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DIY Window Installation Troubleshooting in Beltsville, Maryland

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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 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, get a level and place it on the frame of the product, across the bottom or sill. Do not set it on the sashes or panels of the product because it may produce an inaccurate reading. The bubble of your level should fall in the center, signifying 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 test for plumb, place 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 each side. The bubble should fall in the midpoint 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, allowing 1/8 inch of leeway. It’s important 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 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 to indicate the product is installed square.

You can also examine the reveal, where the sash meets the frame. The gap should have the same look from top to bottom and left to right. All sides 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 offer 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 Beltsville or give us a call at (301) 327-3013.