TN16 · A233 / M25 J4 · 16 mi from central London · Kitchen Extensions
Side-Return & Wrap Luxury Vinyl Flooring (LVT & SPC) in Biggin Hill
In Biggin Hill (TN16) we typically survey a kitchen extension 8–10 weeks before the floor goes in. That gives the new screed time to cure, the UFH to commission, and us time to plan the level transition from the old kitchen subfloor into the new. Skip this planning and every 1930s semi extension floor has a 5–8mm step at the join — always visible, always regretted.

Level, thickness and step control on Biggin Hill extension floors
The new screed in a Biggin Hill kitchen extension is rarely at the exact height of the existing kitchen subfloor. On our surveys we measure both — target is under 3mm difference across the join. Above 3mm and we ramp with a matched threshold; above 8mm and we level with SLC before fit.
Blending new extension floors with existing kitchens in Biggin Hill
For 1930s semi Biggin Hill kitchens where the retained floor is Victorian solid pine and the extension is a new engineered oak, we design a deliberate transition — solid oak threshold band between old and new. Reads intentional, not retrofit.
Local context
Historic WW2 RAF Biggin Hill airfield
Nearest station
Sevenoaks mainline
Why Biggin Hill clients book us for kitchen extensions
- 10-year workmanship warranty across the whole footprint
- Documented UFH commissioning cycle — before AND after fit
- 10-year workmanship warranty across the whole footprint
- Documented UFH commissioning cycle — before AND after fit
Getting the heating right in a new Biggin Hill extension floor
Glue-down to screed on 1930s semi Biggin Hill extensions gives the best heat response and eliminates drum-resonance on a hollow-sounding floor. On Biggin Hill extensions we glue-down 85%+ of UFH installs.
Kitchen Extensions in Biggin Hill — questions
- How long after the extension is finished can I fit the floor in Biggin Hill?
- New screed needs 1 week per centimetre to dry — a 75mm slab needs 7–10 weeks before flooring is safe. Dehumidification can accelerate; guessing cannot. We CM-test on every Biggin Hill extension fit.
- How long does a full Biggin Hill kitchen extension floor take to fit?
- 5–7 working days for a typical Biggin Hill rear extension (18–25m²) plus retained kitchen, including UFH commissioning, subfloor levelling and silicone perimeter.
- How much does a Biggin Hill kitchen extension floor cost?
- Typical Biggin Hill extension (20–25m² new + 10m² retained kitchen) in engineered oak with UFH: £3,800–£6,400 fitted. In LVT: £2,200–£3,900. Both include commissioning and silicone perimeter.
- How do I match the level between my Biggin Hill extension and existing kitchen?
- Under 3mm difference we ramp with matched threshold. Above 3mm we level with self-levelling compound before fit. We measure both levels on the survey and price accordingly.
- Can I have engineered wood in a Biggin Hill extension over UFH?
- Yes — engineered wood is the ideal spec for Biggin Hill extensions over UFH. Certified UFH-compatible ranges, glued down to screed, run at up to 27°C surface temperature. Solid wood cannot go here.
- Do we need to remove existing kitchen units on a Biggin Hill extension floor job?
- Usually no — we fit up to the plinth line with colour-matched beading. Only jobs where the kitchen is being replaced anyway get full floor-under-cabinets install.
Kitchen-extension Luxury Vinyl Flooring (LVT & SPC) in Biggin Hill — planned as one floor
Own crew, level-matched, UFH-commissioned, batch-supplied.
A Biggin Hill kitchen extension floor that ignores the level transition or the UFH cycle fails at exactly those points, on exactly the schedule you'd predict.