If your windows require repair, it's important to be careful when working. Wear safety goggles and gloves to shield yourself from glass shards.
Applying a plastic covering over the crack is a simple fix for a cracked window. This will prevent rain, snow and insects from entering your home.

Cracked glass
Cracked window glass not only make your home less attractive but also allow drafts and other elements to enter the house. Whether the cracks were caused by an collision (like a baseball or soccer ball) or are the result of stress, for example a sudden change in temperature it is crucial to have them repaired as soon as possible to prevent further damage and ensure your windows are operating correctly.
Use clear tape to cover the cracks in your window, even if it's not damaged. It's a simple and inexpensive solution that can provide protection from water, dust bugs and other particles, as well as keeping out the elements.
If the crack is large or appears to be getting worse, it's recommended to seek out a professional. A professional glazier will determine the root of the crack and recommend the most effective repair procedure.
A crack caused by an impact is the most frequent type of window break typically caused by a sharp object striking your window with enough force to fracture it. These cracks are usually accompanied by a starburst pattern of lines and broken pieces that could be dangerous if they fall loose. The crack could compromise the gas in the panes of your double-pane window and reduce its energy efficiency.
Another type of crack is a stress crack, which develops gradually as time passes, due to extreme temperature changes or other environmental elements. These cracks begin around the edges of your window and can eventually expand into full-blown break.
A pressure crack is a more serious crack however it can be fixed. It's usually a curvy line that extends across one or more sides of your window. It could be the result of high or low air pressure, which can cause contraction or expansion of the glass.
If you're ready to take further than nail polish and tape there are a few other products that can be used to repair cracks in your window glass. A product such as Glass Repair Film is a bit more expensive but will offer a bit more protection and a longer lifespan for your windows. If you'd prefer to make it yourself epoxy is an adhesive that can be used to fill in cracks and prevent further damage. It can make your window appear as if it never had any cracks in it at all.
Leaking Windows
If you notice an area of dampness under your window, or notice that the wood around it is weak or rotting, it may be time to start a windows repair. Mold and mildew thrive in humid conditions and can cause numerous issues in your home. They can cause indoor air pollution, sagging walls, and even worsen allergies. If not addressed, they can also cause structural damage to the home.
If the water is coming in from the outside or is visible through the frame it's a good idea to get a professional to assist repair the issue right away. window repair ignore leaking windows. They are a leading cause of mold and structural damage.
In many cases, a simple caulking layer is all you need to stop the leaks. Before applying the new caulking, it's necessary to clean the area and get rid of any caulking you have already applied.
It is also important to examine the weep holes in the frame to ensure they're not blocked by debris. These holes are designed to drain rainwater, but they can also become blocked in time due to insect corpses or other debris.
Examine the seal between your double-paned window and the metal frame. This will help to maintain a barrier of gas between the panes, making windows more energy efficient. The seal could wear down with time and allow water to leak into the house.
Water stains on ceiling and walls are another indicator of leaks. The drywall will turn discolored once it is saturated with water. There may also be peeling paint caused by the effects of the water weakening its adhesive properties and pulling away from the wall.
Faux Muntins Mullions
In the past muntins (or glazing bars as they are called in the UK), separated and held the panes of classic multi-paned windows. Since larger expanses of tempered glass became available after WWII They went out of fashion. Today, they're mainly utilized as a decorative element in some older homes.
Most of the time just a small or a single group of these wooden supports may get damaged by wind or rain and cause cracks to the window. The good thing is that you are able to repair most of these rotting or brittle elements.
Clean the affected areas using a cloth and an ammonia-based cleaner that doesn't leave a traces. Then, remove any loose or rotting parts and use an exacta-knife reduce the intersections between vertical and horizontal painted window muntins. Once you've trimmed the intersections, tape off the lower part of the window frame using painter's tape. Apply a thick coat of white paint to the areas that you lightly painted in the first stroke. Allow the paint to dry completely before removing the tape and applying another coat.
If the issue is more severe such as an hourglass-shaped crack in the middle of the window, it's recommended to replace the sash. In these situations it is essential to locate a replacement window that matches the style and size of the existing one.
To save money, you can also install an attached grid window. These windows consist of a complete glass pane that has a series of muntins, which are glued to the surface. This creates a split appearance. They're not as energy efficient as traditional windows, however.
Installing a drip cap will stop water from getting into the window frame. You can find a variety of these aluminum drip caps at the majority of home centers for around $20. These are much easier to install than replacement windows sashes and provide the same functionality as a genuine mullion, or muntin.
Broken Sashes Frames
A damaged window sash must be a signal that you must seek help. A damaged sash, ignored, could lead to water leaks, wood rot, and other serious issues to the frame and sill. If you have a broken sill, you must replace it as soon as possible to ensure that your window is sealed and working.
Often, the problem is caused by worn or improperly installed the sash cords. It's easy to replace these cords in the majority of double-hung window models. First, you'll need to remove the metal tabs holding the sash. Then, push up on the side of the sash (it isn't important which side) and then pull toward the opposite side to pull it out. You'll need to remove the strip that is what separates the sash from other to allow access to the area where the sash cords are located.
It is important to compare the metal tabs of the old sash to those of the new one. If they're not the same, it will be difficult to place the new sash in its proper slot and will affect how well the sash functions. Fortunately, this issue can be fixed by placing tabs in the correct locations on your new window.
In addition to the sashes, you'll also be required to inspect the frame of your windows for problems or rot. This is a good thing to check regularly, since wood will shrink and wear down as time passes. If you notice any visible damage it should be addressed as soon as possible to prevent the development of a larger issue.
If your window frames are in bad condition you'll need to treat them with a homemade preservative made with half mineral spirits and half boiled linseed oil. After the treatment has dried for a total of two days, you can then re-finish your frames using high-quality latex paint. A fresh coat of paint will protect your window from the elements as well.