Your satisfaction with your Pella windows and doors is our highest priority. Should you have a problem with your Pella product that you believe could be related to the window’s installation, trying the following steps can help determine if the product is installed level, square and plumb.
First, take a level and place it on the frame of the product, across the bottom or sill. Do not place it on the sashes or panels of the product as it may not give an accurate reading. The bubble of your level should settle in the center, indicating the product is installed level.
Next, examine plumb of your window or door. Plumb means the window or door is straight down or up, vertically. To examine 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. Next, 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.
After checking plumb, you can look for bowing by measuring the unit horizontally across the top, middle and bottom. The three measurements should all be equal, plus or minus one eighth of an inch. It’s critical to always measure to and from the same 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 appear the same from top to bottom and left to right. Every 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 resolve a problem. If you find that you have stumbled upon one, or even a couple, of these issues, come by the Pella Window and Door Showroom in Portsmouth or give us a call at 603-427-0677.