Electrics, plumbing and heating
Kitchen underfloor heating
Kitchen underfloor heating warms the room from the floor up, using either electric heating mats or cables laid under the floor finish, or a wet system of water pipes fed by your boiler or heat pump. In a kitchen it is laid across the open floor only, not under fitted units or appliances, and it is controlled by its own thermostat.
When do you need kitchen underfloor heating?
Kitchens often have the least wall space in the house for a radiator, and a new layout can leave nowhere sensible to put one. Underfloor heating leaves the walls clear for units and takes the chill off a tiled floor, which is why it is often added during a refit or when a kitchen-diner floor is relaid. The choice between electric and wet systems depends on the size of the floor, the heating you already have and how much floor height you can spare.
At the survey visit we measure the open floor area, look at the subfloor and the existing heating, and work out how much the new floor build-up will raise the finished level. The heating is laid to the kitchen plan, so it stays clear of where cabinets and appliances will stand. An electrician or heating engineer connects and tests it, then any screed or levelling compound is left to cure before tiles or other finishes go down.
What is included?
- A survey of the subfloor, open floor area and existing heating system
- A heating layout drawn to the kitchen plan, clear of units and appliances
- Insulation boards so the floor responds more quickly when the heating comes on
- Electric mats or cables, or wet pipework connected through a manifold
- A new circuit or fused spur, plus a thermostat with a floor sensor
- Screed, overlay boards or levelling compound, left to cure before finishes
- Door thresholds and plinth heights checked against the new floor build-up
- Plinth heaters fitted under base units where wall space for a radiator is short
How much does kitchen underfloor heating cost?
These are national guide prices including VAT at 20%. Prices are higher in London and the South East and lower in much of the North, Wales, Scotland and Northern Ireland. Choose your area below for a local range.
| Typical project | Guide price |
|---|---|
| Electric underfloor heating, kitchen floorMat or cable system, insulation board and thermostat | £600–£1,500 |
| Wet underfloor heating, kitchen floorPipes, manifold, screed or overlay boards | £1,500–£4,000 |
| Plinth heater fitted under a base unitElectric or hydronic, where wall space is short | £250–£600 |
Guide prices cover the heating system, insulation boards, controls and connection with testing; the floor finish, subfloor repairs, a consumer unit upgrade and any boiler or heat pump changes are priced separately. Your price is confirmed after a free survey visit.
How long does it take?
Typical timescale: 1 to 2 days, then floor finishes once the screed or levelling has cured. The programme for your kitchen is set out in the quote, and depends on the size of the room, what is moving, lead times for units and worktops and, after plastering, drying time.
Do you need permission or building regulations approval?
The rules differ across the UK. Choose your nation:
In England, electric underfloor heating needs a supply and a thermostat. A new dedicated circuit is notifiable under Part P and is certified through a competent person scheme or building control, while a fused spur from an existing circuit is not notifiable in England but must still meet BS 7671 and be certified. A wet system is joined to your existing heating, and any work on a gas boiler is for a Gas Safe registered engineer.
In Wales, connecting electric underfloor heating in a kitchen is notifiable whether it has a new circuit or extends an existing one, because extending a circuit within a kitchen is notifiable under the Welsh rules. The electrician notifies it through a competent person scheme, or it goes through building control, and it must meet BS 7671. Wet systems join the existing heating, and gas boiler work is for Gas Safe registered engineers only.
In Scotland, adding underfloor heating to a house kitchen does not normally need a building warrant, but the electrics must meet building standards 4.5 and 4.6 and BS 7671, and you should receive an Electrical Installation Certificate or Minor Works Certificate. A wet system is connected to your existing boiler or heat pump by a heating engineer, and any work on a gas appliance must be carried out by a Gas Safe registered engineer.
In Northern Ireland, domestic electrical work is not notified in the way it is in England and Wales, so an electric underfloor heating circuit is not registered with the council, but it should be installed, tested and certified to BS 7671. A wet system is joined to the existing boiler or heat pump circuit, and any alteration to a gas boiler or its pipework is for a Gas Safe registered engineer.
What should you think about before starting?
- Heat is laid only across the open floor, not under fitted units or appliances, so the heated area is smaller than the room.
- Check the new floor build-up height early; it affects door thresholds, plinth heights and whether integrated appliances still fit under the worktop.
- Make sure your chosen finish suits underfloor heating; vinyl tiles and engineered wood have maximum surface temperatures set by their manufacturers.
- Insulation boards under an electric system help the floor warm up more quickly, especially when it is laid over a cold concrete slab.
- Allow time for screed or levelling compound to cure before tiles or other finishes go down, as laying too soon risks cracks and lifting.
- If the floor is small and there is no wall space for a radiator, a plinth heater under a base unit may be simpler.
How does the project run?
- Guide price. Use the online guide-price tool or call us for a realistic range for your area
- Free survey visit. We measure the room, check walls, floors and service positions, and look at the plan or delivery
- Itemised written quote. Broken down by stage and trade, with any worktop templating, engineer or approval costs listed
- Fitting in the right order. Strip-out, first fix, units, worktops, second fix and finishing, with the trades booked in sequence
- Final check and handover. A walk-round together, certificates for electrics and gas, and the manufacturers' documents
Questions about kitchen underfloor heating
How much does kitchen underfloor heating cost?
Electric underfloor heating for a kitchen floor is typically £600 to £1,500 including VAT, with the mat or cable, insulation board and thermostat. A wet system with pipes, manifold and a screed or overlay boards is about £1,500 to £4,000. A plinth heater under a base unit, electric or hydronic, is around £250 to £600. Each figure is a national guide price, confirmed after a survey visit.
Is electric or wet underfloor heating better for a kitchen?
It depends on the floor and the heating you already have. Electric mats are thin, quick to lay and suit a single kitchen floor during a refit. Wet systems use warm water from the boiler or heat pump, need more floor depth and a manifold, and make more sense when a larger area, such as a whole kitchen-diner floor, is being relaid at the same time.
Can underfloor heating go under kitchen units?
No, it is not usually laid under fitted units, plinths or appliances. Heat trapped beneath a cabinet or appliance can build up and damage the system or the floor, and it warms nothing useful. The heating layout follows the kitchen plan, covering the open floor, walkways and any dining area, which is why the units are set out before the heating goes down.
Which floor finishes work with underfloor heating?
Porcelain and ceramic tiles work well, because they conduct heat and cope with temperature changes. Luxury vinyl tiles and engineered wood can also be used, but their manufacturers set a maximum surface temperature, so the thermostat needs a floor sensor and a limit set to match. Thick underlays and rugs reduce the heat reaching the room, so check the finish's installation guidance before ordering.
How soon can a floor be tiled over underfloor heating?
It depends on what the heating is laid in. Thin levelling compounds over electric mats are generally ready far sooner than a traditional sand and cement screed over wet pipes, which needs much longer to dry. The product instructions set the curing time, and the heating should be brought up to temperature gradually, following the system's commissioning guidance, rather than used to dry the floor.
Will underfloor heating raise my kitchen floor?
Usually, yes. An electric mat with insulation board and tile adhesive adds a modest height, while a wet system in screed adds more. The new level affects door thresholds, the gap under integrated appliances and plinth heights, so it is measured at the survey and the units are set to suit. Low-profile overlay boards can reduce the rise where height is tight.
Related kitchen services
Where do we carry out kitchen underfloor heating?
We take on kitchen underfloor heating across England, Wales, mainland Scotland and Northern Ireland. Choose your area for local guide prices and the rules that apply there.
England
- Bedfordshire
- Berkshire
- Bristol
- Buckinghamshire
- Cambridgeshire
- Cheshire
- Cornwall
- Cumbria
- Derbyshire
- Devon
- Dorset
- County Durham
- the East Riding of Yorkshire
- East Sussex
- Essex
- Gloucestershire
- Greater London
- Greater Manchester
- Hampshire
- Herefordshire
- Hertfordshire
- the Isle of Wight
- Kent
- Lancashire
- Leicestershire
- Lincolnshire
- Merseyside
- Norfolk
- North Yorkshire
- Northamptonshire
- Northumberland
- Nottinghamshire
- Oxfordshire
- Rutland
- Shropshire
- Somerset
- South Yorkshire
- Staffordshire
- Suffolk
- Surrey
- Tyne and Wear
- Warwickshire
- the West Midlands
- West Sussex
- West Yorkshire
- Wiltshire
- Worcestershire