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Manufacturing · How It Works

Our uPVC Window Manufacturing Process

Here's how Glassterr manufactures a uPVC window, step by step, at our Coimbatore factory.

How it works

Our process turns quality profile into a finished window built to your opening — a sequence of precise steps, each done in-house.

The steps

1
We measure your openings on site for exact dimensions
2
Profile is cut to size for each frame and sash
3
Steel reinforcement is inserted where needed
4
Corners are welded into a strong, sealed frame
5
Hardware and gaskets are fitted
6
Glass is glazed into the frame
7
Each unit is checked before dispatch and fitting

What this means for you

Because every step is in-house, the finished window is built precisely to your opening and quality-controlled throughout — no outsourcing, no guesswork.

Questions

Frequently asked

How are uPVC windows manufactured?

Profile is cut to your measurements, reinforced with steel where needed, welded into a sealed frame, fitted with hardware, glazed, and checked before fitting.

Is the whole process in-house?

Yes — every step happens at our Pannimadai factory with our own team.

Why does an in-house process matter?

It means the window is built precisely to your opening and quality-controlled throughout, with no outsourcing.

From our range

What we make

uPVC Sliding Windows

Multi-track windows that need no swing space.

uPVC Casement Windows

Side-hung sashes for full airflow and the tightest seal.

uPVC Performance Systems

Double-glazed acoustic and thermal windows.

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Talk to the maker, not a middleman

Tell us your openings or your project, and we'll measure, advise, and quote — factory-direct from our Pannimadai works in Coimbatore.