The Short Answer
On our estimates, installing a domestic LPG tank costs about £1,200 to £2,500, of which the tank is £700 to £1,500. The Health and Safety Executive says the tank is usually owned by the gas supplier, tied to a supply agreement, so compare the gas price you'll be paying as well as the installation.
Flogas, one of the national suppliers, quotes a standard lead time of 6 to 8 weeks from signing. The tank has to sit outdoors, at set distances from the house, the boundary and anything that could ignite gas.
LPG tank prices
| Item | Typical cost |
|---|---|
| LPG tank installed | £1,200 to £2,500 |
| The tank on its own | £700 to £1,500 |
Going through a supplier
HSE says that in the vast majority of cases the supplier owns the tank and looks after it and its fittings. Flogas' process: a free site visit, then its own teams lay the base, dig any pit for an underground tank and run the pipework, with a supply agreement (it offers two-year fixed prices). It can also fit an LPG boiler and take away a redundant oil tank.
I'd compare at least two suppliers' agreements on the price per litre, the contract length and the exit terms, not just the installation charge.
Where the tank can go
In England, Approved Document J points to the industry code (UKLPG Code of Practice 1) and BS 5482-1 for tanks up to 1.1 tonnes in the open air. The tank goes outdoors, not in a pit, at these minimum distances from buildings, boundaries and fixed sources of ignition:
- up to 0.25 tonnes: 2.5m, or 0.3m to a fire wall;
- up to 1.1 tonnes: 3m, or 1.5m with a fire wall.
Planning: an LPG tank for heating in the garden of a house is permitted development unless it holds more than 3,500 litres, sits in front of the house, is over 2.5m high within 2m of the boundary (3m elsewhere), or is at a listed building.
Your responsibilities once it's in
HSE lists what the user of a tank must look after, even when the supplier owns it:
- keep the separation distance clear: no new walls, sheds, fences, electrics or planting closer to the tank;
- keep the ground around it clear, and no open drains or gullies nearby, because LPG vapour is heavier than air;
- keep access for the delivery tanker, and protect the tank from vehicle impact;
- don't repaint it a different colour;
- know the emergency number, which is on the tank.
Boilers and appliances
LPG boilers, fires and cookers are gas work, so they must be fitted by a Gas Safe registered engineer. For the boiler itself, see new boiler costs; if you're replacing oil, the heat pump grant is higher for homes heated by oil or LPG.
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Frequently asked questions
How much does it cost to install an LPG tank?
On our estimates, about £1,200 to £2,500, and in most cases the supplier owns the tank under a supply agreement, HSE says.
What are the UK regulations for LPG tanks?
In England, tanks up to 1.1 tonnes go outdoors, not in a pit, following UKLPG Code of Practice 1 and BS 5482-1, at least 3m from buildings, boundaries and ignition sources (2.5m for tanks up to 0.25 tonnes), less with a fire wall.
Where should an LPG tank be placed?
Outdoors, on a suitable base, at the required distance from the house, boundaries and ignition sources, with tanker access and no open drains nearby.
How long does it take to get an LPG tank installed?
Flogas, a national supplier, quotes 6 to 8 weeks from signing the contract.
How we priced thisView sources (7, 6 official)
Rules come from the legislation and official guidance, read at source. Prices are our estimates: we check them against trade price data, retailer shelf prices and specialists' price lists, then build them up from their parts so the totals add up. Below are the sources behind the page; the trade price guides we only compare against aren’t listed. Where sources disagreed, we've said so. More on our method.
- IndustryNew LPG tank installation, Flogas. Checked 16 Oct 2026.
- OfficialBulk LPG storage tank, Health and Safety Executive. Checked 16 Oct 2026.
- OfficialApproved Document J: Combustion appliances and fuel storage systems (2010 edition incorporating 2010, 2013 and 2022 amendments), GOV.UK. Checked 16 Oct 2026.
- OfficialThe Town and Country Planning (General Permitted Development) (England) Order 2015, Schedule 2 Part 1, legislation.gov.uk. Checked 16 Oct 2026.
- OfficialThe Gas Safety (Installation and Use) Regulations 1998, regulation 3, legislation.gov.uk. Checked 15 Oct 2026.
- OfficialWhat to do in a gas emergency, Gas Safe Register. Checked 15 Oct 2026.
- OfficialApply for the Boiler Upgrade Scheme: what you can get, GOV.UK. Checked 15 Oct 2026.
