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Sewage Treatment, Installations & Repairs

Sherborne Drainage offer a comprehensive range of installation & repair services, to assist with everything from new builds, property extensions, pipework upgrades, septic tanks, repeat blocked drains to collapsed pipe work. We take great pride in providing a solution for any drainage request quickly and efficiently then undertaking the necessary repair again quickly and efficiently to minimise any disruption to the drainage service.

Sherborne Drainage undertake a thorough assessment, including CCTV investigation to ensure we understand the full extent of the work required. We will then continue with the most appropriate and cost effective methods.

Septic Tanks & Sewage Treatment Plants

If you have a septic tank that discharges directly to a surface water source, you will need to replace or upgrade your treatment system by 1 January 2020

Rules for existing and new treatment systems;

You must use a small sewage treatment plant to treat the sewage if you’re discharging to a surface water source such as a river or stream. A small sewage treatment plant (also known as a package treatment plant) uses mechanical parts to treat the liquid so it’s clean enough to go into a river or stream.

Discharges from septic tanks directly to a surface water source are not allowed under the general binding rules.

If you have a septic tank that currently discharges directly to a surface water source, you will need to replace or upgrade your treatment system by 1 January 2020.

Where properties with septic tanks that discharge directly to surface water source are sold before 1 January 2020, responsibility for the replacement or upgrade of the existing treatment system should be addressed between the buyer and seller as a condition of sale. If you are in any doubt we can conduct a Pre-acquisition survey and advise you accordingly. For more information on this service visit the CCTV page on our website.

If the Environment Agency finds evidence that your septic tank is discharging to a surface water source and causing pollution, you will need to replace or upgrade your system earlier than 1 January 2020. You will usually have to do this within 1 year, although this will be agreed on a case-by-case basis.

Alternatively, to the above you may be able to:

• Connect to mains sewer – where available,

• Install a drainage field (also known as an infiltration system) so the septic tank can discharge into the ground instead of replacing your septic tank with a small sewage treatment plant.

We are here to help advise you through this process and meet compliance in time.


Our staff are street works accredited and trained in confined spaces, enabling us to work within deep excavations and sewers within the public highway. We work directly for the water authority and local authorities which ensures speedy transition from application to completed works.

Our services include:

1. Complete all applications on your behalf.
2. Obtain Highway Licences for;
3. Road opening permits.
4. Section 50 licences.
5. Road closure permits.
6. Completed works certificates.
7. Method statement and risk assessments specific to the task.
8. Traffic management including diversion plans.
9. Construction work, including;
10. Open cut traditional method.
11. Timbered heading trenchless tunnelling.
12. We take on the jobs that others won’t consider.

Why pay the ridiculous rates of the bigger companies.

Call now 0196323200 / 07940488426 (out of hours)

Click here to receive your FREE quote

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