Commercial & Domestic Sewage Treatment Plant Installation

Drain Surgeons Group provides comprehensive domestic and commercial sewage treatment plant installation across Reading and the wider UK. Operating as specialized environmental engineers, we manage the complete lifecycle of off-mains wastewater infrastructure—from topographical percolation testing and Environment Agency compliance to low disruption sewer system installation and final electrical commissioning.

Professional Sewage Treatment Plant & Septic Tank Installations in Reading & Surrounding Areas - Drain Surgeons Group

As specialized commercial sewage treatment plant installers, Drain Surgeons engineers end-to-end off-mains wastewater solutions nationwide. We execute every domestic sewage treatment plant installation strictly to Environment Agency General Binding Rules, ensuring structural longevity, optimal aerobic digestion, and total environmental compliance.

Why Choose Drain Surgeons Group for Sewage Treatment Installation?

Full End-to-End Service

We take care of every stage: site surveys, percolation testing, system design, civil engineering, tank supply, installation, commissioning and maintenance.

Experienced, Qualified Engineers

All work is supervised and executed by trained drainage and environmental engineers with years of hands-on experience.

Fully Compliant Installations

We ensure that all systems meet current UK legislation and industry standards for small sewage discharges and private drainage systems.

Premium Equipment from Leading Manufacturers

We supply only proven, reliable sewage treatment plants and septic tanks, manufactured by trusted brands approved for UK use.

Transparent Pricing

Every project includes a clear, written quotation, method statement, installation breakdown and maintenance recommendations.

Our Sewage Treatment Plant Installation Services

We offer domestic and commercial sewage treatment plant installation services.

Domestic & Commercial Sewage Treatment Plant Installations

Sewage treatment plants are the ideal solution for properties without access to the mains sewer. These advanced systems treat wastewater to a clean, environmentally safe standard before it is discharged into a watercourse or drainage field. At Drain Surgeons Group, we specialise in both domestic and commercial installations, delivering robust systems built to perform reliably for many years.

Our service includes the complete installation process:

Site Assessment: We survey your property, assess ground levels, check access, and determine the best discharge solution.
System Design & Specification: We select the appropriate plant based on occupancy, usage levels, and site conditions to ensure optimum performance.
Excavation & Civil Works: Our engineers carry out all excavation, concrete base preparation, backfilling, and reinstatement with minimal disruption.
Pipework & Electrical Installations: We install all required inlet/outlet pipework, airline connections, control panels, and electrical wiring.
Testing & Commissioning: Once installed, we test the system thoroughly to ensure it meets operational requirements and provide full user guidance.

Whether it’s a small domestic system for a family home or a larger solution for commercial premises such as offices, schools, caravan parks or leisure facilities, we deliver a seamless end-to-end service.

Our installation process is fully managed from initial survey through to commissioning, client handover and ongoing support. Every project is overseen by an experienced on-site coordinator who keeps customers informed throughout each stage of the installation process.

We also carry out detailed pre-start safety checks, CAT scanning, electrical testing and final commissioning to ensure every sewage treatment system operates safely, efficiently and in full compliance with current UK regulations.

Septic Tank Installations, Upgrades & Replacements

When decommissioning or replacing a legacy septic tank, Reading property developers and homeowners require precision engineering. Drain Surgeons Group deploy advanced trenching and topographical mapping to guarantee a low disruption sewer system installation. Our civil teams manage all concrete base preparations, electrical routing, and soil reinstatement without compromising ongoing site operations.

Our septic tank services include:

New installations for homes and rural properties
Upgrades for tanks that no longer function effectively
Replacement of outdated or non-compliant tanks
Safe removal and decommissioning of old systems

We ensure all installations meet current regulations, including rules prohibiting the discharge of untreated wastewater into surface water. For older systems that no longer comply, we can recommend cost-effective upgrade options, ensuring full environmental compliance.

Soakaways & Drainage Fields

A properly constructed drainage field is crucial for septic tanks and some treatment plant installations. Incorrect design can lead to overloading, flooding, foul odours and system failure.

We handle everything required for a compliant and long-lasting drainage field:

Percolation Testing (Perk Test): Determines ground suitability and absorption rate.
Drainage Field Design: Ensures correct sizing, layout and pipe fall for efficient dispersal.
Installation: High-quality perforated pipework, gravel bedding, geotextile membranes, and venting to maximise the lifespan of the system.

Our engineered soakaway solutions ensure treated effluent disperses safely into the surrounding soil without causing pollution or surface flooding.

Pump Stations & Associated Drainage Works

On many sites, gravity alone cannot move wastewater from the property to the treatment plant or discharge point. In such cases, we install high-reliability pump systems that provide safe and efficient wastewater transfer.

Our pump station services include:

Supply and installation of pump chambers
Fitting of submersible pumps, floats and alarms
Rising main pipework installations
Electrical connections and control units
Access covers and inspection points for easy maintenance

We design pump systems to match the site’s daily flow output, ensuring optimal performance and reduced risk of breakdown.

Servicing, Emptying & Ongoing Maintenance

Even the most advanced treatment plants and septic tanks require regular maintenance to remain efficient. Without routine care, systems can become overloaded, blocked or damaged, leading to costly repairs.

Drain Surgeons Group provide:

Scheduled services (quarterly, biannual or annual depending on system type)
Routine desludging to prevent solids buildup
Mechanical and electrical checks including blowers, pumps, diffusers and media
Reactive breakdown support with 24/7 call-out availability
Compliance checks to ensure your discharge meets environmental requirements

Proper maintenance extends the lifespan of your equipment, protects the environment, and saves you money in the long term.

Pre-Purchase Private Drainage Surveys

Buying a property with a septic tank or sewage treatment plant can be risky without knowing the true condition of the system. Many older setups are non-compliant or require costly upgrades issues that often become apparent only after purchase.

Our drainage surveys provide:

Full inspection of the tank, plant or drainage field
Condition reporting including structural integrity, inlet/outlet condition and sludge levels
Compliance assessment against current government rules
CCTV drain surveys where required
Repair or upgrade recommendations with clear cost guides

We provide written reports designed for buyers, sellers and solicitors, helping you make informed decisions and avoid unexpected expenses.

Installation Process - How We Work

1. Free Site Survey

We visit your property, evaluate space, access, ground levels and potential discharge options.

We also review client requirements and identify the most suitable installation options based on site conditions, discharge locations and future maintenance access.

2. Safety Plan

Before work begins, we develop a site-specific safety plan covering:

Site access
Ground conditions
Machinery and plant access
Staff welfare facilities
Customer-specific requirements

This helps ensure the installation is completed safely, efficiently, and with minimal disruption to your property.

3. Pre-Start Checks

Before excavation starts, we carry out comprehensive pre-start safety checks to minimise project risk and avoid damage to existing services.

This includes:

CAT scanning to identify buried utilities
Existing drainage and pipework checks
Safety inspections
Verification of discharge routes and installation levels

As utility drawings are not always accurate, these checks are an important part of our installation process.

4. System Selection

Based on capacity needs, occupancy, soil conditions and discharge route, we recommend the most suitable treatment plant or septic system.

We supply trusted systems from leading manufacturers including BioDisc and BioAir treatment plants designed for reliable long-term performance and environmental compliance.

5. Design & Permissions

We assist with necessary documentation, regulatory requirements and ensure full compliance with UK small sewage discharge rules.

Where required, we also advise on:

Environment Agency General Binding Rules
Drainage field requirements
Discharge consents
Building regulations compliance
Electrical certification requirements

6. Civil Engineering & Excavation

Our team handles all excavation and groundwork required for the installation process.

This includes:

Excavation to the required depth
Concrete base preparation
Tank lowering and positioning
Treatment plant installation
Filling the treatment plant with water during installation
Concrete surround installation where required
Installation of inlet and outlet pipework
Manhole installation ready for house connection
Outlet pipe connection to the discharge point
Backfilling and compaction works
Grass seed or turf reinstatement where required
Final site tidy-up

For BioAir systems, we also install the blower box base and associated housing units where required.

7. Pipework, Electrical Installation & Control Equipment

We install all required:

Inlet and outlet pipework
Airline connections
Electrical cabling
Control panels
Blower systems
Inspection chambers and manholes

Electrical cables are installed within dedicated trenches ready for safe connection to the control panel or blower unit.

For BioDisc systems, the control panel frame is installed and prepared for commissioning.

8. Electrical Hook-Up & Commissioning

A qualified electrician completes all electrical connections and tests the treatment plant to ensure the system is fully operational.

This includes:

Blower and pump testing
Electrical safety checks
Alarm and control panel testing
Operational commissioning
System performance checks

Once complete, we provide full operational guidance to the customer.

9. Client Review

Once installation is complete, the on-site coordinator reviews the finished project with the customer to ensure all work has been completed to the highest standard.

Any final adjustments or outstanding items are identified and resolved before project sign-off.

10. Handover, Certification & Maintenance

Following completion of the installation and final operational checks, we provide:

Compliance certificates
Electrical safety certification
Manufacturer warranty documentation
Operational guidance and maintenance recommendations

We also offer ongoing servicing packages to help ensure your treatment system remains compliant, efficient, and environmentally safe for years to come.

Recommended Systems We Install

We regularly install high-quality sewage treatment systems including BioDisc and BioAir treatment plants.

BioDisc Sewage Treatment Plants

Silent operation
Low running costs
Reliable long-term performance
Minimal odour
Up to 7-year warranty

BioAir Sewage Treatment Plants

Suitable for shallow dig applications
Low visual impact
Easy to install and maintain
Economical operation
Up to 3-year warranty depending on model

Equipment & Manufacturers

We work with leading UK and European brands known for high-quality packaged treatment systems. All equipment we supply is durable, efficient, and supported by manufacturer warranties. Our engineers are experienced in installing a wide range of models and can recommend the best option for your site.

Compliance: What You Need to Know

The UK Government requires septic tanks not to discharge untreated wastewater into a watercourse.
Properties selling or transferring ownership must ensure private drainage systems are compliant or upgraded.
Modern sewage treatment plants produce treated effluent clean enough to discharge safely to a watercourse, subject to rules.
Drain Surgeons Group can advise whether you need a treatment plant, drainage field or connection to the mains sewer.

Cost Guide - How Much Does a Sewage Treatment Plant Installation Cost?

Installation costs vary depending on:

Tank size (population equivalent)
Ground conditions and soil type
Excavation complexity
Access for machinery
Requirement for a pump station or drainage field
Electrical supply distance
Discharge type (soakaway vs watercourse)

As a general guide, domestic installations typically fall within a broad mid-range cost band once survey and exact conditions are considered. A detailed fixed-price quotation is always provided after the site assessment.

Contact us for more information

Warranty & Support

Manufacturer warranties are passed directly to our customers.

BioDisc sewage treatment systems include up to a 7-year manufacturer warranty, while selected BioAir systems include warranties of up to 3 years depending on the model installed.

All installation work is guaranteed for a defined multi-year period, detailed within your quotation documentation.

To remain compliant with Environment Agency General Binding Rules, sewage treatment systems should be regularly serviced and maintained to ensure they continue operating effectively and do not cause pollution.

Drain Surgeons Group offer:

R
Annual servicing packages
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Routine maintenance
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Mechanical and electrical inspections
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Emergency breakdown support
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Replacement components and repairs
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Ongoing compliance assistance

Optional maintenance packages help protect the lifespan, efficiency and reliability of your investment.

Service Area & 24/7 Response

At Drain Surgeons Group, we proudly deliver sewage treatment plant and septic system services across the entire UK. Whether you’re in a remote rural village, a busy town centre, or a new-build commercial development, our teams are fully equipped to reach you quickly and carry out installations, repairs and maintenance with minimal disruption.

Our engineers operate from multiple regional hubs, allowing us to cover a wide service area efficiently. This means faster response times, better availability, and reliable support no matter where your property is located.

Nationwide Coverage Includes:

Residential homes
New-build developments & conversions
Farms, rural estates & agricultural properties
Commercial premises, industrial units & business parks
Hospitality & leisure sites such as caravan parks and holiday homes
Municipal buildings, schools and community facilities

From initial surveys to full installations, we ensure consistent service standards across all regions.

Emergency Support - 24 Hours a Day, 7 Days a Week

Wastewater issues can escalate quickly, often without warning. That’s why Drain Surgeons Group offer a true 24/7 emergency response service.

No matter what time of day or night, our dedicated emergency teams are ready to assist with:

Treatment plant failures
Blocked or overflowing septic tanks
Pump station breakdowns
Alarm activations
Flooding or system backups
Unexpected odours or discharge issues

We understand the urgency of these situations and prioritise emergency call-outs to restore safe, efficient operation as quickly as possible.

With fully equipped service vehicles, experienced engineers and immediate phone support, you can rely on us to respond fast and resolve issues before they become costly emergencies.

FAQs

1. Do you manage the electrical wiring for a domestic sewage treatment plant installation?

Yes. A mechanical sewage treatment installation requires a dedicated electrical supply to power the internal aeration blowers and discharge pumps. Our in-house, fully certified electricians manage all trenching, armored cable routing, control panel mounting, and final safety commissioning, providing you with a single-contractor solution.

2. Are you certified commercial sewage treatment plant installers?

Yes. We engineer high-capacity off-mains wastewater infrastructure for commercial entities, including hospitality venues, agricultural estates, and industrial parks. We size and install bespoke multi-chamber systems designed to handle aggressive commercial effluent and peak hydraulic flow rates while remaining strictly compliant with environmental discharge laws.

3. What is a percolation test, and why is it required before a sewage treatment installation?

A percolation test (or 'perc test') is a mandatory geological assessment used to determine the absorption rate of the subsoil. Before designing the drainage field (soakaway) for any sewage treatment plant, we must mathematically calculate how quickly the surrounding earth can safely absorb the final treated effluent without causing surface flooding or groundwater contamination.

Our Reviews

We're delighted to receive consistently positive testimonials for our work, and to have built a reputation we can be proud of. See what our satisfied customers have said.

      EXCELLENT  
   Based on 454 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Darren Colman 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very professional from start to finish.
Fast response and the guys who came out really knew their stuff.
Clear pricing with no hidden charges.
Would highly recommend this company.
  
 
      Posted on Google  
   
   Charles Wind 
 
 
 
 Trustindex verifies that the original source of the review is Google. Super quick response in just a few hours and Victor did an excellent job. I was kept informed throughout and Victor left the job site clean & tidy
  
 
      Posted on Google  
   
   Chandra Shrestha 
 
 
 
 Trustindex verifies that the original source of the review is Google. Outstanding job beginning to finish. Thank you for solving the problem out. I am so grateful for your service and support may the our Lord Jesus Christ bless you continue abundantly.
  
 
      Posted on Google  
   
   Dilveer Ghosal 
 
 
 
 Trustindex verifies that the original source of the review is Google. Outstanding Service from Start to Finish

I contacted Drain Surgeons today at 5:20 PM after leaving a Google review, and was quickly greeted by a lovely lady named Flo. From the very first moment, she showed nothing but kindness, professionalism, and efficiency. Within 45 minutes, an engineer called Lucas was already on-site—unbelievable response time!

A payment promise was arranged quickly, and the service was excellent value for money. The engineer Lucas who attended was not only highly competent but also an absolute gentleman. He ensured the issue was fully resolved before leaving, all within a three-hour window.

Flo and the team at Drain Surgeons made what could have been a stressful situation seamless and reassuring. I would highly recommend this company to anyone in need of reliable, fast, and courteous drain unblocking services in Reading. Five stars!
  
 
      Posted on Google  
   
   Andy Parker 
 
 
 
 Trustindex verifies that the original source of the review is Google. Tony provides a first class service.  He was ever so helpful in explaining how the block likely occurred, working with enthusiasm, professionally and is an ambassador to the company he works for.  Polite and courteous at all times, Tony was simply fantastic.
  
 
      Posted on Google  
   
   Gokhan Altan 
 
 
 
 Trustindex verifies that the original source of the review is Google. Outstanding service, even on a Sunday and during an urgent situation. They arrived within an hour and resolved the issue quickly and efficiently. Highly recommend for their prompt and reliable support
  
 
      Posted on Google  
   
   Semih OZER 
 
 
 
 Trustindex verifies that the original source of the review is Google. my kitchen waste pipe was blocked, called them within 30 minutes Engineer  Victor Revadavia came, and fixed problem. he is so kind, and helpful. definitely recommended.
  
 
      Posted on Google  
   
   Benjamin Cummins 
 
 
 
 Trustindex verifies that the original source of the review is Google. I had a blocked drain from the kitchen and a Man named Tony came round to unblock it. I have had an issue 4 times over the last 10 years and had other companies out to fix it but they didn’t do a great job, but Tony has done a better job then any of the previous visits from other companies, I watched him in and throughout and he has drained and cleaned the pipes to the best I have ever seen, the amount of build of grease and oil and whatever stuff that he cleaned out was amazing, a stand up chap, great work ethic, will definitely be using your company in the future.
  
 
      Posted on Google  
   
   Richard Butcher 
 
 
 
 Trustindex verifies that the original source of the review is Google. Monday evening external drain blocked, flowing onto patio. Engineer Tony Murrell came.  After some initial investigations and testing, together we located the neighbour as the drain access.  Then Tony was able to swiftly clear the blockage,  which we subsequently, successfully flushed through.  All good. Cause was identified as probably due to a relocated drain access point, which resulted in a pipe diameter change, so a place for debris to dwell.  Check the rest of the drain, looked in great condition, as we have water softener.
Good discussions together throughout.
Thank you Drain Surgeons!