Septic Tank Emptying
Regular emptying of domestic and commercial septic tanks across Cornwall. Whoever does it must be a registered waste carrier. Most standard tanks take under an hour.
From £150Full tank in Helston? An independent guide to septic tank emptying in Helston and across TR12 and TR13: what it involves, what it typically costs, and how to check a firm is a registered waste carrier. We’re not a septic tank company.
Helston (TR12, TR13) is the gateway to the Lizard peninsula, where mains drainage thins out fast and septic tanks take over. Properties in Mullion, the Lizard, Coverack, Porthleven, St Keverne and Wendron include the remote clifftop homes and old farmsteads that make the Lizard such a distinctive corner of Cornwall.
The Lizard has more genuinely off-grid properties than almost anywhere else in the county — cottages on cliff edges, smallholdings down half-mile tracks, holiday lets in coves you can't drive a tanker into. Ask any firm whether your address needs the small-tanker option or can take a full-sized vehicle, so there are no surprises on arrival.
Helston is the gateway to the Lizard, and much of the peninsula is well off the mains network — Mullion, St Keverne, Coverack, Cury and Gunwalloe among them. This is some of the most rural drainage territory in Cornwall, and tanks here do a lot of work.
The Lizard is exposed, flat-topped and a long way from anywhere. Distance is the practical constraint: operators covering TR12 and TR13 are travelling further per job than almost anywhere else in the county, so scheduling ahead matters more than it does inland.
Porthleven and the coastal villages carry the usual holiday-let loading through summer, and the area around RNAS Culdrose adds a band of housing with its own occupancy patterns. If your property's use changes seasonally, say so — it affects how often you'll actually need emptying.
We’re an independent guide, not a septic tank company. These are the honest options; pick whichever suits you.
Anyone who takes septic tank waste away must be a registered waste carrier. Whichever local firm you find, look it up on the Environment Agency’s public register before you book.
Ask for the firm’s waste carrier registration and check it, get a written price that says what’s included (disposal, hose length, access), and ask for a waste transfer note once the job is done.
Leave your details and we’ll try to introduce you to one local septic tank firm covering your postcode. We’re still looking for local firms to work with, so we may not have one for your area yet. We’ll tell you who before sharing anything, and septic tank firms may pay us for introductions.
Whatever’s going on below ground at your Helston property, here’s what each job involves and what it typically costs.
Regular emptying of domestic and commercial septic tanks across Cornwall. Whoever does it must be a registered waste carrier. Most standard tanks take under an hour.
From £150Full cesspit pump-outs for sealed systems. Cesspits need emptying far more often than septic tanks, so the running cost adds up.
From £120New septic tank or treatment plant installation, fully compliant with the General Binding Rules 2020. Survey, install, commission: what a full job includes.
From £3,000Tank backing up, soakaway saturated, weird smells in the garden? Diagnosis via CCTV, then repair or replace: how to decide.
From £150 (survey)Blocked or slow-running drains cleared fast using high-pressure jetting. From kitchen sinks to main sewer lines.
From £80Camera inspections to diagnose blockages, root ingress, collapsed pipes, and drainage issues before they become expensive problems. A written report should be part of it.
From £150Prices depend on tank size, access, and your exact location. These are guides, not quotes: always get a written price before work starts.
Standard domestic tank (up to 2,700L). Price varies by access and distance.
Sealed cesspit pump-out. Larger cesspits (10,000L+) quoted individually.
High-pressure jetting. Most domestic blockages cleared in under an hour.
Out-of-hours and weekend work, where a firm has capacity. Ask for the price before they set off.
Not in Helston? Pick your nearest town guide below.
Old system failing, or building off the mains? Our installation guide covers septic tanks and treatment plants — surveys, groundwork, General Binding Rules compliance and typical costs.
Septic tank installation in Cornwall →Peak-season occupancy fills tanks fast — and a backed-up tank mid-stay means refunds. Our holiday-let guide covers scheduling emptying around changeover days and planning for peak season.
Septic tank care for holiday lets →Everything you need to know about septic tank emptying in Helston and the surrounding area.
Septic tank emptying in Helston typically costs between £150 and £300, depending on tank size, access, and how far the specialist needs to travel. Cesspits usually cost more due to larger volumes. Emergency or out-of-hours callouts may incur an additional charge — always get a written quote up front.
Most domestic septic tanks in the Helston area should be emptied every 6 to 12 months. A family of four with a 2,700-litre tank typically needs annual emptying. Smaller tanks, larger households, or heavy holiday-let use can mean more frequent service. Slow drains or odours usually mean it's overdue.
Some local firms can empty a tank the same day when their schedule allows, but it isn’t guaranteed, especially in peak season. Ring two or three firms that work around Helston and say how urgent it is; calling early in the day helps.
You don't need a permit to have your tank emptied, but the waste must be disposed of by a licensed waste carrier registered with the Environment Agency. You can check any firm on the Environment Agency’s public register of waste carriers. Under the General Binding Rules (2020), your tank must also discharge to a drainage field — not directly to a watercourse.
This guide covers Helston and the surrounding villages and hamlets across TR12 and TR13, including Mullion, The Lizard, Coverack, Porthleven, Wendron, St Keverne and Cury. We’re an independent guide, so we don’t send anyone out ourselves; look for a firm that works your patch and check it on the waste carrier register, or ask us for an introduction.
All waste is transported by licensed tanker to an approved treatment facility or sewage works. Whoever empties your tank must be a registered waste carrier with the Environment Agency, and you can ask for a waste transfer note as proof of legal disposal.
Not all of them — and knowing which is which is half the job. Some Lizard coves and clifftop tracks need the small-tanker option or a long hose run. Give any firm your exact address and describe the access, and check their vehicle can genuinely reach the tank, not just the postcode.
Usually — Mullion, St Keverne, Coverack, Cury, Gunwalloe and the villages between them, but ask when you ring. It's a long way out, so notice helps; operators here are travelling further per job than almost anywhere in the county.
It can. The older parts near the harbour are tight, and through the season there's a lot of foot traffic, so a hose run from the nearest accessible point is often the sensible approach rather than trying to bring a vehicle down.