Home›Roof Cleaning & Moss Removal›St George’s Hill
Thick cushions of moss and creeping lichen thrive on shaded estate roofs. We scrape, steam or gently wash them off in a way that respects clay, slate or concrete tiles, then treat the surface and clear the gutters of the fallout.
Roofs on the hill are often the most expensive single element of the house, whether that means handmade clay tiles on an early Arts and Crafts home or large expanses of slate and modern interlocking tiles on a recent rebuild. Blasting them with a high-pressure jet can strip surface finishes, force water under laps and shorten their life. Our roof cleaning St George’s Hill work therefore opens with moss removal done manually: each course is worked over with bespoke scrapers shaped to the contours of your particular tile, so growth comes away without anything being prised up or cracked.
With the heavy growth gone, what remains is shifted using either steam or a soft, low-pressure rinse, a decision we make according to the covering and how deeply algae and lichen have taken hold. Steam is particularly useful on older, softer clay, as heat does much of the work without force. Afterwards we can spray on a biocide that kills off lingering spores, holding back the return of green and grey growth for a good while. Last of all, every gutter is emptied of the moss and grit that inevitably comes down, so the cleaned roof drains properly from day one.

Moss needs shade, moisture and something to hold on to, and the estate provides all three in abundance. Many houses sit in clearings among mature Scots pine, birch and oak, so large parts of their roofs spend much of the year in dappled shade. Pine needles lodge in tile laps and valleys and break down into a thin organic layer that moss roots into happily. North-facing slopes, dormer cheeks and the roofs of garages tucked under trees are usually the worst affected.
The mix of roof coverings on the hill means there is no one-size-fits-all approach. Traditional clay plain tiles on the older houses have a slightly porous surface that holds moisture and lichen. Natural slate on some of the grander rebuilds sheds water well but grows black algae and lichen on its smooth faces. Concrete interlocking tiles, common on mid-century homes, develop a rough texture over time that moss grips tightly. Scraper shape, rinse pressure and the decision to use steam all follow from what is actually up there on your house.
Heavy moss is more than cosmetic. Clumps hold water against tiles, can lift them in a frost and wash down to block gutters and valleys, which on large roofs can lead to overflow in awkward places. We treat roofs right across KT13, from the hill itself to the older parts of Weybridge and the roads leading towards Byfleet, and are happy to agree access arrangements with estate security in advance.
Slate, old clay and concrete each call for something different, so nothing starts until we know which we are dealing with.
From your pictures, then from the ladder on the day, we establish what the covering is, how sound it looks and how thick the growth has become before settling on scrapers, rinse or steam.
Shaped scrapers that match your tiles take off the thick cushions of moss and dig it out of the overlaps, moving downslope so that loosened material drops towards the gutter line.
Any lingering algae, lichen and dirt are then shifted using whichever of steam or a gentle rinse the covering tolerates better, so the surface comes clean without water being driven under the laps.
If requested, a biocide is sprayed on to delay any new growth. Then gutters, valleys and outlets are emptied of fallen moss, and terraces, paths and beds beneath are swept clear.
Choosing SuperClean Gutters means choosing reliability, quality, and real results from a friendly team. We don’t just clear blockages — we return your gutters to proper working condition using industry-leading equipment.
Our team turns up when promised, operates safely at ground level using advanced high-reach systems, and when necessary, works safely from access equipment to ensure every section of gutter is fully cleaned.
We make sure every gutter is completely cleared, repaired where needed, and functioning as it should. With our customer-focused approach, free quotes, and guaranteed workmanship, you can rely on SuperClean Gutters to deliver a 5-star experience every time.
We arrive on time as promised and get the job done quickly, safely, and efficiently. No delays, no excuses — just reliable service you can trust.
Your home is safe. We’re fully insured and work to strict health and safety standards, giving you total confidence with every clean.
We use the latest professional vacuum systems on the industry, along with high-reach poles that allow us to clear even the hard-to-reach gutters from ground level.
From your first enquiry to the completed job, we’re on hand to help. Clear communication, transparent pricing, and a commitment to delivering a 5-star experience every time.
Growth on a roof creeps up gradually, and after a while the eye simply stops registering it. Booking a clean makes sense once you can pick out any of the following from the garden:
Booking roof cleaning St George’s Hill homes need before moss gets deep keeps the job relatively straightforward and reduces the risk of frost lifting tiles.
Each roof on the hill is priced on its own, as size and condition differ hugely from one plot to the next. We weigh up:
A set of photos showing every slope, snapped from the lawn or an upstairs window, usually lets us price the job accurately without a visit.
Not with the right method. On older clay tiles we rely on hand-scraping with profiled tools and, where needed, steam or low-pressure washing rather than a powerful jet. That removes moss and lichen without stripping the surface or forcing water under the tiles.
That depends on shade and tree cover, which is heavy on much of the estate. Applying biocide at the end of the clean makes a real difference to how fast anything grows back. Many owners on the hill find a roof stays clean for several years before needing more than a light maintenance treatment.
Yes. Slate needs a careful approach, as individual slates can crack under pressure or foot traffic. We remove moss by hand, then lift algae and lichen using low-pressure washing or steam, adjusted to the age and condition of the slates.
Most of it falls towards the gutters, which is exactly why we clear the gutters, valleys and outlets after every roof clean. Anything landing on terraces, paths or lawns is gathered up and bagged for removal, leaving the grounds as neat as they were.
If you would like them to be, certainly. Stable blocks, garages and pool houses tucked under the densest trees are frequently the mossiest roofs on the whole plot. Adding them to the main booking means every roof gets treated at once.
We apply biocidal treatments carefully to the roof surface only, avoiding overspray onto planting, ponds or terraces. If you have particular concerns about wildlife or sensitive plants close to the house, mention them beforehand and the work will be planned around them.
Explore some of our latest customer projects, showcasing the high standards and attention to detail we bring to each property.
At SuperClean Gutters, gutter care is more than just a job — it’s our commitment to keeping your home protected, functional, and secure. What started as a small local service with a focus on high standards has grown into a trusted name known for reliability, professionalism, and exceptional results.
We take pride in delivering a service you can depend on, every single time.
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We clean moss-laden roofs in each of these nearby places as well, with the same careful approach.
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Photograph each roof slope and send the pictures across; you will get our recommended method alongside a no-obligation price.