FAQs

Making an informed decision about the window and door products for your home can be a daunting task. Windsor Windows has some resources to help you.

• Visit our Windows & Doors 101 blog post for tips and resources. 
• Visit our Glossary of Terms blog post to help decipher the information you are looking at.
• You may also find it helpful to visit a Windsor distributor to see product displays.

The glass code identifies where and when the product was produced. The glass code may be found in two different places depending on when your window or door was produced. Click here to see where to find your glass code. 

Sometimes, what is perceived as a leak is actually condensation.

If you have determined that your window is door is actually leaking, the next step is to determine the location and cause of the leak. You may do this by wiping away any visible moisture from the interior of the window or door, and then determining the point of penetration. By identifying the breach, the product may be able to be repaired. If a repair isn't possible, the product may need to be replaced.

It is very important that your windows and doors be properly installed following the steps described in the instructions provided with your Windsor unit. Improper installation may cause your unit to perform poorly, which could reduce the life expectancy and/or void the warranty.

Rarely, a product may be defective. Under those circumstances, you would need to contact your local distributor to review for possible claim.

Never use a razor blade or other metallic object to clean or remove residue from your window or door products. These can scratch the glass, leading to obstruction of clarity and/or glass breakage.

For general cleaning of the glass surface, we recommend a vinegar-based solution (10% vinegar and 90% water) or commercially available ammonia-free and alcohol-free window cleaners. Clean the glass surface with a lint-free cloth or paper towel to clean. Wipe dry with a clean, dry, lint-free cloth or paper towel. Avoid getting cleaning agents on any non-glass components.

Occasional spot cleaning may be required to remove stubborn dirt or foreign material that has adhered to the glass surface. Apply a small amount of non-abrasive cleaner (such as Bar Keeper's Friend) or organic solvent (such as Goof Off) to a clean, dry, lint-free cloth or paper towel. DO NOT APPLY CLEANER DIRECTLY TO THE GLASS. On the area affected, work the cloth in multiple directs until spot is removed. Avoid getting cleaning agents on any non-glass components. Follow the general cleaning instructions to remove any cleaner residue.

The Manufacturer’s Certification Statement can be relied upon by taxpayers for verification that certain Windsor Windows & Doors products are eligible for certain tax credits identified in section 25C of the Internal Revenue Code as amended by the Inflation Reduction Act of 2022, and extended from January 1, 2023, through December 31, 2032.

Windsor can help by providing you with windows and doors that bring energy efficiency and comfort to your home. The average US family spends over $1,500 a year on energy bills. 

Even the most energy-efficient furnace and air conditioning unit cannot fix hot or cold glass. To help boost energy efficiency, glass manufacturers have created a glass known as Low-E, designed to increase energy performance and save you money. We've also created one of the most thermally-efficient glazing systems on the market.

To see the difference energy efficient glass can make on your heating and cooling bills, visit Cardinal Glass Industries website and try their Energy Calculator.

Today's tighter, more energy efficient homes can increase indoor humidity. Older homes had random gaps, which allowed for the release of warm, moist air and the replacement of cool, drier air. Newer construction methods do not allow this natural air-to-air exchange, thus trapping any internally created humidity within the structure. Elevated humidity can cause condensation to form on cold surfaces. Sweaty, frosted or icy windows are all forms of condensation problems. Most people assume these situations indicate a problem with the window, but in fact, these are symptoms of excess humidity in the home. Condensation on your windows could be an indicator that other moisture problems could develop.

Indoor humidity levels should be monitored to eliminate the possibility of condensation. The chart below illustrates recommended winter humidity levels:

Outdoor Temperature :: Indoor Humidity at 70° F

• -20 degrees F or below = not over 15%
• -20 degrees F to -10 degrees F = not over 20%
• -10 degrees F to 0 degrees F = not over 25%
• 0 degrees F to +10 degrees F = not over 30%
• +10 degrees F to +35 degrees F = not over 35%

These are recommended humidity levels, and may not be applicable for every household. Differences in glass types (LoE vs. clear) will allow for variances in humidity levels. Window condensation is a good indicator as to the maximum allowable humidity level. If your windows begin to sweat, the humidity in your home is too high.