Glassterr manufactures uPVC windows and doors at our Pannimadai factory in Coimbatore. German-engineered profiles, produced with precision machinery and assembled with branded quality hardware — sold factory-direct, with a warranty, and no middleman between you and the people who build them.
Ten product lines, each manufactured to your opening size. Explore any product for construction detail, glazing and hardware options, and answers to common buyer questions.
Smooth multi-track windows that need no swing space.
View productSide-hung sashes that open wide for full airflow.
View productTwo ways to open — tilt for air, turn for cleaning.
View productPicture panes and arched shapes that frame a view.
View productHigh-set vents for kitchens, baths and utility areas.
View productFloor-to-ceiling panels that glide along a track.
View productTwin-leaf doors that open wide to garden or balcony.
View productConcertina panels that fold away to one side.
View productSlim-framed internal glazing with an integrated door.
View productDouble/triple glazing built for noise and heavy rain.
View productWhen you order from Glassterr, you deal with the factory that fabricates your windows — not a marketplace passing the job down a chain.
No aggregator, no dealer layer. The quote comes from the people who cut and weld the profile.
German-engineered multi-chamber uPVC systems with quality hardware and weather sealing.
Every unit is measured on site and manufactured to that exact size — nothing off-the-shelf.
A straightforward sequence. We describe each step plainly and make no promise on timing — we will tell you what to expect for your specific job when we measure.
Tell us your requirement by WhatsApp, call or the quote form. We discuss products and options.
We measure your openings on site so every unit is made to the exact size.
Profiles are cut, welded and assembled at our Pannimadai factory with your chosen glazing and hardware.
Our team fits the finished windows and doors and walks you through operation and care.
“The finish on the sliding windows is genuinely premium. We visited the Pannimadai factory before ordering and seeing the profiles being made settled it for us.”
“No pushy sales talk at all. They measured, explained the hardware options plainly, and let the work speak. The casement windows shut beautifully.”
“We compared several options online and then visited Glassterr. Dealing straight with the maker meant every question got a real answer. Quality of the French doors is excellent.”
Hand-picked guides for the most common questions we get — by product type, by room, and by topic. All written by our team, none generic.
Send your requirement and we will get back with options and an estimate. Or visit us in Pannimadai and see the profiles for yourself.