ThermaSkirt replaces your radiators and your skirting boards with one slim, warm perimeter. This guide shows what to budget per room, how it compares to designer radiators, cast iron and underfloor heating, and the part most heating quotes ignore: the space, and value, you reclaim by losing the radiators altogether.
ThermaSkirt is a premium product, priced in the same bracket as a good designer radiator, not a basic white panel. What you pay depends on the room, not a fixed tariff. Here's what moves the number, and where the pre-packaged kits sit.
Supplied as a complete kit: emitter lengths, feed and return, corners, brackets, covers and fittings. Around 70% of homeowners fit it themselves; an installer adds labour like any radiator swap.
Sized by room and heat demand. Prices include VAT.
BM2 (114mm) and BM3 (170mm) profiles in Cricket White. Made-to-measure and lengths up to 4.5m available to order. Confirm your exact spec with a free quote.
Explore the room kitsBigger rooms and higher heat loss need more metres of emitter, the single biggest factor in the price.
Standard BM2 (114mm) suits most rooms; the taller BM3 (170mm) gives more output where you need it.
Connects to existing pipework like a radiator. Fit it yourself with the guides, or use a registered installer.
Supplied as part of a heat pump install, ThermaSkirt can qualify VAT-free, a 20% saving.
Indicative figures for typical UK rooms, showing the profile, the perimeter run, the likely cost and what ThermaSkirt replaces. Your own quote is based on a heat-loss calculation for your actual room.
Open-plan living5.0 × 3.8 m · ~18 m perimeter · gas or heat pump
The sofa, bookcase and TV unit can sit flat against any wall. No radiator dictating the layout, and even warmth right into the corners.
vs a designer rad that still eats the wall
Kitchen-diner8.0 × 4.0 m · plinth + perimeter · open-plan
A 115mm heated plinth hides beneath the units, so cabinetry and glazing can take every inch of wall. No fighting for a radiator position.
frees wall space for units
Bedroom4.0 × 3.0 m · ~14 m perimeter · silent running
Put the bed or wardrobe against any wall, with no clicks or ticks at night and noticeably less dust in the air. Better sleep, fuller use of the room.
bed goes anywhere
Home office2.5 × 3.0 m · ~11 m perimeter · all-day comfort
Every wall is free for a desk, shelving and storage. Silent on video calls, with even warmth that ends the cold-feet-warm-head problem of an 8-hour day.
maximum desk & shelf wall
Hall & landing3.5 × 1.5 m · awkward, narrow runs · circulation
Hallways are where a bulky radiator is most in the way. ThermaSkirt follows the walls and stairs at skirting depth, keeping the narrowest spaces clear.
clears tight circulation
ThermaSkirt sits in the designer-radiator price bracket, well below a whole-home underfloor retrofit. But it is the only option here that also removes your radiators and replaces your skirting in one go.
| Attribute | ThermaSkirt | Designer radiators | Cast iron radiators | Underfloor heating (wet) |
|---|---|---|---|---|
| Indicative cost | £350 to £1,200 / room | £400 to £1,200+ / room | £500 to £1,500+ / room | £700 to £2,000 / room (retrofit) |
| Wall & floor space | 20mm deep, reclaims 600 to 900mm per radiator removed | Projects into the room; needs furniture clearance | Deep and heavy; dominates the wall | Frees all walls, but adds 75 to 150mm of floor build-up |
| Disruption to fit | 1 to 2 days; connects to existing pipework | Low, like-for-like swap | Low, but very heavy to handle | Major: floors up, screed, drying time |
| Heat pump ready | Yes, designed for 35 to 45°C flow | Often needs over-sizing 2 to 3 times | Poor at low flow temperatures | Yes, but expensive to retrofit |
| Even warmth | <1°C variance (BSRIA tested) | Hot spots near the emitter | Hot spots; slow to respond | Excellent, but slow to respond |
| Replaces skirting too | Yes, one component does both | No | No | No |
Comparison figures are indicative per-room industry ranges for guidance. Radiator costs are typically product-only and rise sharply for larger heat-pump-sized units; underfloor figures are per room for a wet retrofit including floor works, and a whole-home retrofit typically runs to £15,000 to £25,000. ThermaSkirt figures are complete supplied kits and also remove the separate cost of skirting boards.
Because ThermaSkirt does two jobs at once and runs at low temperatures, the real cost of a project is often lower than the headline kit price suggests.
It is your skirting board. You are not buying timber skirting, primer and a joiner on top, so that line disappears.
Unlike underfloor heating, there is no screed, no raised floor, no lost head height and no drying-out delay holding up the job.
Its larger surface area delivers the same heat at lower flow temps, keeping a condensing boiler in its efficient zone without changing the boiler.
On a heat pump, radiators often need to grow 2 to 3 times and may need wall reinforcement. ThermaSkirt spreads output around the perimeter instead.
Bundled into a heat pump installation, it can be supplied VAT-free as part of the renewables package.
Fit it on your boiler now at 50 to 55°C. Switch to a heat pump later and keep it, with no emitter to rip out and replace.
A radiator cannot have furniture pushed against it, so each one quietly sterilises a slice of usable floor. And floor space is exactly what your home is valued on, pound per square metre. Remove the radiators and you reclaim that space. Here's roughly what it is worth where you live.
Average sale price per m² for houses in your region.
A typical 3-bed home has around 8 to 12.
The radiator's footprint plus the furniture-clearance strip beside it, typically 0.2 to 0.3 m². Drag to be as cautious or generous as you like.
Removing 10 radiators in London reclaims about 2.5 m² of usable floor at £7,000/m².
This illustrates the value of the usable space you reclaim at average regional sale prices. It is not a guaranteed increase in sale price, which depends on many factors. Regional £/m² figures are average sale prices for houses from Land Registry data matched to EPC floor areas (housemetric.co.uk, plumplot.co.uk, 2025 to 2026); the prime central London figure is illustrative and varies widely by street. Floor reclaimed counts each radiator's footprint plus furniture clearance; wall space freed uses 600 to 900mm per radiator. Homes are routinely valued on usable floor area, so the space radiators occupy has a real, measurable worth.
Every quote is based on a proper heat-loss calculation for your actual home, not a rule of thumb. Choose whichever route suits you.
Upload an estate agent plan or a rough sketch and answer a few questions. You will get a heat-loss calc, a room-by-room design and a marked-up plan.
Walk our technical team around your rooms on a video call and get a fast, accurate estimate without anyone visiting.
Upload your floor plans today. Our engineers will provide a free, no-obligation itemised manifest.