Your satisfaction with your Pella windows and doors is our highest priority. Should you have a problem with your Pella product that you think may be related to the window’s installation, trying the following steps may help determine if the product is installed level, square and plumb.
First, grab a level and set it on the frame of the product, across the bottom or sill. Do not place it on the sashes or panels of the product because 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, put your level on the two vertical side jambs on the exterior face to ensure the product is plumb from the inside out. After that, you’ll check for plumb from left to right by placing the level on each of the two sides. The bubble should fall in the middle on both sides, signifying the product is installed plumb.
When you finish checking plumb, 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, allowing 1/8 inch of leeway. It’s important to always measure to and from a common point on both sides for consistency. After this, see if your window or door is square by measuring from one corner to the other in an X fashion on the outside of the product. The measurements should be within 1/8 inch of each other for the product to be
You could also inspect the reveal, where the sash meets the frame. The gap should look the same from top to bottom and left to right. Each side of your product should appear the same, demonstrating the product is installed level, square, and plumb.
Doing a little troubleshooting on your own can present helpful information to solve a problem. If it turns out that you have stumbled upon one, or even a couple, of these issues, come by the Pella Window and Door Showroom in Overland Park or give us a call at 913-246-5101.