ASL Limited – blocked drains and drainage in Guildford, Surrey | Drainage company clearing a blocked drain in Guildford, Surrey Skip to main content


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

ASL Limited specialise in drainage including blocked drain clearance throughout & beyond Surrey.

ASL Limited blocked drains experts and drainage tanker in attendance.Fast, reliable & efficient drain clearance service based in Guildford.

With over 25 years of experience in the drainage industry & unblocking drains – we do not work on commission. ASL Limited is a medium-size company divided into four departments; headed by specialist managers. ASL managers are fully trained experts in their particular field. As a family-run business, you can imagine each department liaising with the other to gain experience & understanding that benefits our customers in a very prudent way, whatever their drainage needs.

Benefits of using ASL Limited.

We've got the experience, equipment & solution, to clear your outside blocked drain, sink, toilet or shower drain. We can help if you have a problem with your septic tank, treatment plant or pumping station.

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


When we are called to unblock your drain, we find that about 70% of callouts are straightforward, unblocked within the first half-hour. When you call someone else, & the blocked drains operative comes across a private sewage system with a pumping station or a cesspit/cesspool, they may not have the knowledge that our team has to diagnose the real problem. This can be difficult, especially if the drains are full & cause further problems.

If the blocked drain person you call has no idea about treatment plants or septic tanks, their ability to solve a problem is limited. They may not have enough knowledge to tell if the system is working or not.


Not only do we have the knowledge & experience to deal with any drainage problem, but we also have all the equipment we might need – either onboard or a short call away.

ASL blocked drains operatives have a lot of experience working with our different departments. This gives them a basic knowledge of a pumping station's workings & how it works. Our operatives know the electrics need to be handled by our qualified electricians. With electricians, managers, expert engineers & consultants from any department on speed dial, it is not a problem. They can ask for their advice after explaining each particular job's problem – or emergency call out. This gives our customers efficient long-term solutions to any drainage issues.


If a sewage tank needs to be emptied, our blocked drain operative can talk to our tanker driver (the emergency tanker driver if needed). They know the tanker driver is reliable & know each other personally because they are part of ASL Limited. Both are also familiar with the workings & the possibilities of the tanker.

Whether you have a private sewage system or not, we can unblock your drain, find the cause & repair the problem too.

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 locations within the home counties and the South East of London.

See our 'areas covered page' to see where our services reach.

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?