Gap Filling


We set up our business in 1995. We are Members of The Guild of Master Craftsmen and take pride in our work. These days we take extra care when it comes to health and safety.

Exceptional expertise

Our specialist teams, have an impressive breadth of experience, offering you the most professional service in our industry.

Our heritage

We draw on over 30 years of Floor Sanding experience, successfully managing and expanding our business as well as our customer base for the repeat business.

Our Promise

To deliver a 1st class service that remains highly competitive, we know we must constantly evolve and develop our products and services to stay ahead of our competitors.

No hidden extras with our quotes

We have qualified and experienced estimators that cover the south east of England. Our services teams work from our head office in London.


Because we are part of the “FLOOR SANDER HIRE GROUP”, our buying power and insight to the latest up to date machinery is what keeps us apart from our competitors. We boast more professional machinery than any other company in the UK.


wood floor Gap filling Services London & Home Counties

Gap filling not only makes your floor look more beautiful again but of course, it also helps keep out those naughty draughts.

We have been serving customers since 1995 in London and the Home Counties. We offer Repairs services and will come to your home or premises to do a free consultation.


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gap Filling's faqs

If you want to eliminate draughts, fill in the gaps between the floors. Since most houses have air bricks in the bottom floor, air circulates under the floor of your house.

Draughts form when an old floor covering is removed. Filling the cracks not only eliminates draughts, but can also be used for aesthetic purposes on upper floors, as a filled floor creates a uniform visual impression.

We usually use small strips of wood fastened between the flooring and sanded flush with the boards. When the gaps are quite narrow, we can utilise putty
Fill the gap with wood filler if it is less than 1 cm wide. Fill any gaps larger than 1 cm with string or wood shavings before applying the wood filler. To properly fill the gap or hole, use a spatula that is larger than the gap or hole.
Fill the holes directly and generously with the filler, then smooth the surface with a spatula. Allow to air dry. After the filler has dried, use fine sandpaper to remove any excess from the surface.
In this case, a wood filler or wood paste that matches the colour of the parquet is used. It is applied directly to the hole or crack to be filled with a spatula, as directed, and smoothed well.
Wood glue can be used instead, but please note that white vinyl glue must be used.

Gap Filling Restoration

Gap filling restoration is the process of using resin or solid strips to fill small gaps that have developed in between wood floorboards. Over time, poorly acclimatised planks and/or moisture and temperature fluctuations will result in expansion and contraction of wood flooring, causing gaps to arise. Generally, gap filling is an optional process. The key advantages to implementing this procedure include draught eliminating, prevention of dirt build-up and tightening the existing flooring.

As part of the installation and restoration process, Floor Sanding can provide expert, professional gap-filling services to give your floors a seamless finish. Below we have created a short guide to explain the key elements of the process.

Types of Gap Filling

1. Resin Filling

Resin filling is ideal for filling wooden floorboards that have been installed with a glue adhesive and have gaps no wider than 3mm. This process involves combining a clear resin filler with sawdust gathered from the floor sanding procedure.

Ideally, the sawdust will be a close or exact colour match to the floorboards and the paste should have an easily trowelled consistency. To apply the resin, a spatula is recommended.

2. draughtex

DraughtEx is an expanding seal which is pushed to the bottom of the floor. It will still show the gaps but will give that nice old style look.

3. draughtex with resin

We recommend DraughtEx with resin filling on top instead of the wooden strips. The wooden strips are a third option and only for very large gaps certainly over six millimetres.

4. Solid Wood Strip

For jobs of over 6mm, filling the gaps with wood slivers is a solution. This process involves using high-strength wood adhesive glue to fix the solid wood strips in the gaps. Notably, it is important to ensure the wood strips match the colour of the floorboards and that they are placed over a plywood sub-floor or directly on a joist.


A maintenance regime is essential to uphold the beauty and integrity of your solid wood floors. In general, potent cleaning agents such as bleach must be avoided to prevent removal of the finish coating. A detergent specifically formulated for oiledlacquered and unfinished flooring is recommended.

Given that solid wood flooring is incompatible with moisture, a dry microfibre mop is advisable. Moreover, it is essential to avoid use of abrasive materials e.g., scouring pads,  to prevent the floor from becoming scratched. A brilliant way of protecting hardwood flooring from damage is to add a wax coating. This can be reapplied if and when needed.


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floor sanding London Hallway before-1 BEFORE
floor sanding London Hallway After 1-1 AFTER