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Commercial drainage in Bristol
Scheduled jetting, grease line management and emergency cover for pubs, restaurants, HMOs, offices and managed property. When commercial drains fail, the cost isn't the call-out — it's the hours you're shut. Planned maintenance is how you stop paying it.
Managing multiple sites? Send us the addresses and we'll price the portfolio.
How we work with businesses
- Reactive call-out
- from £[XX]
- Planned contracts
- from £[YY]
- Out of hours
- No premium
- Payment
- Invoice or PO
- Attendance
- Keyholder not required
Multi-site portfolios priced per property, not per call-out.
Scheduled, not reactiveVisits when you choose, not mid-service
Reports after every visitRecords for compliance and landlords
Public liability insuredCertificate and RAMS on request
Bristol-basedIndependent, not a national franchise
The commercial case
The call-out is the cheap part
A blocked drain in a commercial kitchen doesn't cost you a call-out fee. It costs you a service.
If the drains back up at 6pm on a Friday, you're not comparing our price against a competitor's — you're comparing it against covers you can't serve, staff you're paying anyway, and customers who booked somewhere else next time. In a busy Bristol restaurant that's several thousand pounds before anyone's turned a wheel on a jetting unit.
The same maths applies to an HMO with one bathroom out of use, an office with a closed toilet block, or a retail unit that fails a spot inspection.
Almost every one of those failures is predictable. Grease lines build at a known rate. Shared runs in converted properties block on a known cycle. The only variable is whether you find out on a Tuesday morning by appointment, or on a Saturday night by disaster.
That's the entire argument for planned maintenance, and it's why we'd rather sell you four scheduled visits than four emergencies.
Planned visits also catch structural faults early, while they're still a lining job rather than an excavation.
Who we work for
Sectors we cover in Bristol
Different premises fail in different ways. These are the patterns we see most across the city.
Restaurants, pubs and cafés
Grease is continuous and unavoidable, however careful the kitchen is. Gloucester Road, Whiteladies Road, Park Street and the Harbourside all run on drainage that was never designed for current volumes.
Quarterly jetting typicalHMOs and student housing
One original Victorian drain now serving four or five kitchens and bathrooms. Blockages are more frequent and affect more tenants — and wipes are a constant in shared houses.
6–12 monthlyManaging agents & blocks
Converted buildings with shared laterals, absent freeholders and unclear boundaries. We trace what serves what, so you know which repairs are yours and which are Wessex Water's.
Portfolio pricingOffices and retail
Lower volume, but a closed toilet block empties a floor. Usually annual maintenance plus reactive cover, with attendance arranged around opening hours.
Annual typicalSchools and care settings
Heavy, concentrated use in short windows, and no tolerance for facilities being out of action. Work scheduled around term dates and quiet periods, with DBS-checked attendance where required.
Termly or annualIndustrial and trade units
Interceptors, yard gullies and surface water drainage. Silt and debris rather than grease, but the same principle — scheduled clearance costs less than a flooded yard.
Site-specific
What a contract covers
Planned maintenance, in practice
Four things happen on every scheduled visit. None of them require you to be there.
1
Jet the known lines
Grease runs, shared laterals and gullies cleared back to full bore before they restrict, at a frequency set by how the site actually behaves.
Booked in advance2
Check the chambers
Every accessible chamber lifted and inspected. Standing water, silt levels and root growth all show a problem developing long before it stops the drain.
Every visit3
Camera where needed
If something looks wrong, we survey it rather than guess. Catching a displaced joint early is the difference between a liner and an excavation.
Included where required4
Report and record
A written record of what was done and what was found, building a history of the site. Useful for compliance, for landlords, and for arguing a case with an insurer.
Yours to keep
IMG-CM2
Commercial kitchen grease line
CCTV still or open chamber showing a heavy grease build-up on a commercial run. Makes the maintenance argument instantly to anyone running a kitchen.
1200 × 900px · 4:3 · WebP
alt="Grease build-up in a commercial kitchen drain in Bristol"
IMG-CM3
Working out of hours
Engineer on a commercial site early morning or after close — empty premises, van in shot. Shows work happens outside trading hours. No customer branding identifiable without permission.
1200 × 900px · 4:3 · WebP
alt="Flow Sure Drains engineer carrying out scheduled drain maintenance at a Bristol business out of hours"
Verified feedback
What Bristol customers say
Reviews left on Google by Bristol businesses, landlords and managing agents.
Second review slot. Three recent reviews sit here on desktop; on mobile they stack.
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Customer nameDate left
Third review slot. Long reviews are trimmed so the three cards stay level with each other.
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Commercial terms
Contracts and pricing
Reactive commercial call-outs start from £[XX]. Planned maintenance contracts start from £[YY] per visit, priced by site rather than by drain.
We price a contract after seeing the premises, not before. A single-kitchen café and a four-storey converted block need different frequencies and different work, and quoting either without looking is guesswork.
- Invoice or purchase order — no card payment on the day required
- No out-of-hours premium, so early mornings and after-close cost the same
- Attendance without a keyholder where access can be arranged
- Multi-site portfolios priced per property, with one point of contact
- Insurance certificate and RAMS provided on request
Contracts from
£[YY]
Per scheduled visit, single-site premises
Discuss a contract
Send us the address and we'll come and look before quoting. There's no charge for that visit.
Worth knowing
Your drainage responsibilities
Businesses and landlords carry obligations around drainage that most people only discover when something has already gone wrong.
Fats, oils and grease. Under the Water Industry Act 1991, it is an offence to discharge anything into a public sewer that is likely to damage it or interfere with the free flow of its contents — which includes fat and grease from commercial kitchens. Water companies can require premises to fit and maintain grease management equipment, and can take enforcement action where a business is causing repeated blockages downstream. Wessex Water publishes its own guidance for food businesses in this area.
Landlords and HMOs. Section 11 of the Landlord and Tenant Act 1985 places a repairing obligation on landlords covering, among other things, the installations for sanitation — basins, sinks, baths and sanitary conveniences — and the drains serving them. A blocked drain caused by disrepair is generally the landlord's responsibility rather than the tenant's, whatever the tenancy agreement says.
Shared and lateral drains. Where a run serves more than one property, it is usually a lateral drain and normally Wessex Water's responsibility rather than the building owner's. On converted blocks this is frequently misunderstood, and freeholders pay for repairs that were never theirs. Tracing the run settles it. More on drain responsibility →
General guidance, not legal advice. Obligations vary with tenure, tenancy terms, lease structure and the specific premises. Check your position with Wessex Water, your local authority or a solicitor. What we can do is establish the physical facts — what the pipe serves, where it goes and what condition it's in — which is usually the missing piece in these arguments.
Check specifics with Wessex Water or Bristol City Council.
Coverage
Commercial drainage by area
We cover commercial premises across Bristol, Bath and the surrounding towns, with most of our contract work in the central trading areas and the converted-property belt north and east of the city.
City centre & Harbourside
Clifton
Redland & Cotham
Bishopston
Bedminster
Fishponds
St George
Bradley Stoke
Yate
Bath
Keynsham
Portishead
IMG-CM4
Van outside a commercial premises
The branded van outside a recognisable Bristol business — a pub, café or trade unit. Signals to other businesses that you already work in their world. Get the owner's permission before publishing.
1600 × 900px · 16:9 · WebP
alt="Flow Sure Drains van outside a commercial premises in Bristol"
Straight answers
Common questions from businesses
How much does commercial drain maintenance cost?
Reactive call-outs start from £[XX], and planned contracts from £[YY] per visit, priced by site rather than by drain.
We quote a contract after seeing the premises. A single-kitchen café and a four-storey converted block need different frequencies and different work — quoting either without looking would be guesswork.
How often should a commercial kitchen drain be jetted?
A busy restaurant or takeaway typically needs jetting every three months, a café or pub kitchen every six, HMOs and converted flats every six to twelve, and offices or retail units annually.
These are starting points. The right interval depends on covers served, what goes down the sinks and how the run behaves, and we'd set it after the first visit rather than before.
Can you work outside our trading hours?
Yes, and there's no premium for it. Early mornings before opening and after close are when most of our commercial work happens — the whole point of planned maintenance is that it doesn't interrupt trade.
Do you need someone on site to let you in?
Not necessarily. Where access can be arranged — a gate code, a keyholder arrangement or external chambers only — we can attend and report without anyone being there. Many of our managing agent and landlord jobs work exactly that way.
Do you invoice, or is payment due on the day?
We invoice, and we work to purchase orders where your process requires one. No card payment on the day is needed for commercial work.
Are we legally required to manage grease?
Under the Water Industry Act 1991 it is an offence to discharge anything into a public sewer likely to damage it or interfere with the free flow of its contents, which covers fat and grease from commercial kitchens. Water companies can require premises to fit and maintain grease management equipment and can act where a business causes repeated blockages.
This is general guidance rather than legal advice — check your specific position with Wessex Water. In practice, a maintenance record showing regular jetting is the most useful thing to have if the question ever arises.
Who pays for a blocked drain in a rented property?
Section 11 of the Landlord and Tenant Act 1985 places a repairing obligation on landlords covering sanitation installations and the drains serving them. A blockage caused by disrepair is generally the landlord's responsibility rather than the tenant's.
Where the run serves several properties it may be a shared lateral drain and Wessex Water's responsibility instead — which is worth establishing before anyone pays for a repair.
Do you handle multiple sites?
Yes. Portfolios are priced per property with a single point of contact and one consolidated invoice. Send us the addresses and we'll come and look at each before quoting.
Send us the address and we'll come and look
No charge for the visit, and no obligation. We'd rather quote a contract after seeing the drains than guess at one over the phone — and if planned maintenance isn't worth it for your premises, we'll tell you that too.