Commercial Sewage Treatment Systems

Are you looking for commercial wastewater treatment solutions? We have many options including the HiPAF sewage treatment system which is suitable for 60-2,000 people.

Two HiPAFs on the way to site

We've installed HiPAFs at McDonalds, a pub, and other locations

Sewage Treatment for Commercial Properties

We have a number of sewage treatment options for large commercial businesses. This includes sewage treatment plant, pump stations, grease traps, interceptors and separators. We also do servicing and maintenance for any kind of sewage system.

HiPAFs are high performance aerated filter packaged wastewater treatment plants. They come in several different ranges depending on your needs. Contact Allerton to discuss all of your options.

We've installed HiPAFs at McDonalds, a pub, and other locations

Sewage Treatment for Commercial Properties

HiPAFs are high performance aerated filter packaged wastewater treatment plants. They come in several different ranges depending on your needs. Contact Allerton to discuss all of your options.

Sewage Treatment Systems

We install large sewage treatment plants such as the Diamond DMC which has a 21 to 55 occupancy equivalent.

Click Here

Allerton Engineer working on a Klargester Bearing Replacement

Repairs and Servicing

We are qualified to repair or service any kind of sewage treatment system, even from other companies such as this Klargester Biodisc - NG.

Click Here

Grease Traps

These units can cope with up to 500 meals a day in businesses such as restaurants, nursing homes, hotels & pubs, fast food outlets and more.

Click Here

Interceptors and Separators

We have two classes which prevent the contamination surface water. Class 1 for surface water drains and class 2 for foul sewer.

Click Here

What are our customers saying?

"Good set of guys, efficient, informative. Thanks very much."

Premier Composites Ltd

Sewage Treatment Plant Installation in Lincolnshire

We are one of the most highly reviewed UK company in off-mains drainage. Read our more than 75 positive reviews.

Pump Stations

Visit our Pump Stations page for more information about the types of pump stations we offer. We can accommodate large commercial businesses, so contact Allerton for more information.

Sewage Treatment Plant: WPL Diamond DMC

Visit our Diamond page for more information about this sewage treatment plant. The largest WPL Diamond is suitable for up to 55 people.

Sewage Treatment Plant: WPL HiPAF

This treatment plant is suitable for 60-2,000 people. The design of the WPL HiPAF is based on the Submerged Aerated Filtration process and has been successfully installed at many sites similar to your project, the system has a number of distinct advantages:

Very robust process; consistently complying with discharge permit requirements.

Low operation and maintenance costs.

Capability of dealing with variable flows and loads (down to 10% of design load).

Small footprint, keeping installation costs down.

Ease of installation, saving valuable time on site.

Sewage Treatment Repairs and Servicing

Don’t worry if you have a unit that wasn’t installed by us. We also service units from other companies such as: Klargester, Condor, Entec, Mantair, Mono Pump, Waterwise, Clearwater, Marsh and many others.

Our engineers are fully trained in all the different systems available in the UK.

Our engineers will do whatever it takes to maintain your system and extend its lifespan, including the following steps where appropriate:

Pumps are removed, checked and cleaned.

Checking Pipework is in good working condition, including valves etc.

Distributors stripped down and checked.

Diaphragms and filters checked and/or replaced.

Replacement of perishable parts as required, including lid seals, locks and hinges.

Pumps are tested under working conditions.

Checking that the Control Panel is working correctly, which includes timers, consumer units and circuit breakers etc.

Floats and/or high level alarms checked.

Oil replenishment on certain units.

Whether units require desludging or cleaning.

Make recommendations on performance improvements

Answer your questions

What do our grease traps do?

Grease management is important for businesses that prepare a lot of meals. If grease traps aren't used it can cause problems in the drainage systems.

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:

The Diamond Range

ConSept (Septic Tank Converter)

HIPAF (Wastewater Sewage Treatment for 70+ people)

Drainage Interceptors and Separators

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:

The Diamond Range

ConSept (Septic Tank Converter)

HIPAF (Wastewater Sewage Treatment for 70+ people)

Why Allerton?

Qualified

Having Allerton install your HiPAF means you'll have an experienced team who will install it correctly, giving you peace of mind. We are specialists in off-mains drainage and have 50 years of experience and are knowledgeable in installing and servicing all makes/types of sewage treatment systems.

Value for Money

We offer a free initial on-site consultation for installations within a reasonable distance from Sleaford. We keep our customers in mind when it comes to pricing. We have saved our customers hundreds of pounds over the years by our considered overview. We can do the same for you! Speak to us for a quote!

Friendly

From the office staff to the engineers in the field we are extremely friendly and have received great reviews to prove it. You know you're in good hands with Allerton.

Ready to arrange an appointment?

Contact our office to arrange a visit. Don’t hesitate to talk to us if you have any questions or concerns.

Allerton - Sewage Treatment and Septic Tank Specialists

4.9

Based on 78 reviews

review us on

James Brown

18:23 12 Mar 25

Excellent service from these guys, reasonably priced too. Thanks

Eira Griffiths

08:38 10 Mar 25

Used Allerton's for nine years. Apart from annual service of the pump also had a new pump and guide rails.Always turn up and provide what we consider to be excellent service. Previous owners never had pump serviced and the installer didn't want to know when asked about servicing. Luck to have found Allerton's

Martyn Malcomson

12:20 01 Mar 25

Excellent service from Allertons when my Consep failed to pump out. Called them just before closing on the Thursday, their engineer was with me by 8am the next day. The problem was quickly resolved and I was given advice on what to do if the problem re-occurred.

mike wentworth

13:39 24 Feb 25

As a customer for almost 20 years I am pleased to recommend Allertons for their efficient professional service; their work technicians have always proved helpful as was Zak who is the most recent.

MARY HUGHES

16:47 21 Feb 25

I would like to say a huge thank you to Allerton Bradley. I had a survey done on my septic tank by them this week. Having been really stressed about my house move, I booked the survey.Allerton Bradley were recommended by one of my neighbours. The appointment was confirmed and took place within a couple of days of me emailing my request.James, the engineer came out and was incredibly courteous and professional. Also knowledgeable, most informative and reassuring.There was a comprehensive report which I received within 2 days of the survey.I thoroughly recommend this company and have indeed recommended them already to all my neighbours and friends who have septic tanks.Thank you to all at Allerton.

John Lavender

13:07 05 Feb 25

Efficient, pleasant and polite, service completed and area left clean and tidy

Nicolas Warren

11:13 05 Feb 25

Sewage Treatment Plants are a very important part of the home and we wouldn’t trust ours to anybody else other than Allerton. They installed the system many years ago and have maintained it ever since. They are professional, knowledgeable and always courteous. They always go out of their way to help, going the extra mile every time. I can’t recommend Allerton highly enough. In fact on our recommendation, our next door neighbours have installed an Allerton system too and are as happy with it and the service they’ve received as we have been.

Annie Flavell

13:25 28 Jan 25

Allerton Bradley installed a treatment plant into our existing septic tank in 2020. Until then it had proved very problematic. Since then we have never had any problem with it, and in a couple of the years since have not had to have it emptied either. They are always friendly and approachable and very responsive. Very happy to have chosen them.

Nick Williams

13:51 09 Jan 25

Excellent company to deal with. Knowledgeable and great people. James who did the survey and Aaron who organised it.Very pleased that I chose them. Higfhly recommended.

Carrie Armitage

05:11 28 Aug 24

Allerton's work installing a new domestic sewage treatment plant was first rate. From the initial visit and quote through to the installation everything was prompt, efficient, friendly and lived up to all promises and expectations. The installation team were great to work with, and despite some interesting old drainage issues when excavating the new location and decommissioning the old septic tank, they maintained their good humour and professionalism throughout. I can highly recommend their services. Thank you.

Lisa Davidson

05:27 23 Aug 24

Excellent system and the engineer (Dayton) who carried out our annual service recently is clearly very skilled, taking the time to explain things to us and ensuring the septic tank was working correctly, he also enjoys his job which is refreshing to see. The tank still doesn't need emptying after 3 years, very satisfied!

mark quigley

10:46 16 Aug 24

Excellent service, great communication and lovely people to deal with.I first wrote this review 3 years ago and they have consistently delivered excellent service since then. Very friendly and professional

Malcolm Harrington

16:36 02 Aug 24

The Allerton team were excellent. Their work was excellent and their great attitude a credit to them and Allerton.I recommend them highly.

Catherine Whitall

15:01 26 Jul 24

Many thanks to Allerton Bradley and especially Jason, Chris, James, Aaron and the team for a top rate service from start to finish. Had a new Diamond DMS3 water treatment plant installed to replace our old septic tank. Extremely professional installation, great communication throughout from the guys on site and the office, tidy, punctual and a fantastic end result. I would say I'm not the easiest to work for, have very high standards, know exactly the job i want done, do not employ many companies as prefer to carry out most jobs myself, however it was a pleasure having these guys on site. Would not hesitate to recommend. Oh and its great to be able to use the loo's etc whenever needed rather than going to the local garden center to use their facilities!!! Many Thanks, Graham & Catherine

Shelley Williams

07:14 01 May 24

Cannot recommend Allertons enough! Excellent service with speedy attendance by an engineer and the problem of a faulty timer was resolved without being too costly! Will definitely be saving their contact number on speed dial!

Paul Scott

15:20 22 Apr 24

We have used Allerton to maintain our household pump system for several years. Always found their staff pleasant and helpful. Last weekend a fault developed which we reported on the Monday morning. By Monday afternoon they had called, identified the fault, offered advice, made the repair and everything left tidy and all with a smile.

Cherie Pearson

16:12 16 Apr 24

Great service, good to receive email reminder when service is due!Very pleasant person arrived promptly to do the service.

harriette Bradley

15:44 01 Apr 24

Fantastic service from Allerton. Chris was brilliant! He was punctual, polite and professional. The finish was outstanding. We are so pleased with the result. Would definitely recommend Allerton and Chris. Thank you so much.

Nigel Sellers

10:40 12 Jan 24

Living close to one of Hampshire's best chalk stream rivers, having the right treatment plant that is compliant and meets with the EA's stringent regulations is a necessity. Our old cesspit did not meet with the latest regulations so when we looked into changing to a sewage treatment plant Allerton gave us the reassurance and expert knowledge that we needed. The treatment plant has been installed for over a year now and we have just had our annual service. The team at Allerton are all knowledgeable, professional, helpful and courteous when ever I have needed to contact them, nothing is too much trouble. I would recommend the company and specially if you live close to a river where specialist advice is needed when considering the options of changing from a septic tank arrangement to a compliant treatment plant.

David Le Sueur

14:17 11 Jan 24

Alerton is a reliable company that thrives on clear customer contact, providing us with a no nonsense practical service that is invaluable and most necessary.Allerton personnel are pleasant, informed and helpful. We have used the company for years and intend to stay with them.Thank you Allerton for your immaculate service.