The answer to 'window odor' is that there are several common causes, including mold, mildew, and trapped moisture. Symptoms may include a musty or unpleasant smell, as well as visible signs of condensation or water damage on the windows. Solutions can range from simple DIY cleaning to more extensive repairs, depending on the underlying cause.
For minor window odors, homeowners can often address the issue themselves by thoroughly cleaning the windows and frames, using a vinegar or baking soda solution to remove any mold or mildew. However, if the odor persists or is accompanied by more significant damage, it's best to call in a professional cleaning service to properly diagnose and resolve the problem.