How to Clean Milgard Windows

Milgard manufactures vinyl and fiberglass windows and doors. Milgard window care and cleaning is easy as these windows tilt in, so you can wash both sides without having to carry your cleaning supplies outdoors to do the external side. If you use the proper cleaners, and avoid those types the manufacturer advises against, you can keep your windows looking clean and clear for many years.

  1. Mix a tbsp. of mild dish soap in 2 gallons of warm water--use a clean plastic or metal bucket to hold this cleaning solution. Fill another clean bucket with clean rinse water.

  2. Wet a sponge in the solution. Wipe down the window frames, starting at the top and working your way down. If the sponge is heavily soiled before you finish wiping the whole frame, rinse it out in the soapy water before continuing.

  3. Dampen a clean sponge in the rinse bucket. Wipe this over the window frame to rinse off the soapy water. Dry it off with a towel.

  4. Wash the window glass with a sponge drenched in the cleaning solution. Start wiping the window from the top down. Follow with a clean sponge saturated with the rinse water.

  5. Wipe the window dry with a soft cloth and then clean the other side of the window.


  • Milgard warns against using any abrasive substances (such as scouring cleaners or scrubbing pads) on their windows, including the frame. In addition, they advise against using blades, putty knives, caustic chemicals and petroleum-based cleaners (such as solvents).