The answer to 'window buildup' is that it is a common issue caused by a buildup of dirt, grime, and mineral deposits on the interior and exterior of windows. Symptoms include hazy, streaky, or cloudy glass that reduces visibility and light transmission. The main solutions are regular window cleaning and treatment to prevent future buildup.
For light buildup, homeowners can often address this with DIY window cleaning using a squeegee, microfiber cloths, and a mild detergent or vinegar-based solution. However, for heavy buildup or hard water stains, it's best to call a professional window cleaning service that can use specialized tools and techniques to safely and effectively remove the buildup without damaging the windows.