Sanding & restoration

Gap filling

Reduce draughts and movement with resin or sliver fills applied before sealing.

Before gap filling

After gap filling

Drag the handle to compare before and after.

Sliver & resin methods

Reclaimed pine slivers
Tapered timber wedges cut from antique boards are glued and hammered into wide floorboard gaps (over 4mm) for a permanent wood-on-wood seal.
Resin dust paste
Mixing clean, fine wood dust from your own floor with professional resin binders to fill narrower cracks and joints.
Draught & heat insulation
Sealing open floorboard gaps stops cold under-floor drafts rising, improving room thermal efficiency.

Flex-resistant bonding
Using flexible polyurethane wood adhesives that accommodate normal seasonal wood expansion and contraction.
Flush sand finishing
Sanding the wedges and filled lines completely flush with the floor surface to create a flat, seamless appearance.
Timber colour matching
Selecting matching wood species for slivers so they take stains and seals at the same rate as the floorboards.

Step 1
Deep clean all gaps, vacuuming out accumulated dirt, dust, and old debris.
Step 2
Select timber slivers that match your floor wood, apply wood glue, and tap them into wide gaps.
Step 3
Fill remaining joints and fine cracks with a custom resin and wood dust mixture.
Step 4
Run final flat sand passes to cut the fills flush, prepare the surface, and apply finishes.

Get in touch with our team today for expert advice, a professional on-site assessment, or a free, no-obligation quote tailored to your property.

FAQs

What filler do you use for gaps?

We use resin and wood dust blends, water-based fillers, or flexible fillers depending on gap size and floor type.

Is gap filling suitable for old floorboards?

Yes. Gap filling is especially effective for Victorian and Edwardian floorboards, commonly found in UK homes.

How long does gap filling take?

Gap filling is typically completed within the same timeframe as floor sanding, usually 1-2 days depending on floor condition.

Will the gaps return over time?

Seasonal movement can re-open gaps. We advise the best approach for your floor.

Is gap filling done before finishing?

Yes. We fill after sanding and before final coats for a consistent finish.