Septic Tank Surveys
A clear, factual survey of your septic tank, outlet pipework and drainage field, with a written report on the system's condition and whether it meets the General Binding Rules. The report isn't a formal compliance certificate.
Septic Tank Surveys Explained
A septic tank survey provides a documented assessment of the tank and the parts of the drainage system that can affect its operation. UKDP empties the tank so the engineer can inspect its internal structure using a camera, recording a 360-degree view of its condition. The outlet pipework leading towards the soakaway or drainage field is also surveyed for visible defects.
The findings are presented in a written report with photographic evidence. Any damage, deterioration or compliance concerns identified during the survey are clearly recorded.
Where no defects are found, the report comments on whether the system complies with the General Binding Rules. Copies of the CCTV footage and internal survey video can also be supplied on request.
Who Needs a Septic Tank Survey
A septic tank survey is suitable for anyone who needs clear evidence of an off-mains drainage system’s condition and compliance. This includes:
- Homeowners experiencing odours, slow drainage, overflowing wastewater or unusually high liquid levels.
- Property owners who do not know the age or condition of their septic tank.
- Buyers who want to understand the system before committing to a purchase.
- Sellers who need to provide accurate drainage information before a sale.
- Landlords and property managers responsible for maintaining private drainage.
- Owners checking whether their system meets the General Binding Rules.
- Anyone planning building work that could affect the tank, pipework or drainage field.
The survey replaces guesswork with documented findings, helping you decide whether maintenance, further investigation or remedial work is required.
Other Septic Tank Services from UKDP
UKDP provides practical support throughout the life of a septic tank, from routine emptying and condition checks to replacement and new installation.
Emptying
Routine emptying removes accumulated sludge and wastewater from the tank. The appropriate schedule depends on the tank’s size, usage and number of people using the system.
Learn moreInspection
A general inspection checks the condition and operation of the tank and connected drainage. It is suitable when you need a routine health check rather than a detailed structural survey.
Learn moreRepairs
UKDP investigates the problem before confirming whether a repair is practical. Limited repairs may be possible around the tank neck or covers, but significant structural damage often requires replacement.
Learn moreInstallation
UKDP assesses the site and installs a suitable septic tank and drainage arrangement in accordance with the applicable requirements.
Learn moreReplacement
The service includes decommissioning the existing tank by backfilling it and installing the replacement system using the same process as a new installation.
Learn moreWhat UKDP's Septic Tank Surveys Include
UKDP examines the tank and the accessible parts of the system needed to provide a clear, evidence-based assessment.
Tank emptying
The septic tank must be emptied before the internal inspection can begin. This exposes the tank’s structure and allows the engineer to assess areas that would otherwise remain hidden beneath the wastewater. Any separate emptying charge is confirmed when booking.
360-Degree camera survey
A camera is inserted into the emptied tank to capture a complete internal view. The footage helps the engineer examine the tank systematically and creates a visual record of its condition on the survey date.
Structural condition check
The engineer assesses the visible internal structure of the tank and records any damage, deterioration or other concerns. These findings help establish whether the tank is in satisfactory condition or requires further attention.
Outlet pipework survey
The accessible outlet pipework leading towards the soakaway or drainage field is surveyed for defects. This helps identify problems beyond the tank that could prevent wastewater from leaving the system correctly.
Written condition report
Every survey includes a detailed written report explaining the condition of the system and recording any defects found. Where no defects are found, the report comments on whether the system complies with the General Binding Rules. It is not a formal compliance certificate.
Photographic and video evidence
Photographs are included to support the written findings and provide clear evidence of the system’s condition. Copies of the CCTV footage and internal septic tank survey video can also be supplied if requested.
Septic Tank Surveys Go Beyond Routine Inspections
A routine septic tank inspection provides a general health check and can identify visible signs that the system needs attention. A full septic tank survey is more detailed and produces documented evidence of the system’s condition.
For the survey, the tank is emptied before a camera is used to complete a 360-degree internal structural assessment. The accessible outlet pipework leading towards the soakaway or drainage field is also checked. UKDP then provides a written report with photographic evidence, records any defects and comments on compliance with the General Binding Rules where applicable.
Choose an inspection for a general condition check. A survey is more suitable when you need detailed evidence for compliance, a property decision or a suspected structural problem.
What Customers Say About UKDP's 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 Surveys Your Septic Tank
The survey covers the tank’s internal structure and the outlet pipework leading towards the drainage field, with every finding clearly documented.
Attend the property
UKDP arrives at the property with a tanker and the equipment required to complete the survey.
Empty the septic tank
The tank is emptied so its internal structure can be seen and inspected properly.
Complete the internal survey
A camera is inserted into the tank to carry out a 360-degree structural survey and record its condition.
Survey the outlet pipework
The engineer checks the outlet pipework leading towards the soakaway or drainage field for accessible defects.
Provide the survey report
UKDP provides a written report with photographic evidence. Any defects are recorded, while a system without identified defects is assessed against the General Binding Rules. Video footage is available on request.
Septic Tank Surveys for Property Professionals
UKDP provides clear, documented findings for those responsible for an off-mains drainage system or involved in decisions about a property.
Homeowners
A septic tank survey that tells you the condition and compliance of the system at your home.
Learn moreLandowners
Understand the condition and compliance of septic tanks serving individual homes, rural estates or larger property portfolios. The report records defects and explains where further investigation or remedial work is needed.
Learn moreInsurers
Obtain factual evidence of the tank’s internal condition and connected outlet pipework. Photographs, written findings and requested video footage can support an informed assessment of drainage damage.
Learn moreEstate Agents
Provide buyers and sellers with clearer information about a property’s septic tank. The findings can identify concerns that need to be understood or addressed before the transaction progresses.
Learn moreProblems Identified by a Septic Tank Survey
Emptying the tank and inspecting it internally allows UKDP to identify defects that cannot be assessed from ground level. The report explains each finding, supports it with evidence and helps establish what should happen next.
Potential survey finding
- Structural cracks or damage
- Internal deterioration
- Outlet pipework defects
- Signs of leakage
- Compliance concerns
- No visible defects
What the finding means
- Visible damage could affect the tank’s integrity and may require remedial work or further assessment.
- Deterioration may show that parts of the tank have declined and need attention.
- Damage within accessible outlet pipework could affect flow towards the soakaway or drainage field.
- Evidence of leakage may indicate that the tank is no longer containing wastewater correctly.
- The drainage arrangement may not meet the applicable General Binding Rules.
- The report records that no defects were identified and comments on whether the system is compliant.
A Septic Tank Survey Checks Compliance
In England, septic tanks must meet the General Binding Rules for small sewage discharges. These rules cover where the system discharges, how it is maintained and whether it presents a risk of pollution. Septic tank effluent should pass through a drainage field rather than discharge directly into a watercourse.
UKDP empties and examines the tank, surveys the accessible outlet pipework leading towards the drainage field and records any visible defects or concerns. If no defects are identified, the written report comments on whether the system complies with the General Binding Rules.
Different environmental regulations apply in Scotland and Wales. UKDP considers the requirements relevant to the property’s location, so the report provides an appropriate assessment rather than applying the English rules nationwide.
Recent Septic Tank Surveys By UKDP
Septic Tank Survey Cost
A UKDP septic tank survey costs £399 including VAT. The price covers the on-site assessment, a 360-degree internal camera survey of the emptied tank, inspection of the accessible outlet pipework and a written report with photographic evidence.
The tank must be empty for the engineer to inspect its internal structure properly. Where tank emptying needs to be arranged separately, UKDP will confirm the additional cost before the survey is booked.
Your report records any defects identified and explains whether the system complies with the General Binding Rules when no defects are found. Copies of the CCTV footage and internal survey video can also be provided on request, giving you clear evidence of the system’s condition.
Why Choose UKDP for Septic Tank Surveys
UKDP combines established off-mains drainage knowledge with detailed investigation and evidence-led reporting, giving you a clear understanding of the system’s condition.
Drainage experience since 2009
UKDP has investigated drainage systems since 2009, bringing extensive practical and technical knowledge to each septic tank survey.
Specialist off-mains knowledge
Our engineers understand septic tanks, outlet pipework, soakaways, drainage fields and the requirements that apply to private drainage systems.
Clear, evidence-based reporting
You receive written findings supported by photographs. Copies of the CCTV footage and internal survey video can also be provided on request.
£15 million Professional Indemnity cover
Our professional indemnity insurance provides reassurance that the technical findings and advice contained in your report are professionally supported.
Complete system assessment
The survey examines the emptied tank internally and checks the accessible outlet pipework leading towards the soakaway or drainage field.
Nationwide, locally delivered
UKDP provides septic tank surveys across the UK, combining national resources with engineers who understand off-mains drainage systems.
Understanding Your Septic Tank Survey Report
Every UKDP septic tank survey includes a written report explaining the condition of the tank and accessible outlet pipework.
Your report includes:
- Tank condition: Findings from the 360-degree internal structural survey.
- Outlet pipework: Defects identified in the accessible pipework leading towards the soakaway or drainage field.
- Photographic evidence: Images supporting the engineer’s findings.
- Recorded defects: Clear details of any visible damage, deterioration or other concerns.
- Compliance outcome: Confirmation of whether the system complies with the General Binding Rules where applicable, provided no defects are found.
- Video evidence: Copies of the CCTV footage and internal tank-survey video when requested.
The report provides a documented record that can support compliance checks, property decisions and discussions about any further investigation or remedial work.
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Read articleSeptic Tank Surveys: Frequently Asked Questions
Ask our teamIs a septic tank survey legally required?
There is no general rule requiring every septic tank to receive a professional survey at fixed intervals. However, the operator remains responsible for ensuring the system complies with applicable environmental regulations and does not cause pollution. A survey provides useful evidence when the condition, discharge arrangement or compliance status is uncertain, particularly before a property transaction or when there are signs that the system is no longer working correctly.
Does the septic tank need to be emptied before the survey?
Yes. The tank must be emptied so the engineer can see its internal structure and complete a proper 360-degree camera survey. UKDP attends with a tanker as part of the survey process. The empty tank allows cracks, deterioration and other visible defects to be identified more clearly. Where emptying needs to be charged separately, UKDP confirms the arrangement and cost before the booking is completed.
How often should a septic tank be professionally surveyed?
There is no single survey frequency suitable for every septic tank. The need depends on the system’s age, condition, maintenance history and any changes in performance. A survey is sensible when ownership changes, records are incomplete, defects are suspected or compliance is uncertain. Routine emptying and maintenance should continue separately. An engineer can advise whether a detailed survey or a more general inspection is appropriate for your circumstances.
What access does UKDP need to survey a septic tank?
The engineer and tanker need safe, practical access to the septic tank and its covers. The covers must be identifiable and accessible so the tank can be emptied and the camera equipment inserted. UKDP also needs access to relevant inspection points for the outlet pipework. Tell the team about restricted entrances, locked gates, difficult ground or covers beneath landscaping when booking so suitable arrangements can be discussed beforehand.
Can UKDP survey a shared septic tank?
A shared septic tank can be surveyed, provided suitable access is available and the person arranging the work has the authority to proceed. It is helpful to establish which properties use the system, where the tank and drainage field are located and who is responsible for maintenance. The resulting report provides a common record of the system’s condition, which can help owners discuss defects, compliance and any necessary next steps.
Can a survey investigate smells, slow drains or wastewater backing up?
Yes. These symptoms can indicate a problem within the tank, outlet pipework or wider drainage arrangement. Emptying the tank allows the engineer to inspect its internal condition, while the camera survey can identify accessible pipework defects. A survey may not expose every problem within the underground drainage field, but the findings can establish whether further investigation is needed.
Can a septic tank survey support an insurance claim?
The written report, photographs and requested video footage can provide evidence of the tank’s condition and any visible damage. This may support an insurer’s assessment where the problem could fall within the policy. However, a survey does not guarantee that a claim will be accepted. Cover depends on the cause of damage, the policy wording, responsibility for the system and any authorisation required by the insurer.
What happens when the survey identifies a defect?
The defect is recorded in the written report and supported by photographs where possible. UKDP explains which part of the system is affected and whether further investigation or remedial work should be considered. The survey itself does not commit you to repairs. It provides evidence that helps you review the issue, understand the next step and make an informed decision before authorising any additional drainage work.
Arrange Your Septic Tank Survey
Get clear, documented evidence of your system’s condition and compliance from UKDP’s experienced off-mains drainage team.