Wet underfloor heating is a network of plastic pipes laid under the floor that carries warm water from the heat pump and turns the whole floor into a large, low-temperature radiator. Because the heating surface is so big, it can keep a room comfortable with water at around 35–40°C, which is the range where heat pumps typically work most efficiently.
Older houses around Essex with suspended timber floors can often take underfloor pipes between the joists. Homeowners in Essex and across Essex can mix underfloor heating downstairs with radiators upstairs on one heat pump. Every underfloor design for Essex starts with the floor finish you plan to lay, from tiles to carpet.
Who it suits
- Rooms where wall space for radiators is scarce
- Ground floors being dug out or relaid as part of wider building work
- Homeowners who want even, gentle warmth with no radiators on show
- Extensions, especially open-plan kitchen-diners with large glazed areas
Grants and rules for heat pumps in England
Homes in Essex 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.
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.
Underfloor heating with heat pumps prices in Essex
The ranges below are typical installed prices for homes in Essex, including VAT. A survey sets the exact figure, because two similar-looking houses in Essex can need quite different radiators and pipework.
| Work | Guide price |
|---|---|
| Wet underfloor heating, one room | £1,550–£3,600 |
| Wet underfloor heating, whole ground floor | £5,150–£15,450 |
Installed, inc VAT. Floor finishes and screed drying time are confirmed at survey.
Towns we cover in Essex
We cover 22 towns in Essex for underfloor heating with a heat pump. Each links to local guide prices and the grant position for England.
| Town | Postcode district | Nearest town | Midwinter daylight |
|---|---|---|---|
| Southend-on-Sea | SS1 | Rayleigh | 7 h 49 min |
| Basildon | SS16 | Stanford-le-Hope | 7 h 49 min |
| Colchester | CO1 | Coggeshall | 7 h 46 min |
| Chelmsford | CM1 | Billericay | 7 h 47 min |
| Harlow | CM20 | Hoddesdon | 7 h 47 min |
| Braintree | CM7 | Coggeshall | 7 h 46 min |
| Clacton-on-Sea | CO15 | Harwich | 7 h 47 min |
| South Benfleet | SS7 | Canvey Island | 7 h 49 min |
| Canvey Island | SS8 | South Benfleet | 7 h 49 min |
| Billericay | CM12 | Basildon | 7 h 48 min |
| Rayleigh | SS6 | South Benfleet | 7 h 49 min |
| Stanford-le-Hope | SS17 | Basildon | 7 h 49 min |
| Wickford | SS12 | Rayleigh | 7 h 48 min |
| Witham | CM8 | Maldon | 7 h 46 min |
| Maldon | CM9 | Witham | 7 h 47 min |
| Harwich | CO12 | Felixstowe | 7 h 45 min |
| Saffron Walden | CB10 | Great Dunmow | 7 h 44 min |
| Burnham-on-Crouch | CM0 | Southend-on-Sea | 7 h 48 min |
| Coggeshall | CM8 | Witham | 7 h 46 min |
| Great Dunmow | CM6 | Braintree | 7 h 46 min |
| Halstead | CO9 | Coggeshall | 7 h 45 min |
| Loughton | IG10 | Chingford | 7 h 48 min |
Underfloor heating with a heat pump questions
How long does a screed floor take before I can use the heating?
Screed needs to dry before the heating is used at full temperature and before most floor finishes are laid. Drying time depends on the screed type, depth and conditions, from around a week for some liquid screeds to several weeks or more for traditional sand and cement. The heating is then brought up gradually over several days to avoid cracking.
How much does underfloor heating cost with a heat pump?
Wet underfloor heating for a whole ground floor has a guide price of £5,000–£15,000, installed and including VAT, and a single room has a guide price of £1,500–£3,500. The spread reflects floor type, area, whether an overlay or screed system is used and how much floor preparation is needed. Your written quote fixes the price after the survey.
Is underfloor heating better than radiators with a heat pump?
Underfloor heating usually allows a lower flow temperature than radiators, which helps a heat pump run efficiently. That does not make radiators a poor choice: correctly sized radiators also work well, and they are far less disruptive to fit in existing rooms. Many homes use underfloor heating in an extension or on the ground floor and radiators elsewhere.
Can I put carpet over underfloor heating?
Yes, as long as the carpet and underlay together have a low tog rating, which measures how much they resist heat. For heat pump systems a combined figure of around 1.5 tog or less is a common target. Thick carpet on heavy underlay can cut output noticeably, so rooms with carpet may need closer pipe spacing.