Independent Bristol drainage engineers · Checkatrade approved
Areas we cover
BS8
Some of the oldest drainage in Bristol runs under Clifton, and almost none of it can be dug up without a conversation with the planning department. So we work from the inside out — and we know where the water goes on a hill.
Postcode
Property stock
Typical pipework
Most common call
Local knowledge
Clifton is older than most of the drainage we work on. Large parts of it were built between the 1790s and the 1850s, which means early clay, some brick, and a network that was laid for a handful of grand houses rather than the dozens of flats those houses have since become.
Two things follow from that, and they shape almost every job we do in BS8.
Clifton is built on a hill, and the drainage follows it. Water moves fast down Sion Hill, Constitution Hill and the runs off Clifton Down — which is fine, until something restricts it further along. Then everything upstream backs up into whatever sits lowest.
In practice that is nearly always a basement or garden flat. If you live in one, you are at the bottom of a stack serving several homes above you, and you will know about a blockage long before anyone else in the building does. That’s not a fault with your flat — it’s simply where the water finds a way out first.
“When a Clifton basement flat calls us, the problem usually isn’t in that flat. It’s four floors up, or forty metres down the run. We start by working out which.”
— Anthony Lord, Flow Sure Drains
Much of Clifton sits in a conservation area, and a great many buildings are listed. That has a very practical consequence for drainage: excavating a driveway, a front lightwell or a crescent pavement is rarely a simple decision, and sometimes isn’t a decision that’s available at all.
Which is why we lead with no-dig repair here more than anywhere else in Bristol. A cracked or root-damaged section can nearly always be lined from inside the existing pipe — the liner follows the original route, nothing above ground is disturbed, and no planning question arises.
When we do quote excavation in Clifton, it’s because the camera has shown a genuine collapse. We’ll show you that footage before proposing it.
Princess Victoria Street, The Mall and Regent Street pack a lot of restaurants, cafés and bars into a small area, most of them in buildings never designed for commercial catering. Grease lines here need scheduled jetting rather than reactive clearing, and a blockage tends to affect neighbouring premises rather than just the one that caused it.
Royal York Crescent, Cornwallis Crescent and the narrower Village streets are not places you park a large vehicle casually. Most of BS8 is permit-controlled and loading is restricted in the Village during trading hours. It rarely stops us, but tell us when you call and we’ll plan the approach rather than discover the problem on arrival.
Blocked drain in BS6?
Coverage
From the Village up to the Downs and down toward Hotwells. This is roughly where our Clifton work clusters.
Simplified street layout, not to scale. Dashed line shows approximate core coverage.
Royal York Crescent
Princess Victoria Street
The Mall
Regent Street
Clifton Hill
Sion Hill
Victoria Square
Pembroke Road
Alma Road
Redland & Cotham
City centre & Harbourside
Bishopston
Bedminster
We’re in Clifton and Redland most weeks — if you’re on the boundary between the two, either page applies.
What we do here
Everything we offer across Bristol is available in BS8. These are the ones this side of the city needs most — and no-dig repair is genuinely used more here than anywhere else we work.
Not sure which you need? Describe what’s happening on the phone and we’ll tell you — including when the answer is that you don’t need us.
Reviews left on Google by people whose drains we’ve actually cleared.
EXCELLENT
Based on 126 reviews
Posted on Google![]()
Becky FrapeTrustindex 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![]()
Chris RentyTrustindex 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![]()
HelenTrustindex 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![]()
Adam RiderTrustindex 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![]()
Janet AdamsTrustindex 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![]()
VICKI whittalTrustindex verifies that the original source of the review is Google.
Attended on time and solved the drainage issue promptlyPosted on Google![]()
Laura ChapmanTrustindex 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![]()
Katherine LauTrustindex verifies that the original source of the review is Google.
Quick service and professional.Posted on Google![]()
Birsen OskayTrustindex 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.
Clifton questions
Because you’re at the bottom of the stack. In a Clifton house divided into several flats, everyone above you drains through the same run — and when that run restricts, the water comes out at the lowest available point. That’s your flat, and it says nothing about your own pipework.
It also means the cost is rarely yours alone. If the run serves several homes it’s likely a shared lateral drain, which is normally Wessex Water’s responsibility rather than the residents’. We’ll establish that before anyone pays. More on drain responsibility.
Nearly always, yes — and in Clifton that’s usually the only sensible route. A cracked, fractured or root-damaged section can be lined from inside the existing pipe. The liner follows the original route, cures hard in place, and nothing above ground is touched.
That means no excavation of a lightwell, pavement or crescent frontage, and no planning or listed-building consideration arising from the repair itself. If we ever do propose excavation here, it’s because the camera has shown a genuine collapse — and we’ll show you that footage first. More on no-dig repairs.
Yes, and the Village is one of the places where scheduled maintenance genuinely pays for itself. Kitchens on Princess Victoria Street, The Mall and Regent Street sit in buildings never designed for commercial catering, often sharing runs with neighbouring premises.
That means a grease blockage frequently affects more than one business, and it happens at the worst possible time. Quarterly jetting costs a fraction of one lost Saturday service. Commercial contracts.
Yes, though it takes a bit of planning. Most of BS8 is permit-controlled and the Village has loading restrictions during trading hours. We work around both regularly.
Just mention any restriction outside your property when you call — it’s much easier to plan for than to solve on arrival.
Usually the same day. BS8 and BS6 are the two areas we’re in most often, so we’re frequently nearby already. You’ll be given a realistic arrival window when you call — [2 to 4 hours] in most cases.
Start by finding out whether it’s actually a private drain. Where a run serves several properties it’s usually a shared lateral, and Wessex Water rather than the residents or the freeholder is normally responsible for it.
If it does turn out to be private, we can survey and quote in a form that a freeholder, managing agent or group of leaseholders can work from — including a written report and footage, so nobody is asked to take the cost on trust.
Not inherently. Early clay laid properly and left undisturbed can still run perfectly well after 150 years. What causes problems is what’s happened since — joints displaced by ground movement, roots finding a way in, and far more water and waste going through than the run was built for.
Age does mean we treat it carefully. Jetting pressure is matched to the pipe, and where a run looks fragile we survey it first rather than risk turning a crack into a collapse.
Yes. This page covers BS8 broadly — Clifton, Clifton Village, Hotwells and up toward Clifton Down. We’re also regularly in Redland and Cotham next door.
Tell us your postcode, what the drain is doing, and how many flats are in the building. That last one tells us more than you’d think — and often tells us whose bill it is.