Condensation in window panes can damage the structure and seal of your double-pane windows. If you're an owner of a home or building with a problem like this, there are a variety of alternatives to consider before you commit to a more permanent solution.
Find the height and width of the frame opening. Subtract 1/8-inch from each measurement to order a glass pane that's slightly smaller than the size you want, which will make it easier to install and provide the room for seasonal expansion and contraction.
Cracks
A pebble that is thrown by your lawnmowers crashing into the window, a beloved vase that is tipped over by your cat, or a sudden abrupt change in the weather can cause cracks to your windows. Cracks like this can be repaired at home if you're willing to make a few efforts. If the crack is larger than an inch or if you have a single paned window, or a double-paned window with a hole in both panes, then it's best to contact an expert.
A window that's cracked but small or near the edge of the frame may be fixed by putting a strip of clear packing tape on each side of the crack. This will help keep the crack from expanding and also seal the gap to the outside, keeping out wind, rain, bugs and other debris. This solution is only temporary since glass cracks tend to expand over time.
Use a two-part epoxy for larger cracks. First, thoroughly clean the area and remove any broken glass. Then, mix the epoxy in a well-ventilated location on the surface of a piece of cardboard or a paper plate. Typically, the mixture is made up of a 50/50 mixture of resin and hardener, but you should follow the instructions on the product you're using. The epoxy becomes thicker quickly after mixing and should be applied immediately. Apply the adhesive and smooth it into the desired location using your putty knife. Allow it to dry for five minutes.
Another DIY solution to fix cracks is to use nail polish. The nail polish works in a similar way to super glue. It will fill and seal the cracks, preventing their spread. Make sure to allow the nail polish to completely dry, as washing or cleaning the area may cause it to come off. You can also use the caulking gun for filling any gaps between your frame and glass. This is essential, especially for windows that are aging. These gaps can allow water and other elements to enter the home.
Leaks
Whether it's from a wayward baseball or an unplanned furniture move or a mishap at home, indoor accidents are among the most common causes of cracked windows. Likewise, outdoor incidents such as strong winds can blow the pane out of its frame. Caulking is a method to repair cracks in glass. This repair procedure can be achieved using silicone or polysulfide caulking, depending on the kind of glass used and the materials used to make the frame.
This repair to the window glass is best done when the weather is dry and warm. This will permit you to apply the sealant in a dry area and give it time to set before it is exposed to rain. Before you begin the caulking process, be sure to examine the window from inside and out to discover where the leak is coming from. Check that the weep holes on the frame are free of any debris or insects' corpses. This will stop the water from getting in.
If you notice an indication of water that the window has a leak and you want to fix it, use a prybar to remove any existing trim to get a clear view of the joint between the frame and the sash. If you see the signs of rot, the area will need to be filled with wood filler before caulking is applied. After cleaning and sanding the surface, caulking can be applied. It should dry over night.
A structural leak is caused by a damaged or rotten window frame. This is harder to spot because it's not always directly beneath the window. If you notice damp patches on the frame of the window, it is likely that there's an opening in the wall allowing water to enter and pool up to below the studs.
In this case, it is best to speak with an expert who will assess the situation and provide recommendations on what to do. If the problem is severe, then it's probably an ideal idea to replace the window altogether and enable you to enjoy better energy efficiency within your home.
Broken Panes
It is recommended to call an expert if your window glass is broken into shards as a result of the force of a storm or a baseball thrown at you by your children. Most DIYers can replace the single pane of a small, narrow window. However replacing double-paned windows will require special tools that are best left to experts.
When a double-pane window breaks, it creates an energy inefficient gap. To stop the cold air, water, and other critters from making their way into your home and adding to your energy bills, call a window repair professional to replace the entire unit instead of just the broken piece of glass.
The first step in repairing double-paned windows is to remove old glass from the frame. Wearing gloves, eye protection, and other protective clothing, you can break the glass shards into pieces that can be manipulated. After you have removed the glass, use a putty knife to scrape off the glazing compound and glazing points. This may be messy, but it's important to ensure that your new glass will fit properly within the window frame.
Use a scraper after the wood that is bare has been exposed to smooth it. If needed a chisel could be used to sever any areas of wood molding that are too tight or glued to the frame of the window. To stop mold and rot, seal the wood with linseed or clear window caulk.

While you can put a single windowpane in a wooden frame with a little practice, double-glazed windows require the help of a professional to avoid complications. Double-glazed windows differ in terms of size from single panes, and need to be produced by a professional to ensure they fit properly.
Homeowners can decide to replace window glass in the event that they observe condensation or moisture between the windowpanes. They may also consider doing so in the event that their energy bills are more expensive in summer or winter, or if there are regulations regarding old windows. Replacement of windows can be an affordable solution if you're considering improving the appearance of your house or upgrading to energy-efficient windows.
Replacement
Many homeowners choose to replace their window glass when it's cracked or broken or when they have single-pane windows that are old and dated. It can be costly, but can also increase energy-efficiency and reduce noise within the home. It is recommended to contact an expert to install your new windows to ensure that the work is done properly. A professional is familiar with the various types of glass available and will choose the appropriate one for your home. They also know how to properly install it which will save you money in the long run.
If you notice a crack in your window pane, the first thing to do is to tape it using masking or packing tape, stretching it over each side of the crack. This will stop the crack from spreading while you repair it. After that you can apply clear nail polish to the area to help keep it in place and protect it from the elements. You can apply up to three layers of nail polish, and let it completely dry between each application.
You can use an utility knife to cut off old glazing putty. You'll also need to remove any nails or clips used to hold the pane. After you have removed the old pane clean the edges of the frame and glass to ensure that there aren't any pieces of glass left. After that, you can install the window pane. Use silicone caulk if there is a gap in order to help the glass adhere to the frame.
The same process can be used for windows that are larger, but it might be more difficult. You will need to use a ladder to access windows on the second floor. It is also possible to take out decorative elements such as muntins or mullions that are used to separate the glass panes for aesthetic reasons. It is best to hire a window repair or replacement professional for this type of work, because they'll be able to handle these issues in a safe manner and quickly. They are also familiar with the proper methods for removing waste, which can keep it from falling onto pets or family members.