Properly designed wet UFH delivers more even comfort, more usable wall space and lower running temperatures than radiators. We design the system, fit the pipework, wire the manifold and commission it — one trade, one accountability.
Polypipe Pro Installer · JG Speedfit experienced · Full pressure-tested commissioning
Yes
Local to Coventry CV2
Before any work
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Full UFH design (heat-loss calculation, pipe spacing, loop length, manifold sizing), manifold supply and install, PEX-AL-PEX pipework laid to design layout, pressure testing, screed coordination (where applicable), control wiring (per-room thermostats, actuator heads, wiring centre), boiler/heat pump interface, full commissioning and balancing.
New-build self-builders, extensions and garden rooms, full kitchen-diner refits where the floor is coming up anyway, bathroom refits where UFH replaces a towel rail, and retrofit projects using low-profile overlay systems where lifting the existing floor isn't possible.
Wherever you have a finished floor going down anyway, where you want to lose radiators from a feature wall, where you have a heat pump (UFH runs at lower flow temps, ideal for ASHP/GSHP), or where the room is large enough that radiators would have to be either oversized or numerous.
UFH is forgiving in design and brutal in installation. A single nail through a pipe during floor finishing is a £2,000+ chase-and-repair job through a finished floor. Pipe spacing, loop balance, screed compatibility and commissioning all have to be right — there's no second chance once the floor is down.
UFH installation mistakes are buried under your floor — and that's exactly why they hurt.
Undersized pipework or wrong loop spacing creates strips of warm and cold floor — particularly visible on hard floors. Unfixable without lifting the screed.
If the pipework is laid without proper pressure-on commissioning, a puncture from a flooring fixing isn't noticed until first heat-up — by which point the floor is down.
Wrong control strategy (room stats fighting weather compensation, oversized loops, no weather comp at all) makes UFH expensive to run instead of cheap.
Cheap manifolds and low-grade actuators fail at 5–7 years. Replacement is rarely just a part swap — usually a flooring lift.
Room-by-room heat loss to BS EN 12831. Floor finish thermal resistance factored in (engineered oak ≠ porcelain tile). Pipe spacing and loop count designed to suit.
Manifold zoned per room or per circuit. Mixing valve for combi/system boiler interface, or direct connection for heat pump. Wiring centre and per-room stats specified.
PEX-AL-PEX clipped to insulation panels (or staple-fixed to floor build-up). Pipe spacing to design, every loop length within ±5%. Pressure-tested at 6 bar before screed/floor build-up starts.
Pressure maintained on the pipework throughout screeding or floor finishing — any puncture is found immediately, not after the floor is down.
Manifold flow rates set per loop to match design heat output. Each room reaches setpoint at the same time. Documented commissioning sheet handed over.
No cold corners. No 'hot above the radiator, cold across the room' gradient.
UFH runs comfortable at 35–45°C — perfect for condensing boilers and ideal for heat pumps.
Heat-pump + UFH combinations are 25–40% cheaper to run than radiators on the same heat source.
No radiators. No TRV obstructions. Furniture goes where furniture should go.
No water flow noise. No 'clicking radiator' as it warms up. No drafts from convection.
Wet UFH consistently appears in EPC improvement recommendations and adds tangibly to property appeal at sale.
Wet UFH varies enormously by floor build-up — and the install method has to match. Here's what we typically work with across Coventry projects.
Discuss your projectSolid floors with EPS insulation and 65–75mm sand/cement screed — typical new-build/extension. Suspended timber floors with spreader plates between joists — common retrofit. Low-profile overlay systems (12–25mm) like Polypipe Overlay or Robbens Lo-Pro — used where existing floor height can't be raised significantly. Liquid-screed (anhydrite) systems — fastest dry time and best thermal contact with pipework.
Polypipe Underfloor (PEX-AL-PEX 16mm) — our most-used system, excellent UK availability and strong manufacturer support. JG Speedfit Underfloor — strong on retrofit/overlay solutions. Uponor Q&E — premium new-build choice with industry-leading warranty. All manifolds with flow meters per circuit, isolation valves and visible flow indicators.
Per-room wired or wireless thermostats (Salus, Heatmiser, Honeywell). Wiring centre matched to actuator count. Weather compensation on the heat source where supported (Vaillant ecoTEC plus, Worcester Greenstar with EMS). Smart integration with Hive / Nest where required, though dedicated UFH controllers usually outperform smart-stat retrofits.
Combi/system boilers paired with UFH require a mixing valve to drop flow temp from boiler output (typically 70–75°C) to UFH design temp (35–45°C). Heat pumps pair directly — UFH is the ideal emitter for ASHP/GSHP and required for optimal coefficient of performance.
Commercial UFH (offices, retail) typically uses larger 20mm or 25mm pipework on wider spacings, with zoned manifolds per floor or per tenancy. We cover small commercial (under 200m² heated area) routinely; larger projects we co-deliver with a commercial specialist.
Most retrofit projects use low-profile overlay (15–25mm) to avoid lifting the existing floor. Trade-off is slightly slower response than screeded UFH but vastly less disruption. We honestly assess whether retrofit UFH or alternative solutions (e.g. low-profile radiators) is the right answer for your property.
Coventry, CV2 & the wider West Midlands.
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Local plumber · Coventry CV2 · Open 24/7
