Exmouth’s coastal humidity and salt air create ideal moss conditions on north and west facing slopes. Moss holds moisture against the tile surface, accelerates freeze-thaw damage and can lift tiles over time. Left untreated, it shortens the life of the roof covering. We carry out roof moss removal across Exmouth with biocide treatment rated for coastal environments and annual maintenance recommendations. Call 01392 759 295.
Moss removal in Exmouth requires the correct approach to avoid damaging the tile surface. High-pressure washing strips the weathered surface of clay and concrete tiles, accelerating erosion and shortening the tile’s remaining life. We use low-pressure biocide application followed by gentle brushing where necessary. The biocide continues working for months after application, killing residual spores and slowing re-establishment significantly.
After treatment, we carry out a tile condition assessment as part of every Exmouth moss removal visit. Moss growth can conceal cracked tiles, deteriorated ridge mortar and blocked valleys. Identifying these secondary issues at the time of moss treatment prevents them becoming emergency repairs in the following autumn and winter — when Topsham’s — when Exmouth’s weather puts the most stress on compromised areas.
Exmouth’s combination of English Channel humidity, relatively mild winters and significant rainfall creates near-ideal conditions for moss establishment on north and west-facing roof slopes. The salt aerosol from the sea, paradoxically, does not inhibit moss growth — it affects the mineral mortar and metalwork, but moss is tolerant of coastal conditions and establishes readily on any textured tile surface that receives limited direct sunlight. On Exmouth seafront properties, north-facing slopes facing away from the sea are typically the worst affected, receiving low solar drying and high ambient humidity from the bay.
High-pressure washing is damaging to the surface of both clay and concrete roof tiles and is never appropriate on Exmouth properties. Clay tiles on Exmouth’s period properties have a weathered surface that has developed over decades — high-pressure washing strips this surface and accelerates the tile’s deterioration. Concrete interlocking tiles on post-war estate properties are more robust but still subject to surface erosion under high-pressure treatment. We apply biocide by low-pressure spray and use soft brushing where mechanical removal is necessary. The biocide provides several months of residual kill and significantly reduces re-establishment speed.
Every Exmouth moss removal visit includes a post-treatment condition assessment. When moss is cleared from a roof surface that has not been recently surveyed, the condition of the tile beneath is often worse than visible from below. Moss holds moisture against the tile surface and accelerates freeze-thaw damage in the coastal environment. Our post-treatment survey identifies cracked tiles, deteriorated ridge mortar and blocked valleys that the moss growth has concealed — issues that are best addressed while the roof is accessible rather than when they become leak events.
Free survey and itemised quote — no call-out fee, no obligation.
📞 Call 01392 759 295“Moss removal on our Exmouth Victorian. Low-pressure treatment, biocide applied. Condition report flagged a ridge tile issue we hadn’t noticed.”
“North-facing rear slope cleared of moss. They explained why high-pressure washing wasn’t suitable. Good professional approach.”
“Moss treatment on our post-war semi. Biocide applied after clearing. Re-growth has been much slower than after previous treatments.”
From £200–£600 depending on property size and extent of moss growth. Free survey. Call 01392 759 295.
High pressure strips the weathered surface of clay and concrete tiles, accelerates surface erosion and forces water under tiles. We use low-pressure biocide treatment that is effective without damaging the tile.
Every 3–5 years for most Exmouth properties. North-facing slopes and those with tree overhang may need attention more frequently due to coastal humidity.
Yes — biocide continues killing residual spores for several months after application. This significantly slows re-establishment compared to mechanical removal alone.
Tile condition, ridge mortar state, valley debris accumulation, and flashing condition. Moss growth often conceals secondary issues that are better addressed at the time of treatment.
Yes — the biocide we use treats moss, algae and lichen. All three are present on Exmouth properties due to the coastal humidity.
Yes — all EX8 addresses and surrounding area. Call 01392 759 295 to confirm your location.
No call-out fee. No obligation. A local roofer who turns up when they say they will.
01392 759 295