- Area
- Hertfordshire
- Postcode district
- SG1
- Nation
- England
- Nearby
- Hitchin, Letchworth Garden City, Welwyn Garden City
Stevenage is in Hertfordshire, and the nearest towns we also cover include Hitchin and Letchworth Garden City. Whether you are replacing a gas, oil or electric system, the design starts with measuring how much heat each room loses on a cold day.
Heat pump services in Stevenage
All services in Stevenage:
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 Stevenage 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.
Heat pump guide prices in Stevenage
These are guide prices for Hertfordshire, 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 | £10,000–£13,150 | £2,500–£5,650 |
| 2–3 bedroom terrace or semi | 5–7 kW | £11,050–£14,200 | £3,550–£6,700 |
| 3 bedroom semi or small detached | 6–9 kW | £12,600–£16,300 | £5,100–£8,800 |
| 4 bedroom detached | 8–12 kW | £14,700–£18,900 | £7,200–£11,400 |
| 5+ bedroom or larger older house | 11–16 kW | £17,350–£23,650 | £9,850–£16,150 |
Installed, inc VAT: unit, cylinder, controls, minor pipework and commissioning.
Designing for Stevenage's winters
On the shortest day Stevenage gets about 7 hours 45 minutes of daylight, with the noon sun around 15° up. The heating season runs from autumn into spring, so a heat pump that is sized correctly and set up with weather compensation does most of its work in steady, cool conditions.
Heat pumps in Stevenage: questions
Can you service a heat pump in Stevenage that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Stevenage, whoever fitted them. Tell us the make and model when you book.
What size heat pump does a Stevenage home need?
It depends on the heat loss, not the postcode. As a rough guide, a 3 bedroom semi often needs 6–9 kW, but the room-by-room survey sets the actual size for your Stevenage home.
Do I need new radiators for a heat pump in Stevenage?
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 Stevenage home gives a room-by-room list.
How long does installation take in Stevenage?
Most installations take 2–4 days on site. Jobs with several radiator changes or new pipework take longer, and your quote for a Stevenage home states the expected time.