Mainline Environmental Installation Ltd

Professional drainage services and sewage treatment in Derby, Nottingham and Leicester.

Sewage Treatment in Derby

Nottingham & Leicester

Welcome to Mainline Environmental Installations Ltd, with over 20 years experience in sewage treatment and the drainage industry our highly experienced and professional team will be able to carry out the job to the highest standard.

We have the expertise to offer you quality sewage treatment that can make a massive difference to your life. We can arrange an on-site visit to your premises to assess the area, ensuring that the best options and applications are provided to suit your needs.

Mainline Environmental Installations can offer an installation option suitable for any septic tank is in any working condition. We are recognised as installers from the manufacturers of many of products sold today. We can act on your behalf to the Environment Agency for Consent of Discharge

Our Services

With over 20 years experience in sewage treatment and the drainage industry our highly experienced and professional team are here to help you out.

Our Reviews

We have had many happy customers over the years here at Mainline Environment Installations Ltd, here are some of the reviews they have left us.

Our Products

With the manufacturer’s technology, tank design, and tank testing along with our many years of installation experience our services are second to none.

Contact Us

If you would like to learn more about any of the services we offer, feel free to get in touch with us on 01332 513617 or email

Septic Tank


Here at Mainline we understand the problems of wastewater and the impact it has on the environment and our lives. Mainline Environmental Installation Ltd, are committed to the improvement of both.

We are based in Derbyshire, the heart of the country surrounded by the peak and dales and many waterways we all love to see. Our services are offered across the East Midlands in Derby, Nottingham and Leicester.

Our aim is to help both domestic and commercial developments to conform to legislation with improved methods of waste water treatment and septic tank installation. We work closely with market leaders of the wastewater tank & septic tank manufacturers to supply and install the correct package for your application.

Client Testimonials

Find out what our many satisfied customers are saying about us after using our tank installation services.

Edmund has done a fantastic job on installing our sewage treatment plant. We couldn’t be more pleased. He was always willing to explain everything before hand and as work progressed. He did the job in the timescale he gave us and dealt with everything that was needed along the way. Edmund and his son did not seem to be phased by anything. Very professional and courteous. The finished job left the driveway looking far better than it did before! Great job.

Liz Minter
Dec 31, 2022

Edmund replaced our old septic tank with a new sewage treatment plant to comply with the change in regulations. The job presented several challenges, one being that the area available to put the new plant was small and the area to where the treated water could flow into was not straightforward. However, Edmund navigated his way around these issues professionally and successfully. His work was excellent and to a very high standard. Building Regulations were very happy with his work too. I would highly recommend Mainline Environmental Installations Ltd without hesitation.

Louise Latham
Oct 12, 2021

Edmund made a fantastic job of installing a new small sewage treatment plant on our property after we had a nightmare with our old septic tank and drains. It was a very complex job that required some lateral thinking but Edmund came up with a great solution that met Building Control requirements. The standard of work is excellent and overall we are very satisfied. The price was as per initial quote despite several complications cropping up and Edmund worked through the biblical rain to get the job done. The area looks better now than before he started. Highly recommended.

Nick Smith
Nov 16, 2019
Get In Touch

Have Any Questions?

If you would like to learn more about any of the services we offer, feel free to get in touch with us. Call 01332 220 629. Alternatively, you can complete our online enquiry form and a member of our professional and experienced team will be there to help. You can also visit our Facebok page for the latest updates.