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Planned work · London · from £95 cleared

Blocked Sink in London

Kitchen sinks block with grease, bathroom basins with hair and soap, different blockages, same result.

Blocked sink in London
No call-out feeNo night or weekend surchargeFixed price before we start12-month workmanship guarantee

Cleared properly through the trap and waste run, not just plunged into next week.

What you get

Blocked sink in London: what the price includes

  • 01
    Trap-out clearing

    The trap comes off and the waste arm gets cleared to the stack, not a poke, a clean.

  • 02
    Both directions checked

    A sink that gurgles when the bath empties has a shared-waste issue, we check the join, not just the bowl.

  • 03
    Grease habits ended

    The kitchen sink that blocks quarterly has a cause; we'll show you what came out and what changes it.

  • 04
    Standing-water safe

    Chemical-free clearing, important, because half the sinks we visit have already had caustic soda poured in.

  • 05
    We look past the trap

    Anyone can clear a bottle trap. If the blockage is beyond it, in the branch, the stack or the gully outside, clearing the trap buys you a fortnight. We establish how far down it sits before deciding whether this is a ten-minute job or a drainage one.

What this means in London

Local conditions we work around

Most of London still drains through Victorian infrastructure, much of it combined sewers carrying foul and surface water in the same pipe. Two consequences follow. Heavy rain can surcharge the system and push water back up through the lowest gully in a property, which is why some basements flood in a storm without any blockage at all. And the older clay runs beneath gardens and pavements have joints that tree roots find, so root intrusion is one of the most common things our cameras record.

Where we do this in London

Covered across London

Same published rate card and the same twelve-month workmanship guarantee everywhere below, there is no postcode loading. Each area has its own page with an arrival time taken from our job records rather than chosen for a website.

Straight answers

Blocked sink in London, your questions

What does clearing a sink cost?
£95–£150 fixed. If the blockage turns out to be downstream in the shared run, we quote that separately before touching it.
Why does it smell even when draining fine?
Biofilm in the overflow and waste, clean the visible trap all you like, the overflow channel is the culprit. It's a five-minute extra during the visit.
Boiling water and soda crystals, fine to try?
Soda crystals and hot (not boiling, on plastic) water are the one home remedy we endorse for grease. Caustic soda is the one we beg you to skip, see the drain guide for why.
Will caustic drain cleaner fix it?
On hair in a bathroom trap, sometimes. On kitchen fat, no, it cools and sets further down, adding to the blockage. It also makes the pipework hazardous to open, so please tell us if you have used any before we arrive.
Both my sinks are blocked at once.
Then the problem is downstream of both, in the shared branch or the stack, and no amount of plunging one will help. That is a drainage job rather than a sink job, and it is worth saying on the phone so we bring the right van.
How do I stop it happening again?
Fat into a jar rather than the sink, a strainer over the plughole, and a kettle of hot water plus washing-up liquid weekly. Unglamorous, free, and it prevents almost every kitchen blockage we get called to.
Is London drainage different?
Much of it is Victorian, and a great deal of it is combined, foul and surface water in the same pipe. Two things follow: heavy rain can surcharge the system and push water back up the lowest gully in a property with no blockage present at all, and the old clay runs under gardens and pavements have joints that tree roots find. Root intrusion is one of the most common things our cameras record here.
24 hours · 365 days · London

Water where it
shouldn't be? Call.

A person answers, not a menu. You'll have an arrival time and a price range before you hang up.

020 3674 8514

Or WhatsApp 07865 292684, photos help us bring the right parts

Our engineers