Clean Slate Exteriors North-West

Roof cleaningMoss removal & roof treatment

Moss, lichen and black streaks taken off, the whole roof treated so it stays cleaner for longer, and the gutters cleared of everything that comes down.

  • Free estimates
  • Before & after photos
  • Fully tidied away
Roof cleaning, beforeRoof cleaning, after
BeforeAfter
Moss off

Signs your roof needs cleaning

If you can see any of these from the street, the growth on your roof is already doing some damage.

  • Moss on the tiles

    Green cushions along the tile edges hold water against the roof and lift the tiles as they grow.

  • Lichen spots

    Crusty yellow and grey patches that grip the surface. Scraping alone won't shift them.

  • Dark streaks and staining

    Algae spreading down the slope, usually worst where the roof sees the least sun.

  • Moss in the gutters

    Clumps falling into the gutters and blocking downpipes are a sure sign of what's above.

Drag the line.
See the difference.

Every roof cleaning job finishes with before and after photos. Here's one we did earlier.

Moss-covered roof on a semi-detached house, before and after cleaning, beforeMoss-covered roof on a semi-detached house, before and after cleaning, after
BeforeAfter
Step by step

How we clean a roof

  1. Check and protect

    We look over the roof first, then protect paths, plants and cars below.

  2. Moss off by hand

    The bulk of the moss is removed by hand, so the tiles aren't damaged.

  3. Treatment applied

    A biocide treatment kills lichen, algae and spores, and keeps working after we leave.

  4. Gutters cleared

    Everything that comes off is cleared from the gutters and downpipes.

  5. Photos and advice

    You get before and after photos, plus honest advice on keeping the roof clean.

Get a price

What's included

  • Moss removed from tiles, ridges and valleys
  • Lichen and algae treated
  • Gutters and downpipes cleared
  • Debris bagged and taken away
  • Before and after photos
  • Aftercare advice

Roofs we clean

  • Concrete tiles
  • Clay tiles
  • Slate
  • Bungalows
  • Extensions
  • Porches and bays

Not sure what yours is? Tell us about it in the form and we'll let you know.

Why clean your roof?

  • Protects the tiles

    Moss holds water and lifts tiles at the edges. Removing it takes that pressure off.

  • Keeps gutters flowing

    Less moss on the roof means less ending up in your gutters and downpipes.

  • Instant kerb appeal

    A clean roof changes how the whole house looks from the street.

  • Slows regrowth

    The treatment keeps working after we leave, so growth comes back slower.

Get a price without anyone knocking

Email us a photo and we'll measure the job remotely. We're always happy to visit if you'd prefer.

  1. Take a few photos

    The whole area, plus close-ups of the worst bits.

  2. Email them to us

    Add your house number and postcode so we can measure it.

  3. Get your estimate

    With honest advice on what the job needs.

  4. We book you in

    A date that suits you, and a visit first if it's needed.

Roof cleaning questions

Anything else, just message us.

All FAQs
Will roof cleaning damage my tiles?

No. The bulk of the moss is taken off by hand and the roof is then treated, so we're working with your tiles rather than against them. We'll talk you through the method for your roof before we start.

How long does a roof clean last?

The treatment keeps working after we leave and slows regrowth, but how long a roof stays clean depends on shade, nearby trees and which way it faces. We'll give you honest advice for your roof.

Is moss on a roof actually a problem?

It can be. Moss holds water against the tiles, can lift them at the edges and falls into gutters, where it causes blockages and overflows.

Which types of roof do you clean?

Concrete tiles, clay tiles and slate roofs are all fine. If you're unsure about yours, send us a photo and we'll tell you.

Do you clear the gutters after a roof clean?

Yes. Everything that comes off the roof is cleared from the gutters and downpipes before we leave.

Can you clean a roof in winter?

Yes, for most of the year. The treatment works best in a dry spell, so we plan around the forecast and will rearrange if the weather isn't right.

Tell us about the job. We'll do the rest.

Free estimates, no one knocking on your door, and a clean you can see in the photos.

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Free, no-obligation estimate

Get your free estimate

Tell us a little about the job and we'll come back to you with a price.

What needs cleaning? (tick any)