Drain Unblocking in London — Same-Day Clearance, Guaranteed
Blocked sink, toilet, or outdoor drain — we clear it fast with no mess
A blocked drain is one of the most common plumbing problems in London homes, flats, and commercial premises. Whether it’s a kitchen sink that won’t drain, a toilet that’s backing up, or an outdoor drain overflowing onto your patio, 247 Plumber London responds fast with the right equipment to clear it properly. We use high-pressure water jetting, professional rodding, and CCTV survey technology to diagnose and fix even the most stubborn blockages. Our engineers work across all London boroughs, available day and night including weekends and bank holidays. There’s Competitive Rates, pricing is agreed before work starts, and we guarantee a clean, effective result.
Common Drain Blockages We Clear in London
Blocked Kitchen Sink (Grease and Food Build-Up)
Kitchen sinks are the most frequently blocked drains in London properties. Over time, cooking fat, grease, food particles, and soap residue accumulate inside pipework, narrowing the bore until flow slows to a trickle — and eventually stops altogether. Off-the-shelf drain chemicals rarely clear this type of blockage permanently. We use high-pressure water jetting to cut through the grease and flush the pipe clean from the inside, restoring full flow.
Blocked Bathroom Drain (Hair and Soap)
Bathroom basins and shower trays typically block from a combination of hair, soap scum, and toothpaste residue. The blockage usually builds up just inside the waste outlet or in the trap, but can extend further down the pipework. We clear bathroom blockages cleanly and efficiently, and can advise on preventative measures to slow future build-up.
Blocked Toilet
A toilet that won’t flush or backs up when flushed needs urgent attention — particularly in a flat or house where it’s the only facility. Causes range from excess toilet paper and wipes (even so-called “flushable” ones) to foreign objects accidentally flushed by children. We clear toilet blockages rapidly, testing thoroughly to confirm the line is completely clear before we leave.
Outdoor Drain Overflow
Outdoor drains block from leaves, silt, mud, and debris accumulating in the trap or channel. When a surface water drain backs up, water can flood paths, driveways, and even enter properties at low points. We clear outdoor drains using rodding and jetting equipment and can install drain guards to reduce future blockages.
Collapsed Drain
If a drain has partially or fully collapsed — due to ground movement, age, tree root damage, or poor installation — clearing the blockage is only the first step. A CCTV drain survey reveals the structural condition, allowing us to recommend the appropriate repair method: patch lining, full pipe replacement, or no-dig repair options where access is limited.
Tree Root Ingress
Tree roots are naturally drawn to moisture and can penetrate drain joints and cracks, growing inside the pipework and causing severe blockages. This is particularly common in older London properties with Victorian-era clay drainage. High-pressure jetting can cut through root ingress, and CCTV survey confirms the extent before we recommend a lasting repair solution.
Drain Clearance Methods We Use
High-pressure water jetting: A powerful jet of water at controlled pressure breaks through blockages and scours the pipe walls clean — more effective than rods for grease, scale, and root ingress.
Rodding: For simple blockages, professional drain rods allow physical clearance without the need for jetting equipment. Fast and effective for many standard toilet and soil pipe blockages.
CCTV drain survey: A camera passed through the drain reveals the exact location and nature of the blockage or damage, allowing targeted repair rather than guesswork.
No-dig repair options: Where possible, we use patch lining and pipe relining to repair damaged drains without excavation — saving time, disruption, and cost.
How We Handle Drain Unblocking in London
- Initial call: You describe the problem and we dispatch an engineer — same day in most cases.
- Assessment: The engineer inspects the affected drain, identifies the blockage location, and provides an upfront price before starting.
- Clearance: We use the appropriate method — jetting, rodding, or a combination — to clear the blockage completely.
- Test: We flush the drain thoroughly to confirm full flow is restored and there are no secondary blockages downstream.
- CCTV if needed: Where the cause is unclear or blockages are recurring, we can perform a CCTV survey to check for structural issues.
- Prevention advice: We advise on simple steps to reduce future blockages and can supply and fit drain guards where appropriate.
Drain Unblocking Across London
We clear drains throughout London, including Westminster, Camden, Islington, Hackney, Tower Hamlets, Southwark, Lambeth, Wandsworth, Greenwich, Lewisham, Bromley, Croydon, Sutton, Merton, Kingston upon Thames, Richmond, Hounslow, Ealing, Brent, Harrow, Barnet, Enfield, Haringey, Waltham Forest, Newham, Redbridge, Barking, Havering, Kensington, Fulham, Clapham, Brixton, and Peckham.
Why London Customers Choose Us
- Gas Safe registered engineers (ask to see the card on arrival)
- Upfront pricing — agreed before we start, no hidden extras
- Competitive Rates
- Fully insured and DBS checked
- 24/7 service including bank holidays
Frequently Asked Questions
How quickly can you attend a blocked drain in London?
In most cases we can attend the same day — often within a few hours of your call. For drain emergencies involving sewage backup or flooding, we treat these as priority and aim to respond as fast as possible.
Will there be mess?
We take care to protect your property during drain clearance. Jetting and rodding are contained processes, and our engineers use protective sheeting and clean up thoroughly before leaving.
Should I try drain chemicals first?
Chemical drain cleaners can work on very minor blockages, but they rarely clear significant grease or hair build-up fully, and can damage some pipe materials. They also pose a risk if they splash onto skin or surfaces. For most blockages, professional clearance is more effective and quicker.
What if the drain has collapsed?
A collapsed drain requires repair, not just clearance. We use CCTV to assess the damage and recommend the most appropriate repair — which may be patch lining, pipe relining, or excavation and replacement depending on the severity.
What is a CCTV drain survey?
A small camera is passed through the drain on a flexible rod, transmitting live video so we can see exactly what’s inside. This identifies blockages, cracks, root ingress, displaced joints, and other defects without any digging.
Why does my drain keep blocking?
Recurring blockages usually indicate an underlying problem — either a build-up of grease or hair that was never fully cleared, a structural defect causing debris to collect, or tree root ingress. A CCTV survey helps identify the root cause so we can fix it permanently rather than repeatedly clearing the symptom.
Do you clear commercial drains?
Yes. We work in commercial as well as residential properties across London. Restaurant kitchens, retail units, office blocks, and housing blocks all benefit from our professional drain clearance service.
How much does drain unblocking cost?
Cost depends on the nature and location of the blockage. We provide an upfront quote before any work starts — you’ll know the price before we begin, with no hidden extras.
Can you unblock a neighbour’s shared drain?
Shared drains are the joint responsibility of connected properties. We can clear shared drains and advise on responsibility. In some cases, Thames Water or your local authority may be responsible for certain sections of the drainage system.
What can I do to prevent blocked drains?
In the kitchen, avoid pouring fat and oil down the sink — collect it in a container and dispose of it in the bin. In bathrooms, use a hair catcher in shower drains. Never flush wipes, cotton buds, or sanitary products down toilets. Outdoor drains benefit from a regular clear-out of leaves and debris.
Blocked Drain in London? We’ll Clear It Today
Available 24/7 across all of London
Email: info@247plumberlondon.co.uk