Notes

What You Should Be Focusing On Improving Double Glazed Repair
How to Deal With Double Glazed Repair

It is a good idea to have your double-glazed windows inspected regularly, especially if notice the frames are contracting or expanding. This will decrease the chance of drafts.

If you notice condensation appearing between the glass panes, the seal could be failing and must be replaced. The seal can be replaced to decrease condensation and save energy.

Cracked or Broken Panes

Double glazing is not indestructible and there are a few issues that could reduce the energy efficiency of windows and doors. Repairing double glazing is a relatively easy process, however the right tools and knowledge are required to make quality repairs. It is generally recommended to employ a professional complete the task, instead of trying to do it yourself.

A cracked or broken pane is the most common problem with double-glazed windows. A blow or knock from the outside can cause this, as can attempts to open a stuck-closed window. The glass could break or crack into smaller pieces, depending on the size of the crack and the force applied to it.


If windows with double glazing are susceptible to cracking it can be repaired using a specific type of putty or tape. This will prevent the crack from extending or becoming worse and it will block any wind, water or other elements from entering your home through the cracks.

Condensation in double glazing is another common problem and is usually caused by a failure of the window seal. It is a natural occurrence that occurs due to different temperatures and weather conditions, so it is important to check that your windows are under warranty prior to attempting to repair them.

This will usually be covered by the company who provided you with the double glazing, therefore it's essential to contact them immediately and clearly explain the issue. This should be written down instead of via phone or text. Always keep a copy.

If you're looking to try and fix a window that has become misty yourself, a common method involves drilling a hole into the centre of the damaged pane. The desiccant will absorb moisture and aid in resolving the problem. However it is an interim solution, and it is recommended to get double-glazed windows replaced with new windows as soon as you can.

Misty Panes

When double-glazed windows start misting up it can be a huge issue and cause a significant disruptions to your home. Once you have identified the source it's easy to fix. In most cases the cause of the issue is a defect in the seals between your window panes, allowing moisture to enter. This can be caused by poor installation, drainage problems or even seals that are defective from the window manufacturer.

Standard sealed units are made up of two glass panes that are sandwiched by a hollow spacer (shown above). The inner surface of the spacer bar has been perforated and the spacer bars have been filled with desiccant in order to absorb moisture. The two glass panes are sealed and the whole unit is injected with gas to improve its thermal efficiency.

As you can imagine, if the sealed unit fails, moisture can get in between the panes and can cause condensation and even mist. This can also cause heat to escape from your property, which can result in a significant amount of money lost to energy bills.

Repairing a misted glass is a tricky job that should not be attempted by a person who isn't well-versed in the glazing and construction industries. However, if you're willing to take on the challenge, then it's possible to repair a misted sealed unit by adding moisture absorbing desiccant back into the gap between the glass panes.

Be aware, however, that this is only an interim solution. The condensation will likely to return and the process may need repeating. It's much more efficient to replace misted glass units and it will also be much more hygienic and faster. A replacement will restore the original insulation to your property and is not achievable by repairing. If you are experiencing misted windows or condensation, we recommend contacting an established company that provides double glazing. While you wait, make sure to keep your windows as dry and clean as possible.

Water Leaks

Double-glazed windows shouldn't leak, regardless of whether they're new or old. Leaking windows aren't just a nuisance, but can cause serious damage to your home. This can include the growth of mold as well as structural damage and higher heating and cooling costs. Contact a professional window service as soon as you suspect that there is a issue.

Window leaks are typically an indication of a problem with the seals that connect the panes of glass. If you notice condensation between the glass panes it's a sign that the seal between the two panes has deteriorated. The moisture is now leaking through the insulating space between the two panes. A small amount of condensation is normal. However when the issue persists and appears on the exterior or interior of your home it is the right time to call a repair service.

Another cause of leaks is that water collects on the bottom frame of your window. This can be an indication of drain holes that are blocked or flashing that isn't properly installed or a sloped sill. A drainage hole that is blocked can be easily fixed by using a coat hanger made of wire to clean out the gunk. Improper flashing is also easy to fix by using roofing caulk to fill the gaps around the frame. A misplaced pitch could be the cause of the window sill sloping to one side. A professional window repair service will be able identify the cause of the issue and offer an affordable, fast solution.

It is not uncommon for UPVC windows that are older to break or leak. However it is much more cost-effective and efficient to employ a double glazing repair service. They can bring your windows' appearance and function to the way they were when they first were released. They can even replace hinges, handles, and locks if required. Professional window repair companies will offer you a guarantee on their work. You wouldn't receive this if you tried to repair the windows yourself.

Achieving the Open

If you find that your windows are getting harder to open, you should contact the company that sold you windows. In most cases, a simple fix will resolve the issue. If the issue continues to persist then you should think about replacing your windows with modern windows that are more modern in design. New double glazed windows offer modern features that keep your home safe and warm, including slimline uPVC or aluminium frames and advanced insulation to prevent heat from escaping, and innovative security equipment to stop intruders from entering your home.

Another indication that your double glazing is in need of repairs is condensation between the glass panes. This is due to an issue with the seals between the two panes. Inert gases are supposed to escape between the two panes of glass and replaced by moist air. This will keep your windows in a breathable state and be energy efficient. If this isn't the case, the seals could have deteriorated over time due weather changes or other factors.

A draught emanating from your double-glazed window an indication that the seals have failed, which means that cold air is leaked into your home. This can also result in more energy costs as your heating system will have to work harder to maintain the temperature of your home.

In certain cases, a draught can be fixed by lubricating hinges, handles or mechanisms on double-glazed windows or doors. It is crucial to keep in mind that this is temporary solution and if the issue persists, then you will need to seek out the experts.

You can also install ventilation devices, like air bricks, extractors or vents in your windows and doors to assist with condensation issues. It is also important to allow your double-glazed windows and doors to 'breathe' by leaving them open as much as feasible, which can be achieved with trickle vents.

Website: https://www.repairmywindowsanddoors.co.uk/misted-double-glazing-repairs-watford/