Invisible Grill Vs Iron Grill — Tuni Extension
GCM Invisible Grills has been serving Tuni Extension and surrounding areas of Rajahmundry-Kakinada Corridor with certified installations of
316 Grade Marine Stainless Steel invisible grills — combining child safety, aesthetic design,
and 20-year rust-proof durability. Our installation team based in Karmanghat, Hyderabad
covers Tuni Extension within a 2-hour response window, making us the fastest and most reliable invisible grill service in Rajahmundry-Kakinada Corridor.
Whether you need invisible grills for your balcony, window, staircase, or commercial facade in Tuni Extension,
GCM provides a complete turnkey solution: free site survey → precision measurement → custom SS 316 fabrication →
expert installation → 5-year warranty support. No subcontractors. No shortcuts.
Our 316-grade wire — an anti-rust, anti-corrosion, high-tensile alloy — has been tested for
wind loads at floors above 25+ storeys, making it the safe choice for high-rise apartments increasingly
common across Rajahmundry-Kakinada Corridor. Pricing starts from ₹120/sq ft. Free survey at your Tuni Extension doorstep. Call 9912399224.
Choosing the Right Grade for Tuni Extension
GCM supplies two wire grades for invisible grills in Tuni Extension. 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 Tuni Extension | ₹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 Tuni Extension,
GCM strongly recommends 316 Marine Grade SS for long-term value and zero-maintenance performance.
