Structural glazing · Leaks

Structural glazing leak in Gurgaon: finding where a glass facade lets water in

Structural glazing usually leaks at failed weather-seal silicone between panels, at the junction with the building, or where drainage in the frame is blocked. Water often appears far from where it enters. The fix is finding the entry point with careful testing and re-sealing it properly, not adding sealant everywhere.

Updated 8 October 2026Gurugram & Noida

Structural glazing facade of a commercial building with flush glass panels

Commercial buildings across Gurugram, from Udyog Vihar offices to showrooms on Sohna Road, and Noida's Sector 62 IT blocks, use structural glazing: glass bonded to an aluminium frame so the facade looks flush. When one leaks in the monsoon, water often shows up as a stain on a ceiling tile or a drip at a window sill one floor down, nowhere near the actual gap.

The short answer

Most leaks come from the weather seal, the silicone joint between glass panels or around the facade edge. UV, heat and building movement crack it, or it was applied badly. The structural silicone that holds glass to frame is a separate thing and rarely the leak path, but a failure there is a safety matter.

Where structural glazing leaks

Weather-seal joints between panels

The visible silicone lines between glass panes are the weather seal. They crack, peel away from one side, or were applied too thin. Wind-driven rain is pushed straight through.

Perimeter joints

Where the facade meets the slab, column, ACP or parapet, joints are often more complex and less carefully sealed. They're a common entry point.

Blocked drainage in the frame

Unitised and stick systems have internal drainage channels and weep holes. If they're blocked with dust or sealant, water that gets past the first line can't escape and spills inward.

Openable vents

Top-hung vents in a glazed facade have gaskets that perish and hinges that wear, so the vent doesn't close tight.

Building movement and glass replacement

After a panel is replaced, the new seal may not bond well to old silicone. Movement joints that weren't designed in show up as cracks.

Glass facade leak: where it shows and the fix
Where water shows inside	Likely entry point	Fix
Along a mullion line	Cracked weather seal above	Cut out and re-seal the joint
At the slab edge or ceiling	Perimeter joint failed	Re-seal facade-to-structure joint
At the base of a panel	Blocked frame drainage	Clear drainage and weep holes
Around an opening vent	Perished gasket, worn hinge	New gaskets, adjust vent
Near a replaced panel	Poor bond new-to-old silicone	Remove old silicone, re-seal

What the building team can check

Note exactly where and when water appears: which panel, which floor, and in which wind direction.
From inside, look at accessible silicone joints for cracks, gaps or peeling edges.
Check opening vents close tightly and their gaskets are intact.
Look for blocked drainage slots at the bottom of frames where reachable from inside.

Repair or re-glaze?

Most leaks are fixed by cutting out failed weather-seal silicone, cleaning the joint, and resealing with the right primer and silicone, then water-testing. Re-glazing is needed when the structural silicone bond itself has failed, glass is broken, or the system is badly built throughout. For a new or replacement facade, see structural glazing. Our structural glazing vs ACP guide compares facade options, and double-glazed units explains the glass options for heat and noise. Offices dealing with facade issues can see our offices in Gurgaon page.

How FabWise handles a facade leak

Send photos of where the water appears inside, photos of the facade from outside, and when it leaks (which rain, which wind), on WhatsApp. We'll tell you the likely entry points and what access will be needed. A site visit in our Delhi NCR cities is ₹99, adjusted against the bill; facade repairs are quoted in writing after the visit and access survey.

Prevention

Have facade silicone joints inspected every few years, especially on south- and west-facing elevations that take the most sun. Keep frame drainage clear. After any glass replacement, insist the old silicone is fully removed before resealing.

Common questions

Why is my structural glazing leaking?

Most often the weather-seal silicone between panels or around the facade edge has cracked or peeled, letting wind-driven rain in. Blocked frame drainage and perished vent gaskets are other common causes. Water often appears inside some distance from where it enters, so careful testing is needed.

Can you fix a glass facade leak without removing the glass?

Usually yes. Most leaks are fixed by cutting out the failed weather-seal silicone, cleaning and priming the joint, and resealing it, all from outside with proper access. Glass comes out only if the structural silicone bond has failed or the glass is broken.

What's the difference between structural silicone and weather silicone?

Structural silicone bonds the glass to the aluminium frame and carries load. Weather silicone fills the joints between panels to keep rain out. Leaks are usually in the weather seal; a failing structural bond is a safety issue that needs urgent attention.

Office ki glass wall se baarish ka paani aata hai, kaun theek karega?

A facade team with proper access equipment should test and reseal the joints from outside. Send photos of where water shows inside and of the facade on WhatsApp, and we'll tell you the likely cause and what's needed.