Independent Bristol drainage engineers · Checkatrade approved

Open daily · 0117 427 4565

Bristol & Bath · Same-day service

Blocked drains in Bristol, cleared today

We’re an independent drainage company covering Bristol, Bath and the surrounding area. We find the problem, tell you what it will cost before we start, and don’t leave until the water is running properly again.

Request a call back

Tell us the postcode and what’s happening. We’ll ring you straight back.

Or call us now — 0117 427 4565

We’ll only use these details to contact you about your drain. No marketing, ever.

Same-day response

Most Bristol call-outs attended today

Public liability insured

Certificate available on request

Proper equipment

CCTV cameras and high-pressure jetting

Local and independent

Bristol-based, not a national chain

Where's the problem?

What's actually going wrong?

Most people call us with a symptom rather than a diagnosis, which is exactly right — working out the cause is our job. But it helps to know what you're looking at. Choose the closest symptom below.

Your drain run Nothing selected yet
Diagram of a household drain run in a Bristol property A side view showing how water leaves the house, passes the gully and inspection chamber, travels along the main run and joins the shared lateral drain. The likely position of the blockage is marked when a symptom is selected. House Gully Soil pipe Chamber Main run Shared

Pick a symptom on the left and we'll explain what it usually means, how urgent it is, and what to do right now — no jargon.

Is it your drain or Wessex Water's?

It depends on what the pipe serves, not where the problem shows up.

If the drain serves only your property and the blockage is within your boundary, it’s usually yours. If several homes feed into the same run, or your neighbours have problems at the same time, it’s likely a shared lateral drain — and in this area that’s normally Wessex Water’s responsibility rather than yours.

The quick rule: if more than one property is affected at once, it is rarely a private drain.

We’ll tell you which it is before charging you for anything, including if you should be calling Wessex Water instead of us. Road gullies and highway flooding are different again — those are reported to Bristol City Council.

What’s affected

Usually whose responsibility

Pipes inside your home

You — the property owner

Drain serving only your property, within your boundary

You — the property owner

Shared drain serving two or more properties

Wessex Water (lateral drain)

Public sewer in the road

Wessex Water

Road gully or highway flooding

Bristol City Council

General guidance for the Bristol area. Check with Wessex Water or Bristol City Council for your specific situation — or call us and we’ll tell you what we think you’re dealing with.

What we do

Clearing a blockage is the everyday job. Finding out why it happened is what stops you calling us again in three months.

Blocked drain clearance

We locate the blockage, clear it properly, then flow test to confirm it's gone rather than moved along the pipe. Blocked manholes and gullies included.

CCTV drain surveys

For homebuyers, landlords, insurers and drains that keep blocking. You keep the footage and a report written in plain English.

Drain jetting & cleaning

High-pressure water cuts through fat, silt and scale to restore the full bore of the pipe, not just a channel through the middle of the blockage.

Drain repairs & relining

Cracked, displaced or root-damaged pipes repaired from the inside wherever possible, so your garden or driveway stays as it is.

Toilets, sinks & showers

Indoor blockages cleared without dismantling half the bathroom, and without leaving the mess behind for you to deal with.

Commercial & maintenance

Scheduled cleaning for pubs, cafés, HMOs and managing agents — so a blockage never decides your closing time for you.

Also: root removal and descaling, blocked sinks, baths and showers, and CCTV rat detection if you’ve got rats coming up from the drains.

How it works

Four steps, in the same order every time. If we can’t complete step four, the job isn’t finished.

1

You call us

Tell us your postcode and what’s happening. We’ll say honestly whether it sounds like today or later in the week.

Two minutes

2

We find the problem

On site we work out where the blockage actually is, before anything gets pushed further down the pipe.

Before any work

3

We agree the price

One fixed figure, told to you before we start. If you’d rather not go ahead, there’s nothing to pay.

Your decision

4

We clear and prove it

Cleared and flow tested while we’re still there, then we explain what caused it and how to stop it happening again.

12-month call-back

The person who quotes is the person who does the work

Flow Sure Drains is run by Anthony Lord. There’s no national call centre, no subcontracted stranger turning up, and no scripted quote from someone who hasn’t seen your drain.

We’ve been on Checkatrade for 8 years, with verified reviews from customers across Bristol and Bath, and around 118+ reviews on Google. Public liability insurance is in place, and the certificate is available on request.

Most of our work is in central and north Bristol, where Victorian terraces and converted flats share older clay drain runs. That’s the pipework we know best.

Anthony Lord

Owner, Flow Sure Drains

Recent jobs around Bristol

Real drains, real properties, real before and after. No stock photography — every picture on this page is a job we actually did.

Before

Blocked gully

After

Cleared and flow tested

Flow Sure Drains engineer high-pressure jetting a blocked drain in Bristol

On site

High-pressure jetting

Diagnosis

Root ingress found on camera

Photograph every job you can. Even a quick phone snap beats stock, and area pages need three per area.

What Bristol customers say

Reviews left on Google by people whose drains we’ve actually cleared.

Posted on Google Google
Becky Frape profile picture
Becky Frape
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Very straight forward, no hidden costs, very friendly and super helpful. Highly recommend!
Posted on Google Google
Chris Renty profile picture
Chris Renty
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Tony at Flow Shure is fast to act on a drain issue and came to my support to fix a problem not just once but a second time at no extra expense 6 months later at short notice. He has provided the best service I've ever had from a tradesmen.
Posted on Google Google
Helen profile picture
Helen
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
This is the second time SureFlow have come to my rescue, as ever, quick, efficient - gets the job done, what more do you need?!
Posted on Google Google
Adam Rider profile picture
Adam Rider
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Great service and quickly got our slow draining shower sorted - thank you 👍
Posted on Google Google
Janet Adams profile picture
Janet Adams
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Antony was very prompt, efficient, and friendly. The problem was sorted very quickly.
Posted on Google Google
VICKI whittal profile picture
VICKI whittal
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Attended on time and solved the drainage issue promptly
Posted on Google Google
Laura Chapman profile picture
Laura Chapman
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Responsive, timely and clear communication throughout. Quick appointment and efficiently sorted the problem. Would use again and would recommend.
Posted on Google Google
Katherine Lau profile picture
Katherine Lau
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Quick service and professional.
Posted on Google Google
Birsen Oskay profile picture
Birsen Oskay
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We reached a solution very quickly. It was a professional job; thank you. I recommend it to everyone.

What it costs

Most complaints about drainage companies come down to the same thing: nobody said what it would cost until the work was already done. We do it the other way round.

FROM

£95 no VAT to pay

Standard drain clearance at a domestic property

We won’t quote a firm figure over the phone for a job we haven’t seen — but we’ll tell you what’s likely and what would push it higher.

Where we work

We cover Bristol, Bath and the surrounding towns. Drains don’t follow postcode boundaries and neither do we — if you’re just outside this list, call anyway. If we can reach you today, we will.

Most of our work is in central and north Bristol, where Victorian terraces and converted flats share older clay drain runs.

Central & inner Bristol

Outer Bristol

Bath & surrounding towns

We also work regularly in Southville, Totterdown, Brislington, Knowle, Horfield, Henleaze, Westbury-on-Trym, Downend, Emersons Green, Montpelier and St Werburghs.

Common questions

The things people most often ask us on the phone.

How much does it cost to unblock a drain in Bristol?

A standard domestic drain clearance works to a fixed price agreed on site, typically from £95. There’s no call-out fee, and no extra charge for evenings, weekends or bank holidays.

We won’t commit to a firm figure over the phone for a job we haven’t seen — that’s how people end up with a bill that doesn’t match the quote. We’ll tell you honestly what’s likely and what would push it higher, usually a blockage that turns out to be a structural fault rather than a build-up.

It depends on what the pipe serves, not where the problem appears. If the drain serves only your property and the blockage is within your boundary, it’s usually yours. If several homes share the run, or your neighbours are affected at the same time, it’s likely a shared lateral drain and normally Wessex Water’s responsibility.

A simple rule: if more than one property is affected at once, it is rarely a private drain. We’ll tell you which it is before charging you for anything.

Usually, yes. Same-day attendance is most of what we do across Bristol and Bath. When you call you’ll be given a realistic arrival window — [2 to 4 hours] in most cases — rather than an optimistic one, and if we’re running behind you’ll hear from us.

No. We come and look at no charge, and if you decide not to go ahead once you’ve heard the price, there’s nothing to pay and we leave.

Because the previous blockage was moved rather than removed, or because something is still in the pipe catching debris — a fat line, tree roots through a joint, a cracked or collapsed section, or a pipe laid at the wrong gradient.

If it’s happened more than twice in the same place, another clearance only treats the symptom. A CCTV drain survey shows the actual cause, and you keep the footage.

Rarely, on a genuine blockage. They may shift a light build-up near a plughole but won’t clear wipes, roots, silt or a broken pipe. They can also damage older pipework and make the job more hazardous for whoever opens it up.

If you’ve already used one, please tell us when we arrive — it changes how we approach the job safely.

Stop using water in the property — taps, toilets, the dishwasher and the washing machine. Anything you send down the pipe has nowhere to go and adds to what comes back up.

Don’t keep flushing the toilet to test it, and don’t pour chemicals down. If there’s dirty water on the floor or standing outside, keep children and pets away from it until it’s been cleared and the area disinfected.

Yes — pubs, cafés, restaurants, shops, offices, HMOs and managed flats. Kitchen grease lines and shared runs in converted buildings are two of the most common problems we’re called to in Bristol.

For premises that can’t afford to close, planned maintenance works out considerably cheaper than emergency call-outs.

Tell us your postcode and what's happening

That’s usually all we need to tell you what you’re dealing with and when we can get to you.