Window Sash Replacement Basics

sash windows

It’s when a rake is swung in the wrong way or a ball is thrown in the wrong direction. When glass shatters, you’re left with a broken window that lets rain, snow, or insects in. Is it true that a broken window necessitates the complete installation of a new window, including the expensive cost?

Repairing the Sash of a Window

Certainly not. You can save money by purchasing and installing a window sash replacement kit instead of a total window replacement.

Only the top or bottom sashes are replaced, while key architectural components such as the trim, casing, and window frame remain in place. With this kit, you may avoid the time-fixing task of replacing the broken window by fixing only the part that has to be fixed: the window sash.

Basics of Window Sash Replacement

Window sashes are typically sold as part of a multi-part kit. A top or bottom sash (or both), compression jamb liners for both sides of the window, a sill dam, and a head parting stop are commonly included in a kit.

Window sash replacement kits are usually associated with a particular window manufacturer. Window sash replacement programs are available from major window manufacturers such as Andersen, Pella, Jeld-Wen, Marvin, and others.

Individual sash replacements aren’t always in stock in home centers, but you might be able to get them on a special order.

When Window Replacement Is Necessary

Installing new replacement windows throughout your home is a colossal expense. Even do-it-yourself window replacement, which saves money by relying on homeowner labor, can be intimidating. As a result, replacing windows is typically a job best left to a window company.

In most cases of broken window glass, total window replacement is not necessary. If the issue is solely broken glass, and the damage is limited, you can simply replace the window sash.

You may need to replace the entire window or hire a window business or contractor to do extensive repairs in some circumstances. When the damage extends beyond the window or the sash is of a type that is designed to be fixed in place, this is the case (not merely a window sash that is stuck in place due to paint or expansion). It makes more sense to buy a new window if you’re conducting any type of big construction around or including the window.

When Should You Replace Your Whole Window?

  • The frame as a whole is rotten.
  • The window has been harmed by insects.
  • Connecting studs, wallboard, or siding to the window area is damaged.
  • The window’s insulation is missing or deteriorated.
  • The window sash is not detachable because it is set in place.
  • During a significant renovation

How to Calculate the Size of a New Window Sash

  1. Remove any unnecessary accessories like screens, storm windows, or shutters.
  2. Remove the old sash as well as the weights.
  3. With a tape measure, determine the height and width of the window aperture. Measure the side and top in three locations, then choose the smallest of the three measures for the side and top. The new sash will not fit the opening if you choose one of the larger figures.
  4. Order your replacement sash in the appropriate size.

How to remove an Old Window Sash

Sash removal for older wood windows can be difficult because you’ll have to deal with the balancing weight mechanism. Sash removal is easier with newer vinyl or fiberglass windows because they have a spring balance rather than a weighted balance.

Windows with a Weighted Balance

A stop, a thin vertical piece of wood that keeps the window sash from coming out, is generally found on older wood windows. To cut any paint that attaches the stop to the wall, score the edges of the stop with a utility knife.

Using a flat screwdriver or a tiny prybar, gently pry the stop off

The balancing weight is a hefty lead or iron cylinder housed in a secret compartment and linked to the movable sash with a rope when the sash is removed. In most circumstances, cutting the rope and sacrificing the sash weight by allowing it to fall into the hollow is the easiest option.

Remove the sash and set it aside from the work area

The weighted system will be replaced by a balancing mechanism with a coil spring block and tackle in the sash replacement kit. Your replacement sash will stay in place and go up and down properly thanks to this improved mechanism.

Spring-loaded Windows

  1. A spring-based balance mechanism will be found in newer vinyl, fiberglass, or aluminum windows.
  2. Depress the outermost flexible track with one hand.
  3. Gently draw the top of the sash inward with the other hand.
  4. The other half of the sash will rotate out once half of it is out.

Lift the window sash out of the way and out of the way of the work area.