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Your Family Will Thank You For Having This Replacement Sealed Double Glazing Units
Replacing Double Glazed Units

Double glazed units can be replaced to lessen heat loss and noise, as well as reduce heating costs. With modern coatings and argon, or krypton gas fills they are also extremely energy efficient.

The new unit, made to exact measurements, is waiting for its spot. It is a task that requires attention and accuracy. This is a moment that will stop the world and puts your work into perspective.

Take the old unit out of the way

Removal of the old window is a critical step to ensure your new double glazed window is constructed to precise measurements. Clean the frame thoroughly to remove dust, dirt or old sealant. Repair any damage that is present. Sanding and wood filler can be used to repair minor damages, but major damage may require professional assistance.

After the glass is removed, it is important to measure its width, height, and thickness. The best way to do this is by prising out the glazing beads that hold the unit. This delicate process requires patience and care. Take your time and wear safety equipment to avoid slips and shards.

The best place to begin is to remove the bottom bead from the glazing strip, with a chisel that is sharp or a sharp wide-bladed screwdriver. After the bead is removed, it is recommended to seek assistance from someone who can hold the sealed unit while you remove the remaining beads. This is because the unit can easily fall out of the frame and break.

After all the beads have been removed, it's crucial to take careful measurements of the dimensions of the width, height and thickness of the existing unit. The measurements can be used to accurately construct an appropriate replacement unit for your home. It can also be used as a guideline to ensure that the new unit is built correctly for the frame. This is crucial because a misfit will not only result in the need to dismantle and put back together the entire window, but will reduce its efficiency and performance. This is particularly important in Australia where homes are often exposed to extreme weather conditions.

Preparing the Frame

If you are replacing an existing fixed sliding door or window that has a sash fixed or an opening sash, ensure that the new unit is of the correct size. UPVC frames have very little movement, and double-glazed units that is just a couple of millimeters too big is not going to fit. Measure carefully, and consult an expert or manufacturer's manual if necessary to ensure accurate measurements.

When you have a clear idea of the dimensions of your replacement, and are confident that it is correctly fitted remove the glass from its frame. Wear protective equipment, like gloves and work in a location that is well-lit to avoid injury from glass fragments. Utilize a putty knife to cut the glazing beads or strips, which secure the glass within the frame from around the edges of the pane. You should avoid slipping the glass or straining frame.

When the frame is ready to be sealed for the new double glazing unit, make sure that it will be able to open and close effortlessly. It should be a snug fit, but you are able to alter this if needed by adding or removing packers. If the frame is for sliding glass doors, you might need to add additional packers on the top of the hinge and opposite corner to prevent the sash catching when it opens.

Then clean the frame. Take off any old sealant or glazing tape If necessary. Check for any damage and make small repairs with wood filler or sanding if necessary. The frame will be rejuvenated by a final cleaning and inspection and will be able to withstand Australia's harsh weather for years.

Lifting the New Unit

Over time, double glazed sealed units (or a sealed unit as it is commonly known) can develop issues like moisture between panes and/or misting. This can compromise the effectiveness of your windows, allowing cold air to get in and warm air from your heater to escape, resulting in high energy bills and discomfort.

This kind of failure in seals usually occurs due to aging general wear and tear, or harsh chemical cleaners that degrade the sealing material. Sometimes however, the reason can be traced to the shrinking and expanding of the glass as a result of temperature changes and seasonal changes.


Once the frame is cleaned and ready and clean, you can lift the new unit into place. This is an exciting moment, as you've just made a real difference to your home, increasing its temperature during winter and cooling in the summer, while helping to reduce your energy bills.

Before securing Window and Door Seals and Gaskets Replacement , it is crucial to make sure that the new unit is properly fitted into the frame. A little attention in this phase can help avoid any damage to the frame as well as the glass.

If your windows are fitted with glazing tape or sealant it's time to put a bead around the perimeter of the frame and glass, creating a strong protection against air and moisture infiltration. Tighten the sealant with care making sure it's secure, but not tight enough to cause stress on the frame or glass. Enjoy your newly-installed double-glazed windows and reward yourself a pat for the job well done!

Secure the Unit

This is when your work is complete. The unit will be securely seated in the frame, and a fresh sealant will be applied to its perimeter. The unit is now secured to withstand Australia's diverse weather conditions, which is a guarantee for warm temperatures in winter and cool temperatures in summer. It's the moment when you can confirm the precision of your measuring and removal, which is a proof of a unit that was designed according to precise measurements.

If a window is made of glazing beads or screws, attaching the new window to the frame requires an art of balancing tight enough to secure and gentle enough not to stress the glass. If it's too loose, the unit could lose its airtight seal. If it's secure enough, it could cause damage to the frame or warp material. Each screw must be able to locate its original location and rotate just enough to secure the unit without putting too much pressure on it.

This is the last step in a transformative project that improves a home's comfort as well as energy efficiency and appearance. When your work is complete, with the new double-glazed unit firmly seated in the frame, and a new bead adorning its perimeter.

The insulating cavity between the panes of glass is filled with either argon gas or a desiccant. As opposed to air, argon is significantly lower thermal conductivity and reduces heat transfer through glass. Furthermore, a desiccant adsorbs moisture from the air, to prevent condensation and mould from growing within the frame. The spacer bar, which is typically made of aluminium is also an essential component of the insulation system. The aluminium not only prevents heat transfer but also keeps the edges warm of the insulated window to avoid condensation.

Be sure to check your work

It is important that you allow the silicone sealant to set once you have put in the new device. It will take at least four hours for the silicone sealant to reach its maximum strength and form an impenetrable wall. While you wait, visually assess your work to determine whether there are any gaps or issues that could affect the effectiveness or appearance.

It's also a great time to inspect the frame and seals to see if there are any signs of damage and determine if the entire window needs to be replaced. A damaged seal can significantly impact the efficiency of your home's energy usage, causing drafts or cold spots. It also allows ultraviolet rays to penetrate the house, leading to fading of furniture and decreasing the life span of carpets and curtains.

If you're experiencing any of these issues it's a sign that your double glazing is in need of replacing. Making it a priority to replace it immediately will lower your energy costs and provide a more comfortable and relaxed living space.

It is a complex and labor-intensive process that requires the right equipment, precise measurements and careful preparation. It is not an DIY project and should be undertaken by a specialist who has experience with uPVC Windows and Doors. They can ensure that the new unit is properly fitted to protect your home from the elements. Their expertise and knowledge will ensure that your double-glazed unit is quiet and efficient blend of warmth in the winter and coolness in summer, protecting your home from the elements.

Read More: https://www.repairmywindowsanddoors.co.uk/stevenage-window-and-door-seals-and-gaskets-replacement-near-me/