Window Grille Singapore
Window grilles in Singapore for HDB flats, BTO flats, condos and landed homes. Aluminium sliding, casement and fixed grilles, mild steel and cat-proof designs, measured and installed to HDB's grille rules.
- Aluminium sliding, casement and fixed grilles, plus mild steel, wrought iron and cat-proof designs.
- Aluminium grilles cost about $8 to $14 per sq ft; whole-flat BTO packages are about $600 to $1,300.
- Service yard and balcony grilles in flats handed over from 1 July 2007 need an HDB permit and an approved design.
Why book with Homey
- Quote first. Send photos on WhatsApp and get the price before anyone comes down.
- Our own team. Installers from our Mandai workshop, not a marketplace.
- Islandwide. HDB, condo, landed homes and offices.
- Warranty. Workmanship covered after the job.
Window Grille Singapore: Types and Materials
| Grille | Best for | Notes |
|---|---|---|
| Aluminium sliding grille | Most HDB and BTO bedroom and living room windows | 2-track or 3-track panels that slide open for cleaning and emergencies. The most common choice. |
| Aluminium casement grille | Single-panel windows, such as near the aircon ledge | Swings open like a door. |
| Fixed grille | Windows you never need to reach through | The lowest cost, but cannot be opened. |
| Mild steel slim grille | A slimmer, more modern look | Thin flat bars, powder coated. Costs more than aluminium. |
| Wrought iron grille | Decorative and custom patterns | The highest cost, made to order. |
| Cat-proof grille | Homes with cats | Closer spacing than standard grilles so cats cannot squeeze through. |
Aluminium grilles come in anodised silver or bronze, or powder-coated white or black. Prefer a clear view? Compare with invisible grilles, or read our invisible grille vs window grille vs cat net guide.
Window Grille Price in Singapore
Typical 2026 prices, measured and installed. Small orders, complex designs and full height grilles cost more.
| Grille | Typical price |
|---|---|
| Aluminium grille, anodised silver or bronze | From about $8 per sq ft |
| Aluminium grille, powder-coated white or black | From about $10 per sq ft |
| Cat-proof aluminium grille | About $12 to $14 per sq ft |
| Typical two-panel bedroom window | About $130 to $250 |
| Mild steel slim grille | From about $28 per sq ft |
| Wrought iron grille | From about $30 per sq ft |
| 3-room BTO package | About $600 to $800 |
| 4-room BTO package | About $700 to $900 |
| 5-room BTO package | About $800 to $1,300 |
Full height grilles cost more than half height grilles because they need more material. Planning your BTO? Our BTO interior design page covers what to do before move-in.
HDB Window Grille Rules
| Grille work | HDB permit needed? | Conditions |
|---|---|---|
| Install or replace grilles at the service yard or balcony parapet | Yes | For flats handed over from 1 July 2007, grilles must be of HDB approved designs, shown in your renovation factsheet or on MyHDB Page. |
| Install or replace internal metal grilles of any design at windows and balcony parapets | No | For developments handed over before 1 July 2007. Grilles must be fixed internally and must not protrude from the building facade. |
| Metal grilles at an interaction balcony | No | Grille height must not exceed the height of the unit, and no combustible material may be stored at the balcony. |
Where a permit is needed, the renovation contractor applies to HDB for you. Grille works that need an HDB permit are carried out by our partner V On Construction Pte. Ltd., listed in HDB's Directory of Renovation Contractors. Grilles are fitted to the window frame or wall; they are not window replacement. If your window itself needs repair or replacement, that is done by a BCA Approved Window Contractor. See window repair.
Choosing a Window Grille
- Young children. Grilles on every window a child can reach, and keep beds, sofas and chairs away from windows so children cannot climb up.
- Cats. Standard grilles leave gaps that cats can squeeze through. Choose a cat-proof grille, or add mesh. See our pet proofing service.
- Mosquitoes. Grilles do not stop insects. Add a mosquito net inside the window.
- Access. Sliding or casement grilles let you open the window fully for cleaning and in an emergency.
What to Send for a Window Grille Quote
- Photos of each window from inside, showing the full frame.
- Rough width and height of each window, or your floor plan.
- Your flat type and the year the flat was handed over, or your renovation factsheet.
- The colour and style you prefer.
- Whether you have cats or young children.
Areas We Cover
We take window grille jobs islandwide. Our workshop is at Mandai Estate, so Woodlands, Yishun, Sembawang and Admiralty are the quickest for us to reach, and we regularly cover Punggol, Sengkang, Ang Mo Kio, Tampines, Bedok, Jurong and the rest of Singapore.
Frequently Asked Questions
How much are window grilles in Singapore?
Aluminium window grilles cost from about $8 to $10 per sq ft installed, and cat-proof grilles about $12 to $14 per sq ft. Whole-flat BTO packages are about $600 to $1,300 by flat size.
Do I need HDB approval for window grilles?
It depends on where the grille goes and when your flat was handed over. Service yard and balcony parapet grilles in flats handed over from 1 July 2007 need a permit and an HDB approved design. Internal grilles in flats handed over before 1 July 2007 do not need a permit, but must not protrude from the facade.
Where can I find my flat's approved grille design?
In the renovation factsheet given at flat booking or key collection, or by logging in to MyHDB Page.
Are aluminium grilles cat-proof?
Standard grilles are not, as cats can squeeze through the gaps. Choose a cat-proof grille with closer spacing, or add cat mesh.
Sliding or fixed window grilles?
Sliding grilles cost a little more but let you open the window fully for cleaning and emergencies. Fixed grilles suit windows you never need to reach through.
How long does window grille installation take?
Grilles are made to measure, so allow time for fabrication after measurement. Installation for a whole flat usually takes about a day.