The answer to 'when to clean window cleaning' is that most experts recommend cleaning windows 1-2 times per year, typically in the spring and fall. This helps maintain clear, streak-free windows and prevents buildup of dirt, grime, and water spots. Cleaning in the spring and fall ensures you get the best visibility during the peak seasons of summer and winter.
For best results, clean windows on an overcast day or in the shade to avoid streaks from drying too quickly in direct sunlight. Use a squeegee, microfiber cloth, or lint-free paper towels to wipe away dirt and residue. You may need to use a mild detergent or window cleaner, but avoid harsh chemicals that can damage window seals and frames.