Sometimes, as a homeowner, you will want to do some home improvement to better the overall appearance of your house such as install new windows. Other times replacing windows is a necessity, such as if it were a broken window. While the idea of a do-it-yourself job of this type seems overwhelming to some people, it isn't quite as difficult to install a window as you might think.
Most windows that are available for purchase at your local home improvement store are already assembled, which makes things a lot easier. This should cut your job down by a considerable amount of time, although plenty of preparation has to be done prior to the actual installation of the window.
When you have your new window, examine the rooms in your house and survey areas to decide where you want to put it up. Once you know the location, you will have to mark it by drilling holes and placing nails through them to remind yourself of the spot. Afterward, go outside the house to where the spot is marked and use a saw to cut through the sidings on your house. You will know exactly where the location is thanks to the nails you put in. When you return inside the house, carefully remove all the drywall in the area.
Place the new window in the opening to ensure that it will fit. Make sure the opening you created is just slightly bigger than the window's measurements, as you want adequate space to seal it in and so that it can be opened and closed normally. If necessary, cut a bit more material away, bit-by-bit, so that the opening is of an appropriate size.
Put up weather strips to ensure that your window will be water-resistant. This will insulate the edges around the window tightly so that no water can enter and get into your home, which can cause damage. Apply flashing tape over the weather strips to keep it amply secure.
Measure the opening again, and be sure there is about a half inch at either side at the bottom. Install spacers in place by hammering in 6d nails. You can them begin the process of mounting the window, and you may want to ask for help from a family member or friend while you work.
Go back outside of your house and to the proper location. Place the bottom of the new window on the spacers and carefully fit the top portion in place. Keep the window centered; this may be where it would be good to have help, as your family member or friend can remain in the house to check the window from the inside. Hammer nails into the upper corners of the window through the opening to secure it. Place shims at the bottom sides and middle, and secure the window completely. Apply caulk, sealant or flashing to the inside and outside of the opening between the house and window, and make sure to follow the instructions that came with the window itself.
As a final step, paint the window frame if you want to add a decorative touch. Otherwise, enjoy your new window!