- Area
- Essex
- Postcode district
- CM6
- Nation
- England
- Nearby
- Braintree, Chelmsford, Bishop's Stortford
Homes in Great Dunmow and the wider CM6 district can book a free survey for installation enquiries. Nearby we also cover Braintree (about 8 miles east) and Chelmsford.
Heat pump services in Great Dunmow
All services in Great Dunmow:
Grants and rules for heat pumps in England
Homes in Great Dunmow 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.
Heat pump guide prices in Great Dunmow
Guide prices for Great Dunmow and the rest of Essex 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 | £9,800–£12,900 | £2,300–£5,400 |
| 2–3 bedroom terrace or semi | 5–7 kW | £10,800–£13,900 | £3,300–£6,400 |
| 3 bedroom semi or small detached | 6–9 kW | £12,350–£15,950 | £4,850–£8,450 |
| 4 bedroom detached | 8–12 kW | £14,400–£18,550 | £6,900–£11,050 |
| 5+ bedroom or larger older house | 11–16 kW | £17,000–£23,200 | £9,500–£15,700 |
Installed, inc VAT: unit, cylinder, controls, minor pipework and commissioning.
Short winter days in Great Dunmow and what they mean
Great Dunmow has about 7 hours 46 minutes of daylight at midwinter and 16 hours 43 minutes at midsummer. That swing matters if you pair a heat pump with solar panels: summer generation can cover much of the hot water, winter generation far less.
Heat pumps in Great Dunmow: questions
Do I need new radiators for a heat pump in Great Dunmow?
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 Great Dunmow home gives a room-by-room list.
Can you service a heat pump in Great Dunmow that someone else installed?
Yes. We arrange servicing and repairs for most air source heat pumps in Great Dunmow, whoever fitted them. Tell us the make and model when you book.
What size heat pump does a Great Dunmow 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 Great Dunmow home.
How soon can you survey a home in Great Dunmow?
Survey dates depend on how busy installers are in Essex. We offer the next available dates when you enquire and confirm them in writing.