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We are celebrating our 25th Anniversary since we were incorporated in 1998

This year we are celebrating 25 years in drainage since ASL Limited was incorporated in Guildford, Surrey, in 1998.

Surrey’s leading drainage company for expert help with: Blocked drains | Septic tank emptying | Private sewage treatment systems

Blocked sink, drain, toilet or shower? You need ASL Limited. 
Problem with a septic tank, treatment plant, or pumping station? You need ASL Limited.

ASL Limited blocked drain clearance for £69 +VAT includes rodding & light jetting.
ASL Limited blocked drain van & septic tank emptying tanker.

If you’re in Surrey, Berkshire, Hampshire, West Sussex and South West London, give us a call: 0800 181 684

ASL is not a small operator.  Our operatives know the big picture because our four departments talk to each other. 

We understand all the parts of sewage treatment systems. We know how they work – and why they’re not working.

So you’ll get a quick, accurate diagnosis of your blocked drain or other issues. And the most efficient solution possible.

You’ll have the right specialist help when you need it, because we have electricians, managers, expert engineers and other consultants on speed dial.


Blocked drain clearance in Guildford, Surrey and across the surrounding counties.
Blocked drain clearance in Guildford, Surrey and across the surrounding counties. 

ASL is a family company – with a reputation created over 25 years working in your area. Our teams do not work on commission – doing a good job for you is our only aim. This is how we built our company.

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

“Worked really hard, were polite, had impeccable manners.”

ASL – your friendly drainage experts with the equipment, broad knowledge and long experience to diagnose and fix any and every blocked drains, septic tank and sewage treatment issue: 0800 181 684

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 below or our 'areas covered page' for our services reach and use our postcode checker.


Hoorah! We cover your area so give us a call on 0800 181 684

Need help with drainage?

contact ASL to help you with your drainage
Send us a message below and we will get back to you ASAP.
Do you 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?