Staircase Invisible Grill — Old City
When it comes to invisible grills in Old City, the local climate plays a decisive role in material selection.
Old City's Hyderabad's semi-arid climate with hot summers and high monsoon humidity demands 316 Grade SS for invisible grills.
This is precisely why hundreds of residents and builders in Old City choose GCM Invisible Grills — the only manufacturer
supplying AISI 316 Marine Grade Stainless Steel invisible grills directly to Old City without middlemen.
Our 316-grade SS wire is the same alloy trusted in offshore marine structures and medical-grade equipment, offering
superior resistance to chloride-ion corrosion — a critical factor in Hyderabad's climate. The result is a
rust-free, maintenance-free invisible grill that retains its structural integrity and visual clarity for 20+ years.
Beyond material quality, GCM provides end-to-end service in Old City: free site survey, precision measurement,
custom fabrication at our Karmanghat, Hyderabad plant, and professional installation within 24–72 hours.
Every installation comes with a 5-year material & workmanship warranty. To book your free survey, call
9912399224 or WhatsApp us now.
Choosing the Right Grade for Old City
GCM supplies two wire grades for invisible grills in Old City. The right choice depends on your floor level,
proximity to water bodies, and long-term budget:
| Specification | 304 Grade (Standard) | 316 Marine Grade (Best) |
|---|
| Corrosion Resistance | Good | Excellent (Marine-rated) |
| Alloy | 18% Cr, 8% Ni | 16% Cr, 10% Ni, 2% Mo |
| Salt-Air Resistance | Moderate | Outstanding |
| Ideal For | Lower floors, dry climate | All floors, humid/coastal areas |
| Price per sq ft in Old City | ₹120–140 | ₹160–200 |
| Expected Lifespan | 10–12 years | 20+ years |
| Warranty | 3 years | 5 years |
For apartments above the 5th floor and any location near lakes, rivers, or coastal areas in Old City,
GCM strongly recommends 316 Marine Grade SS for long-term value and zero-maintenance performance.
