If your primary boiler has failed or you’re planning a maintenance shutdown, the first question is usually a practical one: What is this going to cost?
Industrial boiler hire costs in the UK vary depending on output requirements, hire duration and how quickly you need the unit on site. There are clear market benchmarks, though and understanding what moves the price helps before you request a quote.
Industrial boiler rental is where an industrial boiler that is fully fitted and complete in itself gets rented out on a short term basis to an industrial establishment for temporary heating or hot water or steam generation. All one needs to do is link the boiler to their own piping, and it is operational almost immediately.
It includes everything. Boiler, safety and control devices all get supplied in one package. The rental firm delivers, installs, operates, and takes care of maintenance and finally takes it back. You only pay as per requirement, without owning it.
The capital cost of a new industrial boiler equipment, installation, flue works and commissioning can run well into six figures. Hire makes more sense when the requirement is temporary or uncertain: emergency cover following a boiler failure, planned maintenance outages, peak demand periods that exceed installed capacity or construction projects awaiting permanent infrastructure.
The figures below represent typical UK market rates for the hire unit itself. Fuel, delivery and installation are additional costs covered separately.
Daily hire is most relevant to genuine emergencies. Because mobilisation, delivery and collection all have fixed costs regardless of duration, day rates are proportionally higher than weekly figures.
For a small commercial unit in the 100–300kW range, daily hire typically runs £150–£350 per day. Mid-range units between 300kW and 1MW generally cost £300–£700 per day. Units over 1MW can reach £700–£1,500+ per day.
| Output Range | Typical Weekly Hire Rate |
|---|---|
|
Up to 300kW |
£500 – £1,200 |
|
300kW – 1MW |
£1,000 – £2,500 |
|
1MW – 3MW |
£2,000 – £5,000 |
|
3MW+ |
£4,000 – £10,000+ |
In cases of downtime in weeks, monthly rates apply. A typical rate for a 500kW generator used for a month is between £3,000 to £6,000. For instance, a 2MW generator would go for between £8,000 to £15,000 monthly. Fixing your duration early gives you substantial savings.
Output capacity is the biggest driver of hire cost. Getting the specification right matters undersizing creates operational problems; oversizing means paying for capacity you don’t need. A hire company will size the unit based on your heated area, load type and ambient conditions.
Emergency hire where a unit is needed within 24 hours typically carries a 20–50% premium on standard rates, plus out-of-hours mobilisation charges. Planned hire, booked with reasonable lead time for a scheduled outage, is almost always cheaper where circumstances allow.
Most hire boilers run on natural gas or gas oil, with LPG for sites without mains gas. Natural gas is the most cost-effective fuel for continuous operation. Oil-fired units are slightly more expensive to hire and add fuel delivery logistics. Electric boilers suit short-duration applications but carry higher running costs at industrial output levels.
Standard delivery and basic commissioning to an accessible site typically adds £500–£2,000 as a fixed mobilisation charge. Complex installations requiring crane lifts, temporary pipework fabrication or specialist access can add several thousand pounds more.
For short to medium term requirements, hire is almost always the more cost-effective option. A new mid-sized commercial boiler with full installation can cost £80,000–£150,000 all-in. A hire contract covering the same output for six months might total £15,000–£35,000, including mobilisation and maintenance.
The installation timeline difference matters just as much. A permanent replacement typically takes 3–6 months from decision to operational plant. A hire boiler from a well-resourced supplier can be on site and commissioned within 24–48 hours.
Beyond roughly 12–18 months of continuous use, purchase economics improve. But for temporary requirements where flexibility matters, hire remains the right call.
Book ahead where possible planned hire is consistently cheaper than emergency mobilisation. Commit to a fixed term if you know how long you’ll need the unit. Ask whether existing site connection points can reduce installation costs. Always compare total package cost rather than day rates alone a lower headline rate with expensive extras can cost more overall.
Rapid Boiler Hire is a British company specialized in providing industrial and commercial boiler hire with outputs ranging from compact water boilers to larger models such as the HTHW and steam. The company employs Gas Safe engineers who provide rapid mobilization services. Their quotations include all costs without any hidden fees. In choosing a company, one should also consider factors like prompt mobilization and whether their engineers work for the company directly.
Rapid Boiler Hire offers a detailed estimate regardless whether you need the equipment urgently or not. It will include the cost of rental and installation. Feel free to contact us anytime, when faced with a boiler problem.
Weekly rates typically range from £500–£1,200 for units up to 300kW, through to £2,000–£5,000 for 1–3MW units. Emergency hire adds a 20–50% premium on top of standard rates.
For requirements up to around 12–18 months, hire is almost always cheaper when you account for the full purchase, installation and commissioning cost of a permanent replacement.
Up to 300kW suits smaller commercial premises; 300kW–1MW covers most medium-sized sites; above 1MW is typical for large industrial facilities or significant process heating demands. A hire company can confirm the right specification from your site details.
This varies by supplier. Some quote an all-in package; others price delivery and installation separately. Always request a total cost quote and confirm exactly what’s included.