Sewage Treatment Plants
C&L provides professional sewage treatment plant installations, emptying, and maintenance services across Shrewsbury, Wrexham, and the wider Shropshire and Mid-Wales areas. We are a family-run business and have been working in and around drainage for over 25 years. These systems process wastewater into a treated liquid that can be discharged back into the environment and are ideal for anyone living near a watercourse. If you currently own or are looking to install a sewage treatment plant, we cover all aspects of its installation and maintenance.
- Is your current sewage treatment plant compliant?
- Does your sewage treatment plant need a service?
- Does your sewage treatment plant need emptying?
- Call our friendly team for a consultation!
Sewage Treatment Plants
Sewage Treatment Plant Installations
A sewage treatment plant can provide more options than a traditional septic tank, future-proofing your property to comply with the current regulations.
Sewage Treatment Plants
Sewage Treatment Plant Maintenance
Sewage treatment plants require annual servicing and emptying to ensure optimal performance. If your system requires servicing or emptying, simply give us a call.
Why Choose a Sewage Treatment Plant?
Many property owners in Mid-Wales and Shropshire are upgrading from septic tanks to sewage treatment plants. That said, what is the difference? A standard septic tank separates waste by gravity. Meanwhile, a sewage treatment plant uses mechanical components to aerate the bacteria inside the tank. These mechanical components include air blowers and rotating discs.
This process drastically improves the breakdown of sewage, producing an effluent that is roughly 95% clean. Because the output is so clean, it can be legally discharged into a flowing watercourse (like a stream or river) or a drainage field. This offers you much greater flexibility than a septic tank.
Navigating the General Binding Rules
Compliance is the biggest concern for our customers. Under the UK General Binding Rules, it is illegal to discharge waste from a septic tank directly into a surface watercourse. If your property currently does this, you must upgrade to a sewage treatment plant or install a drainage field.
At C&L, we specialise in these upgrades. First, we assess your site. Then, we calculate the required “Population Equivalent” (PE) to ensure your new plant can handle the load. Lastly, we manage the installation to full British Standards (EN 12566-3). We ensure you avoid Environmental Agency fines and protect the local ecosystem.
What Happens During a Service?
Because treatment plants rely on moving parts and electricity, they are not “fit and forget” systems. Regular servicing is vital to maintain the bacterial health of the unit and ensure the mechanics haven’t failed. Our comprehensive service checks include:
- Compressor/Blower Check: Ensuring the air pump is delivering oxygen to the bacteria.
- Filter Inspection: Cleaning or replacing air filters to prevent overheating.
- Alarm Testing: Verifying that your warning systems work in case of a pump failure.
- Sludge Evaluation: Measuring sludge levels to determine if a tanker empty is required.
- Effluent Quality: Visually inspecting the discharge to ensure it is clear and odour-free.
Local Experts You Can Trust
Soil conditions in Wrexham, Shrewsbury, and the Welsh borders can be challenging, ranging from heavy clay to rock. These conditions impact how you install a tank and where you can discharge water. With over 25 years of local experience, C&L understands the geology of our region. We don’t just sell you a box; we provide a fully engineered solution that guarantees longevity and peace of mind.
Don’t wait for a breakdown. Contact C&L today to discuss your installation or book a maintenance visit.

