Roof Cleaning · South Wales
Roof Cleaning in South WalesMoss Removed, Tiles Restored,No Return for 2–3 Years
A full exterior reset — moss softened and lifted with a low-pressure surface cleaner, debris taken off-site, gutters cleared, fascias and building washed down. One visit, one price, one clean finish that lasts. From around £650 for a standard 3-bed.
- Owner-led by Joshua Evans — same face on every job
- Fully insured for domestic & commercial work
- Written quote within 24 hours of your photos
- Serving South Wales — Port Talbot, Swansea, Bridgend, Neath, Cardiff
What roof cleaning actually involves
What it is
A complete roof clean: low-pressure surface-cleaner treatment to lift moss safely, 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 high-pressure jet-wash looks great for a week and destroys the tile coating. A controlled low-pressure surface cleaner plus a proper biocide clears moss without stripping the tiles or forcing water under the felt.
What happens if you leave it
Every job we quote for is easier — and cheaper — than the one that follows it. Here's what tends to happen when this gets ignored.
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
Uncontrolled high-pressure water blasts off the protective coating that stops moss re-attaching in the first place. Tiles cleaned by domestic pressure washer typically re-moss within 6–9 months and look worse than before. It's a common, expensive mistake — our low-pressure surface cleaner is a different beast entirely.
Our process
The same repeatable system on every job — so you know exactly what you're paying for and exactly what you're getting.
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1
Free photo-based quote within 24 hours
Send a few photos of the roof and gutters. We come back with a written, itemised quote — no site visit needed for most jobs, no follow-up pressure.
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2
Set up and site protection
Ladders, safety anchors and roof ladders in place — and tower scaffolding brought in where the pitch, height or access calls for it. Ground sheets down over patios and planting so the moss debris doesn't stain slabs or crush borders.
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3
Low-pressure surface cleaner
We work across the roof with a low-pressure rotary surface cleaner — enough to lift moss and organic growth off the tiles, gentle enough to leave the tile coating and pointing intact. Debris is collected and bagged off-site, never left in your garden or blown into a neighbour's.
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4
Biocide treatment
A soft-wash biocide is applied to kill remaining spores and stop regrowth taking hold. This is the step that gives you 2–3 years of clean roof, not weeks.
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5
Gutters cleared & elevations washed down
Any moss dislodged into gutters is cleared out. Fascias, soffits and the top of the elevation are washed down so you're left with a clean roof and a clean building.
What you actually get out of it
Concrete outcomes — not vague promises.
2–3 years clear
Low-pressure surface cleaning plus biocide keeps the roof visibly clean far longer than any high-pressure jet-wash job.
Tiles protected
No uncontrolled 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.
Drag to see the difference
Interactive before-and-after sliders from real roof cleaning jobs across South Wales.
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Recent roof cleaning work
Real jobs from South Wales — during and after.
The detail most companies skip
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 low-pressure, never a domestic jet-wash
The professional method for a roof that stays clean is a low-pressure surface cleaner paired with a biocide. Uncontrolled 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 never take a domestic jet-wash to a roof.
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.
Frequently asked questions
How much does roof cleaning cost in South Wales?+
For a standard 3-bed semi, roof cleaning starts around £650 including moss removal, biocide, gutter clearance and wash-down. Larger properties, steep pitches or heavy moss cover cost more. You'll always get a written quote before we book you in.
How long will the roof stay clean?+
With a low-pressure surface clean plus a proper biocide treatment, expect 2–3 years before you see any noticeable regrowth. Roofs blasted with a domestic jet-wash and no biocide typically re-moss within 6–12 months.
How long does the job take?+
A standard 3-bed roof clean is one full day on site. Bigger properties, detached houses or roofs with heavy moss can run into a second day. We book one job per day so we're never rushing you.
Is it safe for my tiles?+
Yes. We use a controlled low-pressure surface cleaner — never a domestic high-pressure jet-wash — followed by a soft-wash biocide. That combination lifts moss and organic growth without stripping the tile coating.
Do you offer a guarantee?+
We stand behind the finish — if the biocide hasn't done its job and the roof re-mosses inside the quoted lifespan under normal conditions, we come back and treat it again.
Do you clean roofs in Swansea, Bridgend and Cardiff?+
Yes — we cover Port Talbot, Swansea, Bridgend, Neath, Cardiff, Porthcawl, Maesteg and the Vale of Glamorgan. Roof cleaning is our flagship service across South Wales.
Will you make a mess of the garden?+
No. Ground sheets go down before we start, and every bag of moss is taken off-site. Patios, borders and lawns are checked before we leave.
Can you clean the gutters at the same time?+
Yes — gutter clearance is included in the roof clean price. You don't need to book it as a separate job.
Related services
Most customers pair roof cleaning with one of these — or ask about our full exterior reset. Not sure what you need? Send us a couple of photos.
Ready for a straight answer and a fair price?
Send a couple of photos and a postcode — you'll have a written, no-obligation quote within 24 hours. No pushy follow-ups, no hidden extras.
Owner-led · Fully insured · Serving Port Talbot, Swansea, Bridgend, Neath, Cardiff & across South Wales