Glazing Seals for Windows & Doors - How to Change Glazing Seals
When it comes to seals on windows, they’re are generally two types – the glazing seal and the draught seal. The glazing seal is the rubber seal that surrounds the glazing of your windows or doors. This type of seal is generally found on aluminium and older upvc windows and doors. These glazing seals can shrink back over the years which can look unattractive and lets in draughts.

Get A Free Glazing Seal Sample!

At Window and Door Parts we have got you covered. If you think it’s time to upgrade or replace your glazing seals you’re in the right place as we stock a range of glazing seals with sizes to suit almost every window and door. Contact us today and we will post you out a sample of each size to try in your window or door. And, not only can we provide you with the seals you need we’ll now go through how you can replace your glazing seals.

Free Glazing Seal Sample - Window and Door Parts Ireland

How To Change Glazing Seals

With a small flat head screwdriver or paint scraper gently pry the existing glazing seal out of your window. Using your fingers, push the sample of glazing seal into the space between the glass and the window. Starting with the smallest size. You want the seal to fit in tightly into the space. It should push into the gap with a little bit of effort and should not fall out. If the seal is too big do not force it, as this can cause the glass to break.

When your happy that you have the correct size seal, measure the length of seal you need. Say we are going to replace the seal in this window. Measure the length and height and multiply by 2. That gives us the length of seal needed to re seal the window. When re sealing you should always cut each length about 10mm or 15mm longer than the actual length. This is to allow for shrinkage that will happen in time. Add this on to your total length. It is also a good idea to order more than you need, in case you make a mistake when cutting.

How To Find A Draught

The draught seal is the seal that goes around the frame rebate and the sash rebate. This is the opening section of the window. It is really important to check the hinges on your window openings. In the vast majority of cases if you have a draught coming through your window it is the hinges that are the problem and not the draught seal. If the hinges on your window are broken, they will not close the window sash tightly against the draught seal. Thus causing a draught. Check out our video on how to fully check your windows for draughts and read our post here on the most common causes of window draughts.

Universal Bubble Seal

If you think your draught seal is damaged or has become hard and brittle we can send you a sample of our universal bubble seal to try out. The universal bubble seal is a window draught seal that is designed to fit the majority of upvc windows. The bubble shape allows the seal to compress to ensure a tight seal.

Universal Bubble Seal for Windows and Doors Ireland

Using Universal Bubble Seal

Simply grab the existing draught seal with your fingers and pull out. It should pop out without too much effort. Don’t use any tools to remove it. On some modern pvc windows this draught seal is co-extruded, which means the seal is made part of the window frame and can’t be replaced.

Push the seal sample into the groove in the window rebate. It should push fit into the groove tightly and stay firmly in place. When your happy that you have the correct size seal, measure the length of seal you need. Measure the length and height and multiply by 2. That gives us the length of seal needed to re seal the window. It is also a good idea to order more than you need, in case you make a mistake when cutting.

Guide to Glazing Seals

I hope you find this guide about glazing and bubble seals useful. Please be aware that this guide is aimed at the most common window types. There are a huge variety of windows and likewise draught seals for them. Please contact us if you have any questions about your window seals.