Sewerage Treatment Plant Maintenance & Servicing
Planned servicing, breakdowns & compliance support. Effluent sampling, logbooks & consent-ready paperwork. Same-day callouts across the North, 24/7.
Sewerage (Sewage) treatment plant maintenance & servicing.
When to choose this service
Book STP maintenance if you have alarms, odours, high levels in the tank, poor discharge clarity, unusual noise from blowers/pumps—or you need routine servicing, desludging and compliance paperwork for permits/consents.
Ideal for homes, estates, schools, hospitality and industrial units. We manage service intervals (typically 6–12 months), sludge removal, and effluent sampling to support the General Binding Rules or permit conditions.
Why Drain Alert
Multi-brand expertise, manufacturer-aligned servicing and same-day breakdown response. We maintain blowers, pumps, diffusers and media; optimise airflows/recirc, and provide logbooks, asset registers and service reports with parts recommendations.
Desludging arranged with duty-of-care documentation. Optional telemetry & high-level alarms, consent sampling and remote monitoring. Fixed-price service plans available.
Related help: drain unblocking, repairs and grease management.
How we maintain treatment plants
A proven, fully managed process for sewerage treatment plant servicing across the North of England.
Inspect & test
Service & clean
Optimise & sample
Report & schedule
Safety & compliance for STP maintenance
We’re fully insured and accredited by Constructionline, CHAS, UKSTT and SafeContractor. RAMS provided for each visit. Our teams manage confined-space risks, gas monitoring (H2S/CH4), LOTO electrical isolation and Chapter 8 traffic management as needed. Waste is removed under duty-of-care with paperwork. We support compliance with General Binding Rules, permits/consents and maintain service logbooks for audits.




Where we service treatment plants.
Same-day coverage across the North West, Yorkshire & the North East.
We maintain packaged treatment plants for homeowners, landlords, estates, developers and facilities teams. We can also attend projects further afield by arrangement. Need availability today? Call 0800 616 222 or request a visit.
STP maintenance in your area
Same-day callouts and scheduled servicing across the North West, Yorkshire and the North East.
Manchester
Routine servicing and emergency breakdowns for homes, estates and commercial sites. Effluent sampling and consent support.
Liverpool
Blower and pump replacements, desludging and alarm upgrades across Merseyside.
Leeds
Service plans for HMOs, campuses and rural properties. Performance optimisation and logbooks included.
Sheffield
Hillside and restricted access sites maintained with safe systems of work and tidy reinstatement.
Newcastle
Telemetry and high-level alarm retrofits for estates and hospitality to reduce downtime.
York
Sympathetic maintenance in heritage settings; discrete venting and careful logistics.
Bradford
Industrial units and mills—bunded waste handling, separators and associated drainage serviced together.
Hull
High water table sites managed with careful desludging and process tuning to manufacturer specs.
Preston
Fixed-price servicing for new builds and estates across Central Lancashire.
Sunderland & Durham
From farms to hotels—scheduled visits, parts support and compliance documentation.
Need availability today? Call 0800 616 222 or request a visit.
Who trusts us for STP maintenance
From estates and national retailers to schools, healthcare and hospitality, clients choose Drain Alert for responsive breakdown cover, reliable servicing and clear compliance documentation.









Sewerage treatment plant maintenance FAQs
Quick answers to the questions we’re asked most. If you don’t see yours, call 0800 616 222.

