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Sewage Treatment Plant

Sewage Treatment Plant Installation, Servicing and Repairs

AFS supports domestic, rural and commercial sewage treatment plants across Hampshire, Surrey and West Sussex, from system assessment and installation to servicing, fault finding and replacement.

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Complete sewage treatment plant support

A sewage treatment plant must suit the wastewater load, site, discharge arrangement and long-term servicing requirements.

AFS works with sewage treatment plants at homes, estates, rural properties, commercial premises and developments across Hampshire, Surrey and West Sussex.

For new systems, we assess flows, levels, ground conditions, access and the proposed discharge route before installation is specified.

For existing plants, the symptoms determine whether the correct service is routine maintenance, desludging, mechanical repair, drainage investigation or replacement.

Send the plant make and model, site postcode, photographs, alarm details and available service history so the enquiry can be directed correctly.

Installation and replacement

Site assessment, plant specification, excavation, connected drainage, commissioning and replacement planning.

Servicing and fault finding

Checks of accessible blowers, pumps, controls, alarms and operating symptoms, with repair advice.

Emptying and desludging

Planned sludge removal with clear separation between tanker work and mechanical servicing.

How treatment plant enquiries are assessed

Identify the system and problem

Provide the plant make and model, address, symptoms, alarm information, service history and photographs.

Choose the correct service

AFS explains whether the likely need is installation, servicing, repair, emptying, drainage investigation or replacement.

Plan work and aftercare

The quotation or recommendation sets out the agreed scope and any future maintenance, emptying or monitoring requirements.

Domestic sewage treatment plants

Homes without a practical mains-sewer connection may require a correctly selected off-mains wastewater system.

Plant capacity must reflect occupancy and wastewater loading. The installation also needs suitable inlet levels, discharge arrangements, electrical supply, access and room for future servicing and emptying.

An existing septic tank should not automatically be replaced with the same arrangement. The current system, discharge route and site constraints need to be understood first.

Typical domestic enquiries

  • New treatment plant installation
  • Replacement of an ageing plant
  • Septic tank conversion
  • Alarm or blower faults
  • Planned servicing
  • Treatment plant emptying

Installation, maintenance and emptying are different services

Using the correct service page helps avoid treating the symptom instead of the cause.

Installation covers assessment, specification and construction of a new or replacement system. Maintenance checks the accessible mechanical and operating components. Emptying removes accumulated sludge by tanker.

A full or overdue plant may need desludging, but emptying will not repair a failed blower, pump, alarm, control panel or damaged drainage connection.

Choose the appropriate next step

  • Installation for a new or replacement system
  • Maintenance for routine service checks
  • Fault investigation for alarms or failures
  • Emptying for accumulated sludge
  • Drain survey for connected pipework problems
  • Conversion assessment for older septic systems

Commercial and higher-load treatment plants

Commercial sites may have variable flows, operational constraints and a greater consequence of failure.

Hospitality sites, workplaces, estates and managed properties may need flow information, occupancy patterns, service records and access planning before work is scoped.

AFS can connect plant servicing with pump, control, tanker and drainage support where the wastewater system includes several linked assets.

Information that helps

  • Site use and occupancy
  • Plant make, model and capacity
  • Last service and emptying dates
  • Alarm or fault history
  • Tanker and engineer access
  • Previous reports or discharge information

Completed AFS wastewater projects

These are genuine AFS projects covering a new treatment system, treatment-plant maintenance and the discharge infrastructure connected to an existing plant.

New non-electric sewage treatment system installed by AFS in Oxted Oxted: septic tank replacement and new non-electric treatment-system upgrade. Sewage treatment plant service equipment used by AFS in Witley Witley: treatment plant serviced, blower checked and sludge condition assessed. Automatic pump chamber installed for an existing treatment plant discharge in the New Forest New Forest: pump chamber and raised drainage field serving an existing treatment-plant discharge.
View AFS drainage, pump and wastewater case studies →

Feedback on complex sewage-system work

This Google review concerns a complex sewage-system project completed by AFS. The review does not identify the installed system, so it is not attributed to one of the case studies above.

★★★★★
“We got Alton in to resolve issues with our sewage system. Works were complex and tiring, and it rained the whole time the team was here. They were nothing but professional, efficient and knowledgeable. Thank you, Dan for the flexibility while dealing with all the back and forth emails and a special thank you to Craig, Leeroy and Tom who worked tirelessly to get the project finished asap. They left the site clean and tidy and were super polite and pleasant the whole 2 weeks they spent on site. 10/10.”
Raquel Peniche Five-star Google review

View AFS reviews on Google

Recent treatment plant jobs and updates

Work our engineers and crews have finished recently, from our own job updates.

Mike standing on the grate of a Klargester BioDisc sewage treatment plant in Shepperton Klargester BioDisc Component Repair in Shepperton Replacement Sewage Treatment Plant Installation Completed in Farnham Replacement Sewage Treatment Plant Installation Completed in Farnham Treatment Plant Service in Liphook Finds Split Diaphragms Treatment Plant Service in Liphook Finds Split Diaphragms
See all our latest jobs →

Check we cover your area

We cover about 50 miles around Alton. Type the first part of your postcode and we will tell you the nearest town we cover, how far it is from Alton and whether it is inside our area.

The first part is enough, for example GU34. We use it only to work out the distance from Alton and we do not keep it.

Enter the first part of your postcode, for example GU34.

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Sewage treatment plant services

Use the specialist page that matches the system and work required.

Treatment Plant InstallationTreatment Plant MaintenanceTreatment Plant EmptyingSeptic Tank ConversionSeptic Tank Drainage FieldsOxted treatment-system upgradeWitley treatment-plant maintenanceNew Forest treatment-plant discharge project

Request Sewage Treatment Plant advice or a quote

Send the details through and a member of the AFS team will come back to you.

Sewage Treatment Plant FAQs

What does a domestic sewage treatment plant do?

It receives wastewater and uses a treatment process to improve effluent quality before discharge through the site-specific arrangement. It still needs servicing and periodic sludge removal.

Do you install sewage treatment plants?

Yes. AFS assesses and installs domestic and commercial treatment plants, subject to site conditions, flows, access and the proposed discharge route.

Do sewage treatment plants need servicing?

Yes. Service requirements depend on the plant model and site duty. Accessible blowers, pumps, alarms, controls and operating symptoms may need checking.

Is servicing the same as emptying?

No. Servicing checks the plant operation and components. Emptying or desludging removes accumulated sludge by tanker. Many systems need both at different intervals.

Do you cover domestic and commercial sites?

Yes. AFS supports homeowners, commercial sites, estates, developers and property managers depending on the service required.

Which areas do you cover?

We mainly cover Hampshire, Surrey, West Sussex, Berkshire and nearby areas from our base near Alton and Liphook.

What information is needed for a quotation?

Send the site postcode, plant make and model, occupancy or design flow, photographs, alarm details, last service and emptying dates, access information and any previous reports.

Need help with sewage treatment plant?

Send an enquiry or call the AFS team. We’ll confirm the practical next step and whether a site visit is needed.

Call 01420 561661