Draughts around the house are one of the major reasons why many rooms can feel cold and uncomfortable.

Sealing gaps in window frames around your home, can make a huge difference. Not only does this increase comfort, but it is also a cost-effective way to cut down on energy costs.

Beginner Intermediate Advanced
2 Hours

What You Need

How To Guide

  1. Check for air leaks
    Light a candle around the windows and exterior doors that you think have air leaks. If the flame dances around, there is air flow and you have a leak
  2. Clean area to be sealed
    To ensure proper adhesion, remove any old caulk and paint. Make sure the area is free from dust, grease and loose/flaking paint.
  3. Prep the caulking gun
    Cut the seal at the top of the Selleys No More Gaps -Coloured Caulk  or Selleys No More Gaps Exterior (if the gap is outside) using a knife or secateurs. Cut the nozzle at a 45° angle with an opening that is approximately the size of the hole being filled. Fit the nozzle to the top of the cartridge and insert it into the caulking gun by pushing the base of the canister into the gun.
  4. Caulk the leak
    Apply steady pressure to the caulking gun trigger to force the gap filler into the area that causes the leak. Move the nozzle along the joint in one smooth action. At the end of each section wipe excess product away with a finger, spoon or spatula dipped in a 50/50 mix of water and detergent.
  5. Finish
    Clean up the excess sealant with a damp cloth immediately. Allow it to cure for about 30 minutes before painting.


Handy Tips

  • For a neater finish and easier clean up, you can tape both sides of the gap before applying the product. 
  • Use a putty knife or paint stripper such as Selleys Kwik Strip to remove old paint.
  • For a good seal, apply the gap filler on the frames on the inside and the outside of the house.
  • For gaps greater than 2cm use an expanding foam such as Selleys Space Invader


Selleys No More Gaps Coloured Gaps

Selleys No More Gaps Coloured Gaps is a flexible gap filler available in a range of modern colours, to fill those unsightly gaps and cracks around the home and take away the need to paint.

Selleys No More Gaps Multipurpose

Selleys No More Gaps Multipurpose gap filler delivers a smooth finish and because of its superior flexibility and low shrinkage, those unsightly gaps and cracks won’t re-appear.

Selleys Kwik Strip

Selleys Kwik Strip is a rapid action solvent-based paint and varnish remover. It is in a heavily bodied form for easy application on vertical surfaces.

How to Guides

How To Fill Gaps Around Windows

Draughts coming through gaps between window frames are one of the major reasons why many rooms can feel cold and uncomfortable. Fixing this is easy!

Filling Cracks in Doors and Trims

A crack in your doors or skirting boards doesn't spell the end for them. Here is a simple 3 step solution to make those cracks disappear.

How To Silence Squeaky Floor Boards

A loose floor board can be both a household hazard and an annoyance. Depending on your floor access, it’s a relatively quick fix to repair floorboards as long as there are no major structural problems.