biofilm and white/yellow lichen spores at the root. Over the following weeks, rainfall naturally washes away dead organic matter and the residual barrier prevents moss regrowth for 3 to 5 years.