First of all, you need to make sure that the windows that you choose match the style of your home, because if they do not, they will not look right and can even reduce the value of your home. Some window stores have designers that will either come to your house or look at pictures of it to help you make a decision as to what window will be right for you.

You also need to ask how long the window's installation will take and you need to ask for the price of the installation. Most of the time the cost of the installation is not included in the price of the windows when you purchase them and many people do not realize this. It is not exactly a "hidden cost", since if they do not tell you that the installation is included, you should not assume that it is.

Depending on where you live, you may be subject to local laws that can dictate what kind of windows you can put in your home. Ask about this first to make sure the kind you choose are legal.

The windows that are the most sturdy are welded together instead of mechanically fixed. Mechanically fixed windows are not as expensive as welded ones, but welded windows will last longer.

You should also be aware that some retailers offer special deals that allow you to receive a window for free if you purchase a certain number of them. If possible, you should take advantage of this by purchasing all the windows that you will need at once. Try to shop around at least at two or three different window retailers to make sure that you are getting both the best financial and quality deal.

As long as you purchase the windows and have them installed by a company known for quality service, you should not have any maintenance or replacement issues. There should be a 10 year warranty on the windows that you purchase, but just in case, you should ask the company about all warranties or guarantees that that particular company might offer. But be sure that you hire someone you are comfortable with.