What's in the kit
Everything to seal one double hung sash window
For windows up to 2m high and 1m wide. Doing more than one window? Order one kit per window.




Timber: FSC-certified solid pine, lightly primed with undercoat. Give it a final paint once it's installed. As a natural material, it may have knots and grain variation that don't affect how it performs.

How the seal works
Brush and fin, already fitted in the timber
Kerf-fit brush
The brush sits in a slot cut into the bead, not stuck on the surface, so it stays put and looks neat.
The fin does the sealing
A plastic fin runs through the middle of the brush. Fit the bead so the fin touches the sash and it forms the weather seal.
Made for sliding sashes
Brush seals let the sashes slide up and down. Compression seals aren't suited to sliding windows.
No assembly needed
Just measure, cut to length and nail in. You don't need to fit carriers or brush yourself.
Which kit do I need?
Choose by the width of your stop bead
Both kits include the same parting beads, meeting rail draught stopper and sash cord. Only the staff beads differ.
Suits stop beads around 22mm wide.
Suits wider stop beads, around 30mm.
View the 30mm kit →How to check: measure across the face of the bead that holds your bottom sash in place (the stop or staff bead). Not sure which you have? Send us a photo or call 02 7228 0625 and we'll help.
Installation
Fit it yourself, step by step
Step-by-step instructions are included, and we're a phone call away if you get stuck.
Remove the old beads
Cut through the paint, lever off the staff beads, lift out the bottom sash and remove the parting beads.
Fit the parting beads
Measure, cut and nail in. Brush faces in on the bottom half and out on the top half.
Refit the bottom sash
Once the parting beads are in, put the bottom sash back in place.
Fit the staff beads
Push them up to the sash so the gap closes but the window still slides, then nail in.
Watch the installation video
Full step-by-step instructions
Tip: have everything on site before you start. Courier delays do happen and are outside our control.
Tools you'll need
A sharp utility knife, a flat pry bar or chisel, a tape measure and pencil, a saw for cutting the beads, a drill for pre-drilling, a hammer and 40mm nails.
Optional hardware kit
Finish the window with matching hardware
Add two sash lifts and a fitch fastener to your kit. Choose a finish under "Style" at the top of the page.
Questions
Good to know
Will one kit do my window?
One kit seals one double hung sash window up to 2m high and 1m wide. For larger windows, or if you're unsure, give us a call and we'll work out what you need.
Grey or white brush?
It's your choice. Pick the colour you'd rather see against your paintwork. You choose it under "Colour of Brush" at the top of the page.
Does the timber need painting?
Yes. The beads come lightly primed with undercoat, so they're ready for your final coats once installed.
How does delivery work?
We deliver Australia-wide, and shipping is calculated at checkout. Orders are usually picked and packed within 2 business days. Delivery times are estimates, so allow extra time around public holidays.
Can I pick up in Sydney?
Yes, pick-up is free from our warehouse in Warriewood, just off Mona Vale Road. Choose Pick up at checkout and we'll message you the address when your order is ready.
I'm doing a few windows, or I'm a tradie
Order one kit per window. For bigger jobs or trade pricing, call us on 02 7228 0625.
Not sure it's right for your window?
Talk to people who restore sash windows. We're happy to help before you buy, or while you're fitting it.