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Our full team extends beyond the office to our engineers on the ground, our tanker drivers our cleaners and all the other support staff that keep ASL Limited running as a well-oiled machine. When you call the office it is most likely to be one of these lovely people who will answer your call, so say hello and trust they will help if they can.

Our HQ is based in Guildford, but we cover locations within the home counties and the South East of London. We are also Safecontractor approved, as well as being part of Which Trusted Traders and Check-A-Trade. ASL's biggest strength is their people. Everyone I have met from their firm strikes the right balance between friendly and professional.
Services
Please feel free to explore our blog of articles that may help you resolve your drainage issue. If you are looking for a fast, reliable and efficient drain clearance service, then you have come to the right place. With over 25 years of experience in the industry and unblocking drains - we do not work on commission.
Whether you're struggling with a blocked sink, blocked gullies or manholes, our engineers are on-hand for fast call-outs and effective solutions. We cover all types of drain unblocking requirements and ensure to have your systems flowing again soon. In our long and vast experience, we find most blocked drains are cleared within half an hour.
ASL Limited carries out all drainage work ourselves, from simply fixing a blocked drain, right up to carrying out private system tank installations and main drain (sewer) connections. We are a local, family-run business - established in 1998 - passionate about excellent customer service and unrivalled quality.
Please feel free to explore our blog of articles that may help you resolve your drainage issue. Based in Guildford, Surrey ASL are able to attend blocked drain callouts within a 25-mile radius of our head office. Have a look at the map and see if your area is within our range. When it comes to installing private sewage systems we can go a little further afield so it's worth checking with our office if we can help you out.
I would like to talk about our underground pipes that transport wastewater (sewage water or sewage) and rainwater away from houses and buildings. The main purpose is to protect the building, especially the foundations. Most properties have separate drains for surface water and wastewater.

Understanding the drains around your house and how they lead to the public sewer or your private system gives you the upper hand when it comes to dealing with potential problems.
Reviews (6)
Frank Chambers
Frank Chambers
Jan 22, 2022
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Blockage removed!!
Phoned ASL at just after 0800. Less than 3 hours later, they were here, and half an hour after that, gone again, problem sorted.
Great service, friendly technician, charged what they said it would be, and I got a squint up the underground pipe to the road thrown in for free as well.
Brilliant.
Mike MacD
Mike MacD
Dec 18, 2021
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We have used ASL several times and always received excellent service and they have all the best equipment. Most recently they got Darren to us the same day. He was very professional and extremely helpful, not just analysing our problem but checking the whole system. Highly recommended!
Billie Sharp
Billie Sharp
Dec 16, 2021
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My understanding of the different kinds of drainage that there are, how they should be plumbed in and what can go wrong if not done correctly has helped me immensely due to Gerry of ASL's willingness to share his knowledge and expertise. ASL are top of my list to call for any drainage issues. Thank you!
Mark Corder
Mark Corder
Oct 23, 2021
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Excellent service, did exactly what they said they were going to do. Two really helpful and friendly guys arrived and sorted the problem out with the minimum of fuss - both are a credit to ASL. Very, very happy with the service and solution provided. Thank you.
Lilian
Lilian
Aug 26, 2021
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Had a blocked toilet for 2+ weeks. Poured all the chemicals you can think of and it didn't work. Called aslimited and the chap on the phone was very friendly and managed to get an engineer within an hr. The engineer was also very friendly and accommodating to not wear his boots in the house which I appreciated. Most importantly he got the job done within 20mins. Excellent service! I wish it was cheaper but more importantly happy job was completed swiftly.
Folarin Bamgbopa
Folarin Bamgbopa
Aug 07, 2021
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Good Morning,
Today, I had one of your operatives unblock the drainage caused by a blocked mercerator outlet, Darren (I believe his name is), went to great extents and was quite innovative to find the blockage which he subsequently dealt with.
Please offer our gratitude to him.
Thanks
Folarin