Same Day Response

Blocked Drains in Crawley, West Sussex Cleared From £99 Including VAT

Own a home in Ifield or a unit on Manor Royal that has a blocked drain in Crawley that needs sorting fast? ASL Limited’s engineers cover the town and surrounding area with a same-day response.

Call us free on 0800 181 684, or use our contact form for a free, no-obligation quote.

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Your local drainage team

Drainage Specialists Serving Crawley and Surrounding Areas

Surrey-based ASL Limited works across Crawley and the surrounding towns and villages including Ifield, Three Bridges, Pound Hill, Furnace Green, Bewbush, Tilgate, Maidenbower, and out towards Gatwick and Horley. We deliver emergency unblocking, CCTV surveys, no-dig repairs, and full installations, all handled by ASL’s own directly employed team, with ASL’s own equipment, across Crawley’s residential estates and the businesses and warehousing around Manor Royal and Gatwick Airport.

Drainage Specialists Serving Crawley and Surrounding Areas

What We Can Clear for You in Crawley

We assist with toilets, downstairs sinks, showers, kitchen waste, outside drains, gullies and inspection chambers across Crawley's mixed housing stock. Much of the town was built as a post-war new town, so ASL frequently works on 1950s and '60s estate pipework alongside newer developments near Southgate and Maidenbower. Soakaways, main drain connections and larger commercial drainage runs for the industrial and logistics units around Manor Royal and Gatwick round out the work, plus CCTV surveys wherever the cause isn't visible from the surface.

Toilets

Backing up because of an outside drain blockage, not internal plumbing.

Ground-floor sinks

Draining slowly or overflowing due to blocked external pipes.

Manholes & chambers

Inspection chambers in the garden or driveway that have surcharged.

Downpipes & gullies

Rainwater downpipes and gully outlets that won't clear.

Soakaways

Systems that aren't draining water away as they should.

Commercial drainage

Foul and surface water systems for businesses of any size.

Why Do Drains Get Blocked?

Crawley sits largely on Weald Clay, which holds water and puts extra strain on drainage during heavy rain, especially on the flatter estates around Broadfield and Bewbush. Fat, oil and grease from kitchens solidify inside the pipework, narrowing the flow bit by bit until it blocks completely. Meanwhile, wet wipes and sanitary items snag on joints further along. Mature street trees now line many of Crawley’s post-war estates, and root ingress into older clay pipework follows as a result. In the town’s oldest 1950s housing stock, displaced joints and collapsed sections turn up often too.

Kitchen habits

Fat, grease and food waste hardening inside the pipe.

Bathroom items

Wet wipes and sanitary products — even 'flushable' ones.

Nature

Tree roots, silt and leaves finding their way in.

Wear & tear

Scale build-up, cracks or old pipe materials failing.

Build issues

Renovation debris or pipes laid at the wrong gradient.

How We Fix It, Our 5-Step Process

  1. Call and rapid response Describe the problem, and an engineer will be sent to your Crawley address, usually the same day.
  2. On-site diagnosis The engineer will assess the blockage on arrival. Where the cause isn't obvious, a CCTV look-see survey identifies exactly what's happening.
  3. Clearing the blockage High-pressure jetting, rodding, or mechanical drain milling, depending on the type and location.
  4. Confirming the fix The drain's checked that it is running freely, with our evidence handed over before finishing up.
  5. Reporting and next steps If further work like no-dig lining or a patch repair is needed, the findings are explained plainly, with a free, no-obligation estimate to follow.
Recent Drainage Work in Crawley

Crawley Case Study

Recent Drainage Work in Crawley

A recent job near Crawley shows how ASL approaches the bigger drainage questions. The owners of a substantial site are replacing existing buildings with a new development, and the question was how to handle foul sewage as the site grows. For a long-term population of around 70, discharging to the ground would be a tall order, so before anyone commits ASL recommended trial holes and proper ground and percolation testing to establish what the ground can actually take. Our preferred long-term option is a pumping station and rising main connecting to the public foul sewer, which could also help neighbouring properties facing similar issues. Read the full job on our Crawley case study page.

Who We Help in Crawley

Homeowners across Crawley’s residential estates. Landlords and letting agents managing rental stock. Property managers overseeing flats near the town centre. Given the proximity to Gatwick, hotels, logistics operators and commercial units on Manor Royal also rely on ASL, along with facilities managers who need fast turnarounds and minimal disruption.

Homeowners & Landlords

Homeowners & Landlords

Fast, tidy help for blocked drains, bad smells and slow-draining sinks around the home.

Commercial sites

Commercial sites

Pubs, schools, offices and estates — planned maintenance and emergency call-outs.

Builders & trades

Builders & trades

Kitchen and bathroom fitters, developers and contractors, spotting and fixing drainage faults before and after installation.

Trusted & Experienced

Over 25 years' experience, around 20 directly employed engineers, no subcontractors, and no commission-based sales. Check ASL's Google reviews and Checkatrade rating alongside the relevant accreditations and full insurance cover. With every CCTV survey comes straightforward advice that you can rely on.

Jeremy Westbrooke profile picture
Jeremy Westbrooke
2 months ago
Carl, Alex and Phil attended my property today and have done a great job, found all the issues and worked to resolve them all.
Great guys thoroughly recommended!!
Shahzad Khan profile picture
Shahzad Khan
2 months ago
Brilliant service and so refreshingly honest and determined to find a solution to the problem. Would highly recommend. Over 100+ reviews at 4.9 stars on Google speaks volumes.
Stephen McKenzie profile picture
Stephen McKenzie
5 months ago
Having found ASL Limited on multiple recommendation sites I can see why - they have been a pleasure to deal with from start to finish! To assist with investigative works we had Mark and Alex out initially and then Ryan and Max out for further work - both teams were an absolute pleasure to have at our house: polite, punctual and most importantly they were experts in their field. ASL rightly have an excellent reputation as I would not go anywhere else if I need any future help!
Neil Sutherland profile picture
Neil Sutherland
5 months ago
Very prompt service. Excellent. Will recommend 100%
Rebecca Moore profile picture
Rebecca Moore
5 months ago
Ryan, Dave & Max were fantastic. Professional throughout and explained exactly what was being done. Job was expected to take 2 days and they did it all in 1. Would highly recommend!
Alun Roberts profile picture
Alun Roberts
6 months ago
We had a blocked drain. Darren attended and confirmed that the blockage was beyond our boundary therefore not our responsibility. Thames water attended and refused to accept it was their issue. Darren returned and promptly cleared the drain for us. He was polite efficient skilled and hard working. We strongly recommend ASL for drainage work.
Richard Dunning profile picture
Richard Dunning
7 months ago
What a great service! Booked in when I needed it, turned up exactly on time, investigated and sorted the problem and I now have free flowing drains! Then, to cap it all, they wouldn't take my money and said 'we'll invoice you later'. Now that's how to inspire trust! Would I use ASL again? I'm hoping I won't need to but I'll be recommending them everywhere I can!
James Hilton profile picture
James Hilton
7 months ago
An outstanding company. Professional, responsive, honest and knowledgeable. A private treatment plant that continually malfunctioned (electrics installed inside the tank. What genius thought that was a good idea?!) has been completely upgraded by ASL. Trenches dug, bespoke risers made on site, new electrics installed, the lot - all done with care and expertise. I cannot recommend them enough. Every single one of their staff are a credit to them.
More reviews

About ASL Limited

25+ Years Keeping Drains Flowing

ASL Limited covers Surrey, Berkshire, Hampshire, West Sussex and South West London, Crawley and the wider Gatwick area. More than 25 years in the trade, around 20 directly employed engineers, and a fleet of jetting units, CCTV survey equipment and lining kit. Every engineer covering Crawley is trained across unblocking, surveys and repair, with every job here, as everywhere ASL works, staying in-house.

25+ Years Keeping Drains Flowing

FAQs

How quickly can you get to me in Crawley?

Same-day response is the aim across Crawley, Manor Royal and Gatwick included, with most blockages clearing within 30 minutes of arrival.

How much does it cost to unblock a drain in Crawley?

Most blocked drains are cleared for under £100 including VAT, and we always provide a free, no-obligation quote before any work begins.

Who is responsible for the drain, me or the water company?

Southern Water generally covers the public sewer network in Crawley. Pipework that sits within your own boundary is your responsibility. ASL can help work out which applies.

Do you cover commercial premises around Manor Royal and Gatwick?

Yes. Businesses, warehousing and hospitality premises around Manor Royal and Gatwick Airport are covered regularly, with minimal disruption to operations.

What is a CCTV drain survey, and do I need one?

It's a camera inspection that shows exactly what's causing a blockage. If you've had a drain unblocked by ASL, we'll also do a complimentary 10-minute look-see with the camera, just to make sure it's clear, and if we spot a defect we'll take a picture or let you know.

Can you fix a drain without digging up my garden?

Often, yes. No-dig lining or patch repair, depending on what the CCTV survey shows.

Blocked drain in Crawley, West Sussex? Let's sort it, for good.

Call ASL Limited or use the form for a fast, same-day response for diagnosis, a clear fix, honest advice on anything further, and a free, no-obligation quote throughout.

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