🏡 Roof Cleaning

Roof Cleaning & Moss Removal

Restore the look of your roof and prevent long-term damage. We offer two professional approaches — both carried out without ever walking on your tiles.

Get a Free Quote Call 07835 290869

Never walk on your tiles Two cleaning methods available Gutter clearing included £5M public liability insured

Why Moss is Destroying Your Roof

Moss acts like a sponge, absorbing and holding rainwater against your roof tiles. During winter, this trapped water freezes and expands — cracking tiles and degrading the mortar on your ridge tiles. As heavy clumps of moss dislodge, they fall into your gutters, causing blockages and potential water damage to your walls.

⚠️ Left untreated, moss can cause thousands of pounds in structural damage. A professional clean now is a fraction of the cost of tile replacement or roof repairs later.

Two Professional Roof Cleaning Options

We offer two methods depending on the condition of your roof, the tile type, and the level of moss build-up. We'll advise which is best for your property during the free quote.

Option 1 — Scrape & Biocide

Working from scaffold towers or cherry pickers, we manually scrape all moss from the tiles using extendable poles with custom-profiled scrapers, then apply a professional biocide treatment.

Best for heavy moss build-up

Option 2 — Low-Pressure Wash & Biocide

We use a controlled low-pressure rinse to dislodge moss and surface debris, followed by a full biocide treatment. Faster and ideal for lighter coverage and certain tile types.

Best for lighter coverage

✅ In both cases, we never walk on your roof — all work is carried out from the ground or from access equipment, protecting your tiles from cracking and your loft from water ingress.

The 3-Step Roof Restoration Process

Moss Removal

Using your chosen method (scraping or low-pressure wash), we remove the bulk of the moss from the tiles — all from ground level or access equipment.

Gutter Clearing

All dislodged moss that falls into the gutters is completely cleared using our high-reach vacuum systems — included in every roof clean.

Biocide Treatment

We spray the entire roof with a professional-grade biocide. This kills any remaining micro-spores, algae, and lichen. Over the following months, rainfall naturally washes away the dead biological matter, revealing a clean, restored roof.

Long-Term Protection

Because our biocide treatment soaks into the porous tiles and kills the root system, your roof will remain free of moss and algae for years — regardless of which cleaning method you choose.

Jakub on scaffold tower carrying out professional roof moss removal in Berkshire — PowerJ Exterior Cleaning

Why Choose PowerJ?

Two methods: scrape & biocide or low-pressure wash & biocide
Never walk on your tiles — all work from ground level
Gutter clearing included as standard
Professional biocide for long-lasting results
31 verified 5-star Google reviews
£5M public liability insurance

Call 07835 290869 Get an Online Quote

Frequently Asked Questions

Everything you need to know before booking.

Roof cleaning prices depend on the size and pitch of the roof and the level of moss coverage. Most domestic roofs cost between £300–£700. We provide free quotes after a visual assessment.

We offer manual scraping with biocide, and low-pressure washing with biocide. Manual scraping is best for heavy moss build-up. Low-pressure washing suits lighter coverage. Both are followed by a biocide treatment to kill remaining spores and prevent regrowth.

No. We never walk on roof tiles. We work from scaffold towers or cherry pickers using extendable carbon fibre poles, which eliminates the risk of cracking tiles underfoot.

A professional biocide treatment typically keeps moss and algae at bay for 3–5 years, depending on the roof's exposure to shade and moisture. We can set up a maintenance schedule.

Our methods are specifically designed to be tile-safe. Manual scraping and low-pressure washing will not void tile warranties. High-pressure washing, which we do not use on roofs, is what voids most warranties.