How to Get the Best Price on a Heat Pump Installation: 5 Money-Saving Tips

The best way to get a good price on a heat pump installation is to collect at least three quotes from MCS-certified installers, time your installation for quieter months, and make sure you're claiming the full £7,500 Boiler Upgrade Scheme grant. A typical air source heat pump costs between £10,000 and £15,000 before the grant, but homeowners who follow the tips below regularly knock £2,000 to £4,000 off that figure. Here's exactly how to do it.

Why Getting Multiple Quotes Is the Single Best Way to Get a Better Price

This sounds obvious, but you'd be surprised how many people go with the first installer who picks up the phone. Getting three quotes is the bare minimum. Five is better.

Pricing varies wildly in the heat pump market right now. One installer might quote £12,500 for a system that another prices at £9,800, and the difference often isn't about quality. It's about overheads, workload, and how badly they want the job that month.

The key is making sure every installer you approach is MCS certified. This isn't optional. You need MCS certification to claim the £7,500 BUS grant, and it also means the installer has been independently assessed for competence. There are over 3,000 MCS-certified heat pump installers across the UK in 2026, so you've got options.

When you get your quotes, compare them line by line. Ask each installer to break down the cost of the heat pump unit itself, labour, pipework modifications, cylinder replacement, controls, and any radiator upgrades. If one quote is significantly cheaper than the others, ask why. If one is significantly more expensive, ask what's included that the others are missing.

Frankly, the 20 minutes it takes to request extra quotes could save you thousands of pounds. That's a pretty good hourly rate.

Time Your Installation for Off-Peak Seasons

Most homeowners start thinking about heat pumps in autumn, when their gas boiler is struggling and energy bills start climbing. That means September through December is peak season for installers, and you'll pay accordingly.

If you can plan ahead, booking your installation for late spring or summer (April through July) often gets you a better deal. Installers have quieter order books and are more willing to sharpen their pencils on price. Some manufacturers also run promotions during these months to keep sales ticking over.

There's a practical benefit too. Installation work is easier in warmer, drier weather. Outdoor work goes faster, and your household isn't left without heating during the switchover. That can mean lower labour costs and fewer delays.

One thing to watch out for: don't wait so long that you end up in a rush. If your existing boiler is on its last legs, don't gamble on it surviving another winter just to save a few hundred quid.

Right-Size Your Heat Pump and Don't Let Anyone Overspec You

This is where a lot of money gets wasted. An oversized heat pump doesn't just cost more upfront. It runs less efficiently, cycles on and off more frequently, and wears out faster.

A good installer will do a proper heat loss calculation for your home before recommending a system size. This involves measuring your rooms, checking insulation levels, noting window types, and working out exactly how much heat your house needs on the coldest days of the year. If an installer gives you a quote without visiting your property, that's a red flag.

Here's a real example. A three-bedroom semi-detached house in the Midlands with decent loft insulation and double glazing might need an 8kW air source heat pump. But a less careful installer might quote for a 12kW unit "just to be safe." That difference could add £1,500 to £2,500 to the equipment cost alone, and you'd be paying for capacity you don't need.

If your home has poor insulation, consider whether some basic upgrades (loft insulation, cavity wall insulation, or draught-proofing) might let you install a smaller, cheaper heat pump. The Energy Saving Trust estimates that insulating a cavity wall costs around £450 to £700 but could reduce heat demand by 20% or more. That's money well spent if it means you drop down a heat pump size bracket.

How to Claim the £7,500 Boiler Upgrade Scheme Grant in 2026

The Boiler Upgrade Scheme is still running in 2026, offering £7,500 off the cost of an air source or ground source heat pump. The grant is applied directly to your installation cost, so you don't need to pay the full amount and wait for a refund.

To qualify, you need to meet these conditions:

• Your property must be in England or Wales
• You must own the property (landlords qualify too, but not new builds)
• Your home must have a valid Energy Performance Certificate (EPC) with no outstanding recommendations for loft or cavity wall insulation
• The installation must be carried out by an MCS-certified installer
• The installer applies for the voucher on your behalf through Ofgem

The process is fairly straightforward. Your installer handles the paperwork, applies for the voucher, and deducts £7,500 from your invoice. You pay the remaining balance.

One thing people often miss: you can't claim the grant retrospectively. The voucher has to be issued before the work starts. Make sure your installer has confirmation from Ofgem before they begin.

Budget allocation can also run out. The scheme has been extended several times, but funding is released in tranches. If you're serious about getting a heat pump in 2026, don't sit on your hands. Get your quotes sorted and get your application in.

Can You Negotiate Bundled Services to Bring the Cost Down?

Yes, and this is a tip that most guides don't mention.

Many MCS-certified installers offer related services like hot water cylinder upgrades, radiator replacements, underfloor heating, and smart thermostat installation. If you need any of these alongside your heat pump, bundling them into a single job is almost always cheaper than having them done separately.

For instance, if you need three radiators upgraded to larger ones for your heat pump to work efficiently at lower flow temperatures, getting the installer to supply and fit them as part of the heat pump installation avoids a second call-out and a second set of labour charges. You might save £300 to £600 compared to having a separate plumber do it later.

It's also worth asking about maintenance packages. Some installers offer a discounted first-year or multi-year service plan if you book it at the time of installation. Annual servicing for a heat pump typically costs £100 to £200, so a bundled deal can be worth having.

Don't be afraid to negotiate. Ask if they'll match a competitor's quote. Ask if there's a discount for paying promptly. Ask if they have any ex-display or end-of-line units available at a reduced price. The worst they can say is no.

"Are Heat Pumps Actually Worth the Money?"

This is the objection that sits behind most people's hesitation, so let's tackle it directly.

The upfront cost is higher than a gas boiler replacement. Nobody's pretending otherwise. After the £7,500 grant, you're still looking at roughly £3,000 to £8,000 out of pocket depending on the system and your home.

But running costs tell a different story. With electricity prices sitting around 24p per kWh and gas at roughly 7p per kWh in 2026, a heat pump with a coefficient of performance (COP) of 3.5 effectively heats your home at about 6.9p per kWh. That's cheaper than gas. And if you've got solar panels, the savings are even bigger because you're generating some of that electricity yourself.

There's also the fact that the gas boiler ban for new installations is coming. Homes with heat pumps are already attracting a premium on the property market. A 2025 study from the Energy Systems Catapult found that buyers were willing to pay more for properties with low-carbon heating.

So yes, the investment makes financial sense for most homeowners, especially with the grant available. But only if you follow the tips above and don't overpay for the installation itself.

Frequently Asked Questions

How much does a heat pump cost to install in the UK in 2026?

An air source heat pump typically costs between £10,000 and £15,000 before the BUS grant. After claiming the £7,500 grant, most homeowners pay between £3,000 and £8,000 depending on the system size and any additional work like radiator upgrades or hot water cylinder replacement.

What is the cheapest time of year to get a heat pump installed?

Late spring and summer, roughly April to July, tend to be the cheapest months. Installers are less busy during this period and are more likely to offer competitive pricing. You'll also avoid the rush that comes with autumn and winter when boilers start failing.

Do I need to upgrade my radiators for a heat pump?

Not always. Heat pumps run at lower flow temperatures than gas boilers, so some radiators may need to be upsized. A good installer will check each room during the heat loss survey and tell you which, if any, need replacing. In many homes, only one or two radiators need swapping out.

Can I get a heat pump grant if I'm a landlord?

Yes. The Boiler Upgrade Scheme is open to landlords who own properties in England or Wales. The same eligibility rules apply, including having an MCS-certified installer and a valid EPC. The property must not be a new build.

How long does a heat pump installation take?

Most air source heat pump installations take two to three days. More complex jobs involving underfloor heating, multiple radiator upgrades, or ground source systems can take longer. Your installer should give you a clear timeline before work begins.

If you're ready to get quotes and find a trusted, MCS-certified heat pump installer near you, use the search tool at heatpumpinstallerdirectory.co.uk. It's free, takes about 30 seconds, and connects you directly with vetted local installers who can price up your specific job.