How to Repair a Bow Window
Residential architecture is not complete without projection windows. They enhance the view and let in plenty of natural light. However, they can be costly, especially if the frames are made of wood or if you have an older house.
Even for those with years of experience in home construction they can be difficult to put in. They typically require structural modifications to walls and workaround electrical wiring.
Support Brackets
Bow windows can look great in a home, but they're prone to sagging if they're not well supported at the top and bottom. It could be due to them being heavy or, even if not the case, their outward-facing design makes them more vulnerable to gravity.
The most effective way to fix a sagging bow window is to use fitting support brackets that are placed under the base. These kinds of support brackets can be found at hardware stores and can be pushed up slightly underneath the base of the window, especially where the sagging is occurring. This will distribute weight from the window to the brackets and make it less likely to slide.
It is also crucial that the brackets are properly attached to the wall. If you're using screws that are meant for such brackets and you want to screw them firmly into the wall, and this will help to ensure that they are held securely in place, ensuring that they don't fall away from the wall.
Another good solution for a sagging bow window is to fit a support cable under the top of the window. This will help remove some of the weight from the top of window and spread it across the wall into the foundations. This will reduce the sliding of the window, and it should be possible to do this without having to make any major structural changes to the building.
If your bow window is sagging at the middle, it's likely that the hinge at the top is misaligned with other frames. This is because the hinge is required to support a heavy window, and it is possible that this causes it to flex over time and isn't aligned properly with the frame.
Support Cable
Bow windows can provide the space of a room and let in natural light. However unlike bay windows, which are supported by foundations, bow windows rely on the weight of their frames and platform boards to stay upright and can cause falling over time. This can make windows hard to open or close, and could cause them to become unbalanced. It is important to identify the reason for the bow window being sagging, so that you can correct it.
The first step in fixing a bow window that is sliding is to put in a support cable. The metal rods are fastened between the frames of the windows. One end is fixed to the eye located at the top of the window, while the other is secured to the wall (this could be either a joist or stud depending on the way your home was constructed). If you fit cables to the bottom of your bow window, it must be tightened so that it partially lifts the sag from the window. You can even fit a pair of these cables, so that each takes half the load off the window, which will prevent the windows from becoming too tilted.

If the bow window is sagging at the top, it's likely that the frame over time has cracked or warped, making it difficult to open and close. This can affect their energy efficiency and may also indicate that the frame has an issue with draft or leaks. In this situation it is recommended to repair the bow window prior to the damage getting worse.
It is important to remember that repairing or replacing a bow window can be an extremely complicated task, and will require some structural work to your home. It is recommended to hire an experienced window installer if you're working on a historic home. They can help you decide whether you'd like to replace your bow window and ensure that the installation is done in a professional manner.
Fixing the Cable
Bow windows aren't built into the house as bay windows and can be prone to sagging. A support cable absorbs some of the weight of windows with bows and spreads it down the walls into the foundation. bow double glazing is available at your local hardware store. It includes an extension cable and the screws to secure it to the wall. A kit is a much cheaper option than purchasing the cable on its own.
You will first need to identify the area where the sagging is occurring. If the sagging is at the bottom of the frame you might need to replace the sillplate, whereas the bowing outwards might require additional brace bars. You'll need to decide whether the bow window is operable or not. Operable windows require the sash to be lifted, and this can add significant weight.
After you have identified the area where sagging is taking place then you'll need to install the cable. You must ensure that the cable is secure enough to lift a portion of the weight of the window, but not so tight that it snaps. The installation of two cables is a good idea since one cable can support half the weight of the window and the other will take the rest.
Installing a new header may be necessary when the sagging is close to the ground. The header is made up of two two-by-eights that can be very heavy. The header should be precisely measured and calculated to fit between the king studs. To lift the header into place it is recommended to have plenty of people in your arsenal.
It is necessary to add insulation to the bow window area, and you should also close any gaps in the drywall surrounding it. This will decrease the amount of cold air that gets into your home. It is also necessary to install soffits on the outside of your home. This can cost anywhere between $250 and $765, depending on the size of your home.
Fixing Brackets
Bow windows can add a sense of distinction and elegance to any home. They are similar to bay windows, but don't have to be built into foundations. Instead, they can be hung on the wall just as any other window. If they're not well maintained or supported, they may start to lose their elasticity over time. This is a typical issue that can be corrected, though it will require a bit of support to do so.
First, you must identify the location of damage. This can be done by looking at the bottom of the window. It is likely that the sagging resulted from the lack of support at the bottom of the window and this will be what you need to address by addressing the issue.
To do this, you'll have to add additional support brackets. These brackets should be put beneath the bow's lower windows. They should resemble L-shaped shapes with thickened middles. The next step is to attach the brackets to your wall and then attach a support cord to them. The cable will take part of the weight of your bow window and distribute it across the wall to the foundation.
Once the cable is in place, you'll need to tighten it. Be sure to make the cable as tight as you can but not enough that it damages the glass or window frame. Once it's tight you'll be able to see that the bow window has been lifted a bit.
If the window continues to sag and sag, you might need to put in more brackets or a cable to support it on the other side. Do your research before you begin fixing the bow window. It is recommended to consult with a professional prior to making any significant changes to the structure of your house.
They are beautiful additions to any house, but can be difficult to maintain. It is recommended to clean your bow or Bay windows on a regular basis and conduct annual inspections. You should also clean the hardware to remove dirt and grime. Lubricate moving parts in order to prevent sticking and squeaking.