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How Much Does It Cost to Unblock a Drain in the UK?

Drain unblocking cost UK

Quick answer: The costs for drain unblocking vary depending on the time the engineer is with you, the type of unblocking needed (jetting, rodding, etc), and whether there are any added complexities such as CCTV surveys or pipe repairs.

Drainsco charge fixed half-hourly rates with no additional call-out fees or emergency surplus costs. Any additional work needed will be quoted upfront ahead of any work being carried out.

Give us a call on 0808 303 0777 for more information on our rates.

Jump to a section

  • Drain unblocking cost UK: the real numbers
  • What actually changes the price
  • How to avoid overpaying
  • FAQs

Drain Unblocking Cost in the UK

Across most cost guides and trade pricing data from 2025 and 2026, a standard blocked drain in the UK typically costs £80 to £250 to clear, with the honest national average sitting closer to £100 to £150 for a straightforward job. That’s rods or a light jet, no digging involved, no CCTV survey required.

A few things pull that number in different directions:

  • A simple sink, bath or toilet unblock tends to be cheapest, often £65 to £90.
  • General drain rodding averages around £85, based on trade pricing data.
  • Jetting, which uses high-pressure water to blast through tougher blockages, typically runs £70 to £175, though more stubborn commercial-grade jobs can climb past £450.
  • A CCTV drain survey, used when the cause isn’t obvious, adds anywhere from £80 for a quick look to £250-£300 for a full jetted survey with a written report.

Honestly, the one thing that changes the bill more than anything else is timing. The exact same blockage, cleared at 3 pm on a Tuesday versus 11 pm on a bank holiday, can be a completely different invoice for most drainage companies. But not for Drainsco. Our rates remain the same no matter the day or time.

What Actually Changes the Price

A few readers have asked us over the years why one job costs £90 and another, seemingly similar one, costs £300. It usually comes down to a handful of factors.

  1. Where the blockage sits: A blockage under your kitchen sink is a five-minute job. One three metres down a manhole is something different.
  2. What’s causing it: Soap scum responds well to rodding or jetting. Tree roots or a collapsed section of pipe need more serious intervention, sometimes relining or excavation.
  3. Access: Can the engineer get a jetting hose or camera to the blockage easily, or is it behind a manhole cover that hasn’t been lifted in a decade?
  4. Whether it’s actually your responsibility: This one catches people out more than any other, and it’s worth its own section…

How to Avoid Overpaying

A few habits go a long way here, and none of them require any special skill.

  • Scrape fat and food waste into the bin rather than down the sink, even when it’s still liquid. It sets the moment it cools.
  • Bin wipes, cotton pads and sanitary products instead of flushing them, no matter what the packaging claims.
  • Ask upfront whether a company charges a fixed fee or an hourly rate plus call-out, so you’re not caught out mid-job.
  • Before booking anyone, ask whether the blockage might be in a shared or lateral drain, since that could mean the work is your water company’s responsibility, not yours.
  • Get a written quote before work starts. Transparent, fixed pricing avoids the classic “it turned out to be more complicated” conversation.

The Bottom Line

For most UK homes, expect £80 to £250 for a standard blocked drain, with emergency or out-of-hours work adding to that.

Bristol and most regional cities tend to track close to the national average, while London runs higher. If you’re dealing with a blocked drain, blocked sink or need emergency drain unblocking, it’s always worth getting a fixed, upfront quote rather than an open-ended hourly rate, and worth checking who’s actually responsible before you pay for anything.

If you’re in Bristol or anywhere else across Drainsco’s coverage area and need a hand, our engineers offer transparent, fixed-price quotes with no call-out fee and are available 24/7, including bank holidays. Get in touch with Drainsco for a fast, honest assessment of your blocked drain.

Frequently Asked Questions

Is emergency drain unblocking more expensive than a scheduled visit?

Not with Drainsco! We don’t charge any call out fees or increased rates for out of hours or weekend jobs. Drainsco charge transparent rates based on the time taken and complexity of a job, all of which will be explained up front.

What’s the difference between rodding and jetting a drain?

Rodding uses flexible rods to physically push through a blockage and tends to suit simpler clogs, while jetting uses high-pressure water to blast through tougher build-ups like compacted fat or root ingress, and generally costs more.

Do I need a CCTV drain survey every time?

No. It’s typically only needed when the cause of a blockage isn’t obvious, when problems keep recurring, or before more significant repair work, since it lets an engineer see exactly what’s happening inside the pipe before recommending a fix.

Can I unblock a drain myself before calling a professional?

Simple sink or toilet blockages can sometimes be cleared with a plunger or a drain rod, but recurring blockages, bad smells or slow drainage across multiple fixtures usually point to something further down the system that’s best assessed by a professional.

About the author: Written by the team at Drainsco; fully qualified, insured and DBS-checked drainage and plumbing engineers serving communities across the UK.

    About Drainsco

    As your local, fully qualified drainage specialists, we are committed to providing your community with outstanding plumbing and drainage service and expertise. We are here to help you with any issues, from minor blockages to major repairs and installations, with the attention and care you deserve.

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