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Heat Pump Energy
A white air source heat pump beside a tall brick gable wall under a cloudy sky

Air source heat pumps

How a heat pump install works, start to finish.

Five stages, from your grant figure to a system that's commissioned and serviced. Nothing is sized until your house has been measured.

01Estimate

Start with the number.

Tell us what heats your home now and whether there's a gas meter, and you'll see your grant immediately: £7,500 for most homes, £9,000 for off-grid homes replacing oil or LPG.

Add your home type and bedrooms and Mark follows up with a written estimate.

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What heats your home now?
Is there a mains gas meter?

A capped meter still counts.

Your grant

£7,500

The standard grant for homes on mains gas.

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Your grant

£7,500

The higher grant is for homes replacing oil or LPG.

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Your grant

£7,500 or £9,000

One more tap. Is there a mains gas meter at the property?

Your grant

Higher grant

£9,000

Off the gas grid and replacing oil.

Applications by 31 March 2027.

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Your grant

Higher grant

£9,000

Off the gas grid and replacing LPG.

Applications by 31 March 2027.

Get my full estimate

Your grant

£7,500

With a gas meter at the property, the standard grant applies.

Get my full estimate

Your grant

£7,500

With a gas meter at the property, the standard grant applies.

Get my full estimate

Your grant

On mains gas: £7,500. Oil or LPG with no gas meter: £9,000 until 31 March 2027. Everyone else: £7,500.

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Air-to-air heat pumps get £2,500. Hybrid systems get no grant. Source: GOV.UK Boiler Upgrade Scheme and Ofgem guidance, July 2026.

02Survey

Your house, measured.

We use LiDAR scanning to build a floor plan of the whole house. That plan goes into the MCS Design Platform, which calculates the heat loss of every room.

The heat pump, the cylinder and any radiator changes are all chosen from those figures.

  • Every room measured, not estimated
  • Heat loss calculated to MCS standards
  • An upgrade proposal for your property
14' 1/4"11' 1"14' 1/4"2' 5"6' 3/4"2' 10"11' 3 1/2"6' 2 3/4"3' 5 1/2"12'4' 11 1/2"5' 3 1/2"4' 7"6' 9 1/4"10' 11"3' 1"4' 11"3' 1 1/2"11' 9 3/4"7' 1/4"3' 7"7' 2"4' 10 3/4"2' 6"5' 1/4"12' 5"ToiletDining Room134.03 sq ft11' 9 3/4" × 11' 4"Kitchen158.30 sq ft14' 1/4" × 11' 3 1/2"Hallway105.39 sq ft10' 1/2" × 12' 5"Living Room169.88 sq ft14' 10 1/4" × 12'
Ground floor582 sq ft
3' 3 1/4"4' 9"8' 7 1/4"7' 11 1/2"9' 10 1/2"8' 5 1/2"3' 3"5' 7"7' 5 3/4"12' 1 3/4"6' 6"2' 3"6' 1 1/4"6' 10 1/4"11' 1"3' 4 1/4"5' 5 1/2"Bathroom47.14 sq ft5' 7" × 8' 5 1/2"Bedroom46.05 sq ft5' 5 1/2" × 8' 5"Primary Bedroom175.15 sq ft12' 3 3/4" × 14' 10 1/2"Hallway50.00 sq ft11' 4 3/4" × 9' 10 1/2"Bedroom86.60 sq ft8' 7 1/4" × 10' 3/4"
First floor405 sq ft

Whole house

6.5 kW

Sized

7 kW heat pump

A real floor plan from one of our scans. The heat loss and heat pump size are an illustration: your survey gives yours.

03Proposal

The design, the grant and the paperwork.

You get a proposal built on your survey. We work with Ample, our MCS umbrella partner, who handle the Boiler Upgrade Scheme application, the application to your electricity network operator, and finance options, so the customer journey stays straightforward.

Your proposal

What's in it

  • Your designBuilt on your survey's heat loss figures
  • Grant applied forBoiler Upgrade Scheme, through Ample
  • Network applicationYour DNO, handled through Ample
  • Ways to payFinance through Ample, subject to status
  • Insurance-backed guaranteeThrough Ample

04Installation

What gets fitted.

An outdoor heat pump unit, a hot water cylinder and the controls, plus any radiators the heat loss calculation says need upsizing. Underfloor heating can be part of it too.

  • Outdoor unit on a wall or base
  • Hot water cylinder sized to your household
  • Controls you can actually use
  • Radiators or underfloor heating where needed
A cupboard fitted with a hot water cylinder, underfloor heating manifold and heat pump controller
Cylinder, manifold, controls

05Commissioning and aftercare

Handed over properly, and looked after.

The system is commissioned and set up for your home, and you're shown how the controls work. After that, we service heat pumps from £150 a year, with maintenance plans from £12.99 a month.

  • Commissioning and handover
  • Annual servicing from £150
  • Heat pump plans from £12.99 a month
See servicing and plans
Insulated pipework and a pump neatly fixed to a boarded wall
Serviced from £150 a year

Outside, in the loft, in the detail.

An air source heat pump on wall brackets beside a front window, with the engineer's van and tools behind
Outside
A long horizontal hot water cylinder installed in a boarded loft
In the loft
Close-up of a heat pump fan grille and the insulated pipework running along the wall below it
The detail

Before you decide.

The questions people ask about their house, and about who certifies the work.

1Your house

Will a heat pump keep us warm in winter?

It should, when it's sized properly. That's what the survey is for: every room's heat loss is calculated for cold conditions where you live, and the heat pump is chosen to match.

Will all my radiators need changing?

Not usually all of them. A heat pump runs cooler water than a boiler, so some rooms may need a larger radiator. The heat loss calculation shows exactly which ones.

Where does the outdoor unit go?

Somewhere outside with good airflow, usually against a wall or on a base close to the house. The survey looks at the options for your home and the noise check that comes with them.

Do I need a hot water cylinder?

Most homes with a heat pump do, because a heat pump heats and stores water rather than heating it instantly like a combi boiler. The survey sizes it to your household.

2Certification and aftercare

Are you MCS certified?

Our heat pumps are installed under the MCS certification of our partner Ample (Fornax Energy Ltd). That certification is what makes your install eligible for the grant.

Who services it afterwards?

We do. Heat pump servicing starts from £150 a year, and there are maintenance plans from £12.99 a month.

See servicing and plans
What guarantee do I get?

Installs come with an insurance-backed guarantee through Ample.

Heat Pump Energy Ltd. Doesn't cost the earth.

Start with your grant.

Two taps show your grant. Two more and Mark has everything he needs to send your estimate.

Bessacarr, Doncaster · Monday to Friday, until 5pm

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