Window grilles are one of those purchases most Singapore homeowners make once; unlike paint or wallpaper, window grilles are bought at two instances: when you buy a new house or when you renovate an older one.
So it is definitely worth spending money on window grilles that will last for a decade or more. Rather than the ones that will rust in a few months and require a change.
That’s exactly why the choice of supplier matters.
A grille that rusts at the joints, a warranty that runs out after 18 months, or a design HDB won’t accept for your service yard can all turn a simple job into a second renovation.
We compared publicly available information from supplier websites and Google Business Profiles captured on 3 October 2026. In this guide, we also compare prices of window grilles from popular Singapore suppliers. We did not independently test grille strength, installation quality, or warranty claims. Prices are published starting prices and may vary according to window size, quantity, configuration, and installation requirements.
Top Window Grille Suppliers in Singapore at a Glance
| Supplier | Best known for | Published starting price |
| 1. AT Aluminium | Aluminium window and grille packages for HDB/BTO | BTO window grilles from $429 |
| 2. SG Gate Door Window | One-stop HDB doors, gates, windows and grilles | Invisible grilles 900 – 1,500 (4-room) |
| 3. Ho Ho Door | Widest material range, since 1976 | Aluminium from $8 psf |
| 4. Endo Grilles | Invisible grilles and aluminium flat packages | Aluminium from $190 per window |
| 5. Secret Furnishing | Invisible grilles with a 10-year warranty | $8.80 psf |
| 6. Top 1 Singapore Safety Window | Fixed-price room packages | Aluminium 3-room from $599 |
| 7. Elelaurels | Openable and cat-safe invisible grilles | Openable from $26.50 psf |
How Much Do Window Grilles Cost in Singapore in 2026?
Comparing prices across suppliers is harder than it should be, because some quote per square foot, some per window, and some per flat. Here’s what the seven suppliers in this guide publish, grouped by grille type so you can compare like with like.
| Grille type | Published price range | Where the figures come from |
| Aluminium grilles | $8 psf, or from $190 per window | Ho Ho Door (psf); Endo Grilles (per window) |
| Aluminium, whole-flat packages | 3-room 599 – 799. 4-room 899- 999. 5-room 1,080 – 1,299 | Top 1 Singapore Safety Window; Endo Grilles |
| Fixed invisible grilles | 4.90–8.80 psf; 4-room packages 639–1,500 | Endo Grilles; Secret Furnishing; Top 1; SG Gate Door Window |
| Openable invisible grilles | 18.50–28.50 psf | Endo Grilles; Elelaurels |
| Cat-proof grilles | From $12 psf | Ho Ho Door |
| Mild steel slim grilles | From $28 psf | Ho Ho Door |
| Wrought iron grilles | From $30 psf | Ho Ho Door |
There are two things worth noting here: Aluminium is by far the most affordable window grille option for home security in Singapore. Surprisingly, it costs roughly a quarter of the per-square-foot cost of mild steel or wrought iron.
The second thing is that the price gap between the cheapest and the invisible grilles is huge. But it is important to know whether getting the best and most invisible one is worth every penny.
The difference mostly comes down to whether the cables are fixed or openable, the cable material, and how long the warranty runs.
List of Window Grille Suppliers with Installation Services in Singapore 2026
1. AT Aluminium
| Google rating | 4.8 (861 reviews), as of 3 Oct 2026 |
| Location | 39 Woodlands Close, MEGA@Woodlands #03-18/19, Singapore 737856 |
| Grille types | BTO aluminium window grilles, sliding window grilles, swing and slide grilles, service yard windows and grilles, casement windows with grilles |
| Published prices | BTO window grilles from $429 · service yard grilles from $429 · sliding windows with grilles bundle from $1,799 |
| Warranty | 10 years on its window and grille packages |
| Licensing | HDB-licensed renovation contractor, BCA-approved |
AT Aluminium is a Woodlands-based aluminium specialist that has built up 861 strong and extremely positive Google reviews since it was founded in 2022.
Its strength lies in its diversity. It offers a combined window-and-grille package. Rather than quoting grilles on their own, it prices sliding windows and grilles together for HDB resale flats, and provides separate packages for BTO units and service yards, so you know the total cost before anyone measures up.
The grille range covers fixed, sliding and swing designs in aluminium, finished in powder coat, anodised or wood-grain. Its BTO window grilles start from $429, and its current promotions bundle service yard sliding windows from $200 alongside grilles from $429.
Each of these packages carries a 10-year warranty, the longest structural cover alongside SG Gate Door Window’s and Secret Furnishing’s in this list.
AT Aluminum is the best choice for HDB and BTO owners who want windows and grilles from one contractor at a known package price.
2. SG Gate Door Window
| Google rating | 4.8 (1,345) Woodlands showroom · 4.8 (108) West showroom, as of 3 Oct 2026 |
| Locations | 39 Woodlands Close, MEGA@Woodlands #04-09 · 25 Bukit Batok Crescent #01-05, The Elitist |
| Grille types | Aluminium, stainless steel, slimline modern, invisible and cat-proof window grilles |
| Published prices | Invisible grilles for a 4-room flat typically 900–1,500; other grilles quoted after consultation |
| Warranty | 10 years on gates, doors and windows |
| Accreditations | HDB licensed, CaseTrust accredited, bizSAFE Star, ISO 45001:2018 |
SG Gate Door Window is one of the most trusted suppliers in Singapore. They offer a comprehensive range of high-quality doors, gates, windows, window grilles, fire-rated doors, and digital locks.
The company specialises in a wide range of high-quality products that meet HDB guidelines and safety standards in Singapore. They offer affordable, durable solutions tailored to Singapore’s humid climate and HDB regulations. Hence, it’s a sensible call if you’re replacing your main gate and window grilles in the same renovation.
SG Gate Door Window has the most Google reviews of any supplier here, at 1,345 for its Woodlands showroom alone.
Its invisible grilles use 2mm, 316-grade stainless steel cables under high tension, and it puts a 4-room flat at between $900 and $1,500. Aluminium and stainless steel grilles are custom-made and priced after consultation, with fabrication usually taking two to five days from measurement.
It’s a great option for homeowners renovating several entrances and openings at once who want a CaseTrust-accredited supplier with two showrooms.
3. Ho Ho Door
For over 50 years, Ho Ho Door has provided homeowners in Singapore with windows, grilles, gates, and doors that are better, different, and affordable.
As an HDB Licensed Contractor (HB-02-0667D) and BCA Registered company, all of their products are compliant, reliable, and professionally delivered.
They deliver the performance, comfort, and security they need, along with design options that bring their ideal home style to life.
Ho Ho Door is the most transparent supplier on this list in terms of price. It publishes per-square-foot rates for four materials: aluminium from $8, cat-proof grilles from $12, mild steel slim grilles from $28, and wrought iron from $30. It even works those through to flat-sized estimates, putting a 4-room HDB at around $960 in aluminium against roughly $3,600 in wrought iron.
They quote about 10 working days for fabrication, and say most installations take under an hour per window. They work great for anyone weighing aluminium against steel or wrought iron who wants published prices for each.
4. Endo Grilles
Endo Grilles is primarily an invisible grille and zip blind specialist, though it also sells aluminium grilles at some of the lowest published prices around. They are Singapore’s only trademarked invisible grille cable system, engineered with marine-grade 316 stainless steel for full outdoor exposure.
Rust-proof, UV-resistant, and backed by a 5-year warranty, they are the top-rated invisible grille cables for HDB flats and condos. Installation starts from $300 per panel, with professional fitting completed in 2- 3 hours.
Singapore’s tropical climate is brutal on invisible grilles. Because of heavy rain, intense UV, and high humidity, cheap cables break down fast. That’s why we engineered All Weather Cables differently.
Aluminium grilles start from $190 per window installed, with whole-flat packages from $799 for a 3-room, $999 for a 4-room, and $1,180 for a 5-room HDB, including removal of the old grilles. Its basic fixed invisible grilles start at $4.90 psf, and openable ones at $18.50 psf.
The only trade-off here is warranty. Endo’s aluminium grilles come with 18 months on the structure and 12 months on hardware, against ten years from several others here. Custom RAL colours add $30 per window. It’s based at 3 Guillemard Road and holds a 4.8 rating from 409 reviews.
They are the best option for budget-led buyers who want a fast, low upfront price and are comfortable with a shorter warranty.
5. Secret Furnishing
Secret Furnishing is known for curtains and blinds, but invisible grilles are one of the most important parts of its business. It prices them at $8.80 psf, offers wire spacing from 2 to 4 inches, and has marine-grade stainless steel available for homes exposed to sea air.
The headline is its 10-year warranty, which it contrasts with the 3 to 5 years it says is typical elsewhere. With showrooms at IMM, Tampines T-Space and Vertex in Ubi, it’s also one of the easier suppliers to visit in person. The IMM showroom holds 4.5 stars from 408 reviews.
Best for homeowners who are buying invisible grilles with a long warranty, especially if you’re also buying curtains or blinds.
6. Top 1 Singapore Safety Window
Since 2010, Top 1 Window has been a trusted HDB and BCA 3/4 window contractor in Singapore. They specialise in aluminium windows, doors, and gates, window grilles, and wrought iron gates, grilles, and fences.
Their products include sliding windows, casement windows, and naco windows, all customised to meet your unique needs. With a focus on high-quality materials and customer satisfaction, we ensure every project is completed with precision and care.
Aluminium window grilles start from $599 for a 3-room, $899 for a 4-room, and $1,299 for a 5-room HDB. Fixed invisible grilles run from $1,200, $1,500, and $1,900 for the same flat sizes.
Its 5.0 rating is the highest here, though it comes from just 23 reviews, so it carries less weight than the hundreds behind the larger suppliers. These are the best for owners who want a single package figure for the whole flat without per-square-foot maths.
7. Elelaurels
Elelaurels focuses on invisible grilles, including openable versions and a dedicated range for cat owners. Elelaurels is one of Singapore’s most trusted openable invisible grille and invisible window grille providers.
The Elelaurels Invisible Grill and Invisible Window Grille are designed to deliver exactly that: strong protection with a clean, elegant look that blends seamlessly into your home. Your Safety Comes First with Invisible Grill & Invisible Window Grille.
Their Invisible Window Grille products are SETSCO-certified, ensuring they meet Singapore’s strictest safety standards. Quality is never compromised. Every Invisible Window Grille we install is built to be strong, dependable, and cost-effective.
Its published price guide lists openable grilles at $26.50 psf for 3- and 4-inch gaps and $28.50 psf for tighter 1.5- and 2-inch gaps, before GST. They are best known for openable invisible grilles with tight cable spacing for young children or cats.
Types of Window Grilles and Where Each One Works
The right window grille depends on where it will be installed. A bedroom window may only need a fixed grille, while a service yard, balcony or cat-friendly home may benefit from a different design.
Fixed grilles are permanently secured across the window opening and are generally the simplest and most affordable option. They work well for windows that do not need regular access from the outside.
Swing grilles are hinged and can open like a door, making it easier to clean the exterior of the window and access the opening when needed.
Sliding and retractable grilles move along tracks and can be opened when you want a less obstructed view. Retractable designs fold or slide to one side, then lock back into position when closed. Because they have moving parts, the tracks, rollers, and locking mechanisms need to be kept clean and maintained.
Invisible grilles use thin tensioned stainless-steel cables instead of conventional bars. They provide fall protection while keeping the window or balcony view relatively open, making them popular where homeowners want less visual obstruction.
For homes with cats, cat-proof grilles can use finer mesh or closer spacing to reduce the risk of a pet slipping through an opening.
Considerations for Child-Friendly Window Grille Installation
For homes with young children, grille spacing and the position of the grille matter as much as the grille type. Check the spacing offered by the supplier and consider every window a child could reach, including low windows beside beds, sofas, or other furniture.
Avoid designs that could easily be used as climbing footholds, and ask the installer about the safest configuration for your particular window. If you are considering an openable grille, also ask how the locking and release mechanism works and whether it can be operated quickly by an adult in an emergency.
Which Window Grille Materials are Best for Coastal Singapore Homes?
The typical materials used for window grilles in Singapore are aluminium, mild steel, wrought iron, and stainless steel, with stainless steel cable used for invisible grilles. Each one behaves differently in our climate.
| Material | Published price (psf) | How it handles humidity | Best suited to |
| Aluminium | From $8 | Won’t rust; powder coat holds colour | Most HDB and condo windows |
| Mild steel (slim) | From $28 | Rusts if the coating chips | Slim, strong frames where paint is maintained |
| Wrought iron | From $30 | Rusts without regular repainting | Decorative and heritage designs |
| Stainless steel cable | 4.90 – 28.50 | Grade 316 resists salt air | Invisible grilles, coastal homes |
Comparing Aluminium versus Wrought Iron Window Grilles
Wrought iron looks good in a colonial-style home. In a Singapore flat, though, it costs nearly four times as much per square foot as aluminium and needs repainting to stay rust-free.
Aluminium weighs less, doesn’t rust, and keeps its colour for years under a powder coat. We think wrought iron only earns its premium when the design itself is the point.
For everyday security on an HDB window, aluminium wins on price and upkeep, even if some suppliers still steer buyers towards steel.
How to Choose a Window Grille Supplier
Price is important, but compare more than the starting figure. Warranty coverage is one of the first things to check, as the suppliers in this guide offer different periods and coverage for the grille structure and hardware. The next important things to
A lower-priced grille may not be the better value if its warranty is substantially shorter or excludes important components. Next, check whether the contractor is HDB-licensed or not because it’s important if your installation requires renovation works covered by HDB’s requirements.
If you’re replacing windows at the same time, using one supplier for both windows and grilles can also simplify measurement, installation, and after-sales service.
Reviews can provide another point of reference, but consider both the rating and the number of reviews. A high rating with a large review volume provides more customer feedback to examine than a rating based on only a small number of reviews.
Before placing an order, ask for a written quotation after the site measurement. It should clearly state the grille material, finish, dimensions or coverage, spacing, installation charges, removal of existing grilles, GST, and warranty terms. This makes it easier to compare quotations from different suppliers on the same basis.
Discounts and Deals on Window Grilles in Singapore
Some suppliers offer package pricing or promotions when windows and grilles are purchased together. AT Aluminium, for example, publishes packages combining windows and grilles, including service yard sliding windows from $200, grilles from $429, and sliding windows with grilles from $1,799 for HDB resale flats.
SG Gate Door Window offers a 5% discount to SAFRA members, subject to its current terms.
Whole-flat packages from suppliers such as Endo Grilles and Top 1 Singapore Safety Window can also make pricing easier to compare, although the final cost depends on the number, size, and configuration of your windows.
If you’re replacing your windows as part of the same renovation, ask for the windows and grilles to be quoted together. Before comparing promotions, check whether installation, removal of existing grilles, and GST are included, as a lower advertised starting price does not necessarily mean a lower final quotation.
Get in Touch With a Window Grille Supplier Today
Choosing the right window grille supplier in Singapore is important so that the right material, design, and type of grille can be selected according to your requirements. AT Aluminium offers premium window grilles in Singapore for HDB, condos, and landed homes. Get in touch with AT Aluminium today to get started.
Frequently Asked Questions
What is the most affordable window grille option for home security in Singapore?
Among conventional metal grilles, aluminium is one of the most affordable options in this comparison, with published prices starting from about $8 psf. Some suppliers also publish whole-flat aluminium packages, such as 3-room packages from around $599. Fixed invisible grilles can have lower advertised prices per square foot, starting from about $4.90 psf, but they use a different construction and should not be compared with aluminium on price alone.
How do retractable window grilles work?
Retractable window grilles run along tracks and can slide or fold to one side when the opening needs to be accessed. When closed, they provide a grille across the window; when opened, they leave the window area less obstructed. Because they have moving parts, the tracks, rollers, and locking mechanisms should be kept clean and checked periodically.
Are there specific HDB regulations for installing window grilles?
It depends on where the grille is being installed and the type of flat. Internal metal grilles at windows and balcony parapets generally do not require a permit, but service yard and balcony parapet grilles are subject to additional HDB requirements. For some flats, HDB-approved designs also apply. Check the applicable HDB renovation requirements for your flat before fabrication, particularly for service yard and balcony installations.
How much do window grilles cost for a 4-room HDB flat?
Based on the published 2026 prices in this comparison, aluminium whole-flat packages for a 4-room HDB flat range from about $899 to $999. Fixed invisible grille packages range from around $639 to $1,500, depending on the supplier and configuration. These figures are starting or published package prices, so the final quotation can change according to window size, quantity, installation, removal of existing grilles, configuration and GST. So
What should I ask a window grille supplier before ordering?
Ask for a written quotation after the site measurement and check that it states:
- Grille material and finish
- Window dimensions or area covered
- Grille type and cable/bar spacing
- Installation charges
- Removal and disposal of existing grilles
- GST
- Warranty period and what it covers
- Any additional charges for custom colours or configurations
- Expected fabrication and installation timeframe
- Whether the proposed installation meets the applicable HDB requirements
Comparing quotations on the same basis makes it easier to see whether a lower starting price actually represents a lower final cost.
Are window grille prices inclusive of installation and GST?
Not always. The suppliers in this comparison use different pricing formats, including per-square-foot rates, per-window prices and whole-flat packages. Some published prices include installation, while others may list additional charges or exclude GST. Always check the quotation to confirm whether fabrication, installation, removal of existing grilles, and GST are included before comparing prices between suppliers.
What are the typical materials used for window grilles in Singapore?
If you live near the coast in places like Pasir Ris, Tanjong Rhu or East Coast, salt air speeds up corrosion. Powder-coated aluminium handles it well.
For invisible grilles, ask for 316-grade stainless steel, which the marine-grade SG Gate Door Window uses and Secret Furnishing offers. Lower grades such as 202 are cheaper but more prone to surface rust from the sea breeze.