How to Fix Draughty Floorboards

How to Fix Draughty Floorboards

1. Dust & Resin Mix

How to fix draughty floorboards, The easiest and most common method for filling in flooring gaps is through the use of a dust and resin mix.

This method requires the use of dust created during the wood floor sanding process mixed with a resin, which forms a paste. Much like you would when you are grouting tiles, you would work this dust and resin mix in between the floorboards.

Once this mix is dry, our floor restoration team will sand the mixture down to make it look natural. This method is only recommended on gaps that are no more than 3 mm wide.


It is important to note that there will be a loss of this resin mix over time as your floor moves. This is one of the reasons why we consider this method to be one of the least effective gap filling methods, however, it is the most cost effective.

2. Solid Wood Fillet Strips

Filling the gaps with strips of solid wood is considered to be the most effective and reliable method for filling wood flooring gaps.

This method is frequently used on softwood or pine floorboards and we regularly use reclaimed pine strips to fill such gaps. It is a straightforward process which consists of cutting the strips to the required size and covering them with PVA glue before placing them into the gaps. The strips are allowed to dry overnight and the next day they are chiseled and sanded down to the same level as the surrounding floorboards to give them that nice finishing look.


As mentioned, this is a more permanent solution, as the wooden strips tend to expand and contract with your flooring, which leads to fewer problems over time. It is usually worth the extra effort to utilize this gap filling method.

3. Acrylic Filler

Another popular method for filling those unsightly gaps in your wooden floor is to use acrylic mastic filler, which can usually be picked up in any hardware store in London.

You need to make sure you choose the right colour for your floor. As you begin putting this filler in the gaps, you will quickly notice that a little bit of acrylic filler will go a long way, so don’t go crazy with it.

When you’ve finished filling the gaps, it is important to clean up the excess filler with wood filler cleaner. This process is cost effective and quite easy to implement, however, much like the dust and resin mix option, this is not a permanent solution. Over time, you will lose the filler and need to re-do it.


Filling gaps in wood floor can be approached in many ways. You can find many off-the-shelf wood fillers, that are perfect for fixing minor damages and wood chipping, but are not suitable for filling gaps in floorboards. Any chemical filler will eventually crack and fall out if applied into a bigger gap.

There are also some gap filling products available on the market involving rubber or foil strips for inserting between floorboards. Although it sounds nice and easy, this too is not a perfect way of filling floorboards. In most floors you can find a lot of dirt and bits of varnish between floorboards, making it really difficult to insert a strip of rubber or plastic. And even if you manage to do that, they would not fit the gap very well, failing to solve a problem of draughty floorboards.

Contact Us

For further information on How to fix draughty floorboards don’t hesitate to give us a call on 0800 9174276. A member of our team will be more than happy to answer any questions or queries you may have.

on August 15 | by

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