Modern Systems for Homes and Developments
STS installs fully certified wastewater systems that meet the latest environmental standards and support planning approval. Formally assessed by Natural England, our work is recognised by local authorities across the UK. We help homeowners replace outdated septic tanks and provide developers with nutrient mitigation for sensitive catchment areas.
From Tank Upgrades to Planning Support
We replace outdated septic tanks across the UK with modern, regulation-compliant Package Treatment Plants (PTPs).
For homeowners, that means peace of mind, long-term compliance, and a cleaner local environment.
For developers, our nutrient credits unlock planning approval in protected catchment areas.
The UK Has a Growing Water Quality Crisis
Pollution from outdated septic systems and sewage overflows is placing increasing pressure on our rivers and planning system. Across the country, local authorities are being forced to restrict new development to protect fragile catchments.
At STS, we’re tackling the problem from both ends — upgrading existing systems and unlocking sustainable growth through nutrient mitigation.
Guided by Advice from Natural England
We received advice from Natural England confirming that Local Planning Authorities can rely on our scheme when undertaking Appropriate Assessments. This provides confidence for developers, planners, and homeowners navigating the nutrient neutrality process.
Ready to Upgrade Your Septic System?
Book a free survey or speak to our team — no obligation, just clear advice.
