Anyone can promise quality. We would rather show you the certificate, the test results and the warranty.
A window is not a product you judge on the day it is installed. It is judged on the thousandth morning you open it — when the monsoon has come and gone fifteen times, when the road outside got louder, when the handle has been turned ten thousand times. Everything below exists so that morning goes well.
VITRÜX is built on the manufacturing backbone of Shreeji Window Systems — fifteen years of fenestration and more than a thousand completed projects across North India, from single homes to full developments.
That experience is not decorative. It is why we know which gasket fails in a Chandigarh summer, how a hill site behaves differently from a city plot, and why a millimetre of tolerance at the factory becomes a rattle in year three.
Every system is assembled at our own facility in Derabassi — not sourced, not sub-contracted, not assembled to a price.
Our quality management system is independently audited to an international standard.
Shreeji Window Systems holds ISO 9001:2015 certification for the manufacture and installation of uPVC and aluminium doors and windows — issued and audited by TÜV Nord, one of Germany's most established certification bodies.
ISO 9001:2015 is not a logo you buy. It means an external auditor examined how we document, manufacture, check and correct our work — and returns to re-examine it. The certificate is verifiable independently.
For architects and specifiers, it is the simplest answer to a fair question:
how do I know this factory does what it says?
Most fenestration in India is assembled from whatever a catalogue offers. We work the other way — starting from the problem the building actually has, and engineering the system to answer it.
It is why our minimal sliding system carries an integrated mesh shutter when no other minimal system in India does. It is why our tracks conceal to 29mm rather than sitting proud of the floor. It is why we specify concealed drainage rather than punching visible weep holes through a clean profile.
Each of those is a small thing. Together they are the difference between a window that was specified and a window that was ordered.
Every VITRÜX system is tested for water tightness, air permeability, wind resistance and acoustic insulation. Here is the whole range, in one table.
| System | Water | Air | Wind | Acoustic |
|---|---|---|---|---|
| Sublime | E750 | Class 4 | Class A3 | 39 dB |
| Soglia | E750 | Class 4 | Class A3 | 39 dB |
| Soglia Bi-Fold | Class A3 | Class 4 | Class A3 | 39 dB |
| Master Glide | Class 4A | Class 2 | Class B3 | 34 dB |
| Phantom Glide | Class 9A | Class 4 | Class C4 | 39 dB |
| Phantom Glide LS | Class 9A | Class 4 | Class C4 | 40 dB |
| Curtain Wall | — | — | — | 40 dB |
Acoustic performance varies with the glass specified. Full test certificates and technical drawings are available on request for any system.
Not on the profile alone. On the system — because that is what you actually live with.
Aluminium profiles and their powder-coated or anodised finish.
Rollers, hinges, locking mechanisms and handles across the system.
The compression gaskets and seals that keep weather and noise out.
Many suppliers warrant the aluminium and quietly exclude the parts that actually move. We do not. Full warranty terms are issued in writing with every quotation.
Every system is made to your opening. We do not force a building to fit a standard size.
The team that made your windows fits them. No handing off to a third-party crew.
A brand small enough that the person whose name is on it still answers for the work.
Drawings, sections, test certificates and specification support, on request.
Powder coat, anodised and wood-effect finishes across every system in the range.
The partnership begins at handover, not at the advance. We remain reachable.
Certificates and numbers only go so far. Come and turn the handle.
Tell us about the opening and we'll come back with a considered figure — not a guess.
Prefer to talk? Call +91 771 0448 771 or email info@vitrux.in. Showroom open Mon – Sat, 10 AM – 7 PM.
We answer our own phone, and we'll answer this too. Expect a reply within one working day.