When we left off last week, we had removed the old wood sash windows and prepared the opening for the vinyl replacement windows. Now it’s time to install your new windows. You should have someone there to help you when doing the installation. First, Remove all shipping materials from the window. Now, if you are installing several different sizes, make sure you are putting the correct window in the correct opening. You need to put the window into the opening to make sure it’s going to fit, then remove it and run a bead of caulk on the face of the outside blind stop where the window will rest. You don’t want to caulk, only to discover the windows are too big. It’s worth the extra few minutes to make sure it’s going to fit. Lift the window and set the bottom in first. Then raise the top until it rests against the outside blind stops. Sometimes, when raising the top into position, the window frame will hit the top of the wood frame. You need to tap down on the top of the vinyl frame while keeping pressure towards the outside.
Once you determine that it’s going to fit, remove the new window and set it aside. Run a bead of caulk on the face...