The upper sash can lower while the lower sash raises and both sashes can tilt out of the.
Tighting vinyl windows.
If your double hung windows are too loose they may rattle in the wind admit street noise and leak large volumes of air causing drafts and wasting your precious energy dollars.
Rotate the sash lock at the top of the lower sash to unlock the window.
A double hung window consists of a movable top and bottom sash.
Many modern replacement windows are vinyl and run on a spring system.
Too tight and you ll find them difficult or impossible to open and close.
Then shut the window a few times to confirm that it opens and closes properly.
Tighten the 8 screws once the sash has been adjusted.
How to adjust a double hung window spring.
They control the tension when opening and closing the window.
The springs are located on the sides of the window in the frame.
At this point your upvc window should fit snugly into the frame when closed.
Finding the right balance is easy.
Once the window has been adjusted give each of the 8 screws that you previously loosened a full turn clockwise to tighten them.