GU34 · Alton
GU34 biocide treatment — a proper local service
The GU34 postcode has its own personality when it comes to biocide treatment. Alton town and the villages on the A31 corridor toward Four Marks and Chawton.

The GU34 postcode has its own personality when it comes to biocide treatment. Alton town and the villages on the A31 corridor toward Four Marks and Chawton. A wide mix of Georgian High Street clay peg tile, Victorian brick terraces with slate, and post-war concrete tile estates.
Streets & areas covered inside GU34
- Chawton
- Four Marks
- Anstey Lane
- Wilsom Road
- Holybourne
Inside the GU34 postcode
Alton town and the villages on the A31 corridor toward Four Marks and Chawton.
Roof stock we see here
A wide mix of Georgian High Street clay peg tile, Victorian brick terraces with slate, and post-war concrete tile estates.
Micro-climate
Prevailing south-westerlies drive rain hard against the exposed west-facing gables that are common on Alton family stock.
Biocide Treatment process
Biocide is applied as a soft-wash spray across every pitch, saturating the tile surface so spores are killed at the root.
How the route day works
GU34 shares a working day with the Bordon (GU35) side of East Hampshire when the property counts line up.
Neighbouring coverage
Petersfield (13 mi), Bordon (7 mi), Farnham (9 mi), Winchester (17 mi), Liss (12 mi).
Frequently asked
Which streets and areas do you cover inside GU34?
We cover the whole GU34 district — including Chawton, Four Marks, Anstey Lane, Wilsom Road — and we schedule GU34 work into a shared route day with Alton.
Is biocide treatment priced differently inside GU34?
Only in the sense that the roof stock and micro-climate here decide the method. A wide mix of Georgian High Street clay peg tile, Victorian brick terraces with slate, and post-war concrete tile estates.
Is biocide safe for pets and plants?
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. Across GU34 specifically, prevailing south-westerlies drive rain hard against the exposed west-facing gables that are common on alton family stock, and we plan visits with that in mind.
Do I need to clean the roof first?
For heavy moss and lichen, yes — biocide works best on a physically clean surface, so we usually pair it with a scrape-and-clean visit. Across GU34 specifically, prevailing south-westerlies drive rain hard against the exposed west-facing gables that are common on alton family stock, and we plan visits with that in mind.
GU34: book onto our next Alton-area route day
GU34 shares a working day with the Bordon (GU35) side of East Hampshire when the property counts line up. Send the address and we'll drop you into the next scheduled visit.
