Fill Floorboard Gaps

Buy Gapseal Floorboard Gap Insulation
Price per 40m Roll
1-4 rolls    £19.99 (inc VAT - per roll)
5-9 rolls    £18.99 (inc VAT - per roll)
10+ rolls   £17.99 (inc VAT - per roll)
Sample     £4.99   (inc VAT)
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Colour Information

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Gapseal is available in two colours for best match to your floorboards.

  • Camo-Fill™ for pine and darker floors
  • Semi-Transparent for very light floors
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Where and what for ?

Gapseal floor filler is used to fill the gaps between floorboards. Once inserted it is invisible and it provides an ideal solution to sealing floorboards against draughts. It can also be used to fill the gap between floorboards and skirting boards preventing stains on the edges of carpets.  It can even be used to provide insulation to floorboards that are under a carpet.

Gapseal protects your floors against draughts

Which Colour ?

Gapseal is available in two colours for best match to your wooden floors.

  • Camo-Fill™ for pine floors and darker floorboards 
  • Semi-Transparent for very light timber floors

Camo-Fill™ colour is a result of extensive research and after evaluating over 100 different colours we decided that Camo-Fill™ was the perfect match to the natural shadow that appears in floorboard gaps. 

Gapseal Camo-Fill cannot be seen when fitted

How ?

The product is invisible once inserted. It sits up to 10mm below the surface of the floor and can rest on the joists below.  Because of the unique shape and design of Gapseal it changes its profile to accommodate expansion and contraction of timber floors, therefore making it an ideal floor filler. Alternative solutions such as papier mache, wood filler, or silicon cannot tolerate this expansion and contraction and whilst being time consuming and messy to fit, will not last more than 1 year typically.

How Fast ?

Gapseal is quick, clean and easy to fit.  It requires no DIY skills whatsoever and the only tools required to fill floorboard gaps are a pair of scissors and an old credit card or similar plastic implement. Typically, a 12 foot x 12 foot room can have floorboards sealed in less than an hour, and will last a lifetime, compared to alternatives, which take many hours and only last a very short time.

Can I take it out ?

Gapseal can easily be extracted from the floor in case you need to access the space below the floorboards, and then can be quickly re-inserted to re-seal the timber floor and once again insulate the room against draughts.

How safe is it ?

Gapseal is guaranteed to be free from manufacturing defects for a period of 5 years.

Adequate ventilation is required in all rooms, so a small area of the floor should be left un-sealed.  This is especially true where an appliance such as a gas fire is in the room.  If in any doubt regarding the safety of insulating your room with a gas appliance fitted we would recommend the consultation of a CORGI registered plumber and the fitting of a carbon monoxide detector


Gapseal Semi-Transparent examples.
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