- 4mm filler: fills gaps up to 3.5mm, comes in a 40m roll
- 8mm filler: fills gaps from 3.5-8mm, comes in a 40m roll
- 12mm filler: fills gaps from 6-12mm, comes in a 10m roll
With no need for adhesive, you can fill gaps in floorboards invisibly, as the colour of the filler mimics the natural shadows between boards. Comes with a free applicator, and will completely seal a range of different size gaps.
You can also use floorboard gap seal to fill gaps elsewhere, such as in sash windows and skirting boards (the gap between floorboards and skirting board can be a source of draughts). To block skirting board draughts, start in one corner of the room and work your way round, cutting the length of seal at the end of each wall. To stop draughts from sash windows, use a blunt knife to push the seal into the gaps between the glass and the frame, and any gaps in the frame itself.
Please note: the floorboard gap seal is stretchy, and as you apply it to the gaps in your floorboards, you will be stretching it as you seal the gaps. Therefore, a 40m roll will be more than enough to seal gaps totalling 40m in length. How much will I save?A 12' by 12' room has around 25 floorboards, with an average gap area of 3.87' – equivalent to permanently leaving a small window open.Filling floorboard gaps could save a household up to £20 per room, per year and save 110kg of carbon. (Source: Energy Saving Trust) Not what you're after?
View all the eco products in our heating and insulation
section, or click on any of the links on the left hand side to see more.
Best buy Great product, easy to use and provides instant cosyness -
great product A well-designed product with an easy to use applicator. Our builder friend says it’s the most effective thing he’s ever seen for sealing floorboard gaps. -
So Easy I couldn't believe how easy this stuff is to use and what an immediate difference it makes to the room. I can't recommend it highly enough. Thanks for finding this for us. Russell - London
easy fit, looks good Easy to fit and looks better than filler. If your floorboards are older than 20 years then buy all three widths; one size certainly doesn't fit all but changing with mid floorboard is simply done. -
so simple and so effecctive i got two thicknesses which worked well. really easy to apply. The thinner the gap the more you can stretch it and the less you need -
Great, once I got the hang of it. Once I got the knack (stretching and twisting it helped) it was quite easy to fit, but physically harder than I expected. It worked best if I cleared/deepened the gaps first, but still hard to get in narrower gaps. Very unobtrusive once in, and has definitely helped make the room warmer. Alice - Oxford
Excellent product This stuff not only really works its really good fun to fit! My son and I had a great time. Sceptical when ordering what seemed to be a rare solution to a problem - delighted when it turned out to be just that! And it really goes a long way, and, once fitted it stays fitted. ric davison - Bath
We offer 2 Delivery options: Standard and Express.
You'll only ever pay one delivery charge.
Standard UK delivery costs from just £3.95 per order
Express UK delivery costs from just £5.95 per order
For orders over £50, Standard UK mainland delivery is free.
The actual delivery cost depends on the size of your order, it'll be shown in the checkout when you add to basket.
We aim to deliver all UK mainland, Channel Islands & Northern Ireland packages within 3-5 working days. Please refer to our delivery page for further details including costs.
We aim to deliver all UK mainland, Channel Islands & Northern Ireland packages within 2 working days or quicker. Please refer to our delivery page for further details including costs.
How We Send Things
We send all orders by Royal Mail, or by courier if it's heavy. Royal Mail deliver Monday to Saturday, couriers deliver Monday to Friday.
Deliveries are usually made between 9am and 5.30pm. A specific time slot cannot be specified with any of our delivery options.
Please be aware that during our sales or promotions, or when there are circumstances beyond our control such as when there's snow on the roads, delivery may take longer.
European Delivery is available to selected countries.
For a full list of all countries that we ship to, and for full details regarding delivery; including delivery time and costs please click here.