Streaks can come from cleaning residue, mineral deposits, or dirt left on the glass. Note where the streaks appear and whether they return after cleaning; that can help you decide what to do next.

What may be causing the streaks

Residue from cleaning products or water can leave marks, and dirt or pollen on the glass can make windows look streaky. Streaks alone don’t confirm the cause. You can safely note whether they’re on the inside or outside and whether they’re concentrated in one area.

When to get help

Consider professional cleaning if streaks remain after ordinary cleaning, keep returning, or affect windows you can’t safely reach. Don’t climb or use a ladder to reach exterior glass; leave difficult-to-access windows to a professional.

Find window-cleaning help in Pasadena

Window Cleaning is the relevant service for streaks that appear to be on the glass. Use the service page to reach provider options for Pasadena.

Need help with this? Find a local provider