Sewage Treatment Plant Installation
If your property isn't connected to the mains sewer, we can supply and install a sewage treatment plant to treat your wastewater on site — for homes and businesses across Hampshire, Dorset and Wiltshire.
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Treating wastewater where there's no mains sewer
A sewage treatment plant is a sealed underground tank that treats the wastewater from your home or business. Unlike a basic septic tank, it actively breaks down the waste so that the water leaving the plant is much cleaner and can be discharged to a soakaway or, where permitted, a watercourse.
Treatment plants are a common choice for properties without a mains connection, and for replacing an old septic tank or cesspit.
Common reasons for a new treatment plant
We look at your property and existing drainage, then explain the options and the cost before any work starts.
Request a Free QuoteNew builds and conversions
Properties being built or converted where there's no mains sewer nearby.
Replacing a septic tank
Older septic tanks that are failing or no longer suitable.
Replacing a cesspit
Cesspits that need emptying too often to be practical.
How a treatment plant installation works
- 01
Site visit
We look at the property, the existing drainage and where the treated water can go.
- 02
Clear quote
We recommend a suitable plant and explain the cost before any work starts.
- 03
Installation
Our engineers install the plant and connect it to your drains and outfall.
- 04
Handover
We check everything is working and talk you through how the plant runs.
We supply and install sewage treatment plants for homes and businesses off the mains
Drainage Services Across Hampshire, Dorset & Wiltshire
From our base in Ringwood we have engineers working throughout all three counties, serving homes, schools, pubs, restaurants and local businesses.
- Engineers across the regionFully equipped vans working throughout all three counties.
- Homes and businessesSchools, pubs, restaurants and local businesses as well as households.
Source: Office for National Statistics licensed under the Open Government Licence v3.0. Contains OS data © Crown copyright and database right 2024
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Do I need a sewage treatment plant?
If your property isn't connected to the mains sewer, you need a way to deal with your wastewater on site. A treatment plant is one of the main options, particularly when replacing a septic tank or cesspit.
What's the difference between a septic tank and a treatment plant?
A septic tank mainly separates solids from liquid. A treatment plant actively treats the wastewater, so the water it discharges is much cleaner.
Where does the treated water go?
Usually to a soakaway in the ground, or to a watercourse where that is permitted. We look at the options during the site visit.
Do you install treatment plants for businesses?
Yes. We install sewage treatment plants for homes and for commercial properties that aren't on the mains sewer.
Contact Us Today
Off the mains sewer? Talk to our team about a treatment plant.
Need a Drainage Specialist?
Tell us about the problem and our team will help arrange the right drainage service.
- Call us 24/70333 200 4747
- Email usinfo@
drainlineservices.co.uk - Based inRingwood, Hampshire
- Opening hours24 hours, 7 days a week
- 24/7 emergency callouts
- Family run for 20+ years
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