Sewage Treatment Plant Installation in Mid-Wales
If your property in Mid-Wales is off the main sewer network, a sewage treatment plant (STP) is the most effective and sustainable way to manage wastewater. At C&L 24Hr Emergency Drainage, we provide professional sewage treatment plant installation throughout Mid-Wales, including Welshpool, Newtown, Llanidloes, Llandrindod Wells, Machynlleth, and beyond.
With over 25 years of hands-on experience and a reputation for high-quality craft, we deliver a full turnkey solution, from design and compliance to excavation and commissioning.
Why Choose a Sewage Treatment Plant?
Sewage treatment plants actively process wastewater from kitchens, bathrooms, and appliances using natural biological treatment. The result is a much cleaner effluent than what a septic tank produces, safe to discharge into nearby watercourses or drainage fields.
All our installations meet the required EN12566-3 certification and comply with the Environment Agency’s General Binding Rules. Choosing a treatment plant is not only a long-term investment in your property but also a commitment to protecting the environment of Mid-Wales.
Full End-to-End Installation Service
We manage the entire process:
1. Free Site Survey
We assess access, ground conditions, property occupancy, and discharge routes. Whether you’re in a rural cottage or running a commercial enterprise, we’ll tailor the solution to your needs.
2. System Design and Selection
We specify the correct size unit based on your usage, using trusted manufacturers like:
- Tricel
- Klargester (Kingspan)
- WPL
- BioPure
- Graf
- Clenviro
All units are EN-certified and eligible for EA discharge permits or exemptions.
3. Planning and Compliance
If required, we’ll assist with planning permission and Environment Agency permits. For many properties, no formal permit is needed, but we’ll guide you through it step by step.
4. Groundworks and Installation
Our team excavates, installs, connects, and tests the system. This includes electric supply, blower connection, and setting up alarms or telemetry if required.
5. Commissioning and Handover
Once installed, we’ll commission the unit and provide a detailed walkthrough on how to maintain and monitor it. We also offer ongoing maintenance packages.
Domestic and Commercial STP Installations
Whether you’re replacing an outdated septic tank, building a new property, or running a rural business, we provide:
- 6–50+ population equivalent systems
- Bespoke configurations for holiday parks, farms, and guesthouses
- Upgrades from non-compliant systems to meet new regulations
Why Choose C&L?
- 24/7 availability for questions and support
- Local Mid-Wales team based in Welshpool
- Over 25 years of drainage experience
- WJA-accredited engineers, fully insured
- Transparent quotes with no hidden costs
- High customer satisfaction ratings on Google and Facebook
Why Choose C&L?
We install treatment plants across:
- Aberangell
- Arddleen
- Belan
- Berriew
- Bettws Cedewain
- Buttington
- Bwlch-y-abau
- Caersws
- Carno
- Castle Caerinion
- Cefn Coch
- Chirbury
- Churchstoke
- Crew Green
- Dolanog
- Dolfach
- Foel
- Forden
- Four Crosses
- Guilsfield
- Leighton
- Llanbrynmair
- Llandrinio
- Llandyssil
- Llanerfyl
- Llanfair Caerinion
- Llanfechain
- Llanfyllin
- Llangadfan
- Llangynyw
- Llanidloes
- Llanrhaedr-ym-mochnant
- Llansantffraid
- Llanymynech
- Llwydiarth
- Meifod
- Montgomery
- Penhros
- Pentrobert
- Penybontfawr
- Sarnau
- Talerddig
- Trefeglyws
- Trefnanney
- Trewern
No matter how rural your location, we’ll get the job done quickly, legally, and professionally.
Get Started with a Free Quote
Whether you need a new installation or are upgrading from a septic tank, we’re here to help.
Choose C&L 24Hr Emergency Drainage for safe, compliant sewage treatment plant installation in Mid-Wales.
Request a Free Estimate
Fill out the form to the right, or alternatively give us a call on the number below:

