Tank Inspections & Compliance Reports

Is Your System Legal?

If your property relies on a private drainage system (like a septic tank, treatment plant, or cesspit), you are legally responsible for it.

Since the regulations changed in 2020, homeowners must ensure their system isn’t polluting the environment. Whether you are buying a new home, selling your current one, or just want peace of mind, ASL provides the expert checks you need.

In simple terms: We check if your tank is safe, working properly, and compliant with the law.

checking if your tank is safe

Why Do You Need an Inspection?

The most common reason customers call us for this service is moving house.

If you are selling a property with a private sewage system, your buyer’s solicitor will almost certainly ask for a compliance report. They need to know if the system meets the General Binding Rules. If it doesn’t, it can delay the sale or lead to price renegotiations.

You might also need an inspection if:

  • You have noticed problems: Bad smells, boggy ground, or toilets backing up.
  • You are unsure of the rules: You have an old tank and don’t know if it discharges illegally.
  • Insurance Claims: You need evidence of damage for your insurer.

The General Binding Rules (The Important Bit)

Strict environmental rules (known as the General Binding Rules) are now in force in England.

Crucially: It is no longer legal for a septic tank to discharge directly into a watercourse (like a ditch, stream, or river). If your tank does this, it must be replaced or upgraded. Our inspection will tell you immediately if you are compliant or if you need to take action.

How We Carry Out the Inspection

We follow a thorough, structured process to give you a clear answer.

1. Visual & Structural Check – We open the lids and look at the physical condition of the tank. We check for cracks in the walls, corrosion on concrete, and damage to the inlet and outlet pipes.

Check may be above ground or may involve tank entry, depending on the system and type of inspection requested

2. Operational Check – We check if the system is actually doing its job. Is the waste separating correctly? Is the water leaving the tank clean enough? If you have a treatment plant, we check if the pump and motor are working.

3. The Compliance Check – We measure the system against the regulations. We check:

  • Is the tank the right size for the property?
  • Is it too close to a house or a boundary?
  • Where does the tank discharge to?

4. Drainage Field Inspection – If there is access to the drainage field, we can carry out a CCTV survey to check the pipework and observe the ground conditions for signs of failure or pollution.

5. The Written Report – You receive a clear, easy-to-read document. It includes:

  • A simplified condition rating (Compliant / Non-Compliant / At Risk).
  • Photographs or video evidence.
  • Recommendations for repairs (if needed).
repairs in progress

Who Is This Service For?

  • Home Buyers: Making sure you don’t inherit a £10,000 repair bill.
  • Home Sellers: Proving your system is legal to speed up the sale.
  • Solicitors & Estate Agents: Needing expert verification for clients.
  • Home Owners: Checking their system is safe and pollution-free.

The Benefits

  • Legal Protection: Ensure you aren’t breaking environmental laws.
  • Smooth Property Sales: Avoid last-minute delays during conveyancing.
  • Avoid Fines: Prevents pollution that could lead to Environment Agency penalties.
  • Honest Advice: If your system is fine, we will tell you. If it needs an upgrade, we will explain exactly why.

Ensure your private drainage is safe and legal. Book a compliance inspection with ASL.

A compliance report is often the deciding factor in property sales involving private drainage systems.

Areas we cover

Surrey, Hampshire, Berkshire, West Sussex and South West London

The ASL Limited HQ is in Guildford, but our operating area is the whole of Surrey and parts of Berkshire, Hampshire, West Sussex and South West London.

Map showing areas we cover in Sussex, Hampshire, Berkshire, West Sussex and South West London

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Contact Us

Get in touch today

You can call us on 0800 181 684, email info@asllimited.co.uk or use the form below: