Algae and Moss Removal For Roofs, Walls and Gable Ends
Algae and moss are a persistent problem on Irish properties. The damp climate creates near-ideal conditions for biological growth to establish itself on almost any exterior surface, and once it takes hold, it spreads steadily if left untreated. Celtic Clean and Seal carries out algae and moss removal, covering roofs, driveways, paths, and exterior walls.
Roofs, driveways, and shaded paths are common areas, but walls and rendered surfaces tend to show the most noticeable growth. Pebbledash in particular is highly susceptible due to its rough texture and moisture-retaining properties.
North and east-facing gable ends are especially prone, staying damp longer and receiving less direct sunlight.
One of the more distinctive problems on pebbledashed properties is the red or orange staining that spreads across wall surfaces. This is caused by an algae called Trentepohlia, which produces a reddish pigment rather than the green colouring most people associate with algae. It is extremely common on older pebbledashed homes across Ireland and requires proper biocidal treatment, not just cleaning, to remove it effectively.
Biological growth does not stay static. Moss spreads into tile joints and retains moisture, accelerating surface deterioration. Algae works deeper into porous materials over time. The longer the growth is left untreated, the more involved the removal process becomes.
Celtic Clean and Seal uses specialist biocidal treatments alongside appropriate cleaning methods, tailored to each surface. This kills growth at the root rather than simply removing what is visible, and leaves a residual effect that slows regrowth considerably.
We carry out most of this work while washing your roof or driveway.
If algae, moss, or red wall staining has become a problem on your property, Celtic Clean and Seal can help. Call our team today on 09096 49858 to book a free estimate for removing the moss and algae from your property.
