The £7,500 Boiler Upgrade Scheme grant, explained properly.

The Boiler Upgrade Scheme, usually shortened to BUS, is a government funded grant administered by Ofgem. It pays £7,500 towards the cost of an air source heat pump or a ground source heat pump replacing fossil fuel heating in an existing home in England or Wales. It is not a loan, there is nothing to repay, and it is not means tested. A household on any income can claim it, provided the property qualifies.

The single most important thing to understand is that you never touch the money. The grant is applied for by an MCS certified installer, approved by Ofgem, and deducted from your invoice. When BHL quotes you for an air source heat pump installation, the figure you see already has the £7,500 taken off. There is no waiting for a rebate and no cashflow gap for you to bridge.

That also means the grant is only as good as the installer attached to it. An installer who is not MCS certified cannot apply, full stop. BHL holds MCS accreditation alongside NAPIT registration, RECC membership and Gas Safe registration, which is the combination Ofgem and the consumer codes expect to see behind a compliant installation.

Eligibility is more straightforward than the internet suggests. There are four tests, and most Cheshire homes pass all four without any additional work.

• The property is in England or Wales. Scotland has a separate scheme with different rules.
• You own the property. Owner occupiers, landlords and small non domestic properties can all claim. New builds are excluded apart from a narrow band of self build cases.
• You have a valid EPC with no outstanding insulation recommendations. Specifically, no unmet loft insulation or cavity wall insulation recommendations. Solid wall recommendations do not block the grant.
• You are replacing a fossil fuel system. Gas, oil, LPG and electric heating all count. Homes already running on a heat pump or on biomass in most cases do not.

If your EPC does carry an insulation recommendation, that is rarely the end of the road. Topping up loft insulation to current depth is a low cost job, and once it is done the EPC can be reassessed. We flag this at survey rather than letting it surface halfway through an installation.

A typical three or four bedroom Cheshire home needs somewhere between an 8kW and a 12kW air source heat pump. Installed properly, with the cylinder, buffer arrangement where required, pipework alterations, controls, commissioning and MCS certification, that is a meaningful piece of work. The grant covers a large proportion of it, and for smaller, well insulated properties it can cover the majority.

What moves the final figure up or down is almost never the heat pump itself. It is the emitters. A heat pump runs at a much lower flow temperature than a gas boiler, so the heat has to leave the system across a larger surface area. That means either larger radiators or, far better, retrofit underfloor heating. Where lifting floors is not an option, our retrofit floor milling method cuts pipe channels straight into the existing slab, so you get the ideal emitter for a heat pump without rebuilding the floor.

Homeowners who pair the grant with underfloor heating tend to get the best long term result, because the heat pump can then run at 35 to 40 degrees rather than 50 plus. Every degree lower is a measurable improvement in efficiency, and efficiency is what determines your running cost for the next fifteen years.

• "The grant runs out." Funding is allocated in annual budgets, so applications are not unlimited across a year, but there is no queue to join in advance. The practical answer is to survey now rather than defer.
• "I need to replace every radiator." Usually untrue. The heat loss calculation typically identifies a handful of rooms that need a larger emitter, not a whole house strip out.
• "Heat pumps do not work in older houses." They work in most Cheshire housing stock, including Victorian and 1930s properties. What matters is the emitter surface area and the flow temperature, not the age of the brickwork.
• "They are noisy." A modern unit sits around the noise level of a fridge at a few metres. Siting is part of the MCS design, and we assess it at survey.

The honest answer depends on what you are replacing and what emitters you have. Homes coming off oil or LPG almost always see an immediate running cost improvement. Homes coming off mains gas see a smaller difference on day one, but with underfloor heating and a low flow temperature the gap closes considerably, and the direction of travel on gas pricing and building regulations only points one way.

Where we will tell you not to proceed is a property with very high heat loss, no realistic route to improving the emitters, and no appetite for insulation work. We would rather lose the job than install a system that disappoints. If that is your property, our consultancy and system design service can map out a staged route instead.

For a straight answer on your own property, compare the numbers in our heat pumps versus gas boilers guide, or look at what we have already delivered locally in Wilmslow, Macclesfield and South Manchester.

Find out what your home qualifies for.

Book a free survey and we will confirm your grant eligibility, size the system properly and give you a fixed price with the £7,500 already deducted.