Septic Tank & Treatment Plant Installation

If your property isn’t connected to the mains sewer, your wastewater is handled on site — and getting that system right matters. NW Tanks & Groundworks have been installing, replacing and upgrading septic tanks and sewage treatment plants across rural Lancashire since 2015.

Septic tanks vs sewage treatment plants

A traditional septic tank separates solids and allows the liquid to soak away through a drainage field. A modern sewage treatment plant goes further, treating the effluent to around 95% clean — clean enough to discharge to a watercourse where ground conditions rule out a soakaway. We’ll assess your site and recommend the right system, not just the one that’s easiest to fit.

Are you compliant with the 2020 rules?

Since January 2020, any septic tank discharging directly into a watercourse must be replaced or upgraded. It’s commonly picked up when a rural property is bought or sold — and it can hold up a sale. If you’re not sure where your system stands, we’ll assess it and sort a compliant solution, liaising with building control where needed.

What we handle

• New septic tank and treatment plant installation
• Replacement of old or non-compliant systems
• Full site assessment and percolation testing
• Drainage field and soakaway design
• Building regulations and Environment Agency compliance
• Working with tanker partners for emptying and servicing

Every installation is carried out to current standards and built to last. Fully insured, free no-obligation quotes.