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. 


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!

Interceptors or separators are used where there is a risk of oil, chemicals or suspended solids contaminating the surface water drains. They are designed to remove pollutants from the water and allow the cleaned water to discharge into a surface water drain.

Bypass separators are used in low risk sites such as a car park. Full retention separators are used on sites where there is a high risk of contamination. Both types come in two classes:

Class 1
Achieves concentration of 5mg/l of oil and can be discharged to surface water drain.

Class 2
Achieves concentration of 100mg/l of oil and can be discharged to foul sewer.


Our interceptors and separators are compatible with these types of sewage treatment systems


Allerton Bradley are concious of the limitations of rainwater harvesters. If you ring the office and ask for Jason or Jon, we would be happy to discuss the pros and cons. Please call 01529 305 757 or ring Jon Allerton on 07974 981 601.



Allerton Grease Traps

Our range of grease traps are designed to be installed underground for use in restaurants, nursing homes, hotels & pubs, food processing factories and fast food outlets.

Our standard grease traps are designed to suit up to 500 meals a day. The grease traps are designed to ensure that the liquid is stored within the unit for at least a day allowing the liquid to cool so that the fats and greases can be retained. The grease traps are emptied by vacuum tanker and do not require baskets to be removed manually.

Grease Dosing Systems

A build up of grease, oil and fat can cause the drain runs from the kitchen to become blocked as well as producing a foul odour as the fat starts to rot.

Grease dosing systems are available that will fit under the sink in the kitchen and will pump a measured dose of fat digesting bacteria into the drain run to reduce/eliminate the above problems.

It has the added bonus that it will improve the functioning of a sewage treatment system.

 Grease traps are compatible with these types of sewage treatment systems