Our Nottinghamshire Sewage Treatment Services
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 in Nottinghamshire.

Looking for Sewage Treatment Plant repair, installation, or maintenance in Lincolnshire?
If you’re not sure whether your system can be repaired or if you require an alternative system, let our experts guide you to a solution that works for you. Contact Allerton for help with your sewage treatment problems.
What are our customers saying?
We are one of the most highly reviewed UK company in off-mains drainage. Read our more than 75 positive reviews.
Why Use The Diamond 6?
Need a solution to your Septic Tank Soakaway problems?
Our friendly and supportive staff will assist you every step of the way.
If your Septic Tank has failed, Allerton can:
Repair It
Add a Soakaway
Make a Septic Tank Conversion
Replace It
Need a Sewage Treatment Plant repair, installation, or maintenance in Lincolnshire?
Allerton will:
Save you money
Maintain your compliance with regulators
Help you protect the environment
Extend the life of your system
Delight you
Why Allerton?
Qualified
Allerton have 50 years of experience in drainage and sewage treatment. We also provide expert advice, much of which can be found on our blog or frequesntly asked questions page.
Value for Money
We offer a free initial on-site consultation for installations within Nottinghamshire. 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
Allerton offers a unique level of service. We can help with sizing your treatment plant, installation advice and offer a full installation service.
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.
Google Reviews
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
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.
Very pleased that I chose them. Higfhly recommended.
I first wrote this review 3 years ago and they have consistently delivered excellent service since then. Very friendly and professional
I recommend them highly.
Very pleasant person arrived promptly to do the service.
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.
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
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.
Very pleased that I chose them. Higfhly recommended.
I first wrote this review 3 years ago and they have consistently delivered excellent service since then. Very friendly and professional
I recommend them highly.
Very pleasant person arrived promptly to do the service.
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.