UFH GUIDE · LEWES
Luxury vinyl flooring over underfloor heating in Lewes
UFH and wood flooring is where most Lewes installs go wrong, because the rules differ from manufacturer to manufacturer and the consequences (cupping, gapping, delamination) only show up months later. Lewes is full of timber-framed listed buildings, so any new floor has to be installed without damaging original joists — usually floating with no fixings into structural timber. This page covers exactly how we fit luxury vinyl flooring over UFH for Lewes homes — temperature ramps, underlay tog, and which products are actually rated for the heat output you've got.
What matters for luxury vinyl flooring in Lewes
- Maximum surface temperature for any wood floor is 27°C — Lewes new-build manifolds often run hotter and need a thermostat cap.
- Underlay tog should sit under 0.5 — anything thicker insulates the heat back into the screed instead of the room.
- Screed must read below 1.8% CM moisture before any wood goes down. We bring our own meter to every Lewes survey.
- A 14-day temperature ramp (start cold, +5°C per day) protects the boards and the joints during commissioning.
- LVT and SPC need a dead-flat subfloor — any dip over 3mm telegraphs through within months, so latex screeding is usually included in our quotes.
Typical Lewes use cases
Wet UFH on screed in Lewes
Default spec: 14–15mm engineered oak, glue-down, low-tog underlay or fully bonded.
Electric UFH retrofit
Lower output — most luxury vinyl specs are still safe, but we check the wattage per m² before quoting.
Lewes kitchen extension
UFH in the new section, joist construction in the old — we plan an expansion break at the transition.
Nearby areas we cover
We fit luxury vinyl flooring across Lewes and the surrounding area, including:
Lewes is part of our wider Sussex coverage — see all services and areas there.
Lewes FAQs
- Can I fit solid wood over UFH in Lewes?
- We don't recommend it. Solid moves too much with temperature swing — engineered oak gives you the same look with proper stability.
- What's the right underlay for UFH in a Lewes flat?
- Something under 0.5 tog, ideally a fully bonded adhesive. We use Sika Bond or F. Ball depending on the screed.
- How long after the UFH is commissioned can you fit?
- Minimum 14 days after final screed temperature, with documented moisture readings under 1.8% CM.
- Do you cover Lewes for UFH installs?
- Yes — and the surrounding Ringmer, Kingston, Falmer area. UFH installs are one of our most common Lewes jobs.
Summary
Luxury vinyl over UFH in Lewes is fine — but only with the right spec, the right underlay, and the right ramp. We do all three in writing before fitting.
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