Quick answer: As a general guide, unblocking a drain in the UK typically costs somewhere in the region of £80–£250 for a straightforward clearance, with more stubborn or hard-to-reach blockages sometimes running higher. The exact figure depends on how bad the blockage is, how easy the drain is to reach, the method needed, and the time of day. These are typical market ranges only — they vary by job and by company, so always get the price confirmed before any work begins. At Drains 4 Brighton we agree the price with you upfront and charge no call-out fee.
How much does it cost to unblock a drain?
There's no single fixed price for unblocking a drain, because every blockage is different. That said, honest UK market guidance looks roughly like this:
- Simple, easy-access blockages (for example a gully or a shallow blockage cleared with rods): often around £80–£150.
- Moderate blockages needing more time or a bit more work: commonly £150–£250.
- Stubborn or deep blockages requiring high-pressure water jetting or extended access work: can be £250 and upward.
Treat these as typical, approximate ranges rather than quotes. The right way to know what your job costs is to have a company assess it and confirm the price before starting. We'll always tell you the price for your specific blocked drain clearance before we begin — never a surprise at the end.
What affects the price?
Several practical factors move the cost up or down:
- Severity and depth of the blockage. A blockage sitting near the surface is quick to shift. One that's deep in the run, or fully compacted, takes longer and may need more powerful equipment.
- Access. An easy-to-reach inspection chamber or gully is cheaper to work on than a drain that's awkward, buried, or in a tight spot.
- Method needed. Simple blockages often clear with drain rods. Tougher ones — grease, silt, root-free debris build-up, or fully blocked runs — usually need high-pressure water jetting, which uses more specialist equipment and can cost more.
- Time of day. A booked daytime job is usually the standard rate. An emergency or out-of-hours call-out (nights, weekends, bank holidays) often carries a higher rate because of the urgency and timing.
- Whether it's a shared drain. If the blockage is on a shared or public drain, the cost may not be yours at all — it could be the water company's responsibility (see below).
Because these factors combine differently on every job, a reputable company will look at the situation and give you a clear price first.
Do you charge a call-out fee?
There are two common pricing models in the trade, and it's worth knowing the difference:
- Call-out fee model. You pay a fixed fee just for the engineer to attend, then the cost of the work is added on top. Sometimes the fee is separate even if nothing gets fixed.
- No call-out fee model. There's no charge simply for turning up. You're quoted for the actual clearance work, agreed before it starts.
Drains 4 Brighton works on a no call-out fee basis. We agree the price with you upfront before any work begins, so you know exactly where you stand — no attendance charge, no hidden extras, no pressure. If you'd like a price for your situation, just call and we'll talk it through.
Call 07459 599505
Is a blocked drain my responsibility or the water company's?
This matters for cost, because you shouldn't pay for a blockage that isn't yours to fix. As a rough rule of thumb:
- Drains within your property boundary that serve only your home are usually your responsibility.
- Shared drains (serving more than one property) and public sewers are often the water company's responsibility, and they may clear them at no cost to you.
It's not always obvious which applies, and the answer can change the picture entirely. We explain how to tell the difference in our guide: Who is responsible for a blocked drain?
If it turns out the drain is yours, we're here 24/7 across Sussex — with the price agreed upfront and no call-out fee.
Call 07459 599505