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Septic tank installation, maintenance & repair company in Guildford, Surrey

Emptying, installing, maintaining & repairing commercial and domestic septic tank systems for over 40 years.

An onion shaped septic tank.
An onion shaped septic tank.

Does your septic tank need empyting – or servicing? 

Or are there some things going on with your septic system? 

Not sure if you need a septic tank or not?

You’re at the right place. ASL doesn’t charge for estimates, so give us a call: 0808 253 4386

These signs mean your septic tank probably needs emptying:

  • It hasn’t been emptied for over a year
  • Septic tank effluent is overflowing onto your land
  • You’re smelling foul odours near the septic tank
  • Showers, toilets and sinks are taking ages to drain
Septic tank emptying in Surrey.

Our ASL Limited team will arrive promptly to empty your tank – and make 100% sure it’s not going to get blocked or start overflowing again. Call us right now: 0808 253 4386

Are you sure you’re complying with the latest septic tank ‘general binding’ rules? (https://www.asllimited.co.uk/drainage-blog/reminder-new-septic-tank-regulations-2020-and-beyond)

Septic systems are not allowed to discharge effluent to a river, stream, ditch or other surface water. So if your septic tank does this, you’re going to have to upgrade or replace it.

Why do septic tanks need cleaning? Just to make sure waste inside doesn’t start to fill the first chamber – which would leave less space for solids and liquids to settle and separate like they should.


Installing a new septic tank?

We need to be completely sure everything is right before starting installation, by testing:

  • The kind of ground you have
  • Your ground’s porosity
  • The required depth for the tank
  • The required fall of pipes
  • Ground drainage

The size of the septic tank we install will depend on the size of your property and the number of occupants. It will be installed to ensure:

  • Easy access for emptying and maintenance
  • Ventilation, to stop foul odours
  • The right model and size for your property

“ASL’s biggest strength is its people. Everyone I have met from their firm strikes the right balance between friendly and professional.”

“They are always concerned that the customer is happy with the work. I would thoroughly recommend them.”

Septic tank in Surrey?

It’s got to be ASL Limited – known, trusted, liked by thousands of customers over a period of more than 40 years. 

Get us on the phone today: 0800 181 684

Read more about septic tanks on our blog.

Don’t delay we can help you today!

Call 0800 181 684 for all your drainage needs.

Our HQ is based in Guildford, but we cover the whole of Surrey, Parts of Berkshire, Hampshire, West Sussex and South West London.

See the map on our 'areas covered page' for our services reach and use our postcode checker.

Send us a message below and, we'll get back to you ASAP.

Does the property have a private sewage system?
(eg. a cesspit, septic tank or treatment plant)
Are you happy for us to contact you with information in the future?
ASL Limited clears the majority of blocked drains within half an hour.

ASL Limited Certifications

Our engineers have a variety of certifications, as follows:-

  • New Roads & Street Works
  • EUSR Water Hygiene
  • CSCS
  • NPORS Excavator & Dumper
  • Confined Space

We are also Safecontractor approved, as well as being part of Which Trusted Traders and Check-A-Trade.