Why a Septic Tank Survey is Essential

Septic tanks and other off-mains drainage systems are subject to strict environmental regulations introduced in 2020. Property owners are legally responsible for ensuring that their system is compliant, well-maintained, and not causing pollution. A septic tank survey provides a clear picture of your system’s condition and performance, helping you avoid fines, legal action, and costly failures.

Avoiding Environmental & Legal Risks

If a septic tank is leaking, overflowing, or discharging into watercourses, it may be breaking the law. Our surveys help identify:

  • Non-Compliant Discharges – Tanks releasing into streams, rivers, or ditches.
  • Structural Damage – Cracks, collapses, or leaks in the tank.
  • Poor Performance – Overloaded tanks or failing soakaways.
  • Risk of Pollution – Environmental hazards and potential fines.

Protecting Your Property Value

Septic tank condition has a direct impact on property value. Mortgage lenders and solicitors often request a survey before approving sales. With a professional report, you can:

  • Buy with Confidence – Ensure the system is legal and functional.
  • Sell Faster – Provide buyers with reassurance and compliance evidence.
  • Plan Ahead – Identify repairs or upgrades before they become urgent.

Peace of Mind for Owners

Even if you’re not buying or selling, regular surveys help keep your septic system in top condition. Prevent unexpected failures, protect the environment, and ensure you meet UK standards with a thorough inspection.

When Should I Get a Septic Tank Survey?

A septic tank survey is not just for when something goes wrong—it’s a proactive step that can save you from costly repairs, fines, or even system replacement. We recommend arranging a survey in the following situations:

  • Before Buying or Selling a Property – If a property has a septic tank, most solicitors and mortgage lenders will expect proof that the system is compliant with the 2020 regulations. A survey provides documented evidence of condition and compliance, helping buyers avoid nasty surprises and giving sellers a smoother, faster sales process.
  • If You Suspect a Problem – Warning signs such as unpleasant odours, water pooling in your garden, unusually lush grass above the soakaway, or slow-draining sinks and toilets may all indicate that the tank or soakaway is failing. A survey pinpoints the exact cause before the issue escalates into an environmental or legal problem.
  • Older Installations – Many septic tanks installed before 2020 discharge directly into ditches, streams, or rivers, which is no longer allowed. Older tanks are also more likely to be structurally weakened or undersized for today’s usage. A survey will confirm whether your tank is still compliant and safe to use, or whether an upgrade is required.
  • Routine Maintenance – Even if your system appears to be working fine, regular surveys help detect hidden cracks, leaks, or blockages before they become emergencies. Scheduled inspections every few years can extend the life of your system, protect the environment, and give you confidence that your septic tank will keep performing properly.

What’s Included in the Survey Report?

Our septic tank survey reports are clear, detailed, and suitable for use with mortgage lenders, solicitors, and regulatory bodies. Each report includes:

  • System Condition – Full check of the tank, soakaway, and connected pipework.
  • Compliance Check – Assessment against 2020 General Binding Rules.
  • Performance Review – Identifying risks of overflow, flooding, or pollution.
  • Recommendations – Practical advice on repairs, maintenance, or upgrades.

With this information, you’ll know exactly where you stand and what action—if any—needs to be taken.

What’s Involved in a Septic Tank Survey?

Every septic tank survey is unique, depending on the system type and age. However, most follow this process:

System Location & Access

We locate the tank, soakaway, and connected pipework, ensuring safe access for inspection.

Visual Inspection

Our engineers assess the external structure for cracks, leaks, or subsidence that may indicate failure.

CCTV Drain Survey

We use high-definition CCTV cameras to inspect connecting pipework, identifying blockages, root ingress, or structural issues.

Performance Testing

We check levels, flow, and soakaway performance to ensure the system is operating correctly without risk of pollution.

Compliance Review

Our engineers assess your system against the 2020 General Binding Rules and environmental regulations.

Final Report & Recommendations

We provide a clear, written report with supporting video or images, alongside practical recommendations.

Clearmasters have over 30 years’ experience inspecting and maintaining septic tanks across the South East. Our surveys give you confidence in your system’s condition, compliance, and performance.

Septic Tank Survey in progress

Why Choose Clearmasters
for Septic Tank Surveys?

Trusted, experienced, and fully accredited drainage specialists

At Clearmasters, we specialise in septic tank surveys and inspections, ensuring your system meets current UK regulations. Whether you’re buying a property, selling one, or simply want peace of mind, our reports provide clear, professional evidence of compliance and condition.

We use the latest CCTV camera equipment combined with over three decades of expertise to deliver accurate, reliable surveys every time. Our engineers are fully qualified and our reports are widely accepted by solicitors, insurers, and mortgage providers.

With fast turnaround times, competitive pricing, and 24/7 availability, Clearmasters are the trusted choice for septic tank surveys across Surrey, Sussex, Kent, Hampshire, and London.

Frequently Asked Questions

What is a septic tank survey?

A septic tank survey is a detailed inspection of your off-mains drainage system. It checks the tank, soakaway, and connecting pipework for condition, performance, and compliance with regulations.

What are the 2020 septic tank regulations?

The 2020 General Binding Rules require that septic tanks no longer discharge directly into surface water such as streams or rivers. Non-compliant systems must be upgraded or replaced to avoid fines.

Do I need a survey when buying a house with a septic tank?

Yes. A septic tank survey ensures the system is compliant, functional, and not hiding costly problems. Many lenders and solicitors request a survey before completion.

What happens if my system is non-compliant?

If your septic tank doesn’t meet current regulations, we provide clear recommendations for repair, upgrade, or replacement to bring it in line with legal standards.

How long does a survey take?

Most surveys take a few hours depending on system size and complexity. A full written report is usually provided within 48 hours.

Can you provide maintenance as well?

Yes. In addition to surveys, Clearmasters provide septic tank emptying, maintenance, and upgrades to keep your system safe, efficient, and compliant.