How Much Does It Cost To Unblock A Drain In The UK? (2026 Price Guide)

A blocked drain rarely happens at a convenient time, and the first question most people have is simple: how much is this going to cost?

Prices vary a lot depending on where the blockage is, how bad it is, and whether you need a quick fix or something more involved. A blocked sink is a different job (and a different price) to a blocked main drain that needs jetting or excavation.

Below, we'll cover average drain unblocking costs in 2026, what affects the price, the warning signs you shouldn't ignore, and how to avoid paying for the same problem twice.

Need help right now? Call us on 0203 870 1067 — we offer 24/7 emergency response for blocked drains.

Average cost to unblock a drain in the UK (2026)

Most domestic drain unblocking jobs cost between £80 and £250, with London and the South East typically running 20 to 30% higher.

These are guide prices, not a quote. The only way to know exactly what your job will cost is to have someone look at it, since access, blockage type and how far down the system the problem sits all make a real difference.

What affects the cost of unblocking a drain?

A few key things push the price up or down:

• Where you are — London and the South East usually cost more than the rest of the UK, due to higher call-out rates and access restrictions
• What's blocked — an internal sink or toilet is far cheaper to fix than an external or shared drain
• How the blockage is cleared — simple rodding is cheaper than high-pressure jetting, which is cheaper than excavation
• Access — drains that are hard to reach, deep underground, or shared with neighbouring properties usually cost more
• Timing — evening, weekend and emergency call-outs cost more than a standard weekday booking
• Whether it's a repeat problem — if the same drain keeps blocking, you may need a CCTV survey to find the root cause, which adds to the cost but saves money long-term

Signs you have a blocked drain

Catching a blockage early usually means a cheaper, faster fix. Watch out for:

• Water draining slowly from sinks, baths or showers
• Gurgling sounds from pipes or toilets
• Bad smells coming from drains, plugholes or outside gullies
• Water backing up or overflowing when you flush or run a tap
• Damp patches or puddles near outside drains after rain

Tip: if more than one fixture in your home is affected at once (for example, the toilet and the bath both draining slowly), the blockage is likely further down the system, not just in one pipe. This usually means a bigger job.

What to do if you have a blocked drain

1. Stop using the affected fixture — don't keep running water down a blocked sink or flushing a blocked toilet, as this can cause overflow
2. Avoid chemical drain cleaners — they rarely clear a real blockage and can damage older pipework
3. Check outside gullies — leaves, debris or grease build-up on the surface can sometimes be cleared safely by hand
4. Call a professional if it doesn't clear quickly — persistent or repeat blockages usually need proper equipment, not guesswork
5. Ask for a CCTV survey if it keeps happening — this identifies the actual cause, whether it's tree roots, a collapsed section or ongoing grease build-up

At ICE Drainage, we can attend for emergency unblocking and follow up with a longer-term fix if the root cause needs addressing.

How to avoid paying for repeat blockages

A one-off unblocking job fixes the immediate problem, but if blockages keep coming back, you're paying for the same issue more than once.

Know what shouldn't go down your drains Avoid pouring fat, oil, wet wipes or food waste down sinks and toilets, even if they seem to flush away fine at first.

Keep outside gullies clear Regularly clear leaves, debris and silt from outside drains, especially during autumn and after storms.

Get a CCTV survey if problems repeat If the same drain blocks more than once, a survey can identify the real cause, whether it's a partial collapse, root ingress or a design fault, rather than just treating the symptoms.

Consider planned maintenance For businesses or properties prone to blockages, a scheduled maintenance plan is usually cheaper overall than repeat emergency call-outs. Our drain unblocking service covers everything from a one-off blockage to ongoing planned care, so you're not caught out twice.

Contact us today

ICE Drainage provides drain unblocking, CCTV surveys and emergency call-outs for homes and businesses across the UK, with 24/7 response when you need it fast.

To book a survey or request urgent support, contact our team on 0203 870 1067 or [EMAIL]