The no-quote trick that turns a £150 septic tank call-out into a £6,000 bill
- No-quote hourly billing is the mechanism behind the worst UK drainage overcharge complaints: one well-known firm's £150-an-hour rate, with no fixed price agreed, ran a single call-out to £2,250 in one evening — with a further £3,700 estimated before the job was even finished.
- Checking a waste carrier's registration is not paperwork for its own sake. At Truro Crown Court, two men were convicted after one collected septic tank contents from parks, hotels and a car dealership and the other injected it into farmland without a permit — £241,124.50 in confiscation, fines and costs between them.
- Registering as a waste carrier costs £191.02 to start and £130.25 to renew — cheap enough that a firm without one has no excuse, and asking for the number costs the customer nothing.
- A fixed price agreed in writing before the tanker or engineer starts is the one step that both cases show would have stopped the loss — the bill and the dumping.
The Cornwall case reads like fraud because it is fraud, but the customers who fed it were not the target — they were the raw material. Neal Tremayne's business collected septic tank contents from exactly the kind of customers who trust a liveried truck without asking questions: holiday parks, hotels, a farm, a car dealership. Ocean BMW Ltd was handed false waste transfer notes — the paperwork that is supposed to prove where waste actually went.
None of that waste reached a licensed treatment site. Brian Matthews injected it into agricultural land at four locations across west Cornwall — Kehelland, Crosslanes, Sparnock and Mithian — without an environmental permit and without screening what was actually in each load. He told investigators he could only accept septic tank waste, but admitted anything could have been going into the tanks he was paid to take away.
Truro Crown Court, 14 April 2022: Matthews ordered to pay £136,674.50 in confiscation, an £8,000 fine and £10,000 in costs; Tremayne £80,000 in confiscation, £3,000 in fines and £3,450 in costs, plus a four-month prison sentence suspended for 12 months. £241,124.50 between them — and every customer on that collection round had a legal duty of care to check the carrier before handing over the waste, whether they knew it or not.
Nobody haggles over a septic tank quote in advance, because there usually isn’t one — you agree an hourly rate on the phone and find out what it added up to when the invoice lands. That gap between “£150 an hour, sounds fine” and the final number is where almost every real UK overcharge complaint lives, and one from December 2025 shows exactly how far it can run before anyone gets a total in writing.
The trick has a name, and it isn’t a fake tank size
A tenant who had just moved into a new flat in England called a well-known plumbing company from Pimlico after a toilet blocked solid. Their rate was steep — £150 an hour — but it was Christmas week and the job sounded simple, so the tenant agreed on the phone and let the engineer start.
It wasn’t simple. The first engineer called in a specialist. They worked past 6pm, when the hourly rate climbs again, for nearly eight hours between them. By the time they stopped for the night, the bill stood at £2,250 — and they estimated another £3,700 to finish removing what they suspected was a dislodged mop head from the pipe. Total: close to £6,000, for a single blocked toilet, with no fixed price agreed at any point before the meter started running.
They both spent almost 8 hours and past 6pm the hour rate goes up even more. The bill shot up to £2250 and they estimated with the extent of the job needed to remove what they suspect is a dislodged mop head in the piping would be an additional £3700 bringing the total to around £6000.
Inside_Librarian7895, r/LegalAdviceUK — "Moved into new flat £5000+ to repair toilet blockage"Nothing about that story is specific to toilets. The same firms that clear a blocked drain empty septic tanks and cesspits, and the same billing structure — an hourly rate quoted verbally, no cap agreed, the clock running while the crew works out the actual problem — is what turns a routine tank empty into the kind of invoice this site’s own price research has already documented: one treatment-plant owner’s itemised bill came to £1,407.75 excluding VAT with, in their own words, “nothing to benchmark against”. A number nobody agreed to in advance is not a quote. It’s an opening bid.
What a real quote looks like, so you can tell the difference
The full breakdown by tank size, and why Northern Ireland is the only nation with an official number at all, is in what septic tank emptying really costs; the cesspit figures and why they cost six times more a year are in what a cesspit actually is. What matters here is simpler: if a firm won’t put a total against those ranges before the tanker arrives, that refusal is the warning, not the small print.
| Confiscation | Fine | Costs | |
|---|---|---|---|
| Brian Matthews | £136,674.50 | £8,000 | £10,000 |
| Neal Tremayne | £80,000 | £3,000 | £3,450 |
Total: £241,124.50. Tremayne also received a 4-month prison sentence, suspended for 12 months. Source: Environment Agency, "Pair convicted for waste injection scheme".
When “we’ll take it away cheap” becomes an environmental crime
There is a second way the no-questions-asked approach costs you, and it doesn’t show up on your bill at all — it shows up in court, years later, against someone else’s name, after your waste has already gone somewhere it shouldn’t have.
At Truro Crown Court on 14 April 2022, two Cornwall men were convicted over exactly this. Neal Tremayne, a company director from Penryn, collected raw sewage, septic tank contents and other controlled waste from holiday and caravan parks, hotels, a farm, an abattoir and a car dealership — Ocean BMW Ltd among them, deceived with false waste transfer notes — and passed it on without proper documentation. Brian Matthews, of Twelvehead near Truro, then injected that liquid waste into agricultural land at four sites across west Cornwall, without an environmental permit and without screening what was actually in it. Matthews admitted in interview that he could only accept septic tank waste — but anything could have been going into the tanks he collected from.
Matthews: £136,674.50 in confiscation, an £8,000 fine, £10,000 in costs. Tremayne: £80,000 in confiscation, £3,000 in fines, £3,450 in costs, and a four-month prison sentence suspended for 12 months. £241,124.50 between them, for a scheme built on customers — holiday parks, a farm, a car dealership — who had no way of knowing their tank wasn't going to a licensed site.
None of those customers were prosecuted. But the case is the clearest illustration on record of why the rule exists: in England, the company that gets rid of your waste sludge must be a registered waste carrier, and that registration is a public record precisely so a customer can check it before, not after, the tanker leaves with a full load and no paperwork.
Before you book: two questions, both free
The Pimlico bill and the Cornwall prosecution have the same root cause — nobody had a number, or a name, in writing before the work started. Both are stopped by the same two questions, asked on the phone before anyone books a visit:
- What’s your waste carrier registration number? It costs the company £191.02 to register and £130.25 to renew — cheap and public enough that hesitation on this question is itself an answer.
- What’s the fixed price for this job, in writing, before anyone starts? Not a rate per hour, not a rate per metre — a total, for the job described, that doesn’t change once the crew is on site.
If a firm gives a straight answer to both before arriving, the risk in this article mostly doesn’t apply. If you’ve already been overcharged, Citizens Advice and your local Trading Standards handle consumer complaints on price. If you suspect your waste was dumped rather than treated — no paperwork, a price that seemed too good, a firm that went quiet afterwards — the Environment Agency’s 24-hour incident hotline is 0800 80 70 60.
Neal Tremayne, who collected the waste from customers, and Brian Matthews, who illegally injected it into farmland — not any of the holiday parks, hotels or the car dealership who handed it over.
What waste was involved?Raw sewage, septic tank contents and other controlled waste, collected from holiday and caravan parks, hotels, a farm, an abattoir and a car dealership.
What links a £6,000 toilet bill to a £241,000 fraud conviction is the same missing piece of paper: nobody wrote a number down before the work started. The tenant in Pimlico could have asked for a fixed price and didn't, because £150 an hour sounded reasonable for what he thought was a simple job. The holiday parks and the car dealership in Cornwall could have asked for a waste carrier's registration number and probably assumed a company that turned up in a liveried truck already had one. Both assumptions were reasonable. Both were wrong. The fix costs nothing and takes the length of a phone call — a total in writing, a registration number checked — and it is the one thing that separates a £200 septic tank empty from either kind of story on this page.
For what a straight job actually costs, see septic tank emptying prices and what a cesspit costs to run; if the quote in front of you is for a treatment plant rather than a tank, the itemised breakdown is in servicing a sewage treatment plant.
Frequently asked questions
How do septic tank and cesspit companies overcharge people in the UK?
The pattern in real complaints is not a fake tank size or a fake law — it is billing by the hour with no fixed price agreed first. One tenant in England called a well-known Pimlico plumbing firm for a blocked toilet at £150 an hour. Two engineers worked into the evening, when the rate rises further, and the bill reached £2,250 before they had even cleared the blockage — with a further £3,700 estimated to finish, for a total around £6,000. Commenters on the thread, including tradespeople, called it a scam once they saw the hours billed against the work done. The same open-ended-hourly-rate structure is exactly what septic and cesspit customers report when a call-out for one tank turns into a bill nobody can benchmark.
What happened in the £6,000 blocked-drain case?
A tenant who moved into a new flat in England called a well-known Pimlico plumbing company in December 2025 after a toilet blocked completely. At £150 an hour they accepted the price, expecting a quick job. The engineer needed a second specialist, they worked almost eight hours past 6pm — when the rate goes up further — and the bill reached £2,250, with another £3,700 estimated to clear what they suspected was a mop head lodged in the pipe: about £6,000 total. No fixed price was agreed before work began.
Is it actually illegal to dump septic tank waste, or just against the rules?
It is a criminal offence, and it has been prosecuted. At Truro Crown Court on 14 April 2022, Neal Tremayne, who collected raw sewage, septic tank contents and other controlled waste from holiday and caravan parks, hotels, a farm, an abattoir and a car dealership, was convicted alongside Brian Matthews, who injected that liquid waste into agricultural land at four sites in west Cornwall without an environmental permit. Matthews was ordered to pay £136,674.50 in confiscation, an £8,000 fine and £10,000 in costs. Tremayne was ordered to pay £80,000 in confiscation, £3,000 in fines and £3,450 in costs, with a four-month prison sentence suspended for 12 months. Matthews admitted in interview that he could only accept septic tank waste, but anything could have been going into the tanks he was paid to take.
How much does it cost a company to register as a waste carrier — and why does that matter to me?
Environment Agency registration costs £191.02 to start and £130.25 to renew. That is cheap enough, and public enough, that a firm turning up without a registration number has no real excuse. In England, the rule is direct: the company that gets rid of your waste sludge must be a registered waste carrier. Asking for that number before booking costs you nothing and takes the same minute as asking the price.
What should I do before I book a septic tank or cesspit company?
Three checks, all free: ask for the waste carrier's registration number before the visit, not after; get a fixed price for the specific job in writing before anyone starts work, not an open hourly rate; and ask, plainly, where the waste is actually taken. If you are overcharged, Citizens Advice and Trading Standards handle consumer complaints. If you suspect your waste was dumped rather than treated, the Environment Agency runs a 24-hour incident hotline on 0800 80 70 60.
Researcher & editor, off-mains drainage
Writes independent guides on septic tanks, cesspits and sewage treatment plants for homes off the mains. Cross-checks the general binding rules and the Environment Agency, SEPA, NRW and NIEA against real prices, British Standards and what owners actually report on the forums.