"Cheap" tank quotes have a habit of hiding the expensive bit. When a low headline figure lands in your inbox, it's usually the supply-and-fit price only — and it quietly ignores £500 or more in disposal fees for removing, decommissioning and recycling the old tank you're replacing.
We see this constantly across Wiltshire. A homeowner gets a low headline figure from an online calculator or a national fitter, books the job, then gets hit with an "extra" charge once the old tank is sitting on their drive with nowhere to go.
| Question | Short Answer |
|---|---|
| Why does a cheap tank quote often ignore £500 in hidden disposal fees? | Most "from" prices only cover the new tank and fitting, not draining, decommissioning, removal and recycling the old one. |
| What does standalone oil tank removal cost? | Typically £250 to £600 on its own, more if the tank is contaminated or hard to access. |
| Is disposal included if I replace my tank? | With a genuine oil tank replacement from a local specialist, removal is usually rolled into the fixed price. |
| Can I just drag the old tank to the tip myself? | No. Residual oil and sludge make it hazardous waste, and incorrect disposal breaches environmental law. |
| Does a new base add to the hidden cost? | Yes, a compliant concrete base runs £300 to £800 and is frequently left off "cheap" quotes. |
| How do I avoid the hidden fee trap? | Ask for a free site survey and a fixed, all-in quote before booking, not an online "from" figure. |
| Where can I read more on bunded vs single-skin cost differences? | See our guide on what a bunded oil tank actually is. |
Most online quote tools are built to show you the smallest possible number. That number usually covers the new tank, the pipework, and a couple of hours of fitting time.
What it doesn't cover is what happens to the old tank sitting on your patio, still half full of sludge and residual oil. That's where the "cheap" tank quote falls apart, and why so many homeowners end up paying £500 or more they didn't budget for.
An old oil tank can't just be dragged out and skipped. Residual oil and sludge make it hazardous waste, and incorrect disposal can pollute the ground and breach environmental law, which is exactly why oil tank removal is priced, licensed and regulated separately from a straightforward fit.
A properly costed job should be a single, fixed figure that covers the whole process from start to finish, not a low headline number with add-ons waiting behind it.
If your oil tank is leaking, weeping at the seams, badly corroded or simply past its working life, it needs replacing before it fails completely, a split tank can contaminate your garden and land you with a clean-up bill running into thousands.
Guide prices help you spot a quote that's been stripped of the disposal element before you book anyone.
| Item | Typical Cost (2026) |
|---|---|
| Single-skin tank, supplied & fitted | £1,200 – £2,200 |
| Bunded tank, supplied & fitted | £1,800 – £3,500 |
| New concrete base | £300 – £800 |
| Standalone tank removal | £250 – £600 |
| Larger / commercial tanks | From £3,500+ |
Add a standalone removal fee to a new base and you're already looking at £550 to £1,400 of "extras" that a cheap headline price simply never mentioned. Rather than quote a misleading "from" price, we offer free site surveys to provide a fixed, honest quote with no hidden extras, so the number you see is the number you pay.
Here's where the £500 figure comes from in practice, based on what we see quoted separately once a homeowner has already committed to a fitter.
A tank within a tank, an inner tank holds the oil and an outer skin (the bund) holds at least 110% of the contents, so a leak from the inner tank is safely contained.
Bunded tanks are required where a leak could reach a watercourse, drain, borehole or hard surface. Across Wiltshire, that covers a lot of ground, particularly properties near chalk streams and permeable soils, where a single-skin tank simply isn't a legal option.
A cheap quote built around a single-skin tank might look attractive, right up until a survey confirms bunding was always required, and you're paying for a second visit, a different tank, and the disposal of the first one that was never fitted. Our guide on UK oil tank regulations covers exactly when bunding is legally required.
Some homeowners try to save money by removing an old tank themselves and just paying someone to fit the new one. This rarely goes well.
⚠️ Residual oil, sludge and vapour make an "empty" tank far from safe to handle, and improper disposal can trigger enforcement action and land you with a pollution clean-up bill running into the thousands. A tank that's quietly corroding or weeping can become a costly pollution incident before you ever notice, which is why regular checks matter as much as the eventual replacement.
If you're weighing up servicing an ageing tank versus replacing it outright, our oil tank servicing team can tell you honestly which side of that line you're on.
We built our pricing around one rule: no hidden disposal fees, ever. That means the fixed price you're quoted after a free survey already includes draining, decommissioning, removal and recycling of the old tank.
Honest, practical advice on choosing, installing, maintaining and replacing heating oil tanks, written by the team who do the work, sits behind every quote we give. You can browse our full set of oil tank guides for more on sizing, bunding and regulations before you commit to any fitter's number.
Tank size affects disposal cost too, since a larger tank means more residual oil and sludge to drain safely, and often a bigger base to remove if it's being replaced.
Domestic tanks typically range from 1,000 to 2,500 litres. Going bigger reduces delivery frequency but increases both the install cost and, eventually, the removal cost, so it's worth reading our oil tank size guide before assuming bigger is automatically better value.
When a tank starts to corrode, leak or simply reaches the end of its life, you want a genuinely local team who can be out quickly, not a national booking line reading a script and adding fees after the fact.
We're Wiltshire-based engineers who know the area's rural and listed properties, and we cover Salisbury, Devizes, Chippenham, Swindon, Marlborough, Wilton and the surrounding villages. Our team are generally busy out on installs, drop us a message and someone will come back to you as soon as possible, with same-week availability for leaks and pollution risks.
A "cheap" tank quote often ignores £500 in hidden disposal fees because it's built to win the booking, not to reflect the real cost of the job. Ask any fitter directly whether removal, decommissioning and recycling of your old tank are included in the fixed price, and if the answer is vague, treat that as your answer.
We'd rather give you one honest number after a free survey than a low one followed by a surprise invoice. If you'd like a fixed, all-in quote for your oil tank replacement that already accounts for disposal, get in touch and we'll come and take a look.
Residual oil and sludge in an old tank count as hazardous waste, so removal must go through licensed drainage, decommissioning and recycling channels rather than a standard skip. That licensed handling, not the tank itself, is where most of the hidden £500 sits.
With a genuine, fixed-price replacement from a local specialist, yes, removal of the old tank is typically rolled into the quote. With a low "from" price advertised online, it's often not, which is exactly why the final invoice can jump by £500 or more.
Standalone removal without a replacement typically runs £250 to £600, more if the tank has leaked and contaminated the surrounding soil. That figure is rarely mentioned in headline "cheap tank" advertising.
No. An old oil tank can't just be dragged out and skipped, residual oil makes it hazardous waste, and incorrect disposal can pollute the ground and breach environmental law.
Single-skin tanks cost less upfront, but bunded tanks are required wherever a leak could reach a watercourse, drain, borehole or hard surface, which covers much of rural Wiltshire. Choosing single-skin when bunding is legally required just delays the real cost rather than avoiding it.
A fair quote should cover the survey, the new tank, the base, fitting, certification, and full removal and recycling of the old tank as one fixed figure. If disposal isn't mentioned explicitly, ask before you book, since that's usually where the hidden £500 appears.
Some companies quote the tank and fitting only, others quote the whole job including disposal, and the two numbers can look wildly different for the same work. A fixed quote after a free site survey is the only reliable way to compare them fairly.
Free survey, fixed quote, same-week service for urgent jobs across Wiltshire. Drop us a message and someone will come back to you as soon as possible.
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