Septic Tank Installation Services
Whether you are replacing a failed septic tank or installing a new system, we assess the site, plan a compliant solution and manage the installation through to sign-off.
Understanding Septic Tank Installation Services
Septic tank installation services cover the planning and construction of a new private wastewater system or the replacement of one that has failed. We assess the property, expected usage, available space and ground conditions. Where wastewater will discharge to ground, percolation testing helps determine whether a drainage field is suitable and how it should be sized.
The installation is then planned around the tank capacity, pipework, drainage field and site access. We also account for the relevant General Binding Rules, Building Control and any permit or planning requirements. For replacement projects, decommissioning the old tank is included within the quoted work, with the method determined by the site.
What UKDP's Septic Tank Installation Service Includes
Your quotation will set out the exact installation scope, so you know what is included before work begins.
A correctly sized septic tank
Tank capacity is selected around the property’s expected usage, wastewater volume and available space.
Old tank decommissioning
For replacement projects, the existing tank is ordinarily emptied, cleaned, collapsed and backfilled as part of the quoted work.
The required connecting drainage
The installation can include new inlet and outlet pipework and a drainage field where the site assessment shows they are needed.
Agreed reinstatement
Any access requirements, disruption and reinstatement of affected areas are explained and agreed before the installation starts.
Compliance built into the solution
The proposed system accounts for the relevant General Binding Rules and any permit, planning or Building Control requirements.
Completion pack and guarantees
You receive completion documents and a three-year workmanship guarantee, with an optional insurance-backed guarantee available separately.
What UKDP Customers Say About Our Septic Tank Services
I wanted to go on record to thank you for all the assistance that UKDP have given in resolving the collapse of my septic tank and liaising with my insurance company. You have provided a first-class service and kept me informed along the way. I will certainly recommend you to any of my friends and clients in the event that they suffer a similar situation.
If you have the opportunity to upgrade your septic tank, we the Taylors fully recommend the service given by UKDP. From the word go, the project scope and works were drafted up quick time. Professional and respectful all the way through.
I would like to thank you regarding the claim you handled for me regarding my Septic Tank. You kept me fully informed of progress with my Insurance Company. The replacement tank was installed last month. I am so relieved that the work is now complete. I would be grateful if you could also pass on my thanks to Kevin. I think he attended three times and he was always very professional and reassuring.
How UKDP Installs Your Septic Tank
Your dedicated Project Manager keeps you informed from planning through to handover. Installation work typically takes five to seven working days, depending on the project.
Free site assessment
We assess the existing drainage, ground conditions, discharge route, available space and access for machinery.
Design and quotation
We plan the tank capacity, pipework and drainage field, then provide a clear quotation covering the proposed work.
Approvals checked
We establish which General Binding Rules, Environment Agency permits, planning requirements and Building Control approvals apply.
Pre-works preparation
We explain access, disruption, reinstatement and timescales before the contract, deposit and start date are confirmed.
Installation and decommissioning
We install the new system and, for replacements, empty, clean, collapse and backfill the old tank as agreed.
Sign-off and handover
We check that you are satisfied and provide the completion pack and three-year workmanship guarantee before issuing the final invoice.
UKDP's Other Septic Tank Services
Keep your septic tank maintained and address potential problems with specialist emptying, inspection and repair services.
Emptying
Routine emptying removes the sludge and waste that build up inside your tank. The right schedule depends on its size, usage and number of users.
Learn moreInspection
We assess the tank’s structural condition, outlet and connected drainage, then provide factual findings and clear recommendations for any work required.
Learn moreRepairs
A site investigation establishes what has been damaged and whether it can be repaired. Fixable components may include internal tee pipes and dip pipes.
Learn moreReplacement
UKDP decommissions the old tank by backfilling it before installing the replacement system and completing the required connections and reinstatement.
Learn moreSurveys
A septic tank survey includes a 360-degree internal structural inspection, outlet pipework checks and a written report with photographic evidence.
Learn moreYour Septic Tank Installation Guarantee
Every new septic tank installation includes a three-year workmanship guarantee from UKDP. Once the work is complete, we check that you are satisfied and ask you to sign off the project. You will then receive a completion pack containing your guarantee.
For longer protection, we can also arrange an optional insurance-backed guarantee through our warranty insurance partner. This is separate from the included UKDP guarantee and is available for an additional fee. We will explain both options clearly, including what each guarantee covers, before you decide whether the extended protection is right for you.
Recent Septic Tank Installations by UKDP
Why Choose UKDP for Your Septic Tank Installation
A septic tank installation must suit the property, ground conditions and discharge requirements. We keep every part of the project clear, considered and well managed.
Installation experience since 2009
We plan and install septic tank systems around property usage, available space, ground conditions and the required drainage field.
Compliance-led planning
We check the applicable General Binding Rules and identify any Environment Agency permit, planning or Building Control requirements.
WTE-approved installer
UKDP is a WTE-approved installer, providing added reassurance when choosing a specialist to plan and complete your septic tank installation.
Three-year workmanship guarantee
Every new installation includes our three-year workmanship guarantee. An optional insurance-backed guarantee is also available for an additional fee.
Nationwide, locally delivered
Our own engineers and trusted local partners enable us to deliver septic tank installations across the UK.
A dedicated Project Manager
One UKDP Project Manager oversees the project, coordinates those involved and keeps you informed through to sign-off.
Signs You May Need a New Septic Tank Installation
A new septic tank may be appropriate when damage cannot be repaired or the wider system no longer meets the property’s needs. We assess the full drainage arrangement before recommending installation.
Failing or unsuitable system
- The tank has structural damage that cannot be repaired
- The existing tank is too small for the number of users
- The drainage field is blocked, failed or incorrectly sized
- Connecting pipework or the tank outlet is damaged
- The discharge arrangement does not meet current requirements
After a UKDP Installation
- A new tank is selected and installed for the property
- Capacity is calculated around the property’s expected wastewater flow
- A new drainage field is designed where testing confirms the ground is suitable
- The affected connections are renewed as part of the agreed installation
- The new system accounts for the applicable rules, permits and approvals
- The old tank is emptied, cleaned, collapsed and backfilled as agreed
Insurance May Cover a Septic Tank Installation
Buildings insurance may help fund an installation when a septic tank is being replaced because of unexpected damage. Cover depends on the cause, policy wording, exclusions and evidence, so it should not be assumed that every new installation will qualify.
Where a claim is valid, an insurer may fund a like-for-like replacement if the site and current regulations allow it. If compliance requirements mean a different system is needed, the reason for that upgrade must be evidenced and agreed with the insurer.
Our in-house claims team can investigate the damage, prepare a factual report, liaise with your insurer and coordinate the approved installation. Our claims support is free. You pay only your policy excess.
Who UKDP Helps with Septic Tank Installations
We support those arranging, funding or advising on septic tank installations, from individual replacement projects to more complex property and insurance cases.
Homeowners
Installation of a new septic tank at your home, including the permissions and approvals the system needs.
Learn moreLandowners
Site-specific septic tank installations for individual properties and larger land portfolios, with system sizing, ground conditions and compliance requirements considered.
Learn moreInsurers
Factual evidence and technical support for insured replacements, including compliant upgrades where a like-for-like installation is no longer suitable.
Learn moreEstate Agents
Installation support when a survey identifies a failed or non-compliant septic tank that must be addressed during a property transaction.
Learn moreMore Septic Tank Installation Advice
A Successful Sewage Treatment Plant Installation in Cheshire
See how a failed septic tank serving five Cheshire properties was replaced with a correctly sized treatment plant, with access and reinstatement carefully coordinated.
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What Does a Septic Tank Replacement Cost?
Tank size, ground conditions and whether a new drainage field is required can all affect the cost. The cause of failure may also determine whether insurance can help.
Read article
Septic Tanks vs Sewage Treatment Plants: What's the Difference?
Compare how both systems work, including their power requirements, treatment levels and discharge options, to understand which may suit your property.
Read articleSeptic Tank Installation: Frequently Asked Questions
Ask our teamHow long does a septic tank installation take?
A typical UKDP installation takes five to seven working days once work begins. The exact programme depends on the project size, excavation, access, ground conditions and drainage work required. Surveys, design, approvals and scheduling happen beforehand, so the full journey from initial enquiry will take longer.
How much does a septic tank installation cost?
A new septic tank installation typically costs £10,000-£12,000. The same range applies to a replacement tank. The final price depends on the tank size, ground conditions, site access and whether a drainage field is required. Access requirements such as removing fencing or using track mats across a field can also affect the quote. Location does not change UKDP’s pricing because we use a national schedule of rates.
How is the right septic tank size calculated?
The tank must have enough capacity for the maximum number of people the property could serve. In England, Approved Document H specifies at least 2,700 litres for up to four users, with another 180 litres for each additional user. The wider drainage system must also suit the expected wastewater flow.
Does a new septic tank need a drainage field?
A septic tank normally discharges separated wastewater into a drainage field for further treatment in the ground. A percolation test helps establish whether the soil is suitable and how large the field should be. If the ground cannot support one, a septic tank may not be the appropriate solution.
What approvals are needed for a septic tank installation?
In England, a new sewage treatment system requires Building Regulations approval and may also need planning permission. An Environment Agency permit may be required if the discharge cannot meet the General Binding Rules. UKDP identifies the relevant requirements during planning. Different regulatory arrangements apply elsewhere in the UK.
What happens to the old septic tank during replacement?
The method depends on the site, but UKDP ordinarily installs the replacement alongside the existing tank. Once the new system is operating, the old tank is emptied and cleaned before being collapsed and backfilled with compacted Type 1 material. This decommissioning work is included within the quotation.
Can buildings insurance pay for a septic tank installation?
Insurance may fund installation when it replaces a tank damaged by an insured event. Cover depends on the cause, policy terms and exclusions. A like-for-like replacement may be covered where suitable, or an alternative system where current compliance requirements make an upgrade necessary and the insurer agrees.
What guarantee comes with a new septic tank installation?
UKDP provides a three-year workmanship guarantee with every new installation. Once the work is signed off, the guarantee is supplied within the completion pack. An optional insurance-backed workmanship guarantee can also be arranged through UKDP’s warranty insurance partner for an additional fee.
Install Your New Septic Tank with UKDP
Need a new septic tank or a replacement for a failed system? Tell us about your property and we will arrange an assessment to establish the right solution. You will receive clear recommendations, a transparent quotation and an explanation of the compliance, access and reinstatement requirements before deciding how to proceed.