It could take anywhere from 5 days to 3 weeks for your new insert to arrive, so don’t wait until the last minute before you actually have the time to tackle this project to place your order. Most front door window inserts come in standardized widths of either 22 inches (56 cm) or 24 inches (61 cm), which means you should have no problem finding one that’s a proper fit. [2] X Research source You’ll need to order a new glass panel as well if the old window is cracked or shattered.
If possible, recruit an assistant to help you disassemble the door and carry it over to your work station. This may seem like a lot of trouble, but you’ll have a much easier time maneuvering the window inserts in and out of place while the door is detached.
Hold onto your original screw covers, just in case. You may have to reuse them once you’ve successfully installed your new window insert. Depending on the size and style of your existing insert, you may encounter 10-15 screws in total.
Keep a firm grip on your utility knife and don’t let it deviate from the frame. If it slips, you could end up scarring the paint on your door or even slicing into the underlying material.
For the sake of safety, it’s a good idea to pull on a pair of gloves anytime you’re working with glass, even if it’s still in one piece. [8] X Research source
Do this for any adhesive residue you find on the window itself as well if you plan on only replacing the outer frame. A good cleaning will ensure that the opening is nice and clean and ready to accept the new insert.
You’ll only need to perform this step if your replacement insert didn’t come in one piece, or if you’re assembling a new frame around the original glass panel. There may be no need to apply an adhesive if the new insert you’ve picked out comes pre-sealed or features a simple screw-in design. Still, it never hurts to have a little extra security. [11] X Research source
If you’re having trouble keeping up with two separate frame halves, remember that the bulkier side of the frame will always go on the outside of the door.
Be especially delicate here if you’re attempting to maneuver the door by yourself. You can skip straight to this step if you’re just installing a brand new one-piece or preassembled insert.
Avoid overtightening the screws, as this could cause damage to them or the molded screw holes. Only use the screws provided with the new frame. There’s no guarantee that the old ones will fit correctly, and it’s possible to strip the screw holes by trying to force them in. [15] X Research source
If you have an assistant on standby, they’ll be a big help during this step. Take your time and work cautiously. The last thing you want is to lose control over the door and shatter your brand new window insert!
If you decide to use a paper towel, make sure it’s not the cheap kind that has a tendency to shed tiny bits of paper. One of these will likely just leave the window looking dirtier than when you started.
