Replacing Double Glazed Units
Double-glazed units can be replaced to lessen noise and heat loss, and also reduce heating costs. Modern coatings and argon/krypton filled units make them extremely energy efficient.
The new unit, made according to precise measurements, awaits its moment and demands care and precision. This is the moment that stops the clock and puts everything into perspective.
Take the old unit out of the way
It is important to remove the old unit to ensure that your new double-glazed window is constructed to precise measurements. Clean the frame carefully to get rid of dust, dirt, or old sealant. Repair any damage that may be present. Small repairs can be done with wood filler or sanding but major damage might require professional repairs.
Once the glass is removed, it is necessary 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 is a delicate procedure that requires patience and care. It is recommended that you take your time and always wear safety equipment to protect yourself from unexpected shards of glass and accidental slips.
Begin by stripping the lower part of the glazing strip with a sharp chisel, or a wide-bladed screwdriver. It is best to ask someone to hold the sealed window unit while you take out all the beads. This is because the unit could easily be thrown out of the frame and smash.
After you have removed all the beads, it is important to measure the width, height and the thickness of the present unit. The measurement data can then be used to precisely design a replacement unit for your home. In addition it will give you a direction to ensure that the new unit is a good fit in the frame. This is crucial because an inadvertent misfit could result in the need to remove and put back together the entire window, but it will also impact the efficiency and performance of the window. This is particularly important in Australia as our homes are often subject to extreme weather conditions.
Preparing the Frame
If you are replacing a fixed window or a sliding door that has an opening or fixed sash, make sure the new window is the right size. UPVC frames have very little movement and double-glazed sealed units that is just a few millimeters larger than the original is not going to fit. Be sure to measure carefully, and consult a professional or manufacturer's guide for any necessary measurements.
Remove the glass from the frame when you're sure that the replacement is the right size and has been correctly fitted. Wear safety gear, such as gloves and work in a location that is well-lit to avoid injury from glass fragments. Utilize a putty knife to cut off the glaze strips or beads that secure the glass in the frame from the edges of the pane. Avoid slipping on the glass or straining frame.
Once the frame is ready for the new sealed double glazing unit, make sure whether it is able to open and close easily. It should be a good fit, but you are able to adjust this if necessary by removing or adding packers. For instance, if your frame is a sliding door, you may have to add extra packers at the top of the hinge side and opposite corner to prevent the sash from colliding or shaking when it opens.
Finally, clean the frame and remove any old glaze tape or sealant as required. Assess any damage, and make small repairs if necessary by using wood filler or sanding. A final clean and inspection will prepare the frame for your replacement, ensuring it will last for a an extended period of protection from Australia's harsh climate.
Lifting the New Unit
Over time, double-glazed units may develop issues like condensation between panes or misting. This can reduce the efficiency of your windows and allow cold air to get in and warm air from your heater to escape, which can result in high energy bills and discomfort.

This type of failure in seals is usually caused by age, general wear and tears or harsh chemical cleaners that degrade the sealing material. However, in some cases, the reason is due to expanding and shrinking of the glass during changing seasons and the temperature fluctuations in the home.
After the frame has been cleaned and prepared and sanded, you can begin lifting the frame into place. This is a thrilling step since you've just increased the efficiency of your home's heating during winter and cooling during the summer months, while also reducing your energy bill.
Before securing the unit it is crucial to ensure that the new unit fits into the frame. A little attention in this phase can help avoid any damage to the frame as well as the glass.
If you have glazing tape or sealing tape on your windows, this is the moment to apply a bead along the perimeter of the glass. This creates a solid barrier that will prevent air and moisture from getting into the window. Be sure to seal the sealant in a controlled manner but not so much that it causes stress to the glass or frame. Finally, give yourself and a pat on the back for a job well done, and then enjoy your newly-installed double-glazed window!
Secure the Unit
With the new unit seated perfectly in the frame, and a new layer of sealant covering its entire perimeter This is the moment that signifies the end of your project. The unit is now secure to withstand Australia's varied weather, a guarantee of warmth in winter and coolness during summer. This is the time the precise measurements and removal is validated and a confirmation that the unit was built according to the exact dimensions.
Whether a window uses glazing beads or screws, fixing the new unit to the frame requires a delicate balance between tight enough to hold it in place and soft enough not to strain the glass. If it's too loose, the unit might 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 place and rotate just enough to secure the unit without applying undue pressure.
This is the final step in a project that can increase the energy efficiency of a house and comfort as well as its appearance. With the new double-glazed unit firmly seated in the frame and secured with a fresh bead of sealant around its perimeter This is the moment that signifies the end of your work.
The insulating cavity between the panes of glass is filled either argon gas or desiccant. As opposed to air, argon is less thermal conductivity, which reduces heat transfer through the glass. In addition the desiccant absorbs moisture from the air, preventing condensation and mould from forming in the frame. The spacer bar is constructed of aluminum and is an essential component of the insulation system. The aluminium blocks the transfer of heat but also keeps the edge of the insulated glass warm to avoid condensation.
Verifying Your Work
When you've put up the new unit and applied the silicone sealant around the edges it is essential to allow it to set. Don't disturb it! It will take at least four hours for the silicone sealant to attain its maximum strength and create an impenetrable barrier. While Our Web Page are waiting, take the time to visually evaluate your work and see if you are able to spot any gaps or other issues that could compromise the effectiveness or appearance of the unit.
This is also a good moment to inspect the frame and seals for signs of damage that need attention, and also to determine whether replacement of the entire window is required. A faulty seal can have a huge impact on the efficiency of your home, causing cold spots and drafts. It can also permit ultraviolet rays into the house, leading to fading of furniture and reducing the life of curtains and carpets.
If you're experiencing any of these issues it's a sign that your double glazing needs replacement. Making it a priority to replace it immediately will lower your energy costs and create a more comfortable and relaxed living space.
It is a technical and labor-intensive procedure that requires the right equipment, precise measuring and careful preparation. It is not an DIY project and should be undertaken by a specialist who has expertise working with uPVC Windows and Doors. They can ensure that the new unit is fitted correctly to protect your home from the elements. Their skill and experience will ensure that your double glazed unit is quiet and effective balance of warmth during winter and coolness during summer, protecting your home from weather.