Casement windows are windows that open via hinges rather than sliding in a frame. No other window can be opened as far. When you open a casement window, you swing the entire window open. Casement windows are very difficult to break into. Casement locks are hook-shaped, and these hooks are embedded within the frame, making them untouchable. They are not hard to remove, but you do need to know what steps to take. Below is a quick guide to casement window removal.

Types of Casement Windows

The casement style of window can be either single or double, with screens on the interior. Single casements are usually best for openings which are taller than they are wide. The double casement type of window is more of a squarer shape than the single style. It has hinges on either side of the frame and both sashes will swing open.

There are also casement windows that swing inwards. Manufacturers and homeowners consider the outwardly opening style to be the best because it brings the benefits of superior ventilation. If the window sashes swing open outwards they can be used to catch any passing breeze and so direct the cooling airflow into the home.

Never remove the old windows before buying the new ones. So the first thing in the replacement process is buying the right casement windows. The first thing you need to do is order your new replacement windows. You can't remove the old windows until you have the new ones.

Measure for the Replacement Windows

Crank the window open from inside and you will see a metal lip approximately 1/2" wide extending from your drywall on all four sides. This part of the frame stays in place, so the new window is going to fit inside those lips.

To get your width dimension, measure left to right from lip to lip, then subtract 1/4" to get in. Do the same for the height. Let's say you measure 35 3/8" width and 38 3/8" on the height lip to lip. You would order your new window 35 1/8" X 38 1/8".

Removing Old Windows

After your windows arrive, it's time to remove the old window. Insert the putty knife in the gap between the molding and the extension jam. Work your way around, tapping on the end of the putty knife with the hammer to loosen the molding.

Insert the crowbar between the loosened molding and the extension jam. Pry the molding off, working your way around. You can save the molding if it is in good shape, or you can replace it when you insert a new window. Pull out the nails that secure the exposed extension jam and remove the jamb.

On the outside slip the pry bar or shingle thief underneath the first row of shingles. Use the shingle thief to cut through the nails holding the shingle in place and to pry the shingle off. Remove the stubs of the nails as you go. Remove the shingles and nails from around the window. Remove the nails that hold the window in place and slip the window out of position.

Be careful when removing the crank assembly. When removing the screws that hold it in place. You will need a pair of pliers to break the metal off.

Most windows are placed higher than the average person can reach, requiring the use of a ladder. If you need to do so, have someone spot you and assist in getting the window down to the ground after removal so you don't lose your balance

Safety

Wear gloves and safety glasses during this entire removal procedure. Wear workman's gloves while taking out the window. Splinters from the molding and extension jams can get into the skin and under nails, and rusty nails can puncture the skin, as well, leading to infections. Replacing casement windows can be confusing but it is not an impossible task, and being safe makes it easier.