- Area
- Cumbria
- Postcode district
- CA3
- Nation
- England
- Guide price
- From £9,500 inc VAT
- Survey
- Free for installation enquiries
Before you book: air source heat pump installation in Carlisle
A heat pump suits most Carlisle homes, but the details decide how efficiently it runs. Our survey looks at insulation, radiators and hot water use room by room.
Many homes in Carlisle have a side passage or rear garden with room for an outdoor unit, and the survey checks airflow and distance from neighbouring windows. Installers working in Carlisle plan the order of work so heating and hot water are off for as short a time as practical.
We survey your home, design a heat pump system around its real heat loss, and manage the installation from the first visit to the MCS certificate.
- Homes replacing a gas, oil, LPG or electric heating system
- Owners who want one contract covering design, fitting and paperwork
- Households with room for a hot water cylinder
What's included
- Commissioning, handover and a walk-through of the controls
- MCS registration and certificate, plus network operator notification
- System design, unit sizing and a written quote
- Removal of the old boiler or heaters
- Boiler Upgrade Scheme application in England and Wales where eligible
Terraced streets in Carlisle often mean a compact unit position at the rear, so siting and sound levels are checked carefully.
Grants and rules for heat pumps in England
In England the Boiler Upgrade Scheme gives £7,500 towards an air source heat pump (£9,000 if it replaces oil or LPG, from 21 July 2026 to 31 March 2027), and since 28 April 2026 a valid EPC is no longer needed. The grant is applied for by the MCS-certified installer and shown as a deduction on your Carlisle quote.
Installing heat pumps is zero-rated for VAT across the UK until 31 March 2027. Since 29 May 2025, permitted development in England allows up to two air source heat pumps on a house, each up to 1.5 m³, with no blanket 1 m boundary rule — the installation must still meet the MCS planning standards, including the noise check. Listed buildings, flats and some conservation-area positions need extra consent, which we check at survey.
Guide prices for air source heat pump installation in Carlisle
Guide prices for Carlisle and the rest of Cumbria are shown below, installed and inc VAT. We publish ranges rather than a single figure because design details move the price, and the written quote after survey fixes it.
| Home | Typical size | Installed guide price | After £7,500 grant |
|---|---|---|---|
| 1–2 bedroom flat or small terrace | 4–5 kW | £9,500–£12,500 | £2,000–£5,000 |
| 2–3 bedroom terrace or semi | 5–7 kW | £10,500–£13,500 | £3,000–£6,000 |
| 3 bedroom semi or small detached | 6–9 kW | £12,000–£15,500 | £4,500–£8,000 |
| 4 bedroom detached | 8–12 kW | £14,000–£18,000 | £6,500–£10,500 |
| 5+ bedroom or larger older house | 11–16 kW | £16,500–£22,500 | £9,000–£15,000 |
Installed, inc VAT: unit, cylinder, controls, minor pipework and commissioning.
Designing for Carlisle's winters
Carlisle sees roughly 7 hours 11 minutes of daylight in December and 17 hours 21 minutes in June. With a longer heating season than the south, the gains from low flow temperatures and good controls add up over the year.
What happens after you enquire in Carlisle?
- Tell us about your home: postcode, property type and current heating.
- We book a survey in Carlisle; the surveyor measures rooms, windows and radiators and looks at cylinder space.
- The design and quote arrive in writing, including radiator changes and the outdoor unit position.
- On installation days the old system is removed and the new one fitted and filled.
- We commission the heat pump, show you the controls and register the installation.
Air source heat pump installation in Carlisle: questions
How soon can you survey a home in Carlisle?
Survey dates depend on how busy installers are in Cumbria. We offer the next available dates when you enquire and confirm them in writing.
Can you service a heat pump in Carlisle that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Carlisle, whoever fitted them. Tell us the make and model when you book.
How long does a heat pump survey take in Carlisle?
A home survey in Carlisle usually takes one to two hours. The surveyor measures every heated room, checks windows, walls and radiators, and looks at where the outdoor unit and cylinder can go.
Can I cancel after accepting the quote?
Nothing is ordered until you accept the written quote. Where the contract is agreed away from our premises, for example at your kitchen table, you can cancel within 14 days under the Consumer Contracts Regulations 2013. If you ask us to start sooner and then cancel, you pay only for work done up to that point.
Will an air source heat pump be noisy?
Heat pumps are designed to run quietly, but where the unit sits makes a real difference. The survey looks for a position away from bedroom windows and neighbours, with clear airflow, and the installation must pass the MCS noise assessment. The fan is most noticeable on very cold days when the unit works hardest, and a little vapour during the periodic defrost is normal.