Restore your roof's appearance — and extend its life
Professional roof cleaning, moss removal and long-life protective coatings that make a tired roof look new and shield it from the weather for years to come.
Cleaning, sealing and coating for tile and slate roofs
Moss, lichen and algae hold moisture against tiles, block gutters and shorten roof life. Our teams safely remove the build-up using appropriate soft-wash and scraping methods, then treat the roof to slow regrowth.
For roofs in good structural condition, we can follow with a breathable waterproof coating in a colour of your choice — restoring the appearance and adding years of weather protection without the cost of a full re-roof.
It's one of the most cost-effective upgrades you can make to a tired-looking home — the change from the street is dramatic, and it's a fraction of the cost of a full re-roof.
Why customers choose CornerStone
- Full manual and soft-wash roof cleaning
- Moss, lichen and algae removal
- Biocide treatment to slow regrowth
- Long-life waterproof coating options
- Colour restoration in a choice of finishes
- Fully insured working-at-height teams
A complete roof cleaning & coating service under one roof
Everything you need for this area of your property, delivered by qualified specialists — with one point of contact from assessment through to sign-off.
Soft-Wash Cleaning
Low-pressure cleaning system that lifts dirt, lichen and algae without damaging or displacing tiles.
Moss Removal
Manual scrape and brush of heavy moss growth, gutter clearance and safe disposal from site.
Biocide Treatment
Professional-grade biocide that continues to kill spores for months, slowing regrowth significantly.
Waterproof Coating
Breathable, water-repellent coating that seals microcracks and restores weather protection.
Colour Restoration
Choice of tile-matched finishes — terracotta, slate grey, brown, black — bringing tired roofs back to life.
Gutter Clear & Check
Gutters cleared as part of every clean, with a written condition report on tiles, ridge and flashings.
The transformation happens without a full re-roof
Most tiled roofs we see are structurally sound — they just look tired because of decades of moss, algae and weathering. Cleaning and coating restores the appearance dramatically for a fraction of the cost of stripping and re-tiling.
Every clean starts with a proper inspection. If a coating isn't right for your roof — because it needs repair, or the tile type isn't suitable — we'll tell you honestly before quoting.
- Instant kerb-appeal boost
- Extends roof life by years
- Cheaper than a re-roof
- Breathable coatings — no trapped moisture
Straightforward from first call to final walk-round
No pressure sales, no surprise costs. Here's exactly what to expect when you work with us.
- 01
Roof Inspection
We inspect the tiles, ridge, valleys and flashings, and confirm whether coating is suitable for your roof.
- 02
Clean & Treat
Moss removed, roof soft-washed and biocide applied. Gutters cleared, driveway protected, site left tidy.
- 03
Coating Applied
If chosen, breathable coating applied in your colour over two or three coats depending on absorbency.
- 04
Final Inspection
Walk-round with before-and-after photos, and your workmanship guarantee handed over.
The reasons regular roof care pays for itself
Moss holds water
Water held against tile edges freezes, expands and cracks tiles — leading to leaks and premature tile failure.
Blocked gutters cause damp
Moss from roofs washes into gutters, blocks downpipes, and pushes water back onto walls — a leading cause of penetrating damp.
First impressions sell homes
Prospective buyers judge a property from the pavement. A clean, uniformly-coloured roof adds real perceived value.
Frequently asked questions
Is roof coating a real alternative to re-roofing?+
For structurally sound roofs that have simply weathered, yes — a coating can add years of protection at a fraction of the cost. If the roof needs actual repair we'll tell you honestly.
Will cleaning damage my tiles?+
No. We use appropriate low-pressure and manual methods for the tile type so cleaning restores the roof without damaging it.
How long does the work take?+
Most domestic roofs are cleaned in one to two days, with coatings applied over a further one to two days depending on size and weather.
How long will the coating last?+
A properly applied breathable coating system typically carries manufacturer warranties of 10–20 years depending on the product specified.
Do you protect the garden and driveway?+
Yes — we use ground sheeting to catch moss debris, keep gutters clear during works, and clean the property boundary before we leave.
What colours are available?+
Standard tile-matched shades include terracotta, brown, slate grey and black. Bespoke shades are available on request.
Ready to protect your property?
Get a free, no-obligation quote and we'll come and take a proper look — no pressure, no pushy sales.