The answer to 'window discolored' is that window discoloration is a common issue that can be caused by a variety of factors, including mineral buildup, hard water stains, environmental pollution, and improper cleaning methods. Symptoms may include hazy, streaked, or cloudy appearance on the glass.
For mild discoloration, homeowners can often address the issue through DIY cleaning methods like using a vinegar-based solution or specialized window cleaners. However, for more stubborn stains or extensive damage, it's best to call a professional window cleaning service. They have the right tools and techniques to safely and effectively restore the windows without causing further damage.