The Ultimate Guide to Factory Casement Metal Window Frames


Factory casement metal window frames have become increasingly popular in recent years, thanks to their durability, low maintenance, and energy efficiency. These window frames are a great choice for both residential and commercial buildings, providing a modern and sleek look that can withstand the test of time. In this ultimate guide, we will explore the benefits of factory casement metal window frames, the different materials used, how to choose the right window frame for your needs, and how to maintain them properly. So, let's dive in and learn everything there is to know about these versatile window frames.

Benefits of Factory Casement Metal Window Frames

There are several benefits to choosing factory casement metal window frames for your building, including:

1. Durability:Metal window frames are known for their durability and can last for decades without showing signs of wear and tear. They are resistant to warping, rotting, and rusting, making them an excellent choice for long-lasting windows.

2. Low maintenance:Unlike wooden window frames, metal frames do not require regular painting or staining to maintain their appearance. This makes them a low-maintenance option that can save you time and money in the long run.

3. Energy efficiency:Metal window frames, especially those made from aluminum, have excellent thermal performance. They can help to reduce heat transfer and keep your building cooler in the summer and warmer in the winter, which can lead to lower energy bills.

4. Aesthetics:Factory casement metal window frames offer a modern and sleek look that can complement a variety of architectural styles. They can be easily customized with different finishes and colors to match your building's exterior design.

Different Materials for Factory Casement Metal Window Frames

There are several materials commonly used for factory casement metal window frames, including:

1. Aluminum:Aluminum is lightweight, durable, and corrosion-resistant, making it an excellent choice for window frames. It is also highly energy-efficient, thanks to its natural thermal break properties. Aluminum frames can be easily painted or anodized in various colors to match your building's exterior.

2. Steel:Steel window frames are incredibly strong and durable, making them ideal for commercial buildings and high-security applications. They can be galvanized or coated with a protective finish to prevent rusting and corrosion. Steel frames are also available in various styles, including slimline and industrial designs.

3. Bronze:Bronze window frames offer a unique and elegant look that can add a touch of sophistication to any building. They are extremely durable and corrosion-resistant, making them a great choice for coastal areas and harsh environments. Bronze frames can be left to develop a natural patina over time or polished to maintain their original shine.

Choosing the Right Factory Casement Metal Window Frame for Your Needs

When selecting a factory casement metal window frame, there are several factors to consider:

1. Budget:The cost of metal window frames can vary significantly depending on the material, size, and customization options. Determine your budget upfront to help narrow down your choices.

2. Building style:Consider the architectural style of your building and choose a window frame that complements it. For example, aluminum frames may be more suitable for modern buildings, while bronze frames may be better suited for traditional or historic buildings.

3. Energy efficiency:If energy efficiency is a priority, look for metal window frames with thermal breaks and double or triple glazing to minimize heat transfer.

4. Maintenance requirements:Consider how much time and effort you are willing to spend on maintaining your window frames. Aluminum and bronze frames generally require less maintenance than steel frames.

Maintaining Your Factory Casement Metal Window Frames

Proper maintenance is essential to ensure the longevity and performance of your factory casement metal window frames. Here are some tips for keeping your frames in top condition:

1. Cleaning:Regularly clean your window frames with a mild detergent and water to remove dirt, grime, and pollutants. Avoid using abrasive cleaners or tools that could scratch the surface of the frame.

2. Inspecting:Periodically inspect your window

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.


Our team of experts will work with you to develop a bespoke plan that fits your needs. We take a holistic approach to the planning process, combining our technical expertise with our knowledge of customer requirements and project constraints.


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.