Sussex Best Sewage Treatment Plant Installation Company

Award winning drainage engineers specialising in septic tanks, cesspits, and sewage treatment plants. We work with all foul water systems, soakaways & more

Septic Tanks & Treatment Plants

We offer peace of mind installation for any domestic or commercial treatment plants.

Drainage & Surveying

We work to install your new drains as quickly and efficiently as possible.

Water Pipe Installation

We install underground water pipes to houses and farms, over any distance.

Pond Installation & Maintenance

We install and maintain a wide range of ponds with various materials, shapes and sizes.

Why are we the leading sewage treatment plant installation company in Sussex?

Sussex Water Drainage Ltd offers a totally conclusive service from start to finish, paperwork management, and an above-and-beyond finishing service to restore your garden. We’ll guide you step-by-step through the process and answer all of your questions. We guarantee to beat any professional quote for a sewage system installation.

We use our years of experience as fully trained award winning engineers to ensure only the best quality of work is undertaken and that you clearly understand the best options available to you. Saving you time, cost, and headaches at every step.

Sussex Water & Drainage

A reliable, honest service you can trust

We are familiar with all regulations surrounding Sewage Systems & Waste Water Tank installations including Septic Tanks, Holding Tanks, Cesspits and Sewage Treatment Plants. Working closely with Building Control Officers & the Environment Agency to provide East Sussex, West Sussex & Kent home and business owners with fully legal sewage treatment systems that meet their requirements.

Our specialist teams are experienced in dealing with all requirements, no matter how big or small. Wherever possible we leave the lowest visible impact. That’s why we often install below ground systems with small lids, perfectly level manholes and why we dedicate an entire day to restoring your garden to look as close to how it did before we started as possible

We call this our above-and-beyond finishing service. This not only includes re-turfing areas we de-turf, but, also landscaping your garden to match it’s original appearance and finishing with grass seed.

Why Sussex Water Drainage Ltd?

We have heard of many companies offering attractive estimates for work, only to bump up the price with expensive hidden extras. Needless to say we do NOT believe in this and our quotes are fixed unless the work dramatically changes, in which circumstance we run everything by you first. We make sure our quotes are the most competitive around which is why we guarantee to beat any professional quote on installations.

We have been awarded the 2022 SME Southern Enterprise Award for “Best Treatment Plant Specialists – South East”. The award was granted to us based on having a 100% customer satisfaction record, the lowest installation prices in the South East and our business growth. Go to for more information.

Every member of our team takes the upmost care towards your property and we like to treat our workspace as if it were our own garden. This is why we are the only company to feature an above and beyond finishing service as standard and totally FREE. This includes releveling and reseeding of all disturbed areas to the highest standard. We always ensure our customers are happy with the way things are left, our finishing service is so good that most of the time you won’t even know we’ve been.

All of our team are experienced drainage engineers. Between us we have installed hundreds of Sewage Treatment Plants and Septic Systems across the South East. We are also one of very few recommended installers of the BioPure, WPL Diamond and Marsh sewage treatment plants.

Treatment Plants and Septic Tank Installation is our main business and we pride ourselves at being the best! More than your average installer, our engineers pride themselves in being the number 1 team for Treatment Plant Installations in the UK. We have spent many years in this industry, figuring out the perfect solutions and dealing with a wide variety of tasks and challenges. We’ll keep you informed at every step. This extends to organising certification of the new system on your behalf, giving you a guaranteed regulation compliant, environmentally friendly, and legal waste treatment system. There is nothing our engineers can’t handle.

We employ an ethos of getting things right first time, our team will take the time to carefully consider all the options while taking time to analyse the best solution for you. Careful consideration is paid to every customer requirement without fail to give you conclusive results every time! This is why many of our customers ask us to undertake further work while on-site, which of course, we are happy to assist.

Not only do our recommended Treatment Plants frequently feature the lowest visual impact of ALL treatment plants available. We also decommission your old system at the same time, usually disposing the unsightly lid of the old system and returning the area to another beautiful part of your garden to enjoy. Our customers are thrilled that alongside their new systems, we can tidy up their old system, making significant improvements on their garden appearance space.

It’s important to us that your job is completed in a timely manner, if council approval is required this can take up to 2 weeks from you first contacting us, to being connected to your newly updated system. However, we have even dealt with emergency installations where a customer has contacted us and been connected to their newly installed Treatment Plant less than 24 hours later. We also believe every customer deserves exceptional communication, which is why we have a 7 day a week landline and 24-hour mobile contact available, offering everything from on the spot advice to our extensive range of professional services.

We take care of the lot while keeping you informed the whole way through. Obtaining the relevant forms, communicating with your local council, and finding an appropriately qualified electrician can be tricky. This is why we simplify and take care of everything on your behalf to ensure your sewage system is certified correctly. This is something we do everyday and we are proud to maintain a 100% pass rate of certification on your new system.

Once we have neatly returned your garden to exactly how we found it, that’s not where our care and service finished. We are on hand any time after, Free of charge, should you experience any slight trench sinking or should additional grass need re-sowing. We go above and beyond to ensure you get the best job and service possible. This is both our family ethos and company guarantee!

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