Can you buy replacement windows from a store or do you need to purchase through an installer?

You can purchase nearly any type of replacement window at the store. Most major home improvement stores, such as Lowes and Home Depot, carry standard-size windows. If it is a single window that you need to replace, it’s easy to drive to the local home improvement store, find the right size (or order it), and do the installation. However, most people choose to purchase their windows from installers.

• Better Deals. Some window manufacturers are contracted with installation teams who provide the best prices on a particular style or model of window.
• Wider Variety of Options. The variety in window styles, materials, energy efficiency, colors, panes, trim options and hardware is really quite staggering. Installers are aware of these options, and can customize your windows to meet your exact preferences.
  
• Custom Shapes. If your home requires custom shapes or unique windows, it is easier to make the measurements and order the windows through a window contractor.