Septic tank installation in Cornwall
For the right property — with suitable ground for a drainage field and no watercourse discharge — a septic tank is still a sound, cost-effective choice. New septic tanks are installed across Cornwall, correctly sized and sited to meet the binding rules.
A compliant installation
Discharge must be to the ground through a drainage field built to BS 6297, kept under 2 m³/day, and outside a groundwater Source Protection Zone 1. The site is assessed first so the system is compliant from day one.
Cost
Prices depend on your property and access. Get an indicative figure from our cost calculator, then call 01872 306777 for a firm quote.
Common questions
Can I still install a new septic tank?
Yes — provided it discharges to the ground via a proper drainage field (not to a watercourse) and meets the binding rules. Where those conditions can’t be met, a treatment plant is the alternative.
Where we work in Cornwall
Serving 20 towns and their surrounding rural parishes:
Related services
Sewage treatment plant installation
Package sewage treatment plant supply and installation across Cornwall — including upgrades where a septic tank no longer meets the rules.
Soakaways & drainage fields
Drainage-field assessment, repair and new installation across Cornwall for systems that discharge to ground.
Septic tank replacement
Replace or upgrade a failing or non-compliant septic tank anywhere in Cornwall — the usual fix for a 2020-rules problem.