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Concrete tiles · Clay tiles · Slate

Roof cleaning & moss removal

Clay roof heavily covered in moss and algae before cleaning
A moss-covered clay roof before cleaning

Moss holds water against your tiles, blocks gutters and lifts in frost. We take it off properly — by hand where it needs to be — and leave the roof sound, clear and ready to protect if you want it protecting.

What's involved

How we do it.

Roof inspection

We look at the whole roof before quoting — pitch, condition, ridge, valleys, flashing, and how we'd get safe access to it.

Manual moss removal

Thick moss comes off by hand and scraper. It's slower than blasting it and far kinder to the tiles.

Machine clean

Controlled cleaning to lift the algae and lichen the scraper leaves behind, using equipment matched to the tile type.

Repairs as we go

Slipped or cracked tiles replaced, isolated pointing made good. We'd rather sort it while the access is already up.

Gutters and downpipes

All that moss has to go somewhere. Gutters, fascia and soffits cleared as an optional add-on — most people take it.

Watch it work

How the water repellent works on a roof.

Manufacturer's film — worth a minute.

How the water repellent works on a roof

Suitable for

  • Concrete and clay tiles that have gone green or black
  • North-facing roofs that never dry out
  • Gutters overflowing because of moss wash-off
  • Roofs about to be coated — cleaning always comes first

Not suitable for

  • Asbestos cement roofs
  • Roofs with widespread structural failure — that's a re-roof, not a clean
  • Anything we can't reach safely

If yours falls in the second column we'll tell you at the survey rather than take the job. It's the cheapest thing we do for you.

Before & after

Same house, same spot.

House before cleaning The same house after cleaning Before After

Property cleaned down — drag to compare

Free property survey

Get it looked at properly.

Leave your details and one of our specialists will call to check a few things and book a survey. Free, and no obligation — if it isn't suitable we'll tell you.

Rather talk now? 0151 440 3603 or WhatsApp.

Questions

Asked before you ask.

Will pressure washing damage my tiles?

It can, which is why we don't just point a lance at a roof. Thick moss comes off by hand first, and machine cleaning is matched to the tile type and condition. Old, soft concrete tiles get treated very differently to hard clay.

How long does a roof clean take?

Most domestic roofs are one to two days depending on size, pitch and how much moss there is. Access setup is usually half of the first day.

Will the moss come straight back?

It'll come back eventually — that's just biology and a damp climate. A clear water-repellent treatment afterwards makes the surface much harder for it to take hold on, which is why most people have the two done together.

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