Sewage Treatment Plant & Pump Station Installations
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We specialise in the installation and replacement of sewage treatment plants, pump stations, and outdated septic tanks or cesspits. Our fully in-house service covers everything from initial site surveys and Environment Agency permit applications to expert installation, commissioning, and ongoing maintenance — ensuring your property is fully compliant and protected.
Design, Installation and Commissioning of Sewage Systems
​Our modern sewage systems are designed for homes, businesses, and industrial properties that are not connected to the mains sewer. We provide a fully in-house service, managing every aspect of your project from start to finish — including the initial site survey, Environmental Agency (EA) permit application, installation of sewage treatment plants and pump stations, and ongoing servicing and maintenance. By handling every stage internally, we ensure a seamless, compliant, and high-quality wastewater solution tailored to your property.
Why Upgrade to a Modern Sewage System?
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Older septic tanks and cesspits often fail to meet today’s Environmental Agency (EA) compliance requirements.
Modern sewage systems:
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Treat wastewater effectively before it is discharged
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Reduce the risk of pollution to rivers, streams, and groundwater
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Are fully compliant with the General Binding Rules (read on to find out more about the General Binding Rules)
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Improve property value and ease of sale​
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Can handle larger capacities for commercial or industrial sites
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Whether you need a domestic solution for your home or a commercial system for your business, modern sewage systems are reliable, efficient, and long-lasting.
General Binding Rules and your sewage system
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If your property is not connected to the mains sewer, you are legally required to comply with the General Binding Rules set by the Environment Agency.
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These regulations affect homeowners, landlords, developers, and businesses — especially when selling a property with a septic tank or sewage treatment plant.
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Failure to comply can delay or prevent a house sale.
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Can You Sell a House with a Non-Compliant Septic Tank?
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In short — no.
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Under current UK septic tank regulations:
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You cannot sell a property with a septic tank that discharges directly into a watercourse.
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All systems must meet the General Binding Rules.
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Buyers’ solicitors now routinely check septic tank compliance.
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Mortgage lenders may refuse to lend on properties with illegal or polluting systems.
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Since January 2020, septic tanks that discharge to rivers, streams, or ditches must be upgraded to a compliant sewage treatment plant.
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If your system does not comply, it must be upgraded before the property sale can complete.
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What Are the General Binding Rules?
The General Binding Rules are government regulations that control small sewage discharges in England.
To be compliant, your system must:
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Discharge to a properly designed drainage field or soakaway
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Be correctly sized for the number of bedrooms or users
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Be installed to manufacturer specifications
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Be regularly serviced and maintained
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Be emptied by a licensed waste carrier
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Not cause pollution to groundwater or surface water
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Non-compliant septic tanks must be replaced with a modern sewage treatment plant installation.
Environmental Agency (EA) Permit to Discharge
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Obtaining an Environmental Agency (EA) Permit to Discharge is a legal requirement for properties that are not connected to mains sewers and need to discharge treated wastewater into the ground or watercourse. The application process can be complex, involving technical forms, site assessments, and compliance checks — which is where we come in.
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We handle the entire permit application on your behalf, including:
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Completing all required EA forms accurately
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Carrying out detailed site assessments and measurements
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Submitting supporting documentation, such as system design plans
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Liaising directly with the EA to ensure a smooth approval process
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By managing the permit to discharge in-house, we take the stress off your shoulders and make sure your sewage treatment plant or pump station is fully compliant from day one. This not only speeds up installation but also ensures your property meets all regulatory requirements, protecting you from potential fines or delays in property sales.
Locations:
We provide domestic, commercial, and industrial sewage treatment plant installation, septic tank replacement, and waste removal services across Buckinghamshire, Berkshire, Bedfordshire, Oxfordshire, and Hertfordshire, covering towns and surrounding villages.​
Buckinghamshire
Our expert team serves the entire county, offering sewage treatment plant installation, cesspit replacement, and maintenance in Aylesbury, Amersham, Beaconsfield, Bletchley, Buckingham, Burnham, Chesham, Great Missenden, Haddenham, Hazelmere, High Wycombe, Hughenden, Marlow, Milton Keynes, Penn, Princes Risborough, Stewkley, Wendover, Wingrave, and surrounding villages.
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Bedfordshire
We provide domestic sewage and waste management solutions across Bedfordshire, including Bedford, Biggleswade, Dunstable, Leighton Buzzard, Luton, Shefford, Houghton Regis, Ampthill, Flitwick, Kempston, and nearby villages. Our services include septic tank replacement, sewage treatment plant installation, and ongoing maintenance.
Berkshire
From Reading to Windsor, we offer sewage treatment plant installation and cesspit replacement throughout Berkshire. Serving towns such as Ascot, Bracknell, Cookham, Colnbrook, Maidenhead, Newbury, Old Windsor, Pangbourne, Reading, Slough, Tilehurst, Windsor, Winnersh, and surrounding areas, we ensure fully compliant wastewater solutions for homes and businesses.
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Oxfordshire
Our team covers Oxfordshire with professional sewage treatment, pump station installation, and septic tank upgrades. Key service areas include Oxford, Bicester, Henley-on-Thames, Watlington, Abingdon-on-Thames, Banbury, Witney, Chipping Norton, Carterton, Didcot, Faringdon, Charlbury, and nearby villages.
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Hertfordshire
We provide comprehensive sewage and waste solutions throughout Hertfordshire, including Luton, St Albans, Watford, Hemel Hempstead, Stevenage, Hertford, Welwyn Garden City, Chorleywood, Berkhamsted, Harpenden, Hatfield, Hitchin, Hoddesdon, Bishop’s Stortford, Ware, Potters Bar, Cheshunt, Bushey, Radlett, and surrounding villages. Our services include treatment plant installation, septic tank replacement, pump station installation, and ongoing maintenance.
Your one-stop-shop for residential, industrial and commercial drainage solutions
The Weatherhead Group comprises three individual companies:
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A Weatherhead Drilling Services Ltd
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A Weatherhead Drainage Ltd
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A Weatherhead Ltd
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Which complement each other to provide clients with a holistic service that can take care of all your drainage and water requirements.
Areas we cover:
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Buckinghamshire
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Hertfordshire
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Bedfordshire
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Oxfordshire
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Berkshire
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London
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Other areas available on request