How to Clean Double-Pane Windows

How to Clean Double-Pane Windows
Published: May 8, 2009
Updated: Nov 20, 2021
3 minute read

Arm yourself with a window washing solution, squeegee and clean rags to quickly and efficiently clean any glass window. Single, double or even triple pane, it doesn't matter. Windows require regular cleaning on both the inside and outside to let the sun shine in.

Things You Will Need

  • Vacuum cleaner with upholstery brush attachment
  • Gloves
  • Safety goggles
  • Measuring spoons
  • Measuring cup
  • Vinegar
  • Spray bottle
  • Dishwashing liquid (optional)
  • Towel
  • Squeegee
  • Rags
  • Old toothbrush

Inside of the House

  1. Vacuum the window glass, surrounding frame and windowsill thoroughly to remove dust and dirt. The brush attachment for upholstery helps dislodge dust, debris and spider webs on and around the window.

  2. Put on gloves and safety goggles before mixing and using window washing solution.

  3. Mix 1 tablespoon of household-strength vinegar with 1 quart of water in a spray bottle. If the windows are extremely dirty, add 1/2 teaspoon of dishwashing liquid to the solution. Shake well to mix the ingredients.

  4. Place a towel on the windowsill to protect the paint from the window washing solution. Spray the window thoroughly, starting at the top and working your way down.

  5. Remove the solution with a squeegee, pulling it from the top down to remove the fluid. Wipe the squeegee with a rag between each downward stroke.

  6. Dry any remaining wet spots on the window glass with a clean, soft rag.

  7. Dry around the window with a clean rag and remove the towel from the windowsill. Wipe the windowsill if necessary to remove any remaining window washing solution.

Cleaning the Outside

  1. Hose the window and the surrounding trim with water to remove any loose dirt and spider webs.

  2. Spray the window thoroughly with window washing solution, working from the top down.

  3. Move the squeegee horizontally to remove the solution from the glass, starting at the top left corner and working from left to right. Wipe the squeegee with a clean rag between each stroke to remove the dirty solution.

  4. Wipe around the trim and edges of the window to remove any remaining solution. Dry any damp spots with a clean, soft rag.

  5. Go back inside and look out the window. If there are any streaks, you can identify if they're on the inside or outside by the direction. Vertical streaks are inside, and horizontal streaks are outside.

  6. Repeat the cleaning process to remove any remaining dirt or streaks on the window.

  7. Check the weep holes at the bottom of the window and ensure that they aren't clogged with debris. Brush out any dirt with an old soft toothbrush.

The Drip Cap

  • On a bright, sunny day, if the curtains are open but the sunlight seems dim, it may be past time to clean your windows.
  • Single, double or even triple pane, it doesn't matter.
  • Put on gloves and safety goggles before mixing and using window washing solution.
  • Spray the window thoroughly with window washing solution, working from the top down.
  • Wipe the squeegee with a clean rag between each stroke to remove the dirty solution.
  • Dry any damp spots with a clean, soft rag.

Photo Credits

Artem Kononenko/Demand Media

Artem Kononenko/Demand Media

Artem Kononenko/Demand Media

Artem Kononenko/Demand Media

Artem Kononenko/Demand Media

Artem Kononenko/Demand Media

Artem Kononenko/Demand Media

Artem Kononenko/Demand Media

Artem Kononenko/Demand Media

Artem Kononenko/Demand Media

Artem Kononenko/Demand Media

Artem Kononenko/Demand Media

Artem Kononenko/Demand Media

Artem Kononenko/Demand Media

Artem Kononenko/Demand Media

Artem Kononenko/Demand Media

Ruth de Jauregui

With degrees in fine and commercial art and Spanish, Ruth de Jauregui is an old-school graphic artist, book designer and published author. De Jauregui authored 50 Fabulous Tomatoes for Your Garden, available as an ebook. She…

Sponsored
HomeSteady Logo

HomeSteady is the ultimate guide for all your household needs, from cleaning and HVAC to electrical, DIY and maintenance.

Property of TechnologyAdvice. © 2026 TechnologyAdvice. All Rights Reserved

Advertiser Disclosure: Some of the products that appear on this site are from companies from which TechnologyAdvice receives compensation. This compensation may impact how and where products appear on this site including, for example, the order in which they appear. TechnologyAdvice does not include all companies or all types of products available in the marketplace.