Independent Bristol drainage engineers · Checkatrade approved
Open daily · 0117 427 4565
Independent Bristol drainage engineers · Checkatrade approved
Open daily · 0117 427 4565
Areas we cover
BS6
Mostly interwar semis and post-war estates rather than Victorian terraces — which means two drains per house instead of one, soakaways that silt up quietly, and gardens big enough that digging is actually an option.
Postcode
Fishponds, Hillfields, Eastville, Downend and Staple Hill
Property stock
1930s pairs and post-war estates, plus older terraces
The local factor
Separate foul and surface water, unlike central Bristol
Most common call
Followed by misconnections found during extensions
Local knowledge
Fishponds is the first part of our coverage where most of the housing isn’t Victorian. There are older terraces along Fishponds Road itself, but the bulk of BS16 is interwar semi-detached pairs and post-war estate housing — and those were built to a completely different drainage standard.
It’s a more important distinction than it sounds, because it introduces two problems that simply cannot happen in Redland or Clifton.
Victorian Bristol was built with a combined system — everything, foul waste and rainwater alike, went down the same pipe. Interwar and post-war housing was built with separate systems: one run for foul waste, another entirely for surface water off the roof and the drive.
So in most of Fishponds you have two independent drainage networks in the same garden, and the fault could be in either. It also means a blockage in one may leave the other working perfectly, which is why people here often describe symptoms that sound contradictory.
“In Fishponds, ‘the garden floods but the toilets are fine’ isn’t a contradiction. It’s a diagnosis — you’ve got a surface water problem, not a foul one.”
— Anthony Lord, Flow Sure Drains
Plenty of houses here don’t send rainwater to a sewer at all. It goes to a soakaway — a pit in the garden, filled with rubble or a crate system, that lets water disperse into the ground.
Soakaways silt up. They fill gradually with fine sediment washed off the roof and drive, and their capacity drops year on year without anything visible happening. Then one heavy autumn downpour arrives, the soakaway can’t take it, and the garden or the drive is under water while every drain in the house runs perfectly.
It’s one of the more common calls we get in BS16, and it’s very often diagnosed as a blocked drain when it isn’t one. The fix is clearing or, where it’s beyond that, rebuilding the soakaway — not jetting a foul run that was never the problem.
Two systems in one garden creates a specific hazard whenever anyone does building work. A new kitchen, a downstairs WC or a utility room gets plumbed into whichever pipe is nearest — and if that’s the surface water run, the waste ends up going somewhere it should never go.
It usually shows up as a smell in the garden, or discoloured water at a gully that should only ever carry rain. It’s worth catching, and it’s a good reason to have a survey done before or after any extension work in this postcode rather than assuming the builder got it right.
Semi-detached pairs frequently share a drain run between them, which raises the same responsibility question as a converted terrace: if the pipe serves both houses, the repair may well be Wessex Water’s rather than yours. Worth establishing before anyone pays.
One genuine advantage of BS16 over the inner city: the gardens are bigger and access is usually straightforward. Where a run has actually collapsed and needs replacing, digging is a realistic option here in a way it simply isn’t in Clifton. We still line from inside where that’s the better answer — but we’re not forced into it by a listed frontage or a lightwell.
Blocked drain in BS6?
Housing stock
Three eras, three drainage standards, three different sets of problems.
c.1870–1900
Separate foul and surface water, often a shared run between the pair, and frequently a soakaway taking the rainwater. Sound pipework, but two systems to keep track of.
1945–1970s
Planned drainage, often serving several properties from one run, with surface water taken separately. Generally reliable, but shared runs mean shared problems.
Victorian, along the main road
The parts of BS16 that behave like the rest of Bristol — jointed clay, combined systems, roots at the joints. A minority here, but they’re the ones with the classic faults.
Coverage
Along Fishponds Road and out through Hillfields, Downend and Staple Hill, with the Frome valley running below.
Simplified street layout, not to scale. Dashed line shows approximate core coverage.
Fishponds Road
Lodge Causeway
Downend Road
Straits Parade
Forest Road
Guinea Lane
Hillfields Avenue
Rodney Road
Lodgeside Avenue
Cossham Street
St George
Bishopston
City centre
Redland
We also cover Downend, Staple Hill, Speedwell, Eastville and Emersons Green — call even if your street isn’t listed.
Recent work
Anonymised, but real. This is the kind of thing we’re called to in BS16 and how it usually goes.
01
[Street or sub-area] · [Month]
What the customer saw
[The symptom as they described it on the phone.]
What the customer saw
[The symptom as they described it on the phone.]
What the customer saw
[The symptom as they described it on the phone.]
02
[Street or sub-area] · [Month]
What the customer saw
[The symptom as they described it on the phone.]
What the customer saw
[The symptom as they described it on the phone.]
What the customer saw
[The symptom as they described it on the phone.]
03
[Street or sub-area] · [Month]
What the customer saw
[The symptom as they described it on the phone.]
What the customer saw
[The symptom as they described it on the phone.]
What the customer saw
[The symptom as they described it on the phone.]
What we do here
Everything we offer is available across BS16 — for both drainage systems, not just the foul one. Surface water and soakaway work is a bigger part of what we do here than anywhere else in the city.
Not sure which you need? Describe what’s happening on the phone and we’ll tell you — including which of your two systems it’s likely to be.
Reviews left on Google by people whose drains we’ve actually cleared.
Fishponds questions
Because those are two different systems. Most Fishponds houses have separate foul and surface water drainage, so the toilets can work perfectly while the rainwater side is struggling.
Nine times out of ten in BS16 it’s a soakaway that has silted up. It fills gradually with sediment washed off the roof and drive, loses capacity year by year without anything visible happening, and then fails on the first serious downpour. Clearing or rebuilding the soakaway is the fix — jetting the foul run wouldn’t touch it.
A pit in the garden filled with rubble or plastic crates, which takes rainwater from the roof and drive and lets it disperse into the surrounding ground rather than into a sewer. Common on interwar and post-war housing, and very common here.
Yes, we clear them. Where one is genuinely beyond clearing — collapsed, or so silted it’s lost its structure — it needs rebuilding, and we’ll tell you honestly which of the two you’re looking at.
In this postcode, yes — more so than most. With two separate systems in the same garden, a new kitchen, utility room or downstairs WC can easily be connected into the surface water run instead of the foul one.
That’s a misconnection, and it usually announces itself as a smell in the garden or discoloured water at a gully that should only carry rain. A survey confirms what’s connected where.
Very often, yes. Interwar semis were frequently built with one run serving both halves of the pair.
That matters because a pipe serving two properties is likely a shared lateral drain, which normally makes it Wessex Water’s responsibility rather than either household’s. If your neighbour has the same problem at the same time, don’t assume the bill is yours. More on responsibility.
We can dig here, and sometimes that’s genuinely the better answer. Gardens in BS16 are bigger and access is usually straightforward — unlike central Bristol, where a listed frontage or a lightwell often rules excavation out entirely.
We still line from inside where it’s the right call, because it’s quicker and cheaper. But we’re not forced into it, and you’re not paying for a no-dig repair on a run that would be easier replaced.
On post-war estate housing, planned drainage often serves several properties from a single run — so one fault affects a whole row.
It also means it’s almost certainly not a private drain. Report it to Wessex Water before arranging private work; they attend at no charge and clear it at no cost where it’s theirs.
Yes. This page covers BS16 broadly — Fishponds, Hillfields, Eastville, Downend, Staple Hill and Speedwell, along with Emersons Green. St George is next door and also covered.
Tell us your postcode and — this one matters here — whether the problem is indoors or only shows up when it rains. That single detail tells us which of your two systems we’re coming to look at.
Call us
Prefer to send a photo? WhatsApp 07507 551514
Landlord or agent? admin@flowsuredrains.co.uk
