Arundel · BN18
Arundel biocide treatment done the right way
We cover Arundel on biocide treatment from our base in Petersfield, and we know the town well enough to price it properly rather than guess. Arundel's conservation-area core is dense with clay tile and natural slate roofs, many with delicate lead flashings around dormers and valleys.
Why Arundel roofs need biocide treatment done carefully
We cover Arundel on biocide treatment from our base in Petersfield, and we know the town well enough to price it properly rather than guess. Arundel's conservation-area core is dense with clay tile and natural slate roofs, many with delicate lead flashings around dormers and valleys. That's why one street off Arundel Castle might need a full scrape-and-treat while another needs only a light soft-wash pass. We also handle Worthing and Bognor Regis on the same trips, so trades don't sit idle between jobs.
Recent biocide treatment work near Arundel
What we see on Arundel roofs
Arundel's conservation-area core is dense with clay tile and natural slate roofs, many with delicate lead flashings around dormers and valleys.
algae returning within months of a manual clean
Common on stone and flint cottages where prevailing weather sits against the pitch.
black streaking rebuilding on shaded pitches
Frequently reported by owners near Arundel Castle.
lichen re-establishing on ridge tiles
Especially where mature trees over the historic area shed onto the roof.
green film across the whole slope after wet winters
Typical of properties served by the A27 where road dust binds with damp.
Who we work for in Arundel
homeowners protecting a recent clean
Typically stone and flint cottages inside BN18.
landlords wanting a low-maintenance roof between tenancies
Often managing multiple properties around Arundel Cathedral.
commercial property managers
Regular seasonal work across the Arun District area.
Our process in Arundel
- 1
Biocide is applied as a soft-wash spray across every pitch, saturating the tile surface so spores are killed at the root.
- 2
We time treatment for a dry weather window so the biocide has hours on the tile before any rain washes it off.
- 3
Elevations under heavy tree shade get a second pass — that's where regrowth always starts first.
- 4
We don't cheat by watering biocide down; the strength we quote is the strength we apply.
Arundel biocide treatment FAQs
Is biocide safe for pets and plants — is that the same in Arundel?
Yes — the products we use are designed for domestic roof application and are safe once dry, though we cover sensitive planting during the spray itself. In Arundel specifically, fog rolls in off the arun valley regularly, keeping tile surfaces damp long into the morning, so we plan the visit around that.
How often should biocide be reapplied — is that the same in Arundel?
Every three to five years is normal, sooner if your property is under heavy tree cover or close to the coast. In Arundel specifically, fog rolls in off the arun valley regularly, keeping tile surfaces damp long into the morning, so we plan the visit around that.
Will the roof look different straight away — is that the same in Arundel?
No — biocide kills algae and lichen at the root, and the dead growth then weathers off over the following months, gradually revealing clean tile. In Arundel specifically, fog rolls in off the arun valley regularly, keeping tile surfaces damp long into the morning, so we plan the visit around that.
Do you cover the whole of Arundel and the BN18 postcode?
Yes — we cover every part of Arundel, from streets close to Arundel Castle out to the edges bordering Worthing. If you're inside BN18, we'll be there.
Do you also work in nearby areas like Worthing and Bognor Regis?
Yes — Worthing (about 10 miles away), Bognor Regis (about 8 miles away), Chichester (about 11 miles away) are all part of the same regular route, so we can often combine visits with neighbours on the same street.
Nearby areas we also cover
Arundel is on our regular biocide treatment route, so we cover these surrounding areas on the same week:
Send us the address and a couple of phone photos. We'll come back with a proper written price — not a guess over the phone — usually within one working day.
Book a protection passIn short — Biocide Treatment in Arundel
The takeaway for Arundel property owners is simple. Biocide Treatment isn't optional maintenance — it's the difference between a roof that lasts its full design life and one that fails a decade early. Book a survey, get the honest picture, decide from there.
Free biocide treatment quote — Arundel
Send us the address and a couple of phone photos. We'll come back with a proper written price — not a guess over the phone — usually within one working day.