Uneven subfloor in Rosyth? Fix it before the new floor goes down
Uneven subfloors are the single most common reason cheap flooring fails inside two years — and Rosyth's shrinking joists and historic settlement are all classic culprits. We survey the floor properly, latex-level or sister-joist as required, then quote the finished floor — never the other way round.
Common across KY11 — mixed-era housing here shows this pattern most often.
£8–£16 per sqm for latex levelling; joist repair from £180
1 day for levelling + 24hr cure, before the finish floor goes down
Specialist fitters only
Fitting hard flooring over an uneven subfloor is the #1 cause of premature failure — most warranties are void if it's out of spec.
Symptoms we look for
Match two or more of these and it's very likely uneven subfloor.
- 01New laminate or LVT clicks apart at the joints within months
- 02A marble rolls visibly across the floor
- 03Uneven wear stripes across an old carpet
- 04Doors that catch or scrape in one corner of the room
- 05Skirting boards showing a widening gap along one wall
What causes it
Screed poured off-level in 1970s–90s builds
Sagging joists in period properties
Localised damp or historic settlement
Old thermoplastic tile beds still in place under carpet
Affects: Concrete slab · Screed · Chipboard deck · Original pine boards
"Not sure if it's really uneven subfloor? We diagnose in Rosyth for free — no obligation to fix with us."
How we fix it
- 1
Survey with a 2m straight-edge and long spirit level, mapping the low points
- 2
Grind or scarify high spots on concrete/screed
- 3
Latex self-levelling compound (SLC) to bring the whole floor within tolerance
- 4
For timber decks — sister-joist or over-board with 18mm ply as required
- 5
Only then quote the finished floor — LVT, laminate, engineered wood or carpet
Where DIY goes wrong
Buying the wrong SLC grade — some need primer, some crack on flex
Levelling without addressing the underlying cause (damp, joist rot)
ROSYTH PROOF
Recent Rosyth homeowners
"Was quoted a full re-lay by someone else in KY11 — these guys sorted it as a repair for a fraction."
— Rosyth homeowner
"Turned up in Rosyth when they said, did the job in one visit, cleaned up after themselves."
— Rosyth homeowner
"Was quoted a full re-lay by someone else in KY11 — these guys sorted it as a repair for a fraction."
— Rosyth homeowner
Uneven subfloor in Rosyth — FAQs
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Fix uneven subfloor in Rosyth — properly, first time.
KY11 · diagnostic visit · fixed quote · own fitters