Septic services in Helston & surrounding rural parishes
The Lizard peninsula south of Helston is one of Cornwall's most off-mains districts — the farms and coastal villages towards Mullion and Coverack sit well beyond the sewer network on private treatment systems.
What we can arrange around Helston
Kernow Septic is a local guide and enquiry service — we put you in touch with firms covering Helston and handle the checking that comes first. How it works.
Emptying & servicing Most requested
Scheduled emptying and servicing for tanks and treatment plants near Helston.
Repairs
Backups, blockages and failed soakaways put right.
Treatment plant upgrades
Upgrades where a septic tank no longer meets the rules.
Nearby areas
The local picture around Helston
Since 1 January 2020 a septic tank must not discharge directly to a watercourse — around Helston that means the River Cober, draining into Loe Pool — Cornwall's largest natural lake and a Site of Special Scientific Interest. A tank that still does needs upgrading to a treatment plant or a drainage field, and it usually surfaces at the point of sale. How the discharge rules work →
The Environment Agency designates 6 bathing waters on this stretch of coast — Porthleven Sands, Poldhu Cove, Polurrian Cove, Church Cove, Kennack Sands and Coverack . Private drainage in these catchments is monitored accordingly, and siting near protected waters affects what you can install. Look any beach up on the EA's bathing water profiles .
The Lizard is geologically unlike anywhere else in England — serpentine and gabbro rather than slate or granite — and its ground behaves accordingly: near-impermeable in places, with soakaway behaviour that surprises installers used to the rest of Cornwall. A local percolation test is not optional here. What a percolation test involves → · BGS geology viewer
Not sure if your system is compliant?
Since 2020 the Environment Agency's General Binding Rules ban septic tanks discharging straight to a watercourse. Run your setup through our free checker to see where you stand near Helston.
Run the free compliance check