When to replace, what a proper job includes, bunded vs single-skin, the regulations that apply, and how we work across Wiltshire — usually within the same week.
If your home runs on heating oil, domestic oil tank installation and replacement is one of the more important jobs you'll book — and the stakes are higher than most people realise. An ageing, corroded or poorly installed tank isn't just an inconvenience; a failure can mean ground contamination, an insurance dispute and a clean-up bill far larger than a planned replacement would ever cost.
Most homeowners don't replace a tank until a red flag appears — a persistent smell, a stain, or a warning from a service engineer. That reactive approach can be costly. If your tank is leaking, weeping at the seams, badly corroded or simply past its working life, it needs replacing before it fails completely. Book a replacement if you notice any of the following:
New builds and properties moving away from mains gas also need a compliant fresh oil tank installation from scratch, sized and sited correctly from day one.
A proper replacement isn't just swapping one tank for another. Done correctly, the job covers everything from the survey through to certification. Our fixed-price replacement service includes:
No hidden extras. No vague timelines. You get a fixed quote after survey, and we turn up when we say we will.
This is the question we get on almost every survey. A bunded tank is 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 is safely contained. In 2026, a bunded tank is required in most modern installs. It's typically required:
Single-skin tanks are still compliant in some lower-risk locations, but they're becoming less common in new installs. We'll advise honestly on the right tank for your site, based on a real survey. Our bunded tank guide explains the difference in full.
Domestic oil tank installation is notifiable work under Building Regulations. That means it has to be done right, documented and certified. A qualified engineer can self-certify the work and issue a completion certificate without you having to involve the local authority separately. The UK oil tank regulations cover three main areas:
Getting this wrong doesn't just risk a fine — it can invalidate your home insurance and leave you personally liable for any contamination. We handle all the paperwork and certification as part of every job.
Pricing depends on tank size, bunded versus single-skin, whether the base needs rebuilding, and how complex the removal of the old tank is. There's no honest way to quote a fixed number without seeing the site first. What we can tell you is that a full replacement covers everything in one price — no surprise add-ons for base work, pipework or disposal. The key factors:
An old oil tank can't just be dragged out and skipped. Residual oil and sludge make it hazardous waste, requiring licensed handling. Our removal and disposal service is included as standard in every replacement: we drain the residual oil, disconnect the pipework, cut the tank down on site if required, and take the old one away for recycling. For contaminated or leaked tanks, we can also advise on any ground remediation needed before a new tank goes in.
Annual servicing is the single best thing you can do to extend tank life and protect your insurance. Our annual servicing covers visual and structural inspection, bund integrity checks, gauge and valve condition, and a written report. Issues caught early are far cheaper to fix than a full replacement under emergency conditions — and many policies require evidence of annual inspection for a leak claim to be valid.
Many homes across Wiltshire — particularly in the outlying villages off the mains gas network — rely entirely on heating oil. When your tank needs replacing, you want a genuinely local team who can be out quickly, not a national booking line. We cover the whole county, including Salisbury, Swindon, Chippenham, Trowbridge, Devizes, Marlborough and Warminster, plus the rural villages in between.
We're a family-run team based in Wiltshire — not a call centre taking bookings for engineers you'll never speak to. Same-week service is our standard, not a premium add-on, and for leak and pollution emergencies we make it a priority.
Most installations and replacements are completed in a single day. The exact time depends on site access, base preparation, and whether the old tank needs careful decommissioning due to contamination or leaks.
Most domestic installations fall under permitted development and don't require planning permission, but they do require Building Regulations notification — handled through self-certification, so no separate application is usually needed.
No. This is notifiable work under Building Regulations and must be carried out by a qualified engineer to be legally certified. DIY installation cannot be self-certified and could invalidate your home insurance.
Tanks older than 15 years with corrosion, staining or weeping seams almost always need full replacement. Repairs to single-skin tanks at the end of their life are short-term and often don't satisfy insurer requirements. A free survey gives an honest assessment.
Our engineers replace domestic and commercial oil tanks across Wiltshire, usually within the same week, and take the old one away for recycling. Drop us a message for a free survey and fixed quote.
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