Expert Roof Cleaning Moss Removal in Lostwithiel, Cornwall

It’s easy to ignore a bit of green fluff on the tiles, but moss acts like a giant sponge. When it rains in Cornwall—which we know happens quite a bit—that moss soaks up water and holds it directly against your roof surface. This leads to a nasty process called spalling. During a cold snap, the water trapped in the moss and the pores of your tiles freezes and expands, causing the surface of the tiles to crack or crumble. Most homeowners we speak to in Lostwithiel don't realise that a heavy covering of moss can add hundreds of kilograms of extra weight to their roof timber. Plus, when those clumps eventually roll off, they head straight for your gutters, leading to blockages, overflowing water, and eventually, damp patches inside your home. Have you checked your gutters lately to see if they’re struggling under the weight of fallen debris?

You might be tempted to get a pressure washer up there and blast the moss away, but we’d strongly advise against it. High-pressure water can be incredibly aggressive, stripping the protective granules off your tiles and often forcing water up and under the laps, which causes instant leaks. We do things the proper way. Our team uses manual scraping techniques, carefully removing the bulk of the moss by hand with tools specifically shaped to match your roof's profile. It’s a bit more 'elbow grease' for us, but it’s much safer for your home. We're often asked if this process is messy—well, we won't lie, roof cleaning creates a fair bit of debris. However, we make it our mission to clear everything up, leaving your patios and paths as clean as we found them.

Once we’ve cleared the physical moss, we don't just pack up and leave. To keep your roof looking great, we apply a specialised biocide treatment. Think of this as a deep clean for the pores of your tiles. It kills off the invisible spores of algae and lichen that a scraper simply can't reach. Over the following few months, this treatment continues to work with the weather, naturally cleaning the tiles and preventing that green carpet from returning anytime soon. This 'soft-wash' approach is the gold standard for roof maintenance in the South West. It’s particularly effective on traditional Cornish slate and modern concrete tiles alike, ensuring your roof remains breathable while staying clear of organic growth for years to come.

Choosing a local firm matters, especially with the unique coastal climate we have here. We aren't a 'fly-by-night' outfit; we’re your neighbours, and we take pride in every job we do across Lostwithiel and the surrounding 25-mile radius. Whether you’re worried about the state of your chimney or you think you need a full drone roof survey to spot a hidden leak, we’re here to help. Every job starts with a transparent, no-obligation quote—no hidden fees, no hard sell, just honest advice from people who know roofs inside out. If you’re tired of seeing moss tumble into your garden every time the wind blows, why not give us a bell? Call us today on 01392 542898 to book your free roof health survey and quote. Let’s get your roof back to its best before the winter sets in.