Mumbai high-rise residential skyline at dusk
Service Profile · Invisible Grill

The view stays. The grill goes.

A safety grill made of fine stainless-steel cables. So thin you barely see them, spaced tightly enough that no child can slip through. Built for Mumbai high-rises and detailed to disappear into the window.

Cable
SS 304 / 316
Gauge
1.5 mm
Spacing
50 mm
Frame
Slim alu
Finish
Anodised
Service life
15+ years
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Chapter 01 · The Problem

Three answers that
never quite worked.

A typical Mumbai apartment — twelfth floor, balcony off the living room, two kids and a dog — gets the same three answers when the family asks about safety. None of them solve the actual problem.

It’s the safety the family actually wants, with none of the visual cost.
i.

The MS welded grill

Ages badly, blocks the view, and ruins the elevation the designer worked on for six months.

ii.

The tempered-glass railing

Beautiful — but a child still has to be supervised every minute. Beauty without the brief.

iii.

Or simply nothing

And the family stops using the balcony. The view, paid for and rarely visited.

iv.

The fourth answer

Stainless-steel cables strung 50 mm apart — close enough that a child can't slip through, thin enough that you barely see them.

Chapter 02 · How it works

Three parts.
Nothing complicated.

01

A slim aluminium frame

Bolted to the parapet, the wall, or the window edge. Powder-coated or anodised so it matches the rest of the window system.

02

Stainless-steel cables

Strung horizontally across the frame, 50 mm apart, top to bottom. SS 304 for most installs; SS 316 for sea-facing flats.

03

A tension lock at one end

A small hex-head adjuster pulls the cable tight. If a cable ever loses tension, re-tightening it is a five-minute job — not a re-installation.

No springs.
No plastic clips.
No welds in the cable run.

The parts that fail in cheaper grills are simply not in this system.

Close-up of stainless steel cable mesh
Cable detail · Tension lock
Chapter 03 · Material

What it’s made of.
Down to the ferrule.

Specified for Mumbai weather, fabricated in our Santacruz workshop. Every fastener stainless. Every part chosen for the failure mode that actually happens — corrosion at the cable end.

Stainless steel cable wires close up
Material 01

The cables — stainless steel.

SS 304 for most installs. SS 316 — the same grade used in marine hardware — for any flat within a kilometre of the sea. Neither rusts in Mumbai humidity.

Aluminium window frame architectural detail
Material 02

The frame — architectural aluminium.

6063-T6 alloy. A slim 16 × 45 mm profile when sightlines matter, or 27 × 65 mm domal for larger openings. Anodised or powder-coat to any RAL.

Stainless steel hardware tag close-up
Material 03

The hardware — all stainless.

Every fastener, ferrule and tension lock is SS 304. No MS bolts. No zinc-plated steel. No rust streaks down the wall when the monsoon hits.

Chapter 04 · Where it’s installed

Real homes.
Real openings. Real light.

Standard floor-to-handrail-height grills on apartment balconies in Bandra, Juhu, Worli, Lower Parel, Powai and Thane. Bedroom windows, children’s rooms, atrium voids, staircase landings, rooftop terraces. Anywhere safety is needed and a visible grill is not.

Modern balcony with view
Balcony · Bandra

The most common install.

Floor-to-handrail-height grill on apartment balconies in Bandra, Juhu, Worli, Lower Parel, Powai and Thane.

Modern bedroom window
Window · Worli

Bedroom & living-room windows

Children's bedroom with window seat
Children’s room · Powai

38 mm spacing for cribs

Atrium void with skylight
Atrium · Juhu

Double-height voids

Stainless steel staircase railing
Staircase · Lower Parel

Mezzanine landings

Rooftop terrace with view
Rooftop · Khar

Bungalow terraces

Mumbai luxury skyline
South Mumbai · Sea-facing

SS 316 specified within 1 km of the coastline

Chapter 05 · Comparison

A direct read on the
seven decisions that matter.

MS welded grill
No grill
Aditi Invisible Grill
Visual obstruction
Heavy 12–16 mm bars
Zero
~1.5 mm cable, near-invisible
Child safety (≤100 mm)
Yes
No
Yes — 50 mm spacing
Monsoon / salt-air
Rusts at welds in 3–4 yr
SS 304 / 316 — no rust
Designer sightline
Blocks the elevation
Clear
Disappears from inside
Society approval
Often pre-approved
Refused above 5th floor
Pre-approved by most societies
If a cable goes slack
Five-minute service call
Removal for renovation
Requires cutting
Unbolted in a day
Chapter 06 · Benefits

Rarely a single feature.
Always the combination.

Child and pet safety, without the visual cost.

50 mm spacing — no child can slip through. Tightened to 38 mm for cribs and toddler rooms. Horizontal cables are far harder to climb than a vertical MS bar.

The view stays the view.

A 1.5 mm cable is so thin you barely register it from inside. The elevation the designer worked on for six months stays the elevation the client sees.

Built for Mumbai weather.

SS 304 for most flats, SS 316 for sea-facing. Neither rusts. The hardware is stainless too — no MS bolts streaking rust down a freshly painted wall.

Pre-approved by most societies.

Allowed under standard housing society bye-laws as a child-safety installation. We provide a one-page approval letter for the secretary’s file on request.

Removable, not permanent.

The frame is bolted, not welded. A two-person team can unbolt a whole balcony grill in a few hours. Renovation, window replacement and balcony glass swap-out are not blocked.

Easy to maintain.

If a cable ever loses tension, re-tightening is a five-minute service call. No part of the system needs more than an annual five-minute visual check per opening.

A long service life.

15+ years in Mumbai climate is realistic. Designed for the actual failure point — corrosion at the cable end — and built with stainless steel everywhere weather can reach.

Finishes that match the home.

Anodised silver, champagne or black. Powder coat to any RAL or NCS swatch to match the existing window system. Cables in bright SS or black-oxide.

Designer-direct.

Suraj reads the drawing. No franchise, no call-centre, no rep filtering technical questions. The relationship is the brand.

Chapter 07 · Common questions

The questions a designer
asks before the quote.

Most Mumbai societies do — invisible grills are allowed under the standard housing society bye-laws as a child-safety installation. We can give you a one-page approval letter for the secretary's file on request.
Yes. 50 mm is well below the 100 mm threshold for child-safe balcony guards. For cribs and toddler bedrooms we tighten this to 38 mm. The cable is also far less climbable than a horizontal MS grill bar — there's no foothold.
No. SS 304 doesn't rust. SS 316, which we use for sea-facing flats, is the same grade used in marine hardware. All the bolts and fittings are stainless too — no MS hardware that can rust and streak the wall.
Yes. The frame is bolted to the parapet, not welded. A two-person team unbolts a whole balcony grill in a few hours. Re-installation, if the opening hasn't changed, is half a day.
10–14 working days from drawing approval to handover for a standard 2–3 BHK flat. Add 3–5 days if the site has more than three openings or if the building society needs a separate approval cycle.
Pricing depends on cable type, frame size and finish. Send the drawing or the opening dimensions and we'll quote within two working days. We don't publish a per-square-foot rate — a 1.2 m balcony with three corners costs more per sq ft than a 6 m straight run, so the number is misleading.
Send the drawing

Send the drawing.
We’ll quote by Friday.

No site-visit fee. No call-centre. No quote written before measurement. Suraj reads the drawing himself, walks the site within 48 hours of enquiry, and signs off the shop drawing before we fabricate.

If you’d rather start with the dimensions, WhatsApp them to the number on the right. We’ll come back within two working days with a written specification, a finish recommendation and a delivery window.

Workshop
Santacruz (East), Mumbai
aditi enterprise · Aluminium fabricators for Mumbai's interior designers, architects and HNI residences.
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