Pella® Window and Door Installation – Expertise You Can Trust You’ve chosen your replacement windows or doors. Now comes the second component of the process: installation. Pella’s engineering experts have devised exclusive installation methods that demonstrate their success year after year. Pella professionals have the most experience installing Pella windows – so when you have a Pella Expert Installer from our Gaithersburg showroom replace your windows or door, you’ll know the job was done right. The Installation: Steps for success Accurately measuring your openings is critical to the operational success and energy efficiency of your windows. Measuring must be exact to ensure a precise fit. Removing your old windows is a task that needs to be done delicately to help prevent damaging your home’s walls. Our Gaithersburg Pella Showroom expert installers will responsibly dispose of your old windows or door at no additional cost. Ensuring a weathertight fit will help thwart air and water from getting in. Pella’s experts take extra 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 keep the elements from entering your home. Cleaning up is the final step. We will check each window for proper installation. Upon finishing, our installers will clean up the work area, vacuum and explain how to operate and take care of your new Pella windows or door. When you choose replacement by our Gaithersburg Showroom, you’ll experience exceptional customer service, clean and careful experts and peace of mind knowing that your installation was completed by the most experienced Pella professionals.