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.
We coordinate with builders working in the Isle of Wight so underfloor pipes are laid and tested before the screed goes down. For homes in the Isle of Wight with solid ground floors, a low-profile overlay system can avoid breaking up the existing floor. Homeowners in the Isle of Wight and across the Isle of Wight can mix underfloor heating downstairs with radiators upstairs on one heat pump.
Who it suits
- Extensions, especially open-plan kitchen-diners with large glazed areas
- Homeowners who want even, gentle warmth with no radiators on show
- Rooms where wall space for radiators is scarce
- Self-builds and new floors where insulation and screed are going in anyway
Grants and rules for heat pumps in England
Homes in the Isle of Wight 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.
Underfloor heating with heat pumps prices in the Isle of Wight
The ranges below are typical installed prices for homes in the Isle of Wight, including VAT. A survey sets the exact figure, because two similar-looking houses in the Isle of Wight can need quite different radiators and pipework.
| Work | Guide price |
|---|---|
| Wet underfloor heating, one room | £1,600–£3,700 |
| Wet underfloor heating, whole ground floor | £5,300–£15,900 |
Installed, inc VAT. Floor finishes and screed drying time are confirmed at survey.
Towns we cover in the Isle of Wight
We cover 6 towns in the Isle of Wight 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 |
|---|---|---|---|
| Newport (Isle of Wight) | PO30 | Cowes | 7 h 57 min |
| Ryde | PO33 | Sandown | 7 h 57 min |
| Cowes | PO31 | Newport (Isle of Wight) | 7 h 57 min |
| Sandown | PO36 | Shanklin | 7 h 58 min |
| Shanklin | PO37 | Sandown | 7 h 58 min |
| Ventnor | PO38 | Shanklin | 7 h 59 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.
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.
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.