How to Repair Double Glazed Windows
Double glazing that is noisy or difficult to open or that has sagged, fallen or sagged could require repairs. Hinges, mechanisms, handles and seals can all be repaired or replaced by a professional tradesman.
It is possible to make some repairs yourself, but it can be time-consuming than having a professional complete it for you. It is also less risky.
1. Broken Panes
Double pane windows make use of the space between the two panes in order to create an airtight seal. This keeps heat inside and cold outside. This seal can be compromised when it is exposed to extreme temperatures or an impact. It is important to fix cracks in double pane windows as soon as they begin to occur. A small crack can worsen over time and cause a window to break.
If you've broken a pane, you should contact a professional. They'll be able to locate an appropriate replacement window that will fit your frame. They'll then install the new window and make sure it's secure. Before installing a new window, it's essential to get rid of any old putty or glazing points.
Wearing eye protection and gloves is recommended for this task. Utilize a pull-type paint scraper or an old chisel to pry out the old putty. To avoid the putty cracking you can place a heat gun over it to gradually soften it. After all the putty has been removed, you'll have to clean and sand the areas where the new glass will go. You can then apply silicone caulk to ensure durability.
You should order a new window pane from your local hardware store or home improvement store. Measure the width and height to determine what size window you will need for your home. Make sure to subtract 1/8 inch from all sides, so you will have the exact measurements required for a replacement window. You could end up with windows that don't fit properly and expose your home to the elements.
2. Condensation
Many owners of double glazing will encounter condensation at some point in the life of their windows. Most often, it is caused by the lack of air circulation in rooms or issues with humidity that cause windows that are cold to attract moisture from warm air. This is especially a problem in bathrooms where excess steam can pass through the window and cool to create condensation.
As this moisture is trapped in the space between the glass panes, it can cause heat to be lost from your building or home - which will result in higher energy bills for you. If left for too long the condensation could cause mould and damp in your home, which could require professional treatment.
The most effective way to stop condensation is to open your windows each morning (unless it's extremely cold!) and also ensure you keep the vents for trickle vents open when you go out. You can also install a dehumidifier inside your home to help absorb excess water and prevent it from developing on cold surfaces, like your double-glazing.
In more serious situations it is possible to replace your double-glazed windows entirely if there is an issue with the seal between the panes. This is a costly repair, but it will make your home or building more energy efficient and warm. Make sure that your double-glazed unit is still covered under warranty. If so the installers will repair the window units for free. Avoid trying DIY fixes for condensation because this could invalidate your warranty.
3. Leaks
If you notice water droplets or a mist between the panes of double glazing this could be a sign the seals are faulty. But, this doesn't mean that you will need a replacement window as it can often be fixed simply by replacing the caulking around the frame.
The frames of double-glazed windows and doors expand and contract in response to temperature changes. This can lead to gaps appearing in the frame, which will eventually let water into the home.
Another reason is that over time, the gas that insulates the window may become dislodged, which could result in a draught and allow moisture into the home. If you notice that your double-glazed windows are becoming difficult to open or close by wiping them with cold water may help temporarily solve the issue until warm weather returns.
In the majority of cases, double glazed doors and windows will be covered by a warranty from the company who installed them. If window glazier encounter any issues with double glazing covered by this guarantee, you should contact them as soon as you can. Ideally, this should be handled by phone or in person. It should be followed up with an official letter detailing the problem and the date you first noticed them. This will help avoid confusion later on if there is any dispute about what is or isn't covered under your warranty. This will ensure that the business who did the work will take your complaint seriously. If you are unable to get a satisfactory response from the company you bought the double glazing from, then you might consider hiring an alternative tradesman who is endorsed by Checkatrade and is rated by their customers.
4. Hardware Damaged
A double-glazed window consists of two glass panes that are separated with spacer bars and a gap filled with an gas that is insulating. It is set in a frame constructed of aluminium or uPVC. Over time, the hardware may become loose. A door or window that won't open can be frustrating.
If a double glazing window is damaged, the cost of replacing it can increase. Window repair companies charge between $50-$80 per hour to take out the old window and replace it with a new one. The price is based on the size the window, its thickness, and the shape of the window, as well as quality and design of the frame and sash. The cost will also be affected by the window's type, double or single hung, or sliding. Repairing windows that are higher or require roof access may be more expensive because the technician will require extra safety equipment and precautions.
Installers will clean the new pane of a double-glazed window before sealing it. The installer will apply silicone around the edges to ensure that the seal is watertight. This is particularly important for windows that are located on the ground floor of a structure, as condensation may build up within the frame's bottom.
Another way to keep your windows looking great is to paint them regularly using a high-quality paint. This will protect them from fading due to UV radiation and will keep them looking fresh and shiny for a longer period of time. Double-glazed windows can make your house quieter, and increase its value by making it more energy efficient and comfortable for prospective buyers to live in.
5. Glass that is damaged
Double-glazed windows are designed to provide insulation for your home, keeping cold air out and warm air in. This helps reduce the amount of sunlight that enters a space and also helps protect your furniture from sun damage. But sometimes, glass can get broken. A pebble could ricochet off a lawnmower or a strimmer and break the pane. Or maybe a kid throws a ball into it, or an accident occurs. A broken window is an inconvenience.
A cracked or damaged pane is typically repaired with epoxy, or a similar product. Before applying the new epoxy it is important to clean and remove the old putty. You can soften the putty by using a cotton cloth soaked in linseed or a heating gun. Then you can scrape away the splintered glass and cut the edges to remove any traces of old putty from the frame.
Then, apply the epoxy to the crack, spreading it across the entire surface. It is essential to press it thoroughly into the crack. Allow the epoxy to dry completely before putting in the new pane. Be sure that the pane that you replace is the same size as the original. If you are replacing glass with leaded then gently bend the H shape lead back over it.
If you're not comfortable making these DIY repairs or if the damage to your windows is severe and beyond repair, then it's best to consult a professional. Checkatrade makes it easy to locate a trustworthy and skilled tradesperson. Simply type in your postcode and the details of the task and you'll be matched with local experts within a matter of seconds.