Flooring over underfloor heating in Sidcup
Most Sidcup UFH complaints come from the flooring, not the boiler. A 12mm plank with 3mm foam is doing the wrong job. We use 4–5mm LVT or 8mm UFH-rated laminate over ≤1.0 tog underlay so heat reaches Mostly 1930s, with newer flats around the station feet — not the subfloor.
What flooring over underfloor heating in Sidcup actually involves
Most Sidcup UFH complaints come from the flooring, not the boiler. A 12mm plank with 3mm foam is doing the wrong job. We use 4–5mm LVT or 8mm UFH-rated laminate over ≤1.0 tog underlay so heat reaches Mostly 1930s, with newer flats around the station feet — not the subfloor.
1930s pine boards over joists — usually need a 6mm ply overlay before LVT or vinyl.
- Only UFH-rated LVT, laminate and engineered wood used
- Underlay kept below 1.0 tog so heat actually reaches the room
- Perimeter expansion gap sized for full UFH cycle
- Manifold and probes protected during fit
Three things that decide a lvt fit in Sidcup
- Subfloor flatness
LVT shows every bump — 1930s bay-fronted semis subfloors in Sidcup almost always need ply or self-levelling screed first.
- Door undercut
We trim doors on the day so they swing cleanly over glue-down LVT — no scraping, no callbacks.
- Pattern direction
Plank run follows the longest sightline; in narrow Sidcup hallways that means front-door to kitchen.
"Kitchen extension in Sidcup Hill, wet UFH under 4mm LVT — floor genuinely warm within a day." — Sidcup customer
Recap — LVT, laminate and engineered wood fitted over UFH across DA14/DA15, with warranty-safe adhesives and expansion gaps.
Postcodes: DA14/DA15 · Routes: the A20 · Common build: 1930s bay-fronted semis.
Covering Sidcup Hill, Halfway Street, New Eltham border.
Flooring Over Underfloor Heating jobs we've finished nearby
Flooring Over Underfloor Heating in Sidcup — common questions
Yes — dropped to 15–18°C for 48 hours before, off during the fit, then ramped back up 2°C per day. We give you the schedule in writing after the Sidcup survey.
55°C at the plank, 27°C at the floor surface — the industry standard. Above that, planks cup and joints open. We commission with your plumber so we know the ramp-up.
For heat transfer, yes — 4–5mm LVT sits directly on the screed with a very low thermal resistance. Most new Sidcup kitchens over UFH now go LVT for that reason.
Yes — but only UFH-rated boards (usually 8mm HDF core, marked on the pack) with an underlay under 1.0 tog. Standard 12mm click laminate will insulate your UFH and cost you heat.