The other decision is the gas supply. If gas is used for nothing else — no gas hob, fire or cooker — you can have the supply capped and the meter removed, which ends the gas standing charge of about £108 a year at current price cap rates. We talk through each choice at the survey so you can decide before you accept the quote.
Many gas-heated homes in Suffolk have a combi boiler in the kitchen, so the survey starts by finding the right place for a cylinder. Households across Suffolk moving off gas can have a survey in Suffolk that compares running costs on realistic assumptions. Semi-detached and terraced houses in Suffolk often have an airing cupboard that can be reused for a heat pump cylinder.
Who it suits
- Boilers that are old, unreliable or due for replacement
- Combi owners who can find space for a hot water cylinder
- Homes in England and Wales eligible for the Boiler Upgrade Scheme
- System or regular boiler homes with an existing airing cupboard
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 quote.
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.
Gas boiler to heat pump prices in Suffolk
These are guide prices for Suffolk, 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 | £9,500–£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.
Towns we cover in Suffolk
We cover 11 towns in Suffolk for replacing a gas boiler with a heat pump. Each links to local guide prices and the grant position for England.
| Town | Postcode district | Nearest town | Midwinter daylight |
|---|---|---|---|
| Ipswich | IP1 | Woodbridge | 7 h 44 min |
| Lowestoft | NR32 | Beccles | 7 h 39 min |
| Bury St Edmunds | IP33 | Stowmarket | 7 h 42 min |
| Haverhill | CB9 | Newmarket | 7 h 44 min |
| Felixstowe | IP11 | Harwich | 7 h 45 min |
| Sudbury | CO10 | Halstead | 7 h 44 min |
| Stowmarket | IP14 | Ipswich | 7 h 42 min |
| Newmarket | CB8 | Haverhill | 7 h 42 min |
| Beccles | NR34 | Lowestoft | 7 h 40 min |
| Southwold | IP18 | Beccles | 7 h 41 min |
| Woodbridge | IP12 | Ipswich | 7 h 43 min |
Replacing a gas boiler with a heat pump questions
What if my gas boiler is fairly new?
A newer boiler can still be replaced, but the timing is worth weighing. Some owners switch when the boiler needs a major repair; others prefer to plan the change for a convenient time. Across the UK, heat pump installation is zero-rated for VAT until 31 March 2027. A hybrid system, which keeps the boiler alongside a heat pump, is another option, though it is not eligible for the Boiler Upgrade Scheme in England and Wales.
Will my hot water run out with a heat pump?
Not if the cylinder is sized properly for your household. The survey asks how many people live in the home, how many bathrooms you have and whether you prefer baths or showers, then sizes the cylinder to suit. The heat pump reheats the cylinder on a schedule, often overnight and again during the day, and an immersion heater acts as a backup.
Can a heat pump replace a combi boiler?
Yes, but you need room for a hot water cylinder, because heat pumps store hot water rather than heating it on demand. Most homes find a space in a cupboard, utility room, garage or under the stairs, and compact or combined indoor units help where space is tight. The survey measures the options first, so you know where everything will go before you accept the quote.
Is there a grant to replace a gas boiler with a heat pump?
In England and Wales, the Boiler Upgrade Scheme gives £7,500 towards an air-to-water heat pump that replaces a gas boiler, for eligible owners of existing homes. The MCS-certified installer applies to Ofgem and deducts the grant from your quote, and Ofgem contacts you to confirm. Scotland has separate Home Energy Scotland funding, and Northern Ireland has no dedicated homeowner grant at present.