Types Of Window Grill Design in Singapore 2024

There is hard-to-break glass, top-of-the-line locks, secure hinges, and even CCTV cameras aimed directly at the windows, but you still hear stories of people breaking into homes and stealing valuables.

That’s why most homes in Singapore have installed window grills for enhanced security. If you want a window grill design that serves both aesthetics and security, here are different types you can consider for your home.

Evolution of Window Grill Designs

A window grill is a decorative design on a window or door, typically consisting of vertical or horizontal bars that divide the glass into smaller sections.

Initially, their main role was purely functional for security purposes. Some horizontal and vertical bars to prevent unwanted guests. But now, these protective grills have become a work of art. These window grills could be arranged in various patterns to add visual interest to plain windows.

So, in recent times, window grilles have evolved to serve a dual purpose, not just enhancing the look of windows but also providing ultimate security.

Which Material Is Best For Window Grills?

Window grills can be made from various materials like wood, stone, vinyl, aluminum, stainless steel, and wrought iron. However, an HBD-approved window grill design requires study materials such as wrought iron, aluminum, or stainless steel.

This is because metals like iron and aluminum are sturdy and durable and require less maintenance. Plus, they are very hard to break compared to glass, which can be smashed down within seconds. 

In addition, aluminum is easily weldable, which means window grills can be crafted with traditional designs or incorporate modern patterns. Furthermore, they can feature a silver or muted gray finish, depending on the level of polish applied, adding elegance and a contemporary touch to any setting.

On the other hand, wood or vinyl window grill design may serve aesthetic purposes but are easy for burglars to remove. Therefore, they may not be suitable for your security and safety.

There are some other guidelines for HDB-approved window grill designs. For instance, window grills must not exceed the height of the unit. In addition, grills should not protrude from the building facade.

Besides, the Singaporean HDB flats must install their grills in a way that should not obstruct the escape route in case of emergencies, such as fires.

Therefore, if you are looking for window grill designs for your HDB flat, the best course of action is to go through HDB-approved window grill design guidelines and then choose one accordingly.

Types of Window Grill Designs

There are plenty of options for simple modern window grill design, each with different characteristics and benefits. Two popular choices in Singaporean homes are slim grilles and invisible grilles.

Let’s get familiar with both of them:

Slim Grille

Slim Grille

Imagine a sleek and slender window grill that adds a touch of contemporary elegance to your home. That’s precisely what a slim grille offers. Unlike those constructed from thicker metals, such as angular bases, slim grilles boast a slender profile. They measure around 6mm or less in width.

So, when should you consider a slime grille? When you need:


Their evenly spaced bars, whether arranged horizontally or vertically, act as a formidable barrier against intruders. With slim grilles in place, homeowners can rest easy knowing that their sanctuary is safeguarded against any unwelcome visitors.

Flexibility and Adaptability

Looking to jazz up your living space with a touch of flair? Slim grilles are your go-to option. Singaporean designers love working with these grilles because they offer unparalleled flexibility in design. Contemporary, modern, minimalist, or industrial slim grilles can be arranged to suit diverse style preferences.

Framed View

Who doesn’t love a breathtaking view? With a slim window grill design, you can enjoy the beauty of the outdoors without any visual hindrances. Thanks to their narrow size and strategically spaced bars, slim grilles frame the view outside like a work of art. Whether you prefer a narrow frame or an unobstructed panorama, slim grilles have got you covered.

Invisible Grille

Invisible Grille

Imagine a world where window grilles are barely noticeable, allowing you to bask in the splendor of your surroundings without any obstructions. These invisible window grill designs in Singapore are revolutionizing home architecture.

When to prefer these modern HDB window grill designs? Here are some pros;

Barely There

Invisible window grill designs live up to their name by blending seamlessly into the background, giving you an uninterrupted view of the outside world. Say goodbye to clunky window grilles that obstruct your vision. With invisible grilles, the view is crystal clear, allowing you to soak in the beauty of nature.


Who says security can’t be stylish? Invisible grilles offer a sleek and modern aesthetic that complements any architectural style. Plus, since they’re resistant to rust, you can enjoy their chic appeal for years to come without worrying about maintenance. So, an invisible guest offers a simple grill design for new homes.

Alarm System Integration

Have you ever heard of the Trojan horse? It seemed harmless from the outside, but inside, it held a different story. A similar idea applies to invisible grilles. Because they’re, well, invisible, they seem less intimidating. Designers and security firms leverage this feature to develop security systems for these grilles. Once installed, they blend so seamlessly that they’re practically undetectable to potential intruders, adding an extra layer of security to your home.


Well, the invisible window grill design seems to tick all the boxes. However, they are prone to accidents.

Since the grilles are nearly impossible to see with the naked eye, there’s a risk of people accidentally walking into the glass, posing a potential hazard. Especially for active children who may not notice the presence of the glass, there’s a chance of injury.

Additionally, the grille itself is quite sturdy and could potentially cause harm if someone collides with it. Taking necessary precautions ensures the safety of everyone, both inside and outside.

Some Other Window Grill Designs

These two were the most common and simple HDB window grill designs, However, their functionality and creativity aren’t limited to them. There are plenty of designs and shapes of window grills, such as:

Geometric Designs

Window grills with elaborate geometric designs are becoming increasingly popular. These designs typically include interlocking shapes like hexagons or triangles, giving a contemporary and visually appealing appearance.

These patterns can be created through laser cutting or crafted from wrought iron to add a touch of sophistication. This design is best suited for both modern and traditional styles. It allows ample natural light to filter through while elevating the overall aesthetic charm of your windows.

Nature-Inspired Designs

Singapore’s lush greenery and abundant flora serve as inspiration for many window grill designs. Window grills adorned with nature-inspired designs like leaves, branches, or floral patterns became highly sought after.

These elegant and simple grill designs effortlessly enhance the natural charm of your living space, whether it’s a traditional or modern setting.

Minimalist Grills

Minimalist Grills

In 2024, minimalism will continue to be a favored design option. There’s a surge in demand for a window grill design in Singapore characterized by clean lines, smooth profiles, and uncomplicated geometric patterns.

This simple window grill design offers security while preserving a modern and clutter-free appearance. Besides, these are versatile and can suit various architectural styles.

Mixed Material

For an ultimate striking impact, mixing materials in window grill design is also an option. Manufacturers design modern window grill designs with different materials like wrought iron, wood, or stainless steel.

This blend of materials adds texture and visual interest to your windows. This window grill design works well in various architectural styles and offers customization options.

Artistic Grills

Grills also serve as a canvas for artistic creativity. Some have ornamental designs, such as intricate scrollwork, filigree, or abstract patterns.

This simple modern window grill design is mostly found in high-end residences or homes with vintage or classic architectural styles. If you want your window to be the focal point of your room, these artistic windows are the best options.

Mesh Or Screen Grills

If you live in areas abundant with greenery or where insect control is essential, a mesh or screen window grill design is your go-to option. These window grills feature small openings that enable fresh air to flow through while effectively blocking out insects and debris.

They are typically crafted from durable materials like stainless steel or aluminum.

Latticed Window Grill Design

If you need robust security and protection, there’s a simple HDB window grill design to consider. This particular window design offers dual layers of security measures, ensuring your safety against intruders and harsh weather conditions.

To start, the interior is reinforced with a sturdy forged metal sheet, often seen in industrial settings. Additionally, there’s the option of a traditional balcony window grill design, complete with decorative elements adorning the top of the structure.

wood grain window

Grid-Lock Design

You have seen one quite often in commercial settings, such as shops, offices, restaurants, and more. However, it’s equally appropriate for domestic use, especially if you are looking for a window grill design for a balcony.

One of the standout features of the gridlock window grill design is its intricate grid pattern, which adds a layer of complexity and visual interest to windows and doors. This grid-like structure enhances security by creating a barrier that is difficult for intruders to breach while also allowing ample airflow and natural light to filter through.

Grills With A Victorian Design

Want a kitchen that screams a vintage look? A Victorian-inspired design is an essential one.

As you can see in the image above, this design is influenced by the Victorian era. It is characterized by the use of various curves to form unique shapes. These curves contribute to the sophistication and attractiveness of your contemporary window grill design, particularly when painted in a subtle shade like white.

Wrought Iron Grills

Wrought iron window grills are tough and timeless. They’re famous for their fancy designs and intricate patterns, which are usually crafted by hand.

The best aspect of this window grill design is that you can customize it to match your style perfectly. Besides security and functionality, installing these grills adds a touch of class and sophistication. They are perfect for traditional or Mediterranean-themed homes.

Beachy Grills

Are you looking to bring a touch of the beach indoors? These iron rods have been expertly crafted into a wave-like formation, adding a lively and cheerful vibe to your windows.

This design is a simple modification to the traditional iron window grill design but is enough to infuse your home with a playful and vibrant atmosphere. This beachy design is well-suited to bathrooms, but not necessarily. The balcony or living room are also top contenders.

Open And Spacious Grills

Open And Spacious Grills

In 2024, there’s a noticeable trend towards crafting interiors that feel open and airy. Window grill design is no exception. This uncomplicated window grill design with broader gaps between the bars, or even grilles sporting horizontal or diagonal lines instead of the usual vertical ones, can contribute to achieving this aesthetic.

These design choices facilitate the influx of natural light into the room while offering a clear and unobstructed view.

Final Words

When it’s time to pick the right window grill design for your home, teaming up with a designer and seasoned contractor is your best bet. They’re well-versed in local regulations and the ins and outs of installation and replacement. While some HDBs have stringent rules, Singaporean designers often opt for an HDB-approved window grill design when sprucing up windows.

If you feel adventurous, go ahead and craft a unique, one-of-a-kind window grill design.

Looking for top-notch window grills that blend durability with style? Look no further than AT Aluminum!

Renowned for its commitment to quality, AT Aluminum offers a wide range of high-quality aluminium window and grills and mild steel gates designed to elevate the aesthetics and security of your windows. The professionals here also offer windows and grill installation services to ensure peace of mind.  If you want to protect and elevate your sanctuary in Singapore, the premium-grade window grills and gates at AT Aliminum are your go-to choices.