Pella® Window and Door Installation – Expertise You Can Trust You’ve chosen your replacement windows or doors. Now comes the second component of the replacement process: installation. Pella’s engineering experts have devised exclusive installation methods that demonstrate their success year after year. Pella professionals have the best experience installing Pella windows – so when you have a Pella Expert Installer from our Saint Louis showroom replace your windows or door, you’ll know the job was done right. The Installation: Steps for success Properly measuring your openings is critical to the operational effectiveness 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 avoid damaging your home’s walls. Our Saint Louis Pella Showroom installers will properly dispose of your old windows or door for free. Ensuring a weathertight fit will keep air and water from getting in. Pella’s 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 secure the product to the wall to minimize the amount of air and water that is able to enter your home. Cleaning up is last but not least. Pella professionals will check each window for proper installation. Upon finishing, our installers will clean up the work area, vacuum and walk you through how to operate and take care of your new Pella windows or door. When you opt for replacement by our Saint Louis Showroom, you’ll experience superior customer service, clean and careful professionals and peace of mind knowing that your installation was completed by Pella’s best.