Find out whether a mains sewer connection is practical and what will affect the cost. AFS supports the survey, Section 106 application, excavation, installation and reinstatement across Hampshire, Surrey and West Sussex.
Send an enquiry, request a callback or call us for practical advice on your sewer connection project.
For a no-obligation quote or advice on your main sewer connection, use the buttons below.
Or just call us — we’ll handle the rest.
01420 561661Choosing the right contractor for a main sewer connection is important. Poor planning, incorrect gradients, unsuitable pipe routes or incomplete reinstatement can lead to avoidable drainage problems later.
Our drainage and wastewater engineers support domestic, commercial and development projects across Hampshire, Surrey, West Sussex, Berkshire and London, with practical advice from survey through to completion.
About Us
Alton Facility Services provides professional main sewer connection services for domestic, commercial and development projects across Hampshire, Surrey, West Sussex, Berkshire and London.
A main sewer connection allows foul drainage from a property or site to discharge into the public sewer network. This type of work needs proper planning, the right permissions and experienced drainage contractors who understand excavation, pipe gradients, inspection chambers, reinstatement and water authority requirements.
We help homeowners, developers, builders, landlords and commercial clients connect private drainage to the public sewer network. Our team can support the practical work involved, including site assessments, drainage route planning, excavation, pipe installation, inspection chambers, connection works and reinstatement.
AFS undertakes main sewer connection works using NRSWA-qualified Street Works operatives and supervisors, supported by NPORS-certificated plant operators. Subject to the required project-specific licences and approvals, our scope can include Chapter 8 signing and guarding, traffic-management coordination, excavation, pipe installation, chamber construction, backfilling and compliant reinstatement.
Proven delivery: AFS has delivered complex sewer-connection projects involving foul pumping stations, long rising mains, Section 50 highway works and Thames Water-approved public-sewer connections.
You may need a new sewer connection when a property or site does not already have a suitable connection to the public sewer network, or when an existing private drainage arrangement needs upgrading.
Before any main sewer connection work begins, the route, levels, pipe condition and likely connection point need to be understood. This helps avoid unnecessary digging, poor pipe gradients, access issues and unexpected delays once the work starts.
Our drainage team can inspect the site and assess where the existing drainage runs, whether a public sewer is accessible nearby, the best route for the new drainage connection, pipe depth, gradient and access requirements, manhole positions and likely reinstatement requirements.
Where needed, we can also support the process with a CCTV drain survey or drainage consultancy before the main works begin.
Main sewer connection works normally need approval from the relevant sewerage undertaker before a connection is made to the public sewer network.
Depending on the site, the process may involve identifying the correct public sewer connection point, preparing a drainage layout or connection proposal, supporting a Section 106 public sewer connection application, providing contractor information, giving the required notice and coordinating inspection or sign-off.
AFS has established working relationships with regional sewerage undertakers and regularly liaises with their application and inspection teams regarding sewer records, proposed connection points, Section 106 applications, inspection requirements and final sign-off.
Where works affect the public highway, we can also support the Section 50 highway licence or relevant permit process and coordinate the required traffic-management arrangements. The relevant sewerage undertaker and highway authority remain responsible for granting their respective consents, licences or permits, and physical works do not begin until the project-specific requirements are confirmed.
The exact sequence depends on the site and the requirements of the sewerage undertaker and highway authority. A typical project includes:
Once the route and approval requirements are clear, the physical drainage works can be planned. Our team can carry out the excavation, installation and connection works required to connect private drainage to the main sewer.
Our capability covers road and private-land connections, gravity and pumped sewer solutions, Chapter 8 signing and guarding, traffic-management coordination, chamber construction and compliant reinstatement, all subject to the agreed construction information and project-specific permissions.
Every project is different. Some connections are straightforward domestic works, while others involve deeper drainage, longer runs, hardstanding excavation, highways considerations or more complex site access.
At a property in Headbourne Worthy, Hampshire, AFS installed a new garden drain run, completed the main sewer connection and pipe lining, and decommissioned the redundant septic tank. The published case explains the excavation and access constraints involved. Read the Headbourne Worthy sewer connection case study.
For homeowners, a main sewer connection may be needed when building a new home, converting a property, replacing private drainage or moving away from an old septic tank or cesspit system.
We can help with practical advice, site inspection and installation work for new house sewer connections, property extensions, septic tank replacement projects, cesspit replacement projects, existing property upgrades and drainage alterations during renovation works.
Where private drainage is no longer suitable or compliant, connecting to the mains sewer may be a better long-term solution if a viable connection point is available.
Commercial sites and development projects often require more detailed drainage planning than standard domestic work.
We can support commercial unit sewer connections, yard and workshop drainage connections, small development drainage connections, new build drainage infrastructure, connection routes across hardstanding, drainage layout improvements and pumped drainage solutions where gravity connection is not suitable.
If a gravity-fed connection is not practical due to distance, depth or site levels, a pump station may be required to transfer wastewater to the correct discharge point. We can advise on package pump stations and related wastewater pumping options.
The cost of a main sewer connection depends on the site conditions and the complexity of the work.
Because every site is different, we recommend a survey before giving a firm price. This allows us to assess the route, access and practical work involved rather than giving a rough figure that may not reflect the true job.
Alton Facility Services provides experienced drainage and wastewater engineers, domestic and commercial drainage support, CCTV drain survey capability, excavation and underground drainage installation, pump and sewage expertise, practical advice before work begins and clear communication from survey through to completion.
Our team includes NRSWA-qualified Street Works operatives and supervisors and NPORS-certificated plant operators. We handle a wide range of drainage, pump station and wastewater projects, so we can advise on the most practical route whether the solution is a gravity sewer connection, private drainage upgrade, treatment plant, septic tank conversion or pump-assisted system.
We provide main sewer connection services across Hampshire, Surrey, West Sussex, Berkshire and London. Our teams support urban, rural, commercial and development sites, including connections in roads and on private land.
Our coverage includes Alton, Liphook, Basingstoke, Farnham, Guildford, Winchester, Petersfield, Chichester, Horsham, Reading, Newbury, Wokingham, Bracknell and selected London boroughs.
If your site is outside these areas, contact us and we can confirm whether we can help.
The price depends on the distance and depth of the public sewer, ground conditions, access, pipework, chambers, permits, traffic management and reinstatement. A site survey is normally required before a reliable quotation can be prepared.
In most cases, yes. A connection to the public sewer normally requires approval from the relevant sewerage undertaker before the connection is made. The requirements vary depending on the site and the type of connection, so it is important to check before starting work.
Yes. We can inspect the site, review the likely drainage route and advise whether a connection appears practical. In some cases, further checks, sewer records, CCTV survey work or water authority confirmation may be needed.
Where a suitable public sewer connection is available, it may be possible to replace an old septic tank or cesspit arrangement with a mains sewer connection. The best option depends on distance, levels, ground conditions and approval requirements.
Timescales vary depending on the complexity of the site, permissions, excavation depth, drainage layout and reinstatement work. A straightforward domestic connection may be much quicker than a deep or complex development connection.
Yes. We can carry out excavation, pipe installation, connection works and reinstatement as part of the project, subject to site requirements.
If the site levels do not allow a gravity-fed connection, a pumped solution may be needed. This can involve a package pump station or foul pump station designed to move wastewater to the correct discharge point.
Yes. AFS undertakes highway sewer works using NRSWA-qualified Street Works operatives and supervisors, supported by NPORS-certificated plant operators. Every road project remains subject to its specific licence or permit, approved connection details and traffic-management requirements.
Yes. We regularly liaise with sewerage-undertaker application and inspection teams about sewer records, the proposed connection point, Section 106 applications, inspections and final sign-off. The sewerage undertaker remains responsible for granting its consent or approval.
Yes. Subject to the required project-specific Section 50 highway licence or other permit, AFS can undertake the physical roadworks and coordinate Chapter 8 signing and guarding, traffic management, excavation, connection work and compliant reinstatement.
Yes. We can assess, design and install a foul pumping station and rising main where levels, distance or excavation depth make a gravity connection unsuitable.
Yes. We work on domestic, commercial and development drainage projects, including new connections, drainage alterations and wastewater infrastructure.
Photos can help us understand the site, but main sewer connection work usually needs a proper survey before a reliable quote can be provided. The route, depth, access and connection point all affect the cost.
Need a main sewer connection quote? Call 01420 561661 or request a callback today for practical advice and a no-obligation quote.
Reliable Professional Trusted
We work with trusted manufacturers and suppliers to deliver robust, compliant drainage and wastewater solutions.
