Allerton are the premier off mains drainage company covering sales, servicing, commissioning and repairs of all types of septic tanks, sewage treatment plant, sewage pump stations and soakaways.

We will:

  • Save you money.
  • Maintain your compliance with regulators.
  • Help you protect the environment.
  • Extend the life of your system.
  • Delight you.

Contact us and we will be happy to make a site visit free of charge. Or you can simply discuss issues with any of our knowledgable staff in the office.

COVID-19 - Please note that while we are making site visits, we will not enter the house. We would, however, appreciate a bucket of warm water, soap, and a towel to wash our hands. 


Announcement: New Website Coming Soon!

Watch this space!



Contact our office to buy yours today!

£6 each*

Allerton Ground Water Tube Sketch Plan

The ideal solution for measuring your soakaway (drainage field) water levels.

Allerton Ground Water Tube

Learn more here.

*2 for £10, 3 for £14 (all prices include UK postage but exclude VAT)

Excellent service and attitude from staff

Mr B (Sewage treatment plant service and repair)

Many thanks for your kind and cheerful service

Mrs Potts (Sewage Treatment Plant Service)

A fantastic experience from quote to completion & considerably cheaper than competition

Mr Stokes, Surfleet (ConSept - New Installation)


We do specialised pump stations for awkward situations!

Need something very small, very shallow, or narrow? Need the inlet at the top? We can do that for you! Whatever your unique specification requirements, Allerton can accommodate!


We are now available for drain unblocking. If you have a clogged drain, be sure to contact Allerton
Jon Allerton - Allerton Team

Jon Allerton - Company Director

Having had nearly ten years experience in drainage of all sorts Jon Allerton decided to buy his own Land Drainage Machine. Ten years later, when the country as a whole had been drained, he decided to put his considerable knowledge of the way water moves in soils to good commercial use.

Taking on the agencies of Clearwater and Waterwise he realised he could design a better Sewage treatment plant and so the range of Allerton Sewage Treatment Plant became about 25 years later the company is still servicing these units all over the country. European rules made it uneconomical to make the smaller units and his company embraced the Diamond series of STPs.

These units are so reliable that he can recommend them as well as he does his own.

Jason Bradley was taken on as a trainee manager and after 15 years is now the Managing Director leaving Jon to focus on advice and sales.

After 46 years the company changed its name to Allerton Bradley Ltd to reflect this subtle change of direction!