- Area
- Northumberland
- Postcode district
- NE66
- Nation
- England
- Guide price
- From £9,400 inc VAT
- Survey
- Free for installation enquiries
Before you book: replacing a gas boiler with a heat pump in Alnwick
Every property in Alnwick is different, so the design starts from measurements rather than a rule of thumb. That keeps the system the right size and the running costs predictable.
Semi-detached and terraced houses in Alnwick often have an airing cupboard that can be reused for a heat pump cylinder. Households across Northumberland moving off gas can have a survey in Alnwick that compares running costs on realistic assumptions.
Moving from mains gas to a heat pump means finding cylinder space, deciding what happens to the gas supply and comparing running costs on realistic assumptions.
- Boilers that are old, unreliable or due for replacement
- Homes in England and Wales eligible for the Boiler Upgrade Scheme
- Combi owners who can find space for a hot water cylinder
What's included
- Capping of the gas pipe at the boiler position where you are giving up gas
- Commissioning, MCS certificate and grant application in England and Wales where eligible
- Removal of the gas boiler, flue and any loft tanks
- System flush and radiator upgrades where the design calls for them
- Free survey with heat loss calculation and cylinder siting
Installers in Alnwick take out the old boiler and flue and seal the wall opening as part of the job.
Grants and rules for heat pumps in England
Homes in Alnwick can use the Boiler Upgrade Scheme, which takes £7,500 off the cost of an air source heat pump when it replaces fossil-fuel or electric heating. Replacing oil or LPG heating qualifies for £9,000 for installations from 21 July 2026 to 31 March 2027, and air-to-air systems for £2,500. The MCS-certified installer named in your quote applies for the grant and deducts it from the price.
There is no VAT on installing a heat pump anywhere in the UK until 31 March 2027. In England most houses can have an air source heat pump under permitted development, provided the unit meets the MCS noise and siting standards; the old 1 m boundary limit was removed on 29 May 2025. We flag listed buildings, flats and sensitive conservation-area positions at survey.
Guide prices for replacing a gas boiler with a heat pump in Alnwick
These are guide prices for Northumberland, installed and including VAT. Your final price is fixed in a written quote after the survey and depends on the heat loss of the house, the radiators that need changing and where the unit goes.
| Home | Typical size | Installed guide price | After £7,500 grant |
|---|---|---|---|
| 1–2 bedroom flat or small terrace | 4–5 kW | £9,400–£12,400 | £1,900–£4,900 |
| 2–3 bedroom terrace or semi | 5–7 kW | £10,400–£13,350 | £2,900–£5,850 |
| 3 bedroom semi or small detached | 6–9 kW | £11,900–£15,350 | £4,400–£7,850 |
| 4 bedroom detached | 8–12 kW | £13,850–£17,800 | £6,350–£10,300 |
| 5+ bedroom or larger older house | 11–16 kW | £16,350–£22,300 | £8,850–£14,800 |
Installed, inc VAT: unit, cylinder, controls, minor pipework and commissioning.
Short winter days in Alnwick and what they mean
Alnwick has about 7 hours 05 minutes of daylight at midwinter against 17 hours 28 minutes in midsummer. Heat pumps are designed to keep working well below freezing, but the design temperature for the survey is set for local conditions, not an average day.
How installation works in Alnwick
- Tell us about your home: postcode, property type and current heating.
- We book a survey in Alnwick; 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.
Replacing a gas boiler with a heat pump in Alnwick: questions
Do I need new radiators for a heat pump in Alnwick?
Often some, not all. Heat pumps run best at lower water temperatures, so rooms with small radiators may need larger ones. The survey of your Alnwick home gives a room-by-room list.
Can you service a heat pump in Alnwick that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Alnwick, whoever fitted them. Tell us the make and model when you book.
How soon can you survey a home in Alnwick?
Survey dates depend on how busy installers are in Northumberland. We offer the next available dates when you enquire and confirm them in writing.
Should I have my gas meter removed?
If gas is used for nothing else, removing the meter ends the gas standing charge, which is about £108 a year at the October to December 2026 price cap. If you still cook on gas or have a gas fire, you will need to keep the supply. Meter removal is arranged through your gas supplier, usually once the heat pump is running; the pipe at the boiler position is capped during the installation.
Do I need to replace the cylinder I already have?
Usually, yes. Older cylinders have a small internal coil designed for water from a boiler at around 60–70°C, and they cannot take in heat quickly enough at the lower temperatures a heat pump runs at. A heat pump cylinder has a larger coil. On its own, a cylinder supplied and fitted has a guide price of £1,200–£2,200, installed and including VAT, though it is normally part of the full system price.