4.8/5 stars based on 550+ reviews

Product details

Description

Tiny gap, big impact—seal it without losing your smooth slide. 🪟💨🔒

Aluminium sliding windows may glide easily, but they often come with poor sealing, allowing in draughts, dust, noise and even bugs. The EMV Slim Line Seal offers a discreet, flexible solution to seal the gaps around your aluminium sliding windows—without affecting their movement or appearance.

This clever seal fits snugly between the window sash and frame, forming an effective barrier against unwanted airflow and debris. It's the perfect choice for homeowners, renters or renovators looking to improve thermal comfort and reduce external noise without removing or replacing the window.

✅ Designed for aluminium sliding windows

✅ Blocks draughts, dust, noise, and insects

Low-profile and flexible—maintains smooth sliding action

✅ Easy DIY install—no need to remove the window

✅ Durable, discreet, and long-lasting

✅ A must-have for improving comfort and energy efficiency

Make your windows work harder—without working harder yourself.

The EMV Slim Line Seal gives your sliding windows the performance boost they’ve been missing.

Frequently Asked Questions

What is draught proofing, and why is it important?

Draught proofing means sealing up all the gaps (big and small) where air sneaks in or out of your home—around windows, doors, vents, chimneys, and even curtains. It’s one of the easiest and most effective ways to improve comfort, reduce energy waste, and lower your heating and cooling bills.  Generally draught proofing is the first step in you making your home energy efficiency.   The major component  of a home’s energy costs is used on heating and cooling.  Your home can’t be effectively heated or cooled if you can drive a “mac truck” under your front door.

Will this really make a difference to my energy bills?

Yes! Draught proofing reduces how often your heater or air con needs to run. Less hot air escaping in winter, less heat sneaking in during summer = lower energy use, more comfort, and more savings.  In the ecoMaster test house, which was draught proofed more than 20+ years ago, we saved 50% of our $2,500 heating bill in the first year after completing it.  And of course, we have continued to save that amount every year.

How do I know where the draughts are coming from?

A walk-through your home on a windy day can help you feel where air is leaking in (like under doors or around windows, chimneys and exhaust fans). You can also check unused heating vents, behind curtains, skirting boards, cornices and picture rails —these are often the hidden culprits.

If you’re not sure where to start, you’ve got three great options:

You can try to track down the draughts yourself, or get a little help with our Find and Fix My Draughts program—designed to guide DIYers in spotting every sneaky gap in their home. Prefer to leave it to the pros? We can connect you with a trusted draught proofing technician in your area for a full in-home assessment. Just get in touch and we’ll point you in the right direction.

What products do I actually need?

That depends on where the leaks are!

  • Draught Dodgers for effectively sealing doors and windows.
  • Chimney Draught Stoppers block open fireplaces.
  • Goodbye Heating Vents seal off unused ducted heating.
  • DraftStoppas stop airflow through ceiling exhaust fans.
  • Invisible Pelmets help block airflow and heat loss behind curtains.
  • UltraClear seals gaps and cracks where one surface meets another. 

If you’re not sure, start with either work with the online program Find and Fix My Draughts, follow the Draught Proofing Information Hub one room or hire a draught proofing technician.  Or contact us for a referral to a trusted draught proofing technician in your area.

Can I install draught proofing myself, or do I need a tradie?

Most draught proofing products are totally DIY-friendly—especially with the help of our video guides. They’re designed for everyday Aussies, not just seasoned professionals (althought they also buy ecoMaster products). If you’re comfortable using basic tools, you can do this.  We indicate where any particular product requires an experienced hand. 

If you could prefer for a draught proofing assessment and professional installation, please contact us for a referral to a trusted draught proofing technician in your area.

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Customer Reviews

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Gary Hunt
No more rattle

In my 1970's apartment the aluminium window frame in the bedroom had a rattle when ever there was any breeze. The rattle was inconsistent and unpleasant, not a background noise, rather an occasional alarming bang, rattle sound.
By applying a singe strip of the EMV Slim Line Seal to the top and bottom of the open side of the window. The seal is folded in half along the length with the open side of the fold down towards the bottom of the bottom runner, and up towards the ceiling of the top runner.
I carefully pulled the backing tape off while pushing the seal against the in side edge of the window frame.
The rattle has completely gone away.
The EMV Slim Line Seal worked exactly as described and I am very happy with the result. Prior to trying the Slim Line Seal I was considering how I get the third floor window in my strata apartment replaced.

Hi Gary,

We are thrilled to hear that our EMV Slim Line Seal successfully eliminated the rattle in your bedroom window. Our goal is to provide effective solutions for common problems with windows, and we are happy to know that it worked exactly as described for you. Thank you for choosing our product and we hope it continues to serve you well. If you have any further questions or concerns, please do not hesitate to reach out to us. Have a great day!

S
Samantha Hyatt
Easy to install, great result

Installed on our old rattling aluminium windows. So pleased with the results. Now draft proof and silent! Keeping the warmth in overnight is excellent

Hi Samantha,

We're delighted to hear that our EMV Slim Line Seal has made a noticeable difference in the comfort of your home. Our goal is to provide easy-to-install solutions that improve the functionality of your windows, and we're thrilled to know that we achieved that for you. Thank you for choosing our product and for taking the time to share your experience. We appreciate your support!

M
Margaret Puli
Margaret Puli

Best sliding aluminium (EcoMaster) ever and great door strips. I have recommended your Company to friends. Many thanks

Thank you for your glowing review Margaret! We are grateful for your kind words and are so pleased that you recommend us to your friends. Have a wonderful day!