Service FAQ

Below is a list of common problems people encounter with their windows and patio doors. We’ve provided solutions and suggestions for each.  Click on a problem to see our recommendations.

INTERIOR PANE
On the edges or entire pane.
Condensation on the inside of your windows is a result of too much moisture in the air of your home. This condition is common in new homes, where it may take months for the moisture from paint and fresh building materials to dissipate.
This condition is also common in winter. Humidity levels in winter months should not exceed 30-35%. To maintain these levels in  your home, you may want to:

• check your venting,
• use a dehumidifier to remove moisture,
• turn your humidifier on furnace down or off,
• turn on exhaust fans during showers, and
• allow ceiling fans to run and circulate the air.

To receive a brochure about this condition, go to our Care & Maintenance section.

Oval in center.
An oval condensation ring on the interior glass surface is an indicator that interior and exterior panes of glass have collapsed toward each other. You need to repair o replace the window sash or door panel. Please Contact Us to submit a product issue.

BETWEEN THE PANES
If you replace the replacement window sash or door panel yourself, you will find instructions in our Installation and Replacement section.

When the seals along the outer perimeter of glass fail and allow moisture to penetrate the space between panes of insulated glass, your window or door will appear cloudy or fogged. Please check and make sure the glass does not have chemicals or pollutants on the outside surface. Once you confirm that the condensation is between the panes, you will need to replace the window sash or door panel. Please Contact Us to submit a product issue. If you replace the replacement window sash or door panel yourself, you will find instructions in our Installation and Replacement section.

1. Apply mild soap, mild detergent, LEPTYNE® solvent, mineral spirits or naphtha solvents to glass either by spraying or using a clean, grit-free cloth or sponge saturated with cleaning solution.
   CAUTION: When using solvents, do not use too much solvent. Damage to the glazing or insulating unit seals can occur.
   After cleaning the glass with solvents or mineral spirits, immediately clean the frame with soap and water to prevent staining.
   Follow solvent manufacturer's directions on label for toxicity, handling and flammability warnings.
2. Wipe the cleaning solutions on the glass in a circular motion, applying light to moderate pressure. Approximately three to five passes of the affected area may be required to remove the residue.
3. Rinse the glass surface immediately with generous amounts of clean water, removing the cleaning solution from the glass surface.
4. Using a squeegee or clean, lint-free dry cloth, remove water from the glass surface.
5. If glass residue is still evident, repeat steps 1, 2, 3 and 4.

Cleaning with toothpaste

1. Use a damp cloth and toothpaste for glue, pitch, and other less harsh contaminates.
2. Apply toothpaste to damp cloth and buff circular until clean

Cleaning with polishing compounds
For harsher contaminants and scratches, there are polishing compounds on the market such as cerium oxide, which works well for reducing fine scratches and scuffmarks. Rare Earth can be purchased at most hardware stores, glass repair centers, or directly from the manufacturer, Sommer and Maca Industries' sales department (1-800-323-9200 or 1-708-863-5446). Follow directions carefully and heed all product warnings. Andersen is not responsible for damage caused by misuse of cerium oxide or other damage that could happen in trying to remove scratches.