Oswestry · SY10, SY11

Sewage Treatment Plant Installation in Oswestry

Design and installation of package sewage treatment plants for homes and small businesses, including upgrades from non-compliant septic tanks. Serving Oswestry and the surrounding villages, including Whittington, Gobowen, St Martin’s, Trefonen.

Call 01743 562954 Get a price

Photo: Peter Broster · CC BY 2.0

A package sewage treatment plant treats waste water to a far higher standard than a septic tank, clean enough that the treated effluent may legally discharge to a watercourse as well as to ground. For many rural Shropshire properties, especially those on heavy clay where soakaways struggle, a treatment plant is now the most practical route to a compliant system.

Off-mains drainage is everywhere in the Oswestry hinterland. The upland villages west of the town were never economical to sewer, and even larger settlements have unsewered edges. Border properties often date from an era when a brick-built tank and a pipe to the nearest ditch was standard practice, an arrangement the 2020 rules now require owners to change.

Treatment plants are also the standard answer for properties caught by the 2020 General Binding Rules. If your existing septic tank discharges directly to a ditch, stream or brook, that arrangement is no longer permitted and a treatment plant upgrade is one of the two recognised fixes.

Ground conditions around Oswestry

Ground splits with the landscape. The plain east of town carries glacial clays where percolation is often poor and drainage fields need generous sizing, while the uplands to the west bring shallow, stony soils over rock, steep falls, and spring lines that can put water exactly where you do not want it.

Watercourses and the rules around Oswestry

The area drains towards the Severn and the Vyrnwy, through a mesh of upland streams and field ditches. Watercourse proximity is the norm rather than the exception around Oswestry, which makes the General Binding Rules a live issue for a great many tanks in these hills.

What the service includes

Plant sizing based on bedrooms and occupancy, not guesswork
Supply and installation of plants certified to EN 12566-3
Upgrades from failed or non-compliant septic tanks, including tank decommissioning
Drainage field or watercourse discharge arrangements that meet the General Binding Rules
Electrical connection, commissioning and handover
Ongoing annual servicing once the plant is in

Where we go around Oswestry

As well as Oswestry itself, we cover the surrounding villages and farms, including Whittington, Gobowen, St Martin’s, Trefonen, Pant, Llanymynech, Kinnerley, Ruyton-XI-Towns, Weston Rhyn. If you are somewhere smaller or somewhere between, call anyway: if the lane goes there, so do we.

Sewage Treatment Plant Installation: common questions

What is the difference between a septic tank and a treatment plant?

A septic tank only settles solids out and relies on the ground to finish the job, so it may only discharge to a drainage field. A treatment plant actively treats the waste using air and bacteria, producing effluent clean enough to discharge to a watercourse under the General Binding Rules.

Do treatment plants smell or make noise?

A correctly installed and serviced plant should produce no noticeable odour. The air blower makes a low hum, similar to a fish tank pump, and is normally housed where it will not be heard.

How long does installation take?

Typically two to five days on site for a domestic plant, depending on access, ground conditions and whether a drainage field is being installed at the same time.

Need sewage treatment plant installation in Oswestry?

Call for straight answers and a fair price, or send the form and we will come back to you promptly.

01743 562954 Request a quote