Straight answers.
No jargon.

It's a low-carbon heating system that takes warmth from the outdoor air and uses it to heat your home and hot water, even in winter. It's quiet, easy to use and needs little maintenance. See how it works.

Very. They're 300–400% efficient: every 1 kW of electricity gives you 3–4 kW of heat, because most of the energy comes free from the air. Even the best gas boiler can't beat 100%.

Yes. The heat pumps we fit keep working down to −25 °C, and we design every system to MCS standards for the coldest days in your postcode. It runs for longer at a lower temperature than a boiler, giving steady warmth. Our Heat Pump Promise means if it doesn't keep you at the agreed temperatures in year one, we fix it or refund you.

Less than you'd think. At 3 metres it's around 38 dB(A), like a fridge or a quiet library, and within the 42 dB permitted-development limit. It runs at a low hum while working and may be a little louder on the coldest days, but you shouldn't hear it indoors or be kept awake by it. Every install includes a noise assessment, and Ideal Logic Air is Quiet Mark approved.

20 years or more with an annual service, compared with 10–15 years for a typical gas boiler.

Most homes are, including flats. You need space outside for the unit and somewhere inside for a hot water cylinder. We may recommend insulation or some bigger radiators, and we'll design a system around your home. The quickest way to check is to get your instant price.

Up to 70% less carbon from your heating, because nothing is burnt in your home. Pair it with a zero-carbon electricity tariff from EDF, Britain's biggest generator of zero-carbon electricity, to go further.

No. There are currently no plans for a gas boiler ban. Heat pumps are growing in popularity because they can save carbon and, in many homes, money.

No. A hybrid pairs a heat pump with a gas boiler, and hybrids don't qualify for the Boiler Upgrade Scheme grant. We fit standalone air source heat pumps, which do.

It can. It cuts your home's carbon footprint and is increasingly attractive to buyers. The grant stays with the property if you move.

From £4,100 with EDF Express, after the £7,500 grant, if we can reuse your cylinder. With a new cylinder, most homes pay about £4,600–£6,500 after the grant. Your price depends on your home's size and heat loss, your current system, your radiators, how much hot water you use and your grant. Get your instant price in 2 minutes, or see typical prices.

• Technical assessment and system design
• Heat pump, hot water cylinder and controls
• Installation and set-up
• Plumbing and electrical supplies
• Any radiator upgrades in your quote
• Your grant application, handled for you
• EPC and MCS certificates
• Manufacturer warranty plus 2 years on all other parts
• A dedicated support team from quote to after install

• Groundworks and site preparation, such as a concrete base
• Planning permission, which is rarely needed
• Scaffolding, if your install needs it
• Fuse or supply upgrades: we talk to your network operator, and you approve any work
• Underfloor heating, which needs a separate contractor

No. Your fixed quote lists everything. Some homes need extras like radiator upgrades, a new cylinder or insulation, and we'll explain any of these before you commit.

We apply for the Boiler Upgrade Scheme grant on your behalf and take it off your price upfront. You don't fill in any forms. Eligibility rules are on gov.uk.

Yes, if your home is off the gas grid and you're replacing oil or LPG heating in England or Wales. The higher grant runs until 31 March 2027. Check your grant.

No. Since April 2026 you don't need an EPC, and there's no insulation condition. We may still recommend insulation, because it can mean a smaller heat pump and lower bills.

In Scotland, Home Energy Scotland offers a grant of up to £7,500 (plus £1,500 for rural homes) and an optional interest-free loan of up to £7,500. Our partner covers G, EH, KY, TD, ML, AB43, AB54, AB56 and DD8 postcodes. We don't currently install in Northern Ireland.

We don't recommend it, and you wouldn't get the grant. The Boiler Upgrade Scheme needs an MCS-certified installer, like us, to design, supply and fit the system.

Not until 31 March 2027. Heat pump installs are zero-rated until then, rising to 5% from 1 April 2027. Our prices already include this.

It depends on what you're replacing and your tariff. Replacing an old G-rated gas boiler can save up to £290 a year (Energy Saving Trust). Oil, LPG and storage heaters save much more. Against a new A-rated gas boiler, bills stay about the same. The Heat Pump Tracker tariff adds about £146 a year, and solar panels, batteries and insulation help too.

30 days. Once you order, your price holds for 20 weeks to installation. If installation is delayed beyond that, we'll need to requote.

Once your heat pump is installed, refer friends and family. When their install is complete, you get £250 cash and they get £250 off. There's no limit. We can't accept referrals advertised on social media, websites or ads. More on referrals.

Yes. Representative example: cash price £11,600, grant −£7,500, balance £4,100, deposit £850, credit £3,250. 120 monthly payments of £38.79 at 7.9% APR representative. Total charge for credit £1,405.38, total payable £5,505.38. You can also pay over 60 months at 7.9% APR or 24 months at 0% APR. See all options.

• UK homeowner aged 18 or over
• Under 85 at the end of the loan term
• Your own bank account
• A regular income

The lender does, as part of your application. Credit is subject to status and affordability.

No. The deposit is between 15% and 25%. We don't receive any commission for introducing you to our finance provider, so you're free to use your own finance if you prefer.

Usually the month after your heat pump is installed and running. Missing repayments can affect your credit rating.

Yes, within 14 days. You can then choose another way to pay.

The grant stays with the property, but a personal loan stays with you. You'd keep paying or settle the balance.

Yes. EDF Heat Pumps is an Appointed Representative of Shermin Finance Limited, authorised and regulated by the Financial Conduct Authority (FRN 727594). Shermin acts as a credit broker, not a lender, and doesn't charge fees for its consumer credit services.

An £850 deposit secures your order, even with finance. The balance is due after installation.

Six steps: your instant online price, a chat with an advisor (no hard sell), a free technical survey, your design and fixed quote, installation, then aftercare. Most homes are installed within 8–12 weeks of ordering. See the journey.

Usually 3–5 days: prep on day 1, pipework and electrics on day 2, radiators and switchover on day 3, then commissioning and handover.

A local installer spends about 2 hours measuring every room and photographing your system for our designers. They're there to collect data, so detailed design questions go to the design team, who'll come back with accurate answers.

Not always. Heat pumps run at lower temperatures, so they work best with larger radiators. We check every room and only upgrade those that need it, often swapping old single-panel radiators for double or triple panels. Avoid designer radiators, towel rails and cast iron. Upgrades are in your quote.

The outdoor unit is about 1 m × 0.5 m. Allow about 2 m × 1 m of ground, with 1 m clear in front and at least 200 mm behind. Inside, a cylinder is about 70 × 70 × 200 cm, or an integrated unit fits a 600 × 600 mm space.

Rarely. Most heat pumps are permitted development. Listed buildings and conservation areas usually need permission, and so would a site where our noise assessment shows 42 dB or more, which is very unusual. The old rule that a unit must be 1 metre from your boundary has gone: we check noise and airflow at your neighbours' homes instead.

No. In an enclosed space it would pull all the heat from the air inside and turn the building into a freezer.

Yes, at extra cost for longer insulated pipes and cables. You'd arrange the trenching, and it must be open and ready on install day. Mention it early so it's in your quote.

We don't do building or groundwork. A patio or shingle drive often works as is, or we may use a wall bracket. If you need a concrete base, your builder lays it before install day, and we give you the sizes.

We size it to how many people live with you and how many showers could run at once. If your cylinder is under 10 years old, unvented, stainless and upright, EDF Express may reuse it. Integrated 180 or 230 litre units suit split systems, not Daikin monobloc.

Yes. Solar PV with batteries can offset your electricity use over the year. Solar thermal can cover 40–60% of your hot water using a twin-coil cylinder, and we can often reuse yours. Heat pumps work very well with underfloor heating, though we don't fit new underfloor systems.

We'll aim to keep your system as it is and change only the cylinder, as switching could upset any pumps boosting your showers.

Empty it first. You can take the oil to your local recycling centre or offer it to a neighbour. We can put you in touch with a national company that removes tanks, at extra cost.

Yes. We can design your system from your plans, so it's right for the finished home.

Check they're MCS certified, have a long track record across different homes, and have honest reviews. We've installed heat pumps since 1999, we're a Which? Trusted Trader, and we show all our Trustpilot reviews.

Yes. Ideal systems use the Ideal Halo controller and app, and Daikin systems use the Daikin controller and Onecta app. We set it up and show you how at handover.

In most cases, yes. Tell your designer, and if you have a solar iBoost we can usually keep that connected to your cylinder too.

Anywhere from 30 minutes to a few hours, depending on insulation, radiators and the temperature you want. It's most efficient left running steadily, turned down a little when you're out.

An annual service by an MCS-certified engineer keeps it efficient and your warranty valid. It's usually quicker than a boiler service. Between services, keep the unit clear of leaves, snow and debris, and bleed radiators when needed.

Daikin comes with 7 years as standard. Ideal comes with 5 years, extended to 7 with our current offer, which also includes 7 years' free servicing. All other parts are covered for 2 years.

We set weather compensation on install day, so your heat pump sends cooler water on mild days and warmer water on cold ones. Weather affects efficiency a little: it works harder when it's freezing. Clear leaves in autumn, pollen in summer and snow in winter so air flows freely.

EDF's heat pump tariff takes 10p/kWh off your electricity from 4–7am and 1–4pm every day. The rest of the day follows the Ofgem price cap. Run your heating and hot water in those windows to save more. See how it works.

Against the standard single-rate price cap, for a home using 2,500 kWh of electricity for a heat pump with a COP of 3.1, giving the same heat as a 93% efficient gas boiler using 9,500 kWh of gas.

Yes, one that sends readings every 30 minutes. Not with EDF yet? Switch first, then apply for the tariff.

It's a tracker, so prices move with the Ofgem price cap, and we'll always tell you when they change. There are no exit fees or tie-ins, so you can switch whenever it suits you.

It's backed by zero-carbon electricity that EDF generates itself. There's no gas version: it's electricity only, because it's linked to your heat pump.

We don't control the in-home display technology, so it may not show tariff rates correctly. Your bill will.

No. Feed-in tariffs are for systems that generate electricity, like solar panels.