Drain Unblocking
Available 24/7. We clear blocked drains, sinks, toilets and gullies on the first visit in the vast majority of cases.
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Emergency Drain & Sewage Flood Response London
Testimonial
A drain flood is one of the most distressing events a property owner can face. Whether it's sewage backing up inside your home or a manhole overflowing into your garden, you need a fast, professional, and hygienic solution.
Drain 247 mapping saved our project from delays. Clear plans, fast service!”
— John S, Architect, London
Frequently Asked Questions
As this is a priority emergency service, we aim to be with you as quickly as possible, often within just a few hours of your call, day or night.
Yes. Sewage (blackwater) contains harmful bacteria, viruses, and pathogens. It is a serious health hazard and should only be handled by trained professionals with the correct personal protective equipment (PPE).
Most buildings and contents insurance policies offer cover for "escape of water," but you should check your specific policy. We can provide a full, detailed report for your insurance company to help with your claim.
It's usually caused by a major blockage in your private drain or a problem in the main public sewer. Common culprits include large build-ups of wet wipes, collapsed pipes, or severe tree root ingress.
We provide a complete service. Our job isn't finished until we've unblocked the drain, removed all the wastewater, and thoroughly cleaned and disinfected the affected area, making it safe for you again.
Why It Is Worth Doing Properly
Avoid Contact
Keep children and pets far away from the affected area.
Switch Off Electrics
If it is safe to do so, turn off the electricity supply to the flooded area at your fuse box.
Move Valuables
If possible and safe, move any valuable or sentimental items away from the water.
Call Us Immediately
Our team will provide further advice and dispatch an engineer right away.
Emergency Call & Immediate Dispatch
Our 24/7 control room will take your call and dispatch the nearest available emergency engineer to your property immediately.
Make Safe & Containment
On arrival, our first priority is to assess the situation and stop the source of the flooding to prevent further damage to health.
If This Sounds Like Your Problem
You do not need to diagnose it perfectly. Describe the symptom and we will tell you the likely cause and what it will cost to put right.
What Our Customers Say
I really needed someone to come and unblock my outside drain as it was causing flooding issues. I found these guys online and they came the same day. Very impressed.
Drain 247’s mapping saved our project from delays. Clear plans, fast service.
Great service and a great team of engineers. Wouldn’t hesitate to recommend to anyone. Work carried out to a high standard and the call-out was within the required time.
Drainage Services We Provide Nearby
CCTV Drain Survey
High-resolution inspections that identify structural problems, repeated blockages and hidden defects — with a report you can act on.
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Drain Repair
Patch lining, full relining and excavation repairs for cracked, collapsed or deteriorated pipework.
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Drain Mapping
Accurate mapping of underground drainage for planning applications, extensions and compliance checks.
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Drain Jetting
High-pressure water jetting that scours fat, silt and scale from the pipe wall.
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Tanker Services
Vacuum tanker deployment for emptying, interceptors, and jobs too large for a van-mounted unit.
Find out moreAreas We Cover
Same-day drainage work across Hertfordshire and north west London.
Ready to Get This Sorted?
Call for a fixed price, or leave your details and we will call you back. The phone is answered 24 hours a day.
Download the Drain 247 Brochure
The 2026 company brochure: the services, the area we cover, and how a visit works. Handy to send on to an architect, a builder or a buyer.