We don’t know why they do this either.
Whether you are building from the ground up, remodeling, or just having new windows installed, they are going to come with stickers that seem impossible to remove and likely end up covered in construction splatter and debris. We’ve given up on trying to understand why companies that make windows deliver them covered in stickers that don’t come off of glass. What we can do is get them off without damaging the glass. Don’t risk scratching your new windows. Call Park City Window Care and let us get those new windows looking like they did in the brochure.