How Much Does Drain Unblocking Cost in the UK?
In short
Most domestic drain unblocking in the UK costs roughly £80 to £250, depending on access, the cause of the blockage and the time of day. The bigger variable is whether the drain is simply blocked or damaged: a drain that blocks repeatedly usually needs a CCTV survey and a repair rather than another clearance. If the blockage sits in a shared or public sewer, your water company clears it at no charge.
Most domestic drain unblocking jobs in the UK fall somewhere between roughly £80 and £250, and the majority of the blockages we attend are cleared on the first visit within an hour or two. The wide range exists because "a blocked drain" covers everything from a soft fat blockage under a kitchen sink to a root mass in a collapsed section of Victorian clay pipe.
The single biggest thing that affects what you pay is not the company you call — it is whether the blockage is a one-off obstruction or a symptom of a damaged pipe. This guide explains how pricing actually works, so you can tell the difference before you commit to anything.
What affects the price of unblocking a drain
Every quote is built from the same handful of factors. Understanding them makes it obvious why two jobs on the same street can be priced differently.
- Access — a blockage reachable from an external inspection chamber is quicker than one under a paved patio with no chamber nearby.
- The cause — wipes and fat clear quickly with jetting; root masses, scale and collapsed sections take longer and sometimes need repair.
- Time of day — genuine emergency cover costs more to staff, though we do not charge a call-out fee at any hour.
- Location of the fault — if the blockage is in a shared or public sewer, the water company may be responsible rather than you.
- Whether a survey is needed — repeat blockages usually warrant a CCTV survey so the underlying defect is found rather than cleared again.
Call-out charges and fixed prices
Be careful with "from £X" pricing. Some firms advertise a low headline rate and then add a call-out charge, a jetting surcharge, a minimum hourly block and VAT on top. Ask for the total price for the work described, in writing or by text, before the engineer starts.
We do not charge a call-out fee, day or night, and the price is confirmed before work begins. Blue light workers and senior citizens receive 10% off.
When unblocking is not the answer
If a drain blocks repeatedly in the same place, clearing it again is money spent on a symptom. Recurring blockages almost always mean something is holding material back: a displaced joint, root ingress, a partial collapse, a build-up of scale, or a section laid at the wrong fall.
A CCTV drain survey typically costs less than two or three repeat unblocking visits and tells you exactly what is there. Where a defect is found, a no-dig patch liner or drain relining will usually cost far less than excavation and leaves your drive and garden intact.
Who pays — you or the water company?
Since 2011, most shared drains and lateral drains that serve more than one property have been the responsibility of the local water and sewerage company. Drainage inside your boundary that only serves your property is yours to maintain.
That distinction can save you the whole cost of a job. If we find the blockage lies beyond your boundary or in a shared lateral, we will tell you and point you to the right water company rather than charge you for their work.
Still not resolved? 24/7 Emergency Drain Callouts can help
Drain blocked, sewage backing up, or water where it shouldn't be right now. Our engineers are available 24 hours a day with no call-out charge, and you get a fixed price before any work starts.