Slim Mild Steel Window Grill Singapore

Pang Giap is a window grill supplier and contractor in Singapore with more than 30 years of experience. We supply and install slim mild steel window grilles for all types of residential properties, including HDB flats, condominiums and landed homes.

A window grill is a safety and security barrier installed on windows for child safety and security. In Singapore, window grill designs can include slim mild steel, wrought iron and aluminium options.

Our slim window grill designs are customised to suit your window layout, safety requirements and design preferences. We also provide free on-site measurement and quotation for all window grill installations in Singapore.

For other types of window grilles, you can also view our wrought iron window grilles which are traditional, decorative and very strong, or aluminium window grilles which are lightweight, simple and cost-effective.

What Is A Mild Steel Slim Window Grill?

Our slim window grill is a modern window grill made using 6mm solid mild steel bars. Compared to traditional window grilles which are around 12mm to 20mm thick, slim grilles provide a wider, less obstructed view.

The increased spacing also allows more natural light and ventilation into the home, creating a brighter and more comfortable living space. Despite their slim design, our mild steel bars are strong and durable, providing reliable safety and security for residential properties.

Types of Window Grill in Singapore

We offer a range of slim window grill types to suit different homeowner needs and property requirements, including sliding grilles, swing open grilles and fixed grilles.

1. Sliding Window Grilles

Sliding window grilles are one of the most popular choices for HDB flats and condominiums. They are practical, space-saving and do not interfere with curtains or blinds when opened, making them suitable for bedrooms and living rooms.

Slim Window Grill Sliding Type

Slim Window Grill Sliding Type

2. Swing Open Window Grilles

Swing open window grilles can be opened fully to provide a clearer and less obstructed view. They are also convenient for cleaning both the grille and window glass.

Slim Window Grill Swing Open Type

3. Fixed Window Grilles

Fixed window grilles are ideal for homeowners who prefer a clean and minimalist look. Due to their slim profile, the grill sits closer to the wall for a more flush and less bulky appearance, which helps the room feel more spacious. This is especially useful for HDB flats and smaller rooms.

Slim Window Grill Fixed Type

Window Grill Designs & Colours

Modern window grill designs focus on clean lines, minimal obstruction and better airflow, while still meeting HDB and condominium design guidelines. Many homeowners prefer simple horizontal slim bar designs for a wider view, while others may choose vertical or square patterns depending on their home style and preferences.

Our slim grilles are also available in white, black, light grey, brown and other colours to match or complement your window frames. Choosing the right colour can help the grilles blend seamlessly with the window design or create a subtle contrast to enhance the overall look of the space.

Colours to match your requirement

Designs to match your requirement

Slim Window Grill Squares Design

Slim Window Grill Vertical Design

Spacing Gap Between Grill Bars

The gap spacing between grill bars can be customised.

4 to 4.5 inch is the normal bar spacing (measured between each bars) for our window grilles. However the spacing can be customised to suit your needs. It can range from as narrow as 1.5 to 2 inches to as wide as 5 to 6 inches.

5 to 6 inch spacing:
This wider gap spacing is ideal for homeowners who want the least grill bars blocking their window. With wide bar spacing and less grill bars, you can get to enjoy clearer and more open window view.

Slim Window Grilles, 5 to 6 inch spacing

Slim Window Grilles with Wide Spacings, 5 to 6 inch gap

1.5 to 2 inch spacing:
This narrower spacing is popular with owners who have small pets at home, as it helps prevent the pets from slipping through the gaps and improves safety.

To see more of our cat-proofing & cat-friendly grilles, please visit our page on Cat Proof Mild Steel Slim Window Grilles

Slim Window Grilles, 1.5 to 2 inch spacing

Slim Window Grilles with Small Spacings to Prevent Cats from Escaping

How Much Does a Slim Window Grill Protrude?

We usually try to install the window grill as far inwards as possible, as long as there is enough space on the window ledge. This helps to reduce how much the outer frame protrudes out.

When we install the windows and grilles together, the grill can usually be positioned further inwards because the window can be shifted further outwards. As a result, the grill will often be flush with the wall or have only minimal protrusion.

However, there must still be enough space between the window and the grill. For example, casement window handles must remain easily accessible and should not be blocked by the grill.

For grill installation without replacing the existing windows, below is a general estimation of how much the outer frame may protrude:

• Sliding Grill: up to around 2 to 2.5 inches
• Swing Open Grill: up to around 1.25 to 1.5 inches
• Fixed Grill: usually flush with the wall or with very minimal protrusion due to its slim outer frame

If the windows and grilles are installed together, sliding, swing open and fixed grilles can usually all be installed flush with the wall or with minimal protrusion, subject to site conditions.

Where Are Slim Window Grilles Commonly Installed?

In many BTO flats, the living room and bedroom windows usually consist of 3 sections. The top section is top hung panels, the centre section is casement or sliding windows, and the bottom section is fixed panels. In such layouts, slim window grilles are commonly installed on the centre section only, or on both the centre and top sections.

In some older HDB flats, the windows usually consist of 2 sections. The top section is top hung panels, while the bottom section is casement or sliding windows. In these cases, slim window grilles are commonly installed on the bottom section only, or on both the bottom and top sections.

Slim window grilles installed at center section of the window.

Slim window grilles installed at center section of the window.

Slim window grilles installed at bottom section of the window.

How to Get a Quote from Us

We offer free onsite measurement and consultation. During the visit, we will also bring along our samples for you to view.

Alternatively, if your place is not ready yet, you can call us at 6281 2485 or email your enquiry to panggiap88@gmail.com with the following information so that we can provide you with an estimated price:

• Property type (HDB / condominium / landed house)
• Photos of your windows (showing the full height and width, without curtains blocking)
• Size or measurements of your windows
• Floor plan (if available)

If your windows have top hung ventilation panels or bottom fixed panels, please let us know whether you would like the window grilles to cover these sections as well.

Why choose Mild Steel Slim Grilles:

1. Choose Mild Steel for Strength & Security

We understand that many homeowners stay in high rise HDB flats and condos. They want to install window grilles for safety and security reasons. Especially when we have young kids at home, we need grilles for their protection. We do not want to leave the windows open without any grill protection. Singapore has low crime rates but we do not want to take the risk of burglars breaking in to steal our valuables.

Our slim window grilles offer strong protection as they are made of full solid mild steel bars, known for their strength & durability. Unlike other grill material such as aluminium, mild steel grilles are very difficult to break.

2. Slim Profile for Better View and More Natural Light

Some people do not want to install window grilles in their houses, because they do not like the bulky appearance of the grill, and the thick ‘jail-like’ bars which feels like staying in a prison. Also, because of these thick bars, the window grilles are blocking the window view.

Our slim window grilles are the perfect solution. Our slim grilles are made of thin and strong steel bars. Because they are so narrow (6mm slim), there are much less bars blocking your window. Our slim grilles also help to allow more natural lights into the house, making your rooms look brighter and more welcoming.

3. Save Space

Say goodbye to old fashioned bulky grilles. Our window grilles are only 6mm slim and are available in fixed, sliding and swing open designs. Compared to traditional window grilles, their slim profile creates a cleaner and less bulky appearance.

This helps the window area feel more open and allows more natural light into the room, which is especially useful for HDB flats and smaller rooms.

4. Easy to maintain

It is important to clean your windows & grilles regularly to have a healthy home. Our slim window grilles come in swing open or sliding type, making it easy for you to clean the grilles and the glass windows at the same time.

Because of their simple design, slim grilles are easy to maintain and do not trap much dust. The grilles are also powder coated for added durability, therefore making them suitable for Singapore’s hot and humid climate.

Elegant & modern grilles

Almost full view of balcony window

Slim grill installed on center row of full height HDB window

Slim grill installed on top row of 3/4 height HDB window

Slim Mild Steel vs Aluminium Window Grilles

Both slim mild steel and aluminium window grilles are common in residential homes. The right choice depends on the level of security you require, the location of installation, and your budget.

1. Security & Strength

Mild steel slim window grilles are made from solid bars that are harder to bend or cut compared to aluminium. For corridor-facing HDB windows or lower-floor units, mild steel offers stronger protection. Aluminium grilles are lighter and suitable where basic safety is sufficient.

2. Design & Appearance

Slim mild steel grilles are thinner and offer a cleaner, less obstructed view. Aluminium grilles are functional but typically have thicker frames and a more standard appearance.

3. Cost Consideration

Aluminium window grilles are generally more budget-friendly and commonly installed in service yards. Slim mild steel grilles cost slightly more but provide stronger security and a more modern design.

Window Grill Design Guidelines for BTO Flats and Condominiums

In Singapore, some BTO flats and condominiums may have specific design and colour guidelines for window grilles, especially for service yards. Our slim window grilles can be customised to meet these requirements while maintaining a clean and modern look.

FAQ About Slim Window Grilles

1. Are slim grilles strong enough for security?

Yes. Our slim window grilles are made of full solid mild steel bars. These window grilles provide strong protection for HDB flats (including corridor-facing windows), condos and landed homes in Singapore.

2. Will slim grilles corrode in Singapore’s humid weather?

Our slim window grilles are powder-coated for durability and are suitable for Singapore’s humid climate. With proper maintenance, these window grilles remain long-lasting and easy to clean.

3. How do I choose between sliding, swing open and fixed window grilles?

Sliding window grilles are popular for bedrooms and living rooms because they are practical and do not interfere with curtains. Swing open window grilles can be opened wider for cleaning and access. Fixed window grilles are suitable for homeowners who prefer a clean, minimalist look and do not need the grille to open.

4. What is the process from ordering to installation?

The process begins with an on-site measurement and consultation to confirm the design and colour of your slim window grilles. After order confirmation, we proceed with fabrication which usually takes around 2 weeks. Once ready, our team will contact you to arrange an installation date. Installation is usually completed within one day by our experienced installers.

5. Why install window grilles in Singapore homes?

Window grilles are commonly installed in HDB flats, condominiums and landed homes to improve security and child safety while allowing ventilation. In high-rise apartments, they provide peace of mind without blocking airflow or natural light.

Please call or email us for enquiry or quotation on our slim grilles. Don't wait! Make your home 'viewtiful' with our Slim Grilles today!

If you have any enquiry or book an appointment, please contact or email us.