UK blocked drain guidance

Blocked drain? Get the facts before you panic — or pay

What clearing a drain really costs, what you can safely try yourself, the warning signs of a bigger problem, and how to find an insured drainage engineer fast.

£85–£450 typical clearanceSame day for most blockagesCCTV £275+ if a survey is needed
Cited sourcesevery figure referencedNo scare tacticshonest, plain guidanceVetted engineersinsured & checked

In 40 seconds

Clearing a blocked drain in the UK typically costs £85–£450 depending on the method: simple rodding is often around £85–£140, high-pressure water jetting around £200–£300, and a CCTV drain survey £275–£450 if the cause needs investigating. Most household blockages are cleared the same day. The common causes are fat and food in kitchen drains, wipes and excess paper in toilets, and root ingress or collapsed pipes outside. Some blockages you can safely clear yourself; recurring or sewage-backing-up blockages usually mean a deeper fault that needs an insured drainage engineer.

A blocked drain is stressful and the trade knows it — which is where overcharging creeps in. The pages below give honest cost ranges, what you can safely try first, and how to tell a quick fix from a problem that needs a camera and a professional.

£85–£450
typical clearance cost
£200–£300
high-pressure jetting
£275–£450
CCTV drain survey
Same day
for most blockages

Cost & pricing

What it costs to clear a drain — by method, not by scare story.

Cost

How much does it cost to clear a blocked drain?

Rodding, jetting, CCTV survey and excavation costs, plus the call-out and out-of-hours premiums to expect.

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Definition & identification

What's actually blocking your drain — and how to tell.

Causes

What causes blocked drains?

Fat, wipes, roots and collapsed pipes — the common causes, the tell-tale signs, and which point to a bigger problem.

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Process & how-to

What you can safely try before you call anyone.

DIY

How do I unblock a drain myself?

The safe DIY methods that often work, what to avoid, and the clear line where you should stop and call a professional.

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Risk & reassurance

Emergencies, sewage and what counts as urgent.

Emergency

Is a blocked drain an emergency?

When a blockage is genuinely urgent, what to do right now, and what a fair emergency call-out should cost.

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Comparison & choosing

Who is responsible — and how to pick a fair engineer.

Responsibility

Who is responsible for a blocked drain?

Homeowner vs water company responsibility, what's free to you, and how to choose an insured engineer if it's your bill.

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How it works

Honest guidance first. Help when you need it.

We answer the questions homeowners search for during a drainage problem — costs, causes, safe DIY and responsibility — then, if you need someone, match you with a vetted, insured drainage engineer who diagnoses before charging. No obligation, and you agree any price with the engineer directly.

Blocked drain not shifting?

Tell us the symptoms and we'll match you with a vetted, insured drainage engineer who can attend and quote clearly.

Free to be matched. You agree any price with the engineer directly.