The Advanced Guide To Double Glazed Repair

· 5 min read
The Advanced Guide To Double Glazed Repair

How to Deal With Double Glazed Repair

You should make sure that your double-glazed window frames checked regularly, especially when they are shrinking or expanding. This will decrease the chance of draughts.

If you notice condensation appearing between the glass panes, it is possible that the seal be failing and must be replaced. Replacing the seal will not only reduce condensation but will also reduce energy costs.

Cracked or broken panes

Double glazing is not indestructible and there are a few issues that could reduce the energy efficiency of the windows and doors. Repairing double glazing is a relatively easy process, however the right tools and knowledge are required to carry out quality repairs. It is normally best to use a professional firm to complete the task rather than attempting it yourself.

The most frequent issue that occurs with double-glazed windows is a cracked or broken pane. A knock or blow from the outside can cause this, as could attempts to open a closed window that is stuck. Glass can crack or break into pieces based on its size and the force used to crack it.

Repairing double-glazed glass susceptible to cracking with the help of special tape or putty. This will prevent the crack growing or becoming worse, and will prevent wind, water or other elements from getting into your home through the cracks.

Another common problem is condensation in double-glazed windows. This is usually caused by a damaged window seal. It is a normal phenomenon that occurs due to temperatures and weather conditions. Before attempting to fix your windows, check to check if they're covered by warranty.

This will usually be covered by the company who provided you with the double glazing, so it is important to contact them promptly and clearly explain the issue. This should be written down instead of via text or phone. Always keep an original copy.

If you're interested in trying to fix and repair a misted window yourself, a typical procedure is to drill a hole into the centre of the affected window. The desiccant will absorb any moisture and aid in resolving the issue. This is a temporary fix and it is recommended that you replace your double-glazed units with new ones as soon as is possible.

Misty Panes


When double-glazed windows start misting up it can be a major issue and cause a significant disruption to your home. If you can pinpoint the issue, it's relatively simple to fix. Most often, the cause of the issue is a failure of the seals between your window panes that allow moisture to get in. Poor installation or drainage issues or damaged seals made by the window manufacturer can cause this issue.

Standard sealed units consist of two glass panes with a hollow spacer bar inserted between them (shown in the image above). The inside of the spacer bar is perforated and the spacer bars are filled with desiccant to suck up any moisture. The two glass panes then are sealed together and the whole unit is filled with gas to increase its thermal efficiency.

As you can imagine, if the sealed unit fails, then moisture can get in between the panes and can create condensation and mist. This can also cause heat to escape your home, which could result in a substantial amount of money lost on energy bills.

Repairing a misted glass is a challenging task that should not be attempted by someone who doesn't have a solid understanding of the construction and glazing industries. If you are willing to tackle the challenge, it's possible to fix a misted sealed window by introducing a moisture-absorbing desiccant in the gap between the glass panels.

Remember that this is a temporary fix, and the condensation could occur again. The process will need to be repeated. It is much more efficient to replace an affected unit. It's also cleaner and faster.  double glazing repairers  can also help restore the original insulation of your house that isn't accessible in a repair. If you are experiencing misted windows and condensation, we suggest you contact a reputable company that offers double glazing. In the meantime, try to keep your windows as dry as they can by ensuring they're properly ventilated and being cleaned regularly.

Water Leaks

Double-glazed windows shouldn't leak, whether they are new or old. Leaking windows are not only an inconvenience but can cause significant damage to your home, including the development of mold and structural damage as well as higher heating and cooling expenses. Contact a professional window company as soon as you suspect that there is a problem.

Window leaks are typically indications of a problem with the seals between the panes of glass. If you see condensation between the panes it's a sure sign that your window seal has become damaged and water is leaking into the gaps between the glass's insulating. A small amount of condensation is normal. However, if the problem persists and is visible on the exterior or interior of your home then it's time to call in an expert repair service.

Water accumulating at the bottom of the window frame is a common cause of leaks. This could be an indication of clogged drainage holes or flashing that is not properly installed or an unbalanced sill. A clogged drainage hole is easy to fix by using a coat hanger wire to clean out the gunk. Improper flashing is also easy to fix using roofing caulk to fill the gaps in the frame. If the window sill slopes to one side, it could be due to an improper pitch. A professional window repair service will be able to determine the reason and provide an efficient, quick and cost-effective solution.

While it is not uncommon for old UPVC windows to fail or leak however, it is more cost-effective and efficient to hire a professional double-glazed repair service. They can bring your windows' appearance and function to what they were when they first were introduced. They can even replace hinges, handles and locks if necessary. A reputable window repair service will also offer a type of warranty for their work, which you could not receive if you tried to repair the window yourself.

The difficulty of opening

If you notice that your windows are getting harder to open, call the company from which you purchased them. In the majority of cases the issue is fixable by a simple fix. If the issue persists it is possible to look at replacing your windows with more modern ones. New double glazed windows offer the latest technology to keep your home warm and secure, such as slimline uPVC frames made of aluminium with advanced insulation that stops heat from escaping, and innovative security hardware to deter intruders.

Condensation between the glass panes is another common indication that double glazing needs repair. This is caused by a failure of the seals that separate the two panes. Inert gases are supposed to escape between the panes of glass and be replaced by moist air. This keeps your windows in a breathable state and be energy efficient. If this doesn't happen, the seals could have degraded or even broken, which is something that could happen in time as a result of weather changes or other elements.

A draft from a double-glazed windows could be a sign the seals aren't working, which means that cold air is getting into your home. This can also lead to higher energy bills, as your heating system will need to be more efficient to keep the temperature inside your home steady.

In some cases a draught may be resolved by lubricating the hinges, handles or mechanisms on double-glazed doors or windows. It is important to remember that this is a temporary solution and you will have to seek out the experts in the event that the issue continues to persist.

You can also install ventilation devices, like extractors, air bricks, or vents in your windows and doors, to help with the issue of condensation. It is also essential to allow double-glazed windows and doors to  breathe by keeping them open to the maximum extent feasible, which can be achieved with trickle vents.