Casement Windows

Casement Windows with Multi-Point Locks & a Lifetime Warranty

Casement windows from  are built for residential replacement projects and feature multi-point, easy-to-operate locking systems. Hinged at the side, the sash opens outward to provide a broad glass area and flexible ventilation. Because the window projects beyond the exterior wall, available clearance and opening direction should be considered during product selection.

We back up the quality of our windows with the quality of our installation work. Our team is licensed in every state we serve that requires it, fully insured, and has decades of window installation and replacement experience. We also offer free estimates to help you evaluate your casement window options and plan your replacement.

Casement Window Insulation & Air Leakage

Tight, multi-point locking handles help keep the sash secured at several locations around the frame. The closing pressure also supports a consistent seal when the window is shut, which can help limit unwanted air movement around the window assembly.

Our casement windows have air leakage ratings, which describe how much air passes through a closed window assembly under controlled test conditions. These performance characteristics may help reduce heating and cooling demands, although actual energy use depends on the home’s building envelope, climate, heating and cooling equipment, installation quality, existing windows, and occupant behavior.

Vinyl Components & Stainless Steel Hardware

Our casement windows use stainless steel hardware in their operating and locking components. Stainless steel resists corrosion, making it well-suited to hardware exposed to changing temperatures and moisture. Material performance still depends on the complete product design, installation, exposure, use, and maintenance.

 designs, engineers, tests, and manufactures our windows in our own North American factories. This gives us direct control over product quality at every stage.

Casement Window Design Options

A single casement window can stand on its own or be used alongside our bay, bow, picture, and awning windows to create a coordinated arrangement. Elegant handles and window shapes can complement a range of home aesthetics without distracting from the surrounding architecture.

Window combinations should account for opening dimensions, exterior proportions, interior furniture placement, available wall space, and the clearance needed for operating sashes. We can help homeowners consider how individual windows and larger arrangements fit the existing home.

Views & Casement Window Ventilation

The near-unobstructed glass in our casement windows provides an expansive view and allows natural light into the room. With no meeting rail across the middle of the glass, a casement window can also serve as a clean focal point within an interior design.

Certain configurations can open to a wide angle, providing flexible ventilation. Because the sash projects outward, it can help direct outside air into a room. Actual airflow depends on placement, wind direction, screens, nearby landscaping, adjacent structures, and other exterior obstructions.

What to Expect from Casement Window Installation with

A replacement window installation commonly begins with measurements and an evaluation of the existing opening. The appropriate approach depends on the condition of the frame and surrounding wall, the selected window configuration, and whether the project calls for an insert or full-frame replacement.

Installation matters after the project is finished, too. Our lifetime warranty includes installation labor, helping avoid a coverage gap between the window and the work used to install it.

Lifetime Casement Window Warranty & Service

We’re a family-owned home improvement company that has served customers since 1977. During that time, we’ve completed work for more than 1.2 million customers across 11 states. Our windows are supported by the same company that designs, manufactures, installs, and services them.

Frequently Asked Questions

How Do Casement Windows Open?

Casement windows are hinged along one side and open outward using a crank handle. This design allows the sash to swing away from the frame and create a broad opening for ventilation.

Are Casement Windows Good for Ventilation?

Casement windows can provide substantial airflow because the entire sash opens outward from the frame. The opening can help direct outdoor air into the room when weather and exterior conditions permit.

Do Casement Windows Provide Unobstructed Views?

Yes. Because the window sash opens outward and does not have a center rail dividing the glass, casement windows can provide broad, relatively unobstructed views. They can also be installed in combinations when homeowners want a larger window arrangement.

Are Casement Windows Secure?

Castle casement windows feature multi-point locking systems that secure the sash at multiple locations around the frame. The windows also use stainless steel hardware for their operating and locking components.

What Is a Multi-Point Locking System on a Casement Window?

A multi-point locking system secures the window at multiple points rather than relying on a single lock. When the casement is closed, the locking system helps pull the sash against the frame to support a consistent seal.

Can Casement Windows Be Installed in Groups?

Yes. Casement windows can be installed individually or combined with other casement windows and styles such as bay, bow, picture, and awning windows. The appropriate configuration depends on the available opening, desired appearance, ventilation needs, and exterior clearance.

What Should I Consider Before Installing Casement Windows?

Consider the direction the sash will open, the amount of space outside the window, and anything that could interfere with its swing, such as walkways, decks, railings, landscaping, or nearby structures. The size and configuration of the opening should also be evaluated before selecting a replacement window.

Are Casement Windows Energy Efficient?

Casement windows can help limit unwanted air movement when they are properly closed, sealed, and installed. Castle's casement windows have air leakage ratings and multi-point locking hardware designed to support a tight seal. Actual energy performance depends on factors including the window, installation, home's building envelope, climate, and heating and cooling equipment.

What Maintenance Do Casement Windows Require?

Routine maintenance includes cleaning the glass and frame, keeping the operating area free of dirt and debris, and checking that the crank, hinges, locks, and other hardware operate properly. Stainless steel hardware is designed to resist corrosion, although all window components can require maintenance over time.

How Can I Tell If My Casement Windows Need to Be Replaced?

Difficulty opening or closing the sash, problems with the crank or locking mechanism, drafts, leaks, damaged frames, or failed glass seals can indicate that a casement window needs service or replacement. Some problems may involve individual components rather than the entire window, so a professional evaluation can help determine the appropriate solution.