Air-to-Air Heat Pump Costs in Plymouth

How Much Does an Air-to-Air Heat Pump Cost in Plymouth?

The honest answer is that it depends on how many rooms you want to heat and cool, how big they are and how easy it is to connect the indoor and outdoor units. The figures below are typical installed prices for Plymouth homes, before any grant, to help you plan.

What Pushes the Price Up or Down

• Number of rooms — each extra indoor unit adds equipment, pipework and labour.
• Size and heat loss of each room — draughty, north-facing or high-ceilinged rooms need more capacity.
• Pipe run and outdoor unit position — longer runs, upper floors and awkward walls take more time.
• Electrical work — most installs need a dedicated circuit from the consumer unit.
• Unit model and features — quieter, higher-efficiency and smart-controlled models cost more.
• Access — scaffold or a cherry picker for high walls adds cost.
• Making good — trunking, decoration and condensate drainage around the indoor units.
• Grant eligibility — an eligible install can have £2,500 or £7,500 taken off the price.

Worked Examples

A home office in a Peverell semi

A small back bedroom used as an office, with the outdoor unit on the rear wall directly behind it. A short, simple single-split install, completed in a day. Typically towards the lower end of the single-room range.

Living room and main bedroom in a Mutley terrace

Two indoor units served by one multi-split outdoor unit in the back yard, with pipework run neatly in trunking up the rear wall. Usually within the two-room range, and eligible for the £2,500 grant if it replaces electric or gas heating in those rooms as part of an eligible installation.

A two-bed flat near the Hoe on storage heaters

Three indoor units — lounge and two bedrooms — on one outdoor unit on a balcony bracket, with the freeholder’s permission. The storage heaters are removed. Typically in the upper part of the multi-room range, with a strong case for the grant and much lower running costs than storage heating.

A loft conversion in Plymstock

A hot top-floor room that’s too warm in summer and slow to heat in winter. A single high-wall unit with a longer pipe run down the side of the house. Mid-range for a single room because of the access and pipe length.

These are illustrations, not quotes. Your price is confirmed after a free survey.

What’s Included in Our Quotes

• Survey and room-by-room sizing;
• indoor and outdoor units, brackets and anti-vibration mounts;
• refrigerant pipework, insulation, trunking and condensate drainage;
• electrical connection to a dedicated circuit;
• commissioning, testing and a handover of the controls;
• removal of packaging and, where agreed, old heaters;
• manufacturer warranty registration.

Anything that depends on what we find — such as a consumer unit that needs replacing or scaffolding for a high wall — is shown as a separate line so you can see exactly what you’re paying for.

Running Costs

Running costs depend on how much heat your home needs, the efficiency of the system and your electricity tariff. As a comparison, electric panel heaters and storage heaters turn one unit of electricity into one unit of heat, while a well-installed air-to-air heat pump typically delivers two and a half to four. For the same warmth, that usually means spending a third to a half of what direct electric heating costs.

Against gas central heating the saving is smaller and depends on prices at the time, but heating just the rooms you use — rather than the whole house — can make a meaningful difference, and you gain cooling in summer.

Is It Worth It?

For homes on electric heating, the payback is usually strongest: the grant reduces the upfront cost and the running cost saving is large. For homes on gas, an air-to-air heat pump is often best seen as a way to heat and cool the rooms you use most, efficiently and comfortably, rather than as a replacement for the whole heating system. We’ll give you a straight view at the survey.

Air Source Heat Pump Costs

If you’re replacing a boiler with an air source heat pump, the cost is higher because the installation includes the outdoor unit, a hot water cylinder, controls, changes to pipework and sometimes larger radiators. For a typical Plymouth home, an installed system costs roughly £8,000 to £14,000 before the grant, with larger or more complex homes costing more. An eligible installation has £7,500 taken off, or £9,000 for homes replacing oil or LPG with no mains gas until March 2027.

How to Compare Quotes

When comparing prices from different installers, check that each quote covers the same things:

• the make, model and size of each unit, and how the size was worked out;
• where the outdoor unit will go and how the pipework will be run;
• whether electrical work, condensate drainage and trunking are included;
• who handles the grant, and whether the price is shown before and after it;
• the warranty period and what servicing is needed to keep it;
• whether removal of old heaters and making good are included.

A noticeably cheaper quote can mean a smaller unit, a less suitable position, or extras that appear later. A clear, itemised quote makes comparison easier.

Ways to Keep the Cost Down

• Start with the rooms you use most. Living rooms and main bedrooms make the biggest difference.
• Keep pipe runs short. An outdoor unit close to the indoor unit costs less to install.
• Plan for the future. If you might add rooms later, a multi-split outdoor unit with spare capacity can save money overall.
• Improve insulation first. Better loft insulation and draught-proofing can mean a smaller, cheaper unit.
• Check the grant early. Eligibility can change which system makes most financial sense.

Servicing Costs

We recommend an annual service. A typical domestic service costs roughly £70 to £250 per unit, depending on the work involved. Regular servicing keeps efficiency up and is usually a condition of the manufacturer’s warranty. See servicing and repairs.