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DIY Window Installation Troubleshooting in Haverhill, MA

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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, completing the following steps may help determine if the product is installed level, square and plumb.

First, get a level and place it on the frame of the product, across the bottom or sill. Do not put it on the sashes or panels of the product since it could give an inaccurate reading. The bubble of your level should rest in the center, indicating the product is installed level.

Next, check plumb of your window or door. Plumb means the window or door is straight down or up, vertically. To test 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. Next, you’ll check for plumb from left to right by placing the level on each side. The bubble should fall in the middle on both sides, signifying the product is installed plumb.

After checking plumb, you can examine for bowing by measuring the unit horizontally across the top, middle and bottom. The three measurements should all be equal, plus or minus 1/8 inch. It’s crucial to always measure to and from a single point on both sides for consistency. Finally, see if your window or door is square by measuring from each 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, indicating the product is installed square.

You may 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, 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 solve a problem. If it is clear you have stumbled upon one, or even a couple, of these issues, visit the Pella Window and Door Showroom in Haverhill or give us a call at 978-291-7441.