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Sewage Treatment Plants

For Sewage Treatment Plant installation, repair, and maintenance in the South of England, call Smart Drainz on 03332 027129.

For Sewage Treatment Plant installation, repair, and maintenance in the South of England, call Smart Drainz on 03332 027129.

For Sewage Treatment Plant installation, repair, and maintenance in the South of England, call Smart Drainz on 03332 027129.

For Sewage Treatment Plant installation, repair, and maintenance in the South of England, call Smart Drainz on 03332 027129.

- Smart Drainz -

STP Installation, Repair & Maintenance from a Trusted Drainage Contractor for Portsmouth, Hampshire & the South of England

Diagram of a wastewater treatment tank with labeled components: primary section, aerated section with plastic media, air diffuser, air compressor, air lift, inlet, and outlet. Arrows indicate flow direction from inlet to outlet through sections—a handy guide for any drainage contractor facing blocked drains.

For expert sewage treatment plant services in Dorset, Hampshire, Somerset, Surrey, West Berkshire, West Sussex, and Wiltshire—in fact anywhere in the South—you can rely upon Smart Drainz. Our team of highly skilled engineers handles installation, maintenance, and repair, ensuring that domestic, commercial, and industrial clients can keep their sewage treatment plants and wider wastewater management systems functioning year-round without issue.

Read on to learn more about this aspect of what we do. Alternatively, check out related service pages to discover other areas of speciality, such as our work on pump stations, attenuation tanks, septic tanks, and a comprehensive range of drainage services.

If you’re located in Andover, Beaulieu, Bournemouth, Brockenhurst, New Forest, Portsmouth, Ringwood, Salisbury, Southampton or any surrounding locations in the South of England, we’re the drainage contractor to call.

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Sewage Treatment Plant Services

At Smart Drainz, we offer a comprehensive range of services for sewage treatment plants, ensuring efficient and environmentally friendly wastewater management. Our offerings include:

  • New Installations: We specialise in installing modern, efficient sewage treatment plants for properties of all sizes.
  • Annual Maintenance & Emptying: Keeping your system running smoothly and meeting environmental standards.
  • Fault-Finding & Repairs: Diagnosing and resolving issues promptly to prevent costly disruptions.

Wherever you are in the South of England, our team of professional drainage engineers is here to help you keep your STP above board and in good health.

What Are Sewage Treatment Plants & How Do They Work?

Sewage treatment plants are an advanced alternative to traditional septic tanks. They process wastewater from households and businesses, breaking it down into clean, safe effluent that can be discharged into the environment. These systems use a combination of biological and mechanical processes to treat sewage effectively.

How They Work:

  • Primary Treatment: Solids settle at the bottom and form sludge, while oils /grease rise to the surface
  • Secondary Treatment: Microorganisms break down organic matter in the wastewater
  • Final Treatment: The remaining effluent is filtered and discharged, meeting environmental regulations

Replacing outdated septic tanks with modern sewage treatment plants not only enhances performance but also reduces environmental impact. If you're in the areas we cover, Smart Drainz is the drainage contractor you can trust.

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Installation

Our sewage treatment plant installation services cater to domestic, commercial and industrial properties. We ensure every installation is tailored to your specific needs and fully compliant with environmental regulations.

Installation Process:

  • 1. Site Survey

    Our drainage engineers conduct a thorough assessment to determine the ideal system for your property.

  • 2. System Design

    We design a bespoke solution to handle your wastewater requirements.

  • 3. Installation

    Using advanced techniques and high-quality materials, we install sewage treatment plants with minimal disruption.

  • 4. Commissioning

    We test and certify the system to ensure it meets operational and regulatory standards.

Every installation is backed by our 10-year guarantee for your peace of mind.

A red excavator is parked beside a large, freshly dug rectangular pit on a gravel surface near old stone buildings with tiled roofs.

Maintenance

Regular sewage treatment plant maintenance is essential to keep your system functioning efficiently and to protect the environment. Smart Drainz offers comprehensive maintenance packages including:

  • Annual Inspections: Ensuring all components are in good working order
  • System Emptying: Safely removing accumulated sludge to prevent blockages
  • Routine Servicing: Replacing filters, pumps and other components as needed

Our experienced drainage engineers are equipped to handle all aspects of sewage treatment plant maintenance, ensuring your system remains compliant with environmental regulations. Across the South of England, we travel far and wide to keep STPs in peak condition.

Repair

Smart Drainz specialises in diagnosing and repairing faults in sewage treatment plants. Using state-of-the-art equipment and techniques, we can address a wide range of issues including:

  • Electrical Faults: Repairing or replacing malfunctioning pumps and control panels
  • Mechanical Failures: Restoring damaged aerators, compressors and motors
  • Structural Damage: Fixing leaks, cracks or compromised tanks

Our Repair Process:

  • Diagnosis: Using advanced tools, we identify the root cause of the problem
  • Repairs: Our team implements efficient, lasting solutions
  • Testing: We verify that your system is fully operational before completion

If you’re encountering issues with your STP, contact drainage contractor Smart Drainz today, our professional team is happy to offer advice based on our vast industry experience.

A person installs underground pipes and a water meter box in a dug trench near a building with a red wall. Blue and orange pipes are visible, along with tools and a cable reel on the ground.
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Contact Smart Drainz Today