This service is intended to provide anyone who is just trying to see if they have a budget for their project, without having anyone come to your home. Please refer to this replacement window measuring guide to ensure that the estimate you receive is fairly accurate. Our window prices are determined by united inches (UI). This is calculated by adding the width plus the height of the opening. Although the price changes every few inches, it is very important to follow the measuring guide, so we can send you a fast "ballpark" estimate. Unfortunately, due to potential innacuracy we cannot confirm any contract prices without a final measurement of the project by an HIS representative. If you are satisfied with your estimate, we can schedule an appointment at your earliest convenience for a product demonstration to further assist you. If you experience any difficulties with this form please email support@homeinstallservices.com.