Secure Your Home: A Comprehensive Guide to Casement Window Locks

Casement windows are a popular choice for homeowners due to their elegant design, unobstructed views, and excellent ventilation. However, as with any window type, ensuring the security of your casement windows is crucial for the safety and protection of your home and family. In this comprehensive guide, we will discuss various types of casement window locks, their features, and how to choose the best option for your needs. With over 1000 words of valuable information, you'll be well-equipped to make an informed decision and confidently secure your casement windows.

Understanding Casement Windows

Before diving into the world of casement window locks, it's essential to understand the structure and functionality of casement windows. Casement windows are hinged at the side and open outward, either to the left or right, by turning a crank handle. This design allows for maximum airflow and easy cleaning but can also pose security risks if not adequately secured with the appropriate locks.

Types of Casement Window Locks

There is a wide variety of casement window locks available on the market, each with its unique features and benefits. Here, we will explore some of the most popular options:

1. Keyed Locks

Keyed locks are a common choice for casement window security. These locks require a key to open and close, providing an added layer of security. Keyed locks come in various styles, including surface-mounted locks and concealed locks.

2. Sash Locks

Sash locks, also known as casement fasteners, are another popular option for securing casement windows. These locks typically consist of a lever or handle that fastens the window sash to the frame when engaged. Sash locks are available in both locking and non-locking varieties, with the locking option providing increased security.

3. Push-Button Locks

Push-button locks are a user-friendly option for casement window security. These locks operate by pushing a button to engage the lock and releasing it to disengage. Some push-button locks also feature a key for added security.

4. Folding Handle Locks

Folding handle locks, also known as casement window handles with locks, are an all-in-one solution for casement window operation and security. These locks incorporate a folding handle that operates the window and a built-in lock for security. Folding handle locks are available in both keyed and non-keyed varieties.

5. Child Safety Locks

For homes with young children, child safety locks are a must-have for casement window security. These locks are designed to prevent children from opening windows unsupervised, reducing the risk of falls and accidents. Child safety locks come in various styles, including cable restrictors and window opening limiters.

Choosing the Right Casement Window Lock

With so many casement window locks available, selecting the best option for your needs can be overwhelming. Here are some factors to consider when choosing the right lock for your casement windows:

1. Security Level

Consider the level of security you require for your casement windows. For high-security needs, opt for keyed locks or locking sash locks. For moderate security, non-keyed sash locks or push-button locks may suffice.

2. Ease of Use

It's essential to choose a casement window lock that is easy for you and your family to operate. Push-button locks and folding handle locks are user-friendly options, while keyed locks may require more effort to open and close.

3. Aesthetics

The appearance of your casement window locks is also an important consideration. Choose a lock style and finish that complements your window and home's overall design.

4. Installation

Some casement window locks require professional installation, while others can be easily installed by homeowners. Consider your DIY skills and budget when selecting a lock.

5. Price

Finally, consider your budget when choosing a casement window lock. While it's essential not to compromise on security, there are affordable options available that provide adequate protection for your windows.

By considering these factors and the various types of casement window locks discussed in this guide, you can confidently select the best option for your home's security needs. Remember, a well-secured casement window not only provides peace of mind but also enhances the overall safety and protection of your home and family.

Casement Window


Casement windows are the most common style of window. They feature hinged panels that swing open and closed. Casement windows are available in single panels or multiple panels. The direction a door swings, either to the right or the left, is called the handing. In addition to handing, window are identified as either inswing or outswing depending on whether they open into the house or towards the outside.


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Freedom to dream "truly custom-made"

Doorwin provides one-stop solution for professional windows doors manufacturer and installation. We have been serving customers with our high quality and branded products in United States, Asia and worldwide.


This newly built private house is in Sydney, Australia. The area occupied by the fenestration system in our scheduled design drawings was up to more than 110 square meters. A wide range of design details made the perfect mix of modern aesthetics and traditional sophistication, the simulated vertical hung windows with tilt & turn opening systems in this home are absolutely breathtaking. SDLS (Simulated Divided Lites with Spacer Bar) brings some historical vintage feeling to the whole building without losing any energy saving performance. Long narrow fixed windows creating larger-than-life expenses, coupled with German high-end systems made this project stand out from the rest.

Simulated Hung Window with Tilt & Turn Openings

The client's idea was to maintain a certain vintage feel, and our aim was to meet the energy efficiency needs and standards of modern houses as much as possible while maintaining a retro design. Doorwin’s 61S simulated hung windows with tilt & turn openings is a respectful modernization of a classic architectural masterwork.

Why choose the tilt and turn opening method?

Because it generally has better air seals than sliding, single hung, or double hung window frames. Tilt and turn windows form a complete seal when fully closed, this means they are less prone to water leakage, and cold draughts and you’ll keep more of your heating indoors where it belongs. They can be opened in the upper tilt way to ventilate at a minimum opening status and are easy to clean outside of the glass; when there’s a good day, they can be opened as normal inward casement windows.

Large Energy Efficient Fixed Windows

Our well-crafted bespoke systems enhance the functionality and panoramic view of this modern house.

Huge, fixed glass walls up to seven meters long and two meters high bring great lighting and open views, making it really refreshing to the mind. Five meters high long narrow windows give the whole building a contemporary aesthetic.

Every window’s placement and shape not only add to the uniqueness of this home but also provide a more energy-saving ability for the owners.

Doorwin energy-efficient integrated glazing units feature double-pane glass, warm-edge spacers, argon gas fill, Low-E coatings, and fully tempered glass, they can not only create a comfortable and natural indoor environment but also save electricity bills and heating bills of more than 100 USD for the owner, it’s a real bargain compared to choosing a regular glazing set.

Custom Designed Thermal Break Aluminum Entry Door

Aluminum Door offered an air of uniqueness and elegance to a home. With their luxurious patterns and beautiful finishes, it provides this house with a bounty of aesthetics and security. Aluminum entry doors allow you to resist any weather extremes, corrosion, and pests. So aluminum is one of the most resilient and durable materials you can select for front doors considering the price/performance ratio.

With pieces of double panes, and Low-E tempered glass. The door provides a good insulation performance.

Custom Designed Grilles and Transom

Divided lite windows and doors offer unique architectural solutions for buildings without compromising energy efficiency or aesthetics. Doorwin provides multiple muntin and glass options to customize your divided lite windows and doors. Further customization is available with a variety of colors and materials, creating an infinite number of design combinations to best suit your style.

In this project, we use SDLS (simulated divided lites with spacer bars), these bars permanently adhere to both sides of the glass, and spacer bars are installed between the glass, this is the most energy-efficient way to create the look of classical décor grilles. The windows in the bathroom bedroom and study have an Arch Transom Design, making these rooms, which are often used by the owner, have some traditional aesthetics.

BTW, Doorwin offers free design assistance, so if you need a custom design like this one, contact us right away and we will provide you with the most aesthetically and functionally pleasing design solution.

German Imported Hardware System

For windows and doors, hardware is as important as the engine is to the car. The continuous technological innovation of the European hardware industry has strongly promoted the performance improvement and functional innovation of windows and doors. In this project, Doorwin uses Hoppe™ multi-point locks, hinges, and handles from Germany.

Multi-point lock systems provide not only the burglar-resistance but also a tighter compression seam, making the window keeps good energy-efficient performance. Together with Technoform Bautec’s insulation edge bond and sealant strips, these make up our products' top insulation and energy-saving performance.

Save Your Money On Installation Costs

We have several international patents to reduce clients’ labor costs, such as our unique flanges and assembly type tubular design, which is different from the other products on the market. What sets us apart among Chinese counterpart is that all our products are equipped with nail fin structures for quick and easy installation. Labor costs during installation may exceed of the window and door price, therefore, our exclusive patent allows users to not only get a significant increase in installation efficiency, but also greatly reduce the labor cost of window and door installation. A cost that may bring you unexpected savings that far exceed the price difference you may care about now.

Free Design Assistance

With our own expertise, we provided the no-cost design development and contract documentation with CAD & BIM drawings, including elevation, details about the project, and installation help.

Before production, we will provide accurate sample drawings, which will clearly show the cross-sectional pattern, size, opening method and direction, pattern of the warm spacer, and the installation nodes. We will not go into production until you have signed off on the drawing to ensure that you receive a final product that meets the exact requirements of your project.

About Doorwin

Doorwin's professional packing system guarantees all products are delivered safely and without any damage. We apply a four-point packing system. Firstly, adhesive plastic film is applied on interior wood frames and exterior aluminum frames to avoid scratches on the surface. Then, a paper board is applied after we apply air bubble film surrounding the whole windows/ doors to avoid any destruction or clash. Lastly, we place them into a durable non-fumigation plywood crate to avoid any possible damage during transportation.

With years of experience shipping our products worldwide, we could guarantee to ship our products to their final destinations intact and without any damage.

About Doorwin Factories

Doorwin is one of the most professional window & door manufacturers are known for its great customized products. In Doorwin, a variety of colors, styles, and sizes of products are available to meet the client’s unique requirements. We own three ISO9000-certified modern factories in China. With a factory area of 20,000 m2 and a production capacity of 100,000 m2 per year. Doorwin Group has the scale to ensure timely delivery and the flexibility to reduce manufacturing lead times to as short as 18 days.