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Overhead glazing

Skylights — Glass, Slope and Waterproofing

A skylight brings daylight into a room with no wall to take it from — a stairwell, an internal kitchen, a covered courtyard. It is also the one place in a building where glass sits above people, and that changes the specification: overhead glazing is laminated, so a broken pane stays held on its interlayer instead of coming down. This is the national guide to the forms built in India, the glass, slope and detailing that make one work, and where to find the people who fabricate them.

8 skylight pages across 8 citiesupdated June 2026

The skylight forms built in India

The shape decides how water leaves the glass and how the frame is built, so it is the first thing to settle. Any of these can be made fixed or with an openable leaf — and every one of them is glazed with laminated glass, because the pane is overhead.

Fixed flat rooflights

A single fixed panel set into a raised kerb over an opening — the simplest and most common form, used above stairwells, passages and internal bathrooms. Nothing opens, so there are only two jobs: let light in and keep water out. The second one depends on the kerb and the flashing far more than on the glass.

Lean-to and mono-pitch

One slope, usually running from a wall or parapet down to a gutter — the standard answer over a courtyard, a rear extension or a service duct. A single fall means water and dust leave in one direction and there is one line of flashing at the head, which makes it the most forgiving form to detail and the easiest to keep clean.

Pyramid and hipped skylights

Four sloped faces meeting at a point or a short ridge over a square or rectangular opening, common above stairwells and small atria. It drains on every side and looks deliberate from below and from the terrace. The price of that is more rafters, more hip joints and more sealed lines to inspect later.

Barrel vaults and curved rooflights

A curve built from straight, segmented panes on curved rafters — the glass itself stays flat unless it has been slumped to shape, which is a specialist process and a different order of cost. Worth knowing before you compare quotes: the segment lines are visible from inside, and how many there are is a design decision, not a given.

Vented and openable skylights

A hinged or sliding leaf operated by a pole, a winder or an electric actuator, often with a rain sensor that closes it when the weather turns. Letting the hottest air escape at the highest point of a room does more for a stairwell than a fan will. It also adds a moving seal, a drive and wiring — all of which have to stay reachable for service.

Walk-on and floor glazing

Glass you can stand on, over a basement, a light well or a bridge. It is a different product from a rooflight: a thick multi-ply laminated build sized for the load it has to carry, with a sacrificial top ply and a slip-resistant finish. It is engineered case by case rather than picked from a range, and it is priced accordingly.

What it costs, roughly

Indicative ranges aggregated from Glassy’s published city pages — orientation for a conversation with a fabricator, not a quote.

  • Skylight₹350₹2,200per sq ft · across 8 cities

See the full Glass Price Guide →What moves the price, how the ranges are built, and every product side by side.

Skylight designs

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Every design here is built to order — the specialists we connect you with work to your sizes, in your city.

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Find a skylight specialist

Each city page below lists verified glass businesses in that city, an indicative price range for that market and an FAQ written for it. Pick your city, or search the directory directly.

Skylight8 cities

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Before you order a skylight

  1. Overhead glass must be laminatedThis is the one point to take away from the page. Laminated glass holds its fragments on the plastic interlayer when it breaks, so the pane stays in the opening instead of falling into the room. A single toughened pane does the opposite — it releases the whole panel as loose fragments. The usual overhead build is heat-treated glass that is then laminated, which gives you the strength and the retention together. If a skylight quote says only “toughened”, have it changed before you sign.
  2. Settle the slope and where the water goesWater has to leave the glass, and then leave the kerb. A dead-flat skylight holds water and dust, and dust that sits on glass through a monsoon leaves a stain no polish removes. Ask what minimum fall the fabricator’s system needs, and where the run-off is being taken — onto which part of the roof, into which outlet, not simply “off the edge”.
  3. The leak is almost never the glassSkylights leak at the upstand, the flashing and the junction with the roof finish. The kerb should stand proud of the finished roof level, the waterproofing membrane should turn up its face, and the flashing should lap over that turn-up — so water is shed by overlaps rather than held back by a bead of sealant. Ask to see that detail drawn before anything is fabricated.
  4. Plan for heat and condensationOverhead glass takes the midday sun far more directly than a vertical window of the same size, so a clear single pane over a room is a heater for most of the Indian year. A double-glazed unit with a Low-E coating cuts the solar heat gain and keeps the inner pane nearer room temperature, which also stops it running with condensation in an air-conditioned room. Ask where condensate inside the frame drains to.
  5. Decide how it will be cleanedOverhead glass collects everything the sky drops on it and shows every mark from below. Reaching it is straightforward from a terrace and awkward over a stairwell void — which makes access part of the design, not something to solve after handover.

Tools & guides for this job

Common questions

Does a skylight have to be laminated glass?

For overhead glazing, yes — treat it as the rule. Laminated glass keeps its fragments bonded to the interlayer when it breaks, so a failed pane stays in the opening rather than falling into the room below. Toughened glass on its own breaks into loose fragments, which overhead is exactly the outcome you are trying to prevent.

Toughened or laminated for a skylight?

It is usually not a choice between them: the standard overhead specification is both. The panes are heat-treated for strength and thermal safety and then laminated together, so the unit is strong and it holds together if it breaks. In a double-glazed skylight the laminated pane is normally the inner one — the pane facing the room.

Will a skylight make the room hot?

A clear single pane will, because overhead glass takes the midday sun almost head-on. The fixes are in the specification and the size: a double-glazed unit with a Low-E coating cuts solar heat gain substantially, an openable leaf lets hot air out at the top of the room, and a smaller skylight placed well often delivers more usable light than a large one placed badly.

Do skylights leak?

Badly detailed ones do, and it is almost always the kerb rather than the glass. The upstand should be raised above the finished roof level, the waterproofing turned up its face and the flashing lapped over it — a sequence of overlaps that sheds water, instead of sealant holding it back. Ask to see that detail before the skylight is made.

Can a skylight be opened?

Yes. Vented skylights use a hinged or sliding leaf with a pole, a winder or an electric actuator, often with a rain sensor. It is worth doing over a stairwell or a kitchen where you want the hot air out. It also adds a moving seal and a drive, so keep both reachable for service.

What does a skylight cost?

It depends on the form, the glass build, the opening size and your city, and an openable leaf costs more than a fixed panel. The range shown on this page is aggregated from Glassy’s published city pages and is indicative only. The Glass Price Guide has the detail, and a quote against your actual opening is the only real number.

Does Glassy make or fit skylights?

No. Glassy is a directory. We list verified glass businesses, fabricators and dealers across India and connect you with 2–3 of them in your city so you can compare. The work is done by the specialist you choose.

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