Question 1

How much does septic tank emptying in Heathrow cost?

Accepted Answer

A standard domestic septic tank empty in the Heathrow area (TW6 and UB7) starts at £180 for tanks up to 2,500 litres on kerbside access. Larger 2,500–4,500L two- and three-chamber tanks are £240–£320. Sealed cesspit emptying starts at £220 because the entire tank volume has to be tankered away rather than just the sludge layer. Same-day priority slots carry a £60 surcharge, and hose runs over 25 metres or tank depth over 3 metres add 10–25%. Prices include VAT and a waste transfer note issued on the day.

Question 2

Do you cover all of TW6, UB7 and the surrounding villages?

Accepted Answer

Yes. The Heathrow round covers TW6 across the airport perimeter, UB7 across West Drayton, Yiewsley, Harmondsworth, Sipson, Harlington and Longford, plus the edge of TW19 around Stanwell Moor. The tanker is based on the M25/M4 corridor so attendance times across these postcodes are usually within 90 minutes on a same-day call and same-day on a 24/7 emergency.

Question 3

Why do so many Heathrow-area properties have septic tanks or cesspits?

Accepted Answer

The villages immediately around Heathrow — Sipson, Harmondsworth, Longford and the older parts of Harlington — sit inside the airport safeguarding zone. Adoption onto the Thames Water foul sewer network was never carried through for many of these streets, so individual properties drain to private septic tanks (with soakaway) or sealed cesspits (no soakaway). Demand for tanker services in the area is therefore much higher per household than typical West London.

Question 4

Are you EA licensed to remove septic and cesspit waste?

Accepted Answer

Yes. The operator is a registered Upper-tier waste carrier with the Environment Agency and holds the relevant T15 exemption for the temporary storage and transfer of sewage sludge. Every load is documented on a Section 34 Duty of Care waste transfer note, signed by the producer (the property owner or duty holder) and the carrier, and is taken to a licensed transfer station with reception consent. A copy of the EA carrier licence and the waste transfer note is left on site or emailed within 24 hours.

Question 5

How often should a septic tank be emptied?

Accepted Answer

The General Binding Rules for small sewage discharges in England (published by the Environment Agency under the Environmental Permitting Regulations 2016) require septic tanks to be emptied at least once a year, or as recommended by the manufacturer. In practice, a properly sized two-chamber tank serving a family of four is emptied every 12 months. A cesspit, because it has no soakaway, fills in proportion to water use and is usually on a 4–8 week cycle depending on household size.

Question 6

Can you attend same-day in Heathrow?

Accepted Answer

Yes. The Heathrow round operates 24/7 with same-day attendance booked from the call. A £60 priority surcharge applies for slots booked under 4 hours from the call or outside 08:00–18:00. The tanker holds 4,500 litres so single-load emptying covers the vast majority of domestic tanks without a second journey.

Question 7

Do you handle commercial grease traps for airport hotels and restaurants?

Accepted Answer

Yes. Hotels along Bath Road, restaurants and quick-service kitchens in the airport area, and on-site catering at logistics parks are all served on monthly or six-weekly PPM rounds. Grease trap emptying starts at £180 per visit for traps up to 200 litres and includes a jet-rinse, lid reseal and a waste transfer note in the format required for ISO 14001 and FOG-management audits.

Question 8

What happens if my septic tank soakaway has failed?

Accepted Answer

A failed soakaway shows up as standing water above the leach field, gurgling in the second chamber after an empty, or foul liquid surfacing in the garden. The empty resets the symptom but doesn’t fix the cause. A combined visit with the tanker plus a jet-vac and short CCTV inspection (typically with our root cutting & relining team) identifies whether the soakaway needs replacing, the dip tubes need rebedding or whether the property qualifies for a small package treatment plant upgrade under the 2020 General Binding Rules.

Question 9

What paperwork do I get?

Accepted Answer

Every visit is documented with: an Environment Agency Section 34 Duty of Care waste transfer note (paper and email), the EA waste carrier licence number recorded on the note, the EWC code for the waste stream (typically 20 03 04 for septic tank sludges), the destination transfer station, and a stamped VAT invoice. Commercial sites under PPC or ISO 14001 audit get the documentation in the audit-ready format the duty holder needs to file.

Question 10

Can you empty a tank if access is tight?

Accepted Answer

In most cases yes. The tanker carries 25 metres of suction hose as standard and an additional 25-metre extension for long runs from the kerb. For very tight rural drives in Harmondsworth and Longford, or where the tank is behind an outbuilding, we operate a smaller 2,000L mini-tanker that can reach where a 6-wheeler cannot. Confirm rough hose-run distance and ground type on the call so the right vehicle is dispatched.

Question 11

Do you serve Heathrow airside or only landside properties?

Accepted Answer

Airside access at LHR requires HAL airside vehicle permitting that takes weeks to arrange and is restricted to contracted facilities providers on site. Our service covers all landside addresses across TW6 and UB7 — terminals are excluded but every hotel, office, warehouse and private home outside the airside perimeter is served on the standard round.

Question 12

Can you do regular PPM rounds for portfolios?

Accepted Answer

Yes. Cesspits, grease traps and forecourt interceptors are scheduled on monthly, six-weekly, quarterly or annual cycles depending on use. PPM customers get a fixed visit slot, automatic anniversary booking, a single consolidated invoice across the portfolio and a digital evidence pack (waste transfer notes per visit per address) downloadable for audit. See the PPM contracts page or the parent tanker services hub for the full schedule.

Service / scenario	What’s covered	Typical cost
Septic tank — domestic (up to 2,500L)	Standard kerbside access, single-chamber or two-chamber concrete tank, hose run up to 25m.	from £180
Septic tank — large (2,500–4,500L)	Two- or three-chamber tank, full empty, sludge inspection, dip-tube check.	£240–£320
Cesspit emptying (sealed holding tank)	Single-load 4,500L tanker, full discharge to licensed transfer station, paperwork issued.	from £220
Grease trap — commercial (50–200L)	FOG removal from under-sink or external interceptor, jet-rinse, lid reseal, waste transfer note.	from £180
Jet-vac drainage (combined unit)	High-pressure jet rinse + vacuum recovery on a single visit, ideal for blocked soakaways or silted runs.	from £180
Gully sucking (yard / forecourt)	Tanker empties gullies, channel drains and small surface-water pits — paperwork on the day.	from £140
Same-day surcharge	Out-of-hours and same-day priority slot booked under 4 hours from the call.	+£60
Depth / access multiplier	Hose run over 25m, hard-standing access more than 30m from kerb, or tank depth over 3m.	+10–25%

Septic Tank Emptying Heathrow

Heathrow tanker services — local context

Our services in Heathrow