Pella® Window and Door Installation – Expertise You Can Trust You’ve selected your replacement windows or doors. Now comes the second half of the replacement process: installation. Pella’s engineering experts have created exclusive installation methods that demonstrate their success year after year. Pella professionals have the most expertise installing our windows – so when you have a Pella Expert Installer from our Falls Church showroom replace your windows or door, you’ll know you have the best person on the job. The Installation: Our process Correctly measuring your openings is critical to the operational effectiveness and energy efficiency of your windows. Measuring must be exact to provide a precise fit. Removing your old windows is a step that needs to be done delicately to help prevent damaging your home’s walls. Our Falls Church Pella Showroom installers will responsibly dispose of your old windows or door for free. Ensuring a weathertight fit will help thwart air and water from getting in. Our experts take special care to ensure your window or door is level and square in the opening. We’ll also install insulation between your window or door and the wall and will adhere the product to the wall to minimize the amount of air and water that is able to enter your home. Cleaning up is the final step. Pella professionals will check each window for proper installation. Upon finishing, they’ll clean up the work area, vacuum and explain how to operate and take care of your new Pella windows or door. When you opt for replacement by our Falls Church Showroom, you’ll experience excellent customer service, clean and careful experts and peace of mind knowing that your installation was completed by the most experienced Pella professionals.