If a double-glazed window does not close, it creates drafts that allow heat to escape. This can also compromise the security of your home and puts you at greater chance of being burglarized.

Over time, double glazed window hinges handles, seals and handles can be damaged. If this is the case it could affect the functionality of your windows and cancel any warranties you may have.
Locks that aren't working
While a lot of people take great care in installing anti-burglar systems for their gates as well as main doors, it is often overlooked that the windows are prime targets for burglars. Poorly secured locks can cause drafts, let heat escape and weaken the security of your house.
If you find that your uPVC window locks are not working, there's likely that the mechanism for locking has become blocked. This usually occurs due to a slit in the gearbox component. This could cause the handle to not open, but to rotate 360 degrees. This is a common problem with uPVC casement windows, but can also be present in tilt and turn windows and even sliding sash windows.
If this happens, unlock the lock by pressing the lever handle. This can help to unblock the gear box and allow the window's opening. If this does not work, you may need to replace the window lock mechanism completely.
Most modern uPVC windows use espagnolette locks. These are an internal locking system that secures the window employing locking cams shaped like mushrooms that are inserted into the frame. The handle turns on the gearbox, which then activates the cams for either upward or down movement. The spindle of the lock can break and cause the handle to move, but the window to either open or close.
A broken gearbox could cause your window to appear locked, but isn't actually. This is because the rods that are the center, also known as crocodile tooth fixings in the gearbox snap off. Misty Glaze will supply and install replacement rods in the event that this happens.
It is crucial not to force the lock to break or get a stuck one. This could cause the lock to snap or break - especially with a uPVC window that expands and shrinks as it warms up and cools. It is recommended to contact an expert locksmith who will diagnose the problem and repair it.
Sticky Doors/Window
The problem of windows and doors sticking is an extremely annoying problem however, they could also indicate more serious structural issues. It's important to get professional help if you have difficulties opening or closing windows or doors. This issue can be caused by a number of causes such as foundation settlement or an absence of support in the crawl space.
Frame or humidity issues could cause windows and doors to stick. When exposed to moisture, wooden frames may begin to warp. Even if the hardware appears great, this could make it difficult to open and close your frames. The wood expands when this happens and pushes against the hinges, causing friction.
If your window or door gets stuck in the summer, try rubbing it with bar soap to reduce the friction. This will help it shrink and may resolve the problem temporarily. This procedure will have to be repeated frequently during periods of high humidity.
A more permanent solution is making the door or window frame down to a smooth finish. This can be done by hand or using an electric tool. A professional can also sand, paint or stain your door or frame to make it appear new and fresh.
If Sanding and soap aren't working it's likely that your problem stems from foundation settlement or a weak crawl space. Check for cracks in the area. It's time to call an expert in foundation when you spot any of these indications. Foundation damage can cause uneven flooring and sloping interior walls, which in turn causes stuck doors and windows. It's important to tackle these issues as early as you can to avoid costly and risky repairs in the future. If ignored these issues can escalate to the point that your entire home's structure is unstable. Contact the Southeast's most reputable foundation repair experts to schedule an inspection now!
Cracking/Blowing Issues
When double glazing starts to deteriorate, it may cause cracks to appear. double glazing repairs can be an unsightly sight, and can also allow the heat inside your home to escape. This could also pose danger to your family, as the sharp glass pieces could cause injury if they break. It is recommended to repair any double-glazed windows that have a crack before it gets worse, since this could increase the cost of replacing them.
Window seals are vital for keeping air in between your window panes, and they also stop drafts from entering your home. Over time, the seals will shrink or eventually get damaged because of changes in weather. If not checked, it can lead to moisture, condensation and draughts within your home.
This issue is typically resolved by an expert. They can replace the seal on your window and bring your windows back to their original state. They will also suggest other features that will reduce the chance of a stress crack forming in the future, for example trickle vents for better ventilation.
You can also grease the handles and hinges of your doors and windows. This will enable them to move more smoothly and let the lock work as intended. Apply lubricating oil to a clean cloth and rub it into the hinges and handle mechanism as well as the areas where they pass through the frame (for instance, sash windows). It may also be beneficial to remove the handles from the frames and wash them by using warm water to rid them of any dirt or grit which has been stuck to them.
It is crucial to contact an expert if you find that your uPVC doors and windows are not working as they should. They will be able to determine the issue quickly and resolve the issue within a short amount of time. It's a lot safer and more affordable than trying to fix it yourself and potentially damaging the mechanism. You'll also be able to rest in peace of mind knowing your home is secure and secure.