How to Repair Double Glazed Windows
There are several tell-tale indications that your double glazed windows require repairs. Evidently, water ingress or draughts leaking through the frames are an obvious indication of damage to your windows and should be repaired as soon as possible.
Misting may also indicate that the window seals are in need of replacement. Replacing the seals can fix the problem and prevent condensation, draughts or leaks.
Broken Panes
One of the most common issues a double-glazed window face is broken glass. While double pane windows are more difficult to break than single-pane ones However, accidents do occur and you'll need to fix a broken window as quickly as possible.
The first step is to take out any loose shards of glass that remain in the frame. Wear eye protection and gloves when you remove the glass as it can be very sharp. Be sure to check the floor for fragments that have fallen off after the shards are gone. Also, it's recommended to look for any metal hooks that could be holding the panes in place and pull these out as well.
Once the glass is removed, you can begin the process of removing the old glass compound and glazing points (small fasteners that pin the glass to the window frame) and replacing them with new ones. It's a lengthy process that requires the use of a few tools. You will need latex glazing putty, metal glazing points, pliers heat gun and a putty blade.
It's best to begin at the top and work your way downwards in removing the old points and glazing compound. This will ensure that you don't end up getting any of the sash's paint or wood stuck to your tool. Also, if you remove some of the sash's wood, be sure to employ a chisel or a utility knife instead of a chemical stripper as this can cause damage.
Finally, when you're finished make sure you sand any bare wood to smooth it. Once the wood is smooth, you can seal it using clear wood sealer or linseed. double glazing window repair will help protect it against water and future damage.
There are a few quick solutions to repair cracks in a double-pane window. However, these methods will not repair the damage and should only be used as an interim solution. A silicone caulk can help seal the gap, but you need to ensure that you use a top-quality caulk and adhere to the correct application techniques.
Condensation
If you've noticed any moisture or mist between the glass panes of your double-glazed windows, it's a sign that one of your windows is suffering from a failing seal. This can be a serious issue since it prevents insulating gas or air from getting trapped between the two panes.
Fortunately, this can be easily fixed by a double glazing expert. To resolve the issue, your window contractor will take out the affected window sash as well as the IGU (insulating glass unit) before blowing into a new gasket to make a strong and airtight seal to stop condensation from happening again. They will also employ drying agents to aid in drying the area out and stop the condensation from occurring again.
The other reason why you may see a haze between the glass panes of windows that are double-glazed is that the framework has moved slightly over time, which breaks the crucial seal. This can be a huge problem, as your windows will not work effectively and lose energy efficiency.
It is possible to replace double-glazed window's glass, but this can be expensive and is usually only required if the window is beyond repair. If you've noticed an issue with your double-glazed windows, and you're still within the warranty time and the window is still in good condition, it might be possible to get it fixed for free or at a lower cost.
It's a good idea to check the conditions of your warranty prior to you contact the company to see whether they are able to solve the issue without having to replace the entire window. Double-glazed windows usually have an assurance of 10 to 20 years. You may find that the company can fix the window unit instead of replacing it. If this is the case, then they'll likely send a specialist out to fix your double glazed windows and are usually able to do so quickly. This is a much cheaper alternative than purchasing and installing brand new double glazed windows and it's also better for the environment too!
Broken Locks & Handles
It can be a huge issue if your window handle is broken, or if it is difficult to open. You will not be able to use your windows. It could also give burglars a chance to break into your house. There are a variety of options to fix it however the most effective method is to speak with an uPVC expert. They can fix the issue for you, or provide you with a replacement handle.
There are many different kinds of window locks, but the most common is the Maco or Mila lock that is found on the majority of uPVC frames. They lock using rods that resemble bayonets, which could easily become jammed. The handle's nose is stuck in the popped-out position, and it is unable to return to its wedged locked position. This can be a frustrating problem, but can be resolved by following a few simple steps.
To fix the problem to fix the issue, you'll need to first take off the handle, which should be done with the help of a screwdriver. After removing the handle you'll be able to view the screws that hold the lock to frame. Once the screws have been removed, you can attempt to grab the bolts using an awl or a pair of pliers. If this fails then you can put the tool between the frame and the window (the gap may differ between the two windows) and then make an "u" shape with your fingers to grasp the bolts.

If you manage to unblock the bolts for shooting, you can close the window by moving the handle to the closed position. The gearbox (espag or espagnolette.) is likely to be damaged, so it will not open when you pull the handle. It is possible to replace the gearbox without the shoot bolts, thus the window will be opened by the handle (and it will remain secure) however, you'll have to purchase a new handle and gearbox.
Broken Hinges
You may need to repair or replace your uPVC windows hinges if they're not functioning smoothly. It could be that the window was opened too forcefully or the hinge snapped. They could also have a defect. Thankfully the replacement of the hinge is quick and easy and there's no need to buy windows that are new - you can simply get the old ones repaired instead.
First, you'll need remove the existing hinges. To do this, unscrew the screws that hold the frame to the hinges. After the hinges have been removed, you can replace the boards using plywood that has been cut to the correct size. Make sure that the plywood you choose to use is more robust than the original board so that it can withstand the weight of the window when open and closed. Use wood filler to make sure the hole left behind by the hinges of the past does not leak or break.
After you've filled in the holes and replaced the hinges, you will have to paint the doors. Make sure you use a high-quality paint to make sure it lasts as long as it can. Once the paint is dry and you are ready to re-attach the window and tighten any loose screws.
Regular maintenance is also important for hinges on windows. Cleaning the friction stay track and lubricating hinge mechanisms will help them last longer. You can also apply a wood preservative to protect them from the elements, which can help to prevent corrosion and keep them looking good for as long as is possible.
Double-glazed windows are more energy-efficient than single-glazed windows and will save you money on heating. Like every other component of your home windows, they will eventually need to be replaced or repaired. Our Preston experts can help you if there are signs that the double-glazed windows you have aren't working properly.