# How To Install a Sash Windows

by Imagine Home Improvement Home Improvement

How To Install a Sash Windows

Sash windows, or double-hung windows, may offer an elegant, classic look to your home, and maybe necessary for some historical renovations. On any kind of window jamb, wood or vinyl window inserts can be used, and are suitable for window jambs that have warped or changed slightly with age. For the repair of existing sash windows, sash window replacement kits may be used. If you have the right instruments and take precise measurements, it should take less than a few hours to instal either product.

Measure the hight of the uPVC Sash Window:

Measure your Sash Window jamb's height. To find the height of your window jamb on the left side, right side, and middle, use a tape measure. Use the smallest measurement if all three measures are not the same. Make sure the full height of the jamb is measured, not between the inner stops, which are small parts typically made of wood keeping the window in place.

Find the Width of the Jamb of your Sash Window:

The lower, higher, and middle of the sash windows jamb should take this measurement. Using the smallest calculation of these three. Make sure you compare between the inner stops or parting stops from one side of the jamb to the other, not between them.

Match the diagonal measurements of your jamb:

Measure the jamb to the bottom right corner from the top left corner, and to the bottom left corner from the top right corner. You can use an insert instead of a substitute kit if these dimensions vary by more than 0.5 inches.

Measure the depth of the jamb in your Sash Windows Frame:

This is an important and often overlooked calculation. Measure the full depth of your window jamb, make sure that only where the window itself sits and not any frame parts protruding are measured.

Calculate the Angle of the outside Sill:

Some residential windows have outer sills with a slight downward angle, and when choosing a replacement package, this can be valuable detail. Keeping a thick piece of paper flat against the outside of the window and folding the bottom of the paper to match up with the sill, calculate the angle. With a protractor, you can then calculate the angle you just folded into the paper.

Tips to Remove the Old Sash Windows:

The interior of Pry ends at the window jamb. Small, flat parts fixed to the inside of the window jamb are the interior stops. They are usually made of wood and are intended from the inside to keep the window in place. To remove them, use a crowbar or pliers, and do your best to keep them intact for re-use.

Take the old window out of the jamb carefully. The bottom sash may be attached to two sash strings, which are attached to the sash weights if you remove an older sash window. Cut the sash cords and take out the sash at the bottom, then the sash at the top.

If there is one, pry off the parting stop. There would be another thin piece of wood on the sash windows in the middle of the jamb that separates the tracks of the upper and lower sashes. With a crowbar or pliers, pry it off. You don't need these bits to be rescued.

When removing a sash window, carry out the sash weights and pulleys. To take the weights gently out of the weight well, use the sash cords, and detach the weight pulleys. Be alert, as the weights will be heavy and, if swung carelessly, will break the glass. Instead of weights and pulleys, newer sash windows can have springs, which should also be removed.

With caulk or insulation foam, insulate any open spaces. Stuff the empty weight wells with insulation foam, or cover them with caulk, if you remove a sash window. This will keep your new window from leaking into the house with the cold air.

In many cases, the replacement of sash windows is completely unnecessary. There are very few cases where using the correct information and instruments, damage and decay can not be reversed.