Wood window sashes are an integral part of single-hung, double-hung or casement windows and are a popular choice for many homes. If you have wood window sashes, it’s important to understand what they are, the different types and their pros and cons, so you can understand how to repair or replace them when the time comes. 

A window sash is the part of the window that holds the glass in place and resides in the stationary frame. Window sashes can move or be fixed in place. Single- or double-hung windows window sashes can slide vertically or horizontally, and casement windows open outward. 

A window sash includes the sash frame, the glazing and any decorative or functional grilles that divide the glazing within the sash. Window sashes can also be single or double glazed, or even triple-glazed, depending on the needs of the building and requirements outlined in the building codes.

Types of Window Sashes

Three main types of window sashes dictate the style of the window.

Single-hung

Single-hung windows have two main panes of glass. One is stationary while the other can be slid vertically or horizontally to allow air into the building.

Double-hung

Double-hung windows include two sashes that can move independently of one another. This allows for more air ventilation, as there is an opening at the top and bottom or both sides of a window.

Casement

A casement window includes a sash that opens with a crank rather than slides. Casement windows can open vertically or horizontally with the sash moving away from the structure as the window opens.

Window Sash Materials

The window sash will likely be made of the same material as the window’s frame. Common window sash materials include wood, vinyl and aluminum.

Wood

Wood window sashes require maintenance over their life, but they create a traditional look that is desirable in many house styles.

Vinyl

Vinyl window sashes require very little maintenance and are durable and energy-efficient. They don’t offer the traditional look of wood, but they can complement a variety of design styles and come in a range of colors.

Aluminum

Aluminum window sashes are incredibly strong and durable. They are resistant to rust and won’t swell, split or crack over time. They are also easy to clean and maintain.

Wood Window Sash Components

Balance

The balance is the component that allows the window to remain open when the sash is lifted. In a wood sash window, the balance is fairly concealed and is located between the sash and the frame. 

Original sash windows used a weighted pulley system to counterbalance the weight of the window and hold it in place. Modern wood sash windows use a balance to keep the window open. Types of balances include block and tackle, spiral, rope and pulley and coil springs, among others.

Jamb and Jamb liner

The jamb is the recessed portion of the window frame that the window sash rests in. The jamb liner lines the jamb and facilitates the sash’s ability to glide smoothly in the jamb. It also helps to properly seal the window.

Hardware

Window sash hardware includes screws, arms, hinges, jamb seal, cranks and locks.

The Pros and Cons of Wood Window Sashes

Pros

• Traditionality: Wood window sashes have been around for almost as long as windows themselves. Dating back as early as the 17th century, wood window sashes created the flexibility to open and close a window depending on weather conditions.
• Beautiful and customizable: Nothing beats the beauty of natural wood, and wood window sashes can be stained to enhance their natural beauty or painted to match the home’s aesthetic.
• Replaceable: Wood window sashes are replaceable in the event of damage or general wear and tear over their life. Even if the original company has gone out of business, and you think you may not be able to find replacement parts, Fenster has replica and replacement parts that will get your window in working order again.

Cons

• Require maintenance: As with any wood product, wood window sashes require periodic maintenance that includes repainting or restaining.
• Prone to pests and moisture: Pests, mainly termites, love wood. With this in mind, wood window sashes are more susceptible to pest damage than other materials, and moisture can cause them to swell or warp over time.

Replacing Wood Window Sashes with Fenster

When a manufacturer no longer carries the window sash style you need or is out of business, it can cause a real headache. Here at Fenster Windows and Components, we stand ready to deliver replacement parts for beautiful windows from yesteryear.

If you have an older home with wooden window sashes, there’s a chance that your original sashes have been discontinued. This is where our team steps in — we can restore your home’s natural charm and character, and our sash replacements save you time and costs because you can avoid an entire window replacement. 

Our professionals can walk you through the process of replacing your wood window sashes with our ordering info checklist and helpful measuring guide. Contact our experts today to get started!