Septic Tank, Grease Trap & Interceptor Emptying City of London EC1–EC4
Licensed vacuum tankers across the Square Mile — Smithfield Market traders, Leadenhall Market restaurants, Bishopsgate and Liverpool Street hotel kitchens, Fleet Street and Old Bailey catering, sewage-ejector pits beneath 22 Bishopsgate, the Cheesegrater, the Walkie-Talkie, the Gherkin, Tower 42 and Lloyd's of London. Fixed quotes from £180, same-day slots on most weekdays.
Typical EC response: 30–50 minutes daytime from our Acton depot, 50–80 minutes overnight. Smithfield 04:00–11:00 trader-window access. Section 34 waste transfer note on every job.
0207 046 1363
The Square Mile is on the Bazalgette northern interceptor (1860s) and has been on the public foul sewer for centuries — there are no buried septic tanks anywhere inside EC1–EC4 in commercial use. What the search usually means here is one of three things we tanker on the same fleet: a sealed-tank interceptor at a basement restaurant or hotel kitchen, a commercial grease trap at Smithfield Market or Leadenhall Market, or a sewage-ejector pit beneath one of the EC2 / EC3 towers — 22 Bishopsgate, the Cheesegrater, the Walkie-Talkie, the Gherkin, Tower 42 and Lloyd's. Grease traps £180–£260, sealed interceptors £240–£420, ejector pits £320–£480 — fixed on the phone before dispatch. Section 34 waste transfer note included.
What we do in the Square Mile
The City of London is the financial district at the historic core of the capital — one square mile bounded by Smithfield and the Barbican fringe in the north, Aldgate and Tower Hill in the east, the Thames in the south and Holborn, Temple and Blackfriars in the west. It is its own local authority (the City of London Corporation, not a London Borough) and has been on the public foul sewer for centuries, with Joseph Bazalgette's northern outfall interceptor carrying the bulk of the foul flow under EC1–EC4 since the late 1860s. Traditional buried septic tanks do not exist here in commercial use. The work we do is overwhelmingly trade-effluent sealed interceptors, grease traps and basement sewage-ejector pits — and the search query "septic tank emptying City of London" usually means one of those three.
Our tanker crews handle 35–60 jobs per month across EC1–EC4. The most common patterns: weekly and quarterly grease-trap rotations for the Smithfield Market trader units around Charterhouse Street, West Smithfield and Long Lane; rolling 6–12 week interceptor contracts for the Bishopsgate, Liverpool Street and Aldgate hotel kitchens (Andaz Liverpool Street, Pan Pacific London, Montcalm Royal London House, Apex City of London, Z Hotels Liverpool Street, Leonardo Royal St Paul's, Threadneedles, The Ned, Vintry & Mercer); livery-hall catering visits at Goldsmiths' Hall, Drapers' Hall, Mercers' Hall, the Inner Temple Hall and the Apothecaries' Hall; and quarterly sewage-ejector pit pump-outs at the EC2 / EC3 basement plant rooms beneath 22 Bishopsgate, 100 Bishopsgate, the Leadenhall Building (the Cheesegrater), 20 Fenchurch Street (the Walkie-Talkie), 30 St Mary Axe (the Gherkin), Tower 42, the Heron / Salesforce Tower and Lloyd's of London. We also run 24/7 emergency overflow response — a sewage-ejector failure beneath a 40-storey EC2 tower is the kind of call we get within 30 minutes of the alarm tripping.
We are a fully licensed waste carrier (CBDU upper-tier registration with the Environment Agency) and all trade effluent goes to a permitted Thames Water disposal site — the Tideway Tunnel route to Crossness or Beckton, or to a specialist grease-recovery plant for Smithfield and Leadenhall food-waste. You receive a Section 34 duty-of-care waste transfer note for every job; keep it for at least two years. The City of London Corporation's Port Health and Environmental Services team, Thames Water trade-effluent inspectors, the Food Standards Agency, and any conveyancing solicitor handling an EC commercial property transfer will routinely ask for the most recent one. Multi-unit Smithfield, Leadenhall and Bishopsgate customers get a monthly visit log that doubles as the audit trail for hygiene inspections.
Postcodes and streets we cover across the Square Mile
We attend every street in the EC1 / EC2 / EC3 / EC4 zone daily. Our Acton depot is 7 miles west of the City via the A40 and Holborn Viaduct — typical daytime response 30–50 minutes outside peak hours. Out-of-hours we route via the Embankment, which is consistently quicker after 19:00.
| Postcode | Streets covered |
|---|---|
| EC1 (Smithfield / Barbican / Holborn Viaduct) | Smithfield Market, Charterhouse Street, Long Lane, West Smithfield, Cloth Fair, Carthusian Street, Aldersgate Street, Barbican estate, Beech Street, Fann Street, Golden Lane, Bartholomew Close, Little Britain |
| EC2 (Moorgate / Liverpool Street / Bishopsgate) | Bishopsgate, Threadneedle Street, Old Broad Street, London Wall, Moorgate, Finsbury Circus, Liverpool Street station, Broadgate, Sun Street, Wormwood Street, St Mary Axe (the Gherkin), Leadenhall Street, 22 Bishopsgate service yard, 100 Bishopsgate |
| EC3 (Aldgate / Fenchurch / Tower Hill) | Aldgate High Street, Fenchurch Street, Eastcheap, Lower Thames Street, Tower Hill, Crutched Friars, Mark Lane, Mincing Lane, Cooper's Row, 20 Fenchurch Street (Walkie-Talkie), Leadenhall Building (Cheesegrater) service yard, Lloyd's of London |
| EC4 (St Paul's / Fleet Street / Cannon Street / Blackfriars) | Fleet Street, Ludgate Hill, Old Bailey, Paternoster Square, St Paul's Churchyard, Cannon Street, Queen Victoria Street, Upper Thames Street, New Bridge Street, Blackfriars, Carter Lane, Bouverie Street, Tudor Street, the Inner Temple courts |
- Postcodes served
- EC1A / EC1Y (Smithfield and the Barbican fringe), EC2M / EC2N / EC2R / EC2V / EC2Y (Liverpool Street, Bishopsgate, Bank, Guildhall, Barbican south), EC3A / EC3M / EC3N / EC3R / EC3V (Aldgate, Fenchurch, Tower Hill, Cornhill), EC4A / EC4M / EC4N / EC4R / EC4V / EC4Y (Fleet Street, St Paul's, Cannon Street, Blackfriars, Inner Temple)
- Council
- City of London Corporation — the City has its own local authority, separate from every London Borough. Environmental health, food-business inspections and licensing all sit with the Port Health and Environmental Services team at Guildhall. Trade-effluent consents are issued by Thames Water, with discharge routed via the Thames Tideway Tunnel to Crossness or Beckton.
- Typical response
- 30–50 minutes daytime from our Acton depot via the A40 / Holborn Viaduct or the Embankment · 50–80 minutes overnight
- Nearest landmarks
- St Paul's Cathedral (Christopher Wren, 1675–1710); the Bank of England (Threadneedle Street, 1734); the Guildhall (the City Corporation's seat since the 12th century); Smithfield Market (London's principal wholesale meat market, on the same site since the 12th century); Leadenhall Market (Horace Jones, 1881); the Old Bailey; Lloyd's of London (Richard Rogers, 1986); the Gherkin (30 St Mary Axe); the Cheesegrater (122 Leadenhall, the Leadenhall Building); the Walkie-Talkie (20 Fenchurch Street); 22 Bishopsgate; Mansion House; Liverpool Street and Cannon Street stations
- Property mix
- EC1: Smithfield Market traders, Cloth Fair restaurant cellars, Barbican estate plant rooms, livery-hall kitchens (Charterhouse). EC2: Bishopsgate tower clusters (22 Bishopsgate, 100 Bishopsgate, Tower 42, Heron / Salesforce Tower), Liverpool Street hotels (Andaz, Pan Pacific, Montcalm Royal London House), Broadgate office complex, City Point. EC3: Lloyd's of London, the Cheesegrater service yard, the Gherkin, the Walkie-Talkie, Aldgate hotels (Apex, Z, Leonardo Royal). EC4: St Paul's-area hotels (Threadneedles, The Ned, Vintry & Mercer, Leonardo Royal St Paul's), Fleet Street legal-chambers kitchens, the Inner Temple Hall catering, Old Bailey, Blackfriars riverside restaurants and the Tudor Street livery-hall fringe.
- Why a 'septic tank' search in the Square Mile matters
- The City has been on the Bazalgette interceptor since the 1860s and on the public foul sewer for far longer — there are no buried septic tanks anywhere within the Square Mile in commercial use. What the search overwhelmingly means here is one of three things: a sealed-tank interceptor at a basement restaurant, hotel kitchen or livery-hall catering (Threadneedle Street, Old Bailey, Cornhill, Fleet Street); a grease trap or grease separator at a Smithfield Market trader unit, a Leadenhall Market restaurant, or a Bishopsgate hotel kitchen; or a sewage-ejector pit at a basement plant room beneath one of the EC2/EC3 towers — 22 Bishopsgate, 100 Bishopsgate, the Cheesegrater, the Walkie-Talkie, the Gherkin, Tower 42, the Heron / Salesforce Tower and Lloyd's of London all run ejector pits because the basement floor is below the public-sewer invert level. We tanker all three on the same fleet.
When to call us across the Square Mile
The six situations below cover roughly 95% of the calls we take from EC1, EC2, EC3 and EC4. If yours is not listed, phone anyway — most of the time we can advise on the right service over the call, including whether you need a tanker or a blocked-drain response.
Smithfield Market grease trap due
Charterhouse Street, West Smithfield and Long Lane food units run on a 4–12 week rotation under the Thames Water trade-effluent consent. We hold rolling contracts for many of them and slot the visit into the 04:00–11:00 trader-only window.
Bishopsgate / Liverpool Street hotel interceptor schedule
Andaz Liverpool Street, Pan Pacific, Montcalm Royal London House, Apex City of London and Z Hotels Liverpool Street all run sealed-tank interceptors that need quarterly emptying. Service-yard access via Crosby Square, Bishopsgate Churchyard or the Broadgate delivery road.
Sewage-ejector pit failure beneath an EC2 / EC3 tower
22 Bishopsgate, 100 Bishopsgate, the Cheesegrater, the Walkie-Talkie, the Gherkin, Tower 42 and Lloyd's all run ejector pits because the basement floor is below the public-sewer invert. A pump trip floods the wet well within hours. 24/7 emergency response — call immediately.
Livery-hall catering rotation
High-throughput catering at Goldsmiths' Hall, Drapers' Hall, Mercers' Hall, the Inner Temple Hall, the Apothecaries' Hall and Mansion House operates on a 4–8 week schedule. We coordinate with the Hall Beadle / Facilities team for after-hours visits to minimise event downtime.
Sewage smell in an EC basement plant room
A faint H2S smell near an ejector pit cover usually means the wet well sludge has crossed the sensor level. Call before the pump trips. Also worth checking if there is rising-main hammer noise from the discharge pipe.
Restaurant cellar slow-draining at Leadenhall, Cornhill or Fleet Street
If sinks and floor gullies in a basement kitchen are all slow at once, the issue is downstream of the trap — usually the interceptor or the rising main, not a single blockage. Call before the next service triggers a backflow into the cellar.
How the visit works
Most City of London grease-trap visits take 25 to 45 minutes from arrival to leaving site. Sealed-tank interceptors take 45–75 minutes. Sewage-ejector wet-well pump-outs take 60–90 minutes including the post-pump-check. The six steps below are what every routine visit looks like.
Call & fixed quote
You phone, describe the property (Smithfield stall, Leadenhall restaurant, Bishopsgate tower, livery hall) and access (which service yard, which loading window). We give a fixed price on the call — no central-London access surcharge inside the EC zone.
Same-day dispatch
Routine slots usually within 6 hours during weekdays. Sewage-ejector pit failures and basement overflow emergencies dispatched immediately. Smithfield trader-window jobs scheduled into the 04:00–11:00 access slot.
On-site survey
The driver checks the trap, interceptor or ejector pit lid, depth and grease/sludge level before the pump starts. Photographs taken for the rolling-contract audit log.
Vacuum extraction
Full empty of the working volume. Typically 25–45 minutes on site for a grease trap; 45–75 minutes for a sealed interceptor; 60–90 minutes for a sewage-ejector wet well plus pump check.
Licensed disposal
Trade effluent and grease taken to a permitted Thames Water disposal site — typically Crossness or Beckton via the Thames Tideway Tunnel, or to a specialist grease-recovery plant for the Smithfield and Leadenhall food waste.
Section 34 paperwork
You receive the duty-of-care waste transfer note by email the same day. Multi-site customers get a monthly visit log for the audit file.
City of London pricing — fixed before dispatch
All quotes are fixed on the phone before we dispatch a tanker. No central-London access surcharge inside the EC zone — and we know the access SOPs for Smithfield Market trader windows, the Leadenhall Market service yards, the EC2 / EC3 tower loading bays (22 Bishopsgate, the Cheesegrater, the Walkie-Talkie, the Gherkin, Tower 42, Lloyd's) and the livery-hall back-of-house entrances. No out-of-hours surcharge for genuine sewage-overflow emergencies. Prices include the Section 34 waste transfer note and licensed disposal via Thames Water Tideway or a permitted grease-recovery plant.
| Service | 2026 cost |
|---|---|
| Commercial grease trap (50–200 L) | £180–£260 |
| Sealed-tank interceptor (1,500–3,000 L) | £240–£380 |
| Sewage-ejector pit pump-out | £320–£480 |
| Livery-hall catering kitchen visit | from £200/visit |
| Out-of-hours emergency add-on | +£80–£120 |
| Recurring contract (quarterly grease) | from £160/visit |
| Old Bailey / Mansion House rotation | from £180/visit |
FAQ — septic, grease-trap and interceptor work in the City of London
Are there really septic tanks in the City of London?+
How much does interceptor or grease-trap emptying cost in EC1–EC4?+
How often do City of London restaurants and hotel kitchens need grease-trap emptying?+
Can the tanker access Smithfield Market and the EC2 / EC3 tower service yards?+
Do you provide a duty-of-care waste transfer note for City of London commercial sites?+
Other services in the City of London and nearby
Septic, grease-trap and interceptor work across the City of London
24/7 lines. Same-day EC slots. Smithfield trader-window access. Fixed quote before dispatch.