Your satisfaction with your Pella windows and doors is our priority. Should you have a problem with your Pella product that you suspect may be related to the window’s installation, completing the following steps can help determine if the product is installed level, square and plumb.
First, get a level and put it on the frame of the product, across the bottom or sill. Do not set it on the sashes or panels of the product as it could give an inaccurate reading. The bubble of your level should rest in the center, demonstrating the product is installed level.
Next, test plumb of your window or door. Plumb means the window or door is straight down or up, vertically. To check for plumb, set your level on the two vertical side jambs on the exterior face to ensure the product is plumb from the inside out. Then, you’ll check for plumb from left to right by placing the level on both sides. The bubble should fall in the midpoint on both sides, representing that the product is installed plumb.
Third, you can examine for bowing by measuring the unit horizontally across the top, middle and bottom. The measurements of these three places should all be equal, plus or minus one eighth of an inch. It’s crucial to always measure to and from a single point on both sides for consistency. After this, see if your window or door is square by measuring from corner to corner in an X fashion on the outside of the product. The measurements should be within 1/8 inch of each other to indicate the product is
You can also examine the reveal, where the sash meets the frame. The gap should appear the same from top to bottom and left to right. Each side of your product should appear the same, indicating the product is installed level, square, and plumb.
Taking the time to do a little troubleshooting on your own can provide helpful information to resolve a problem. If it is clear you have found one, or even a couple, of these issues, come by the Pella Window and Door Showroom in North Carolina or give us a call at 866-539-4196.