If you have asked around for invisible grills in Bangalore, you will have noticed that prices per square foot vary quite a bit between installers. That is not always a sign that someone is overcharging. A handful of specific choices decide what an invisible grill costs — and the same choices decide whether it is still tight, straight and rust-free five years from now.
How invisible grills are priced
Almost every installer in Bangalore prices invisible grills by the square foot of the opening being covered: width times height of the balcony or window. A 10 ft wide balcony with 7 ft from the parapet to the ceiling is 70 sq ft. The rate per square foot is where the differences between quotes live.
1. Cable grade: SS 316 or something else
The single biggest cost factor is the steel. SS 316 is a marine-grade stainless steel with molybdenum added, which is what keeps it from tea-staining and pitting in humid, rainy weather. Lower grades — or unbranded cable described only as “stainless” — cost less and look identical on day one. The difference shows after a couple of monsoons. Ask every installer to write the cable grade into the quote.
2. Cable thickness and coating
Cable is commonly 2 mm or 2.5 mm, with a clear nylon coating over the strands. Thicker cable costs more but suits wider spans; the coating makes the cable smooth to touch and protects the strands. Both should be named in the quote.
3. Spacing between cables
Closer spacing means more cable per square foot, and so a higher rate. A 2-inch gap is the child-safe standard for balconies with small children; grills set up to keep pigeons off may be spaced closer still. Wider spacing saves money but is not appropriate where a toddler lives.
4. Tracks and anchoring
Cables run between aluminium tracks fixed top and bottom (a vertical layout) or at the sides (horizontal). What those tracks are fixed into matters more than almost anything else: anchors should go into the RCC slab or beam, not into plaster. Finding the concrete under thick plaster takes time, and a quote that is much cheaper may simply be skipping that step.
5. Access, height and site conditions
In most Bangalore apartments the work is done entirely from inside the balcony, so floor height rarely adds cost. What can add cost is unusual geometry — curved or L-shaped balconies, very wide spans, glass railings that must not be drilled, or an old MS grill that has to come off first.
How to compare two quotes fairly
Put the quotes side by side and check that each one names the same five things: cable grade, cable thickness, spacing, what the anchors go into, and the warranty period. If one quote leaves any of these out, ask. The cheapest quote is only cheaper if it is for the same grill.
We give every customer a written quote that names all five after a free site measurement, anywhere in Bangalore — so you know exactly what is going onto your balcony before any work begins.
