Ply overlay subfloors across SE9/BR7
Suspended timber floors across Fairmount Victorian and Edwardian homes get plywood overlay before any decorative floor. It's the alternative to a full screed and often the right answer for a first-floor room.
What plywood overlay subfloor prep in Mottingham actually involves
Suspended timber floors across Fairmount Victorian and Edwardian homes get plywood overlay before any decorative floor. It's the alternative to a full screed and often the right answer for a first-floor room.
Cottage estates often have thin chipboard upstairs — checked for deflection before laying laminate or LVT.
Before we quote a subfloor prep job in Mottingham
- Stair nosings
Older Mottingham stairs often have shallow treads — we re-cut grippers rather than force a standard kit.
- Doorway transitions
Most 1920s cottage-estate terraces doorways here need a bevelled bar rather than a Z-bar to clear the carpet next door.
- Underlay choice
8mm crumb is the usual call for Mottingham bedrooms; 10mm PU on stairs to stop bounce.
- 6mm or 12mm ply overlay for old floorboard subfloors
- Ring-shank nailed on 150mm grid — no squeaks
- Perfect base for LVT, laminate, vinyl and wood
- Alternative to full screed on suspended floors
Bottom line: LVT over old floorboards is a mistake. Ply overlay first, LVT second.
"Ply overlay across a 1920s cottage-estate terraces and post-war infill first floor in Fairmount — squeaks gone, LVT laid flat." — Mottingham customer
Postcodes: SE9/BR7 · Routes: the A20 · Common build: 1920s cottage-estate terraces.
Covering Fairmount, Grove Park border, Coldharbour.
Plywood Overlay Subfloor Prep jobs we've finished nearby



Plywood Overlay Subfloor Prep in Mottingham — common questions
Yes — ply overlay is fit-ready the same day. No moisture cure required (unlike latex screed).
6–12mm plus underlay for the new decorative floor — usually 10–20mm total. Doors may need trimming, we factor that in on the Mottingham visit.
Yes — ring-shank nails on 150mm grid pin the ply and the boards below to the joists. Standard on every SE9/BR7 overlay job.
6mm for most residential rooms; 12mm where joists are wide or boards are particularly uneven. Standard 6mm on Victorian bedroom fits in Fairmount.
