Roof Cleaning

Moss, lichen and algae damage tiles from the inside out. We remove them safely using soft-wash techniques, the approach recommended by roofing professionals across the UK.

Fully Insured
Fixed Quotes
No Upfront Payment
Card Payments Accepted
11 Years Experience

The Service

Roof Cleaning

We safely remove moss, lichen, and algae from roof tiles using low-pressure soft washing, protecting your tiles while eliminating the organic growth that causes long-term damage.

Most homeowners do not look at their roof until something goes wrong. By the time moss is visible from the ground, it has usually been established for several years. The moss itself is the obvious sign, but the real damage is what happens underneath. Moss and lichen root structures penetrate porous tiles, retaining moisture and accelerating the freeze-thaw damage that cracks and weakens tiles from the inside. Every heavily mossy roof we have cleaned across the South East has had some degree of tile deterioration underneath. The moss is the visible sign; the tile damage is the expensive one.

We use a soft-wash system, not high-pressure washing. High pressure can crack tiles, strip granules from felt, and dislodge mortar from ridge tiles. These are not theoretical risks. We see the results of pressure washing done wrong with some regularity, and it can cause more damage than the moss itself. Our low-pressure system, combined with specialist biocide treatments, kills organic growth at the root and removes it without any risk to the tile surface or the roof structure.

Safe for All Tile Types

Low-pressure soft wash for concrete tiles, clay tiles, and slate. Never high pressure on your roof. No cracking, stripping, or dislodging.

Biocide Treatment Included

Kills moss and lichen at root level so regrowth is prevented for years, not just temporarily cleared from the surface.

Single Visit Completion

Most domestic roofs are fully cleaned and treated in a single day. We confirm timing when we quote.

South East Coverage

Kent, Sussex, and Surrey covered, including coastal properties where salt air makes organic growth worse and more damaging.

We have cleaned roofs from Brighton to Thanet. Most jobs are completed in a single visit with a residual biocide that keeps moss away for years.

Why It Matters

The Problem We Solve

Roof Cleaning before treatment, Raw Power Exterior Cleaning

Tile Damage from the Inside

Moss and lichen root structures penetrate porous tiles, weakening them through freeze-thaw cycles long before any visible failure from the ground. By the time a roof looks bad, tiles are often already compromised.

Accelerated by Local Conditions

Coastal salt air and woodland shade, common across Kent, Sussex, and Surrey, cause moss growth to return far faster here than in other parts of the country. North-facing slopes are worst affected.

Regrowth After Pressure Washing

A pressure-washed roof without biocide will regrow within 12 to 18 months. The root structures were not killed, just temporarily cleared. Biocide treatment is what makes results last for years.

Get Your Fixed Price Quote

No obligation. We assess the job properly and give you a firm price before we start.

"The roof looks brand new. Honestly couldn't believe the difference. James did a great job at a great price. Would definitely recommend to anyone in a similar situation."

Sandra G Tunbridge Wells Google Review

How We Work

Our Process

01

Roof Inspection

We inspect from ground level and, where safe and necessary, from a working platform. We assess growth extent, tile condition, ridge mortar, and any areas of concern.

What this means for you: You know what we found and what we are going to do before we pick up any equipment. No surprises.

02

Biocide Application

We apply a specialist biocide treatment across the entire roof surface to kill moss, lichen, and algae at root level. On heavily grown roofs, we allow dwell time before the main clean begins.

What this means for you: The moss and lichen are killed at the root, not just cleared from the surface, which is why results last years, not months.

03

Soft-Wash Clean

Using low-pressure equipment, we work systematically from ridge to eave. No high-pressure equipment is used on tiles at any point.

What this means for you: Your tiles are cleaned thoroughly without any risk of cracking, stripping, or dislodging anything.

04

Debris Clearance & Gutters

All loose moss and debris is cleared from the roof surface. Gutters are cleared of debris where accessible. We leave the roof and surrounding area tidy.

What this means for you: The roof and surrounding area are left clean and tidy. No debris in your garden, gutters, or driveway.

FAQs

What homeowners ask us before booking

The questions we hear most often, answered honestly.

Is soft washing safe for all roof tiles?

Yes. Soft washing uses low pressure to clean tiles without risk of cracking, stripping, or dislodging anything. We use the same method for concrete tiles, clay tiles, and slate. It is the approach recommended by the NHBC and most roofing manufacturers, not high-pressure washing.

How long does a roof clean take?

Most domestic properties take a full day. Larger properties or heavily grown roofs may need a second visit. We confirm timing when we quote, so you know what to expect.

How long before the moss comes back?

With our biocide treatment, most roofs remain clear for three to five years, sometimes longer. Results depend on the roof's aspect, local tree cover, and proximity to the coast. North-facing or heavily shaded roofs will see growth return sooner than open-aspect roofs.

Will cleaning remove lichen as well as moss?

Yes. The biocide treatment kills lichen at root level. Very heavy lichen growth may take longer to fully clear, as the dead material takes time to weather off. We will tell you honestly what to expect based on what we see when we quote.

Do I need to be home during the clean?

Not necessarily. We need access to a water supply and the property boundary. You do not need to be present for the work itself. We confirm access arrangements when we book.

Explore

Our Other Services

Driveways & Patios

We restore driveways and patios to their original condition using professional-grade pressure washing and specialist cleaning solutions. No scrubbing required on your part.

See Details

Gutters & Fascias

We clear blockages, flush downpipes, and clean fascias and soffits, stopping the damp, water damage, and roofline staining that blocked gutters cause.

See Details

Window Cleaning

We clean windows at all accessible heights using a pure water fed pole system, leaving streak-free, spot-free results without ladders on your property.

See Details

Roof Coating

After a thorough clean, a breathable roof coating seals your tiles against moisture, slows the return of moss and algae, and gives the roof a refreshed, uniform appearance at a fraction of the cost of re-roofing.

See Details

Get Your Free Quote for Roof Cleaning

Call or fill in the form. We'll come back within 24 hours with a fixed quote. No chasing, no extras on the day.