Roof Cleaning · South Wales

Roof Cleaning in South WalesMoss Removed, Tiles Restored,No Return for 2–3 Years

A full exterior reset — moss scraped off the roof and taken off-site, gutters cleared of debris, fascias and building washed down. One visit, one price, one clean finish that lasts. From around £650 for a standard 3-bed.

What it is

A complete roof clean: manual moss removal, biocide treatment to kill regrowth spores, gutters cleared of the resulting debris and the elevations washed down so no mess is left on your property.

Who it's for

Homeowners with visible moss growth, dark streaking, blocked gutters caused by roof debris, or anyone selling a property who needs the outside looking sharp for viewings.

When you need it

When you can see moss clumps between tiles, when gutters keep filling despite being cleared, or when tiles look dark and streaked. The longer moss sits, the more it damages the tile surface underneath.

Why do it properly

A power-washed roof looks great for a week and destroys the tile coating. Manual scraping plus a proper biocide is the only method that clears moss without stripping the tiles or forcing water under the felt.

Moss holds water against your tiles year-round

Concrete and clay tiles are designed to shed water fast. Moss holds moisture against the surface for weeks at a time, softening the outer skin of the tile and accelerating freeze-thaw damage every winter. Left long enough, tiles start crumbling at the edges.

Blocked gutters become a bigger, wetter problem

As moss dies back naturally it drops into your gutters. Once they clog, water overflows down the fascia, soaks into brickwork, and sits against timber. What starts as a £150 gutter clear turns into rotten soffits and internal damp.

DIY jet-washing wrecks the tile finish

High-pressure water blasts off the protective coating that stops moss re-attaching in the first place. Tiles cleaned by pressure washer typically re-moss within 6–9 months and look worse than before. It's a common, expensive mistake.

2–3 years clear

Manual removal plus biocide keeps the roof visibly clean far longer than any pressure-wash job.

Tiles protected

No high-pressure water on the tile surface — the protective skin stays intact.

Kerb appeal restored

The single biggest visual upgrade to the outside of a house, especially before a sale.

Gutters cleared free

Any debris created by the clean is removed from your gutters as part of the price.

One trip, one team

Roof, gutters and elevations all done in one visit — no scheduling three trades.

Fully insured

Ladders, roof access and biocide handling all covered on our policy.

Materials and tiles we clean

Concrete interlocking tiles, plain clay tiles, slate (natural and man-made) and profiled roofing sheets. Method varies by material — slate is treated with extra care because it's more brittle at the edges. We inspect for cracked, slipped or missing tiles and flag them before work starts, so you're never surprised by damage that was already there.

Why manual removal, never high pressure

The industry-standard method for a roof that stays clean is soft-wash: manual moss removal followed by a biocide. High-pressure washing strips the tile coating, forces water past overlapping edges into the roof void, and guarantees you'll be paying for the same job again within a year. We do not use high pressure on roofs — ever.

Biocide, and why it's the important step

The visible moss is only part of the problem. Airborne spores land on the tile surface and colonise within months. The biocide treatment kills spores at the surface so regrowth has to start from zero — that's what turns a two-month result into a two-to-three year result.

2–3 year roof treatment plan

For past roof-clean customers we offer an ongoing 2–3 year treatment plan — a lighter biocide top-up that keeps the roof looking clean between deep cleans and costs much less than a full re-clean. Ask about it when your original clean is due a refresh.

Residential vs commercial roofs

Domestic pitched roofs are our bread and butter. For commercial buildings — flat roofs, industrial cladding, coated metal profiles — we use different chemistry and access equipment, and quote after a site walk-through. Ask if you need this.