How to Repair Double Glazed Windows

Double glazing that is draughty or difficult to open or has dropped, sagged or sagged could need to be repaired. Hinges mechanisms, handles, and seals can be repaired or replaced by a skilled tradesman.

It is possible to perform some repairs yourself, but it's usually more time consuming than having a professional complete it for you. It is also less dangerous.

1. Broken Panes

Double pane windows rely on the space between the windows to form an airtight seal. This keeps warm air inside and the cold outside. However, this seal could be damaged by physical abrasion or exposure to extreme temperatures. It is important to fix cracks in double pane windows when they first occur. A small crack can get worse in time, leading to a damaged double pane window.

It's best to contact an expert if you have damaged windows. They will be able to locate a replacement that fits your frame. Then, they'll put in the new pane and ensure it's secure. It is also essential to take out all old putty and metal glazing points prior to installing windows.

This is a challenging job, so it's best to wear gloves and eye protection. Make use of a paint scraper that is a pull type or an old chisel to break out the old putty. You can use a heat gun to soften the putty and stop it from cracking. Once all the putty has been removed, you'll have to clean and sand the areas where glass will be placed. You can then apply silicone caulk for extra durability.

You can purchase a new window pane from your local hardware or home improvement store. Before you do, measure the length and width of your frame to determine which size window is suitable for your home. Be sure to subtract 1/8 inch from all sides so that you can get the exact measurements needed for the replacement window. You might end with windows that don't fit correctly and expose your home to the elements.

2. Condensation

Condensation is a common issue that a majority of double glazing owners face at some point during their windows' lifetime. It usually occurs due to a lack air circulation or humidity issues that causes cold surfaces like windows to draw moisture. This is particularly problematic in bathrooms where excess steam can travel through the window and cool to create condensation.

Because this moisture gets trapped in the gaps that insulate your panes of glass this can cause heat to be lost from your home or building and result in higher energy bills for you. If left for too long, this condensation can even cause mould and damp within your property which may require professional attention.

Open your windows each day in the morning, unless it is extremely cold. and also ensure you leave trickle vents on when you go out. Also, you can use dehumidifiers inside your home to suck up excess water and stop it from forming on surfaces such as your double glazing.

In more serious situations you may need to replace the windows that are double-glazed completely if there is cracks in the seal between the panes. This will be expensive, but it will help keep your home or building more comfortable and energy efficient. Check if your double glazing is still covered under warranty. If it is, the installers will replace the window units at no cost. Avoid DIY fixes for condensation since this could invalidate your warranty.

3. Leaks

The presence of water droplets or mist between the panes of your double glazing is a sign that there is a problem with the seals of your window. It doesn't suggest that you need to replace the window. It is fixable by replacing the caulking.

The frames of double-glazed windows and doors expand and contract due to temperature changes. This can lead to gaps forming around the frame that over time will create drafts and let water seep into the house.

Another reason could be that the insulating gases within the window get dislodged with time. This can create drafts that allow moisture to enter the home. If you find that your double glazed windows are becoming difficult to open or close by wiping them with cold water can temporarily fix the issue until warm weather is back.

The majority of double-glazed windows and doors are covered by a guarantee from the company that installed them. If you're experiencing any problems with your double glazing that falls under this guarantee, then be sure to contact them as soon as possible. window glaziers near me to do this is handled by telephone or in person, and then followed up with an official letter detailing the nature of the issue and when you first noticed them. This will prevent any confusion later on if there is a dispute regarding what is or isn't covered under your warranty. It will also ensure that your complaint is taken seriously by the company that completed the work. If you're unable receive a satisfactory answer from the business you bought your double glazing from, then it may be worth employing the services of an alternative tradesman who is endorsed by Checkatrade and is rated by their clients.

4. Hardware damaged

A double-glazed window is comprised of two glass panes that are separated by spacer bars and a gap filled with an gas that is insulating. It is encased in a frame of aluminum, uPVC, or wood. Over time the hardware can become loose. A door or window that isn't opening can be a hassle.

The cost of replacing a double-glazed window can be costly. Window repair companies charge between $50-$80 an hour to take out and replace the window. The exact cost will depend on the shape, size and thickness of the window and also the design and quality of the surrounding frame and sash. The cost of repair will also be based on whether the window is single-hung or double-hung. Windows that are taller or require roof access will cost more to repair because repair technicians require additional tools and safety measures.

Installers will wash the new double-glazed window before sealing it. The installer will then apply silicone around the edges to ensure that the seal is watertight. This is particularly important for windows that are located on the ground of a building, where condensation could build up in the bottom frame.

Another way to keep your windows looking nice is to paint them regularly with a high-quality paint. This keeps them looking fresh and shiny for longer, and shield them from UV rays. Double-glazed windows can also make your house quieter and increase the value of your home by making it more energy efficient and suitable for prospective home buyers to live in.

5. Glass that is damaged

Double-glazed windows are designed to keep your home warm by keeping out cold air and letting warm air into. This helps reduce the amount of sun that enters a room and protects your furniture from sun damage. But sometimes, glass can get broken. Perhaps a pebble bounces off a lawnmower or strimmer and breaks a pane. Or maybe a kid throws a ball into it or an accident happens. A broken window is an inconvenience.

Most often, a damaged or cracked pane can be repaired with epoxy or a similar product. It is essential to clean the area and eliminate any old putty around it before applying the new epoxy. You can soften the putty by using a cotton soaked in linseed, or a heat gun. You can then scrape off the glass pieces that have splintered and then chisel the edges to get rid of the old putty.


Then, apply the epoxy to the crack, spreading it across the entire surface. Press it firmly, working it into the crack. Allow the epoxy to completely dry before you can put in the replacement pane. Make sure that the replacement is of the same size to the one you had before. If you are replacing leaded glass, gently bend the H-shaped lead back over it.

If you're not confident doing these DIY repairs or in the event that the damage to your windows is significant and beyond repair, then it is best to seek professional help. It is, in fact, easy to locate a skilled and dependable tradesperson using the online service Checkatrade. Enter your postcode along with the details of your project and you'll be connected in a matter of minutes with local experts.