Three Diamond UPVC is a Chennai-based UPVC profile manufacturer and wholesale supplier producing lead-free casement, sliding and industrial-grade profiles for fabricators, builders, construction companies, architects and dealers across Tamil Nadu. Two stocked warehouses. Bulk orders. Fast dispatch.
Most UPVC profile buyers in Chennai face the same problem: layers of traders between the extrusion line and the fabrication table, each adding margin without adding value. As a UPVC profile manufacturer in Chennai, Three Diamond UPVC removes those layers. Profiles move from production to our own warehouses in Vadaperumbakkam and Thirumudivakkam, and from there directly to your workshop, project site or dealership — at true factory-direct wholesale rates.
Every batch is produced from lead-free, calcium-zinc stabilised UPVC compound enriched with titanium dioxide. That means profiles that stay white under the Tamil Nadu sun, resist coastal salt air, and meet the safety expectations of government and institutional projects that now routinely specify lead-free material. Our profiles have been tested at CIPET (Central Institute of Petrochemicals Engineering & Technology) — ask us for the test report along with your quotation.
| Series | System | Wall Thickness | Best For |
|---|---|---|---|
| 60 Series Casement | Openable windows & doors | 2.5 mm | Apartments, villas, offices |
| 60 Series Sliding | Sliding windows & doors | Up to 3.5 mm | Balconies, large glazing |
| 80 Series Industrial | Heavy-duty 6-chamber | 2.5 mm | Coastal, industrial, high-wind zones |
| Auxiliary Sections | Connectors, adapters, beading | 2.0–2.5 mm | System completion & joinery |
All series are available in classic white plus laminated woodgrain finishes (Golden Oak, Walnut Brown) and Midnight Black premium matte. Matching hardware and accessories — EPDM gaskets, steel reinforcement, sealants — ship from the same warehouse, so fabricators source a complete system in one order.
| Factor | Buying from Three Diamond (Manufacturer) | Buying from a Trader |
|---|---|---|
| Pricing | Factory-direct, tiered by volume | 2–3 margin layers added |
| Batch consistency | Single source, traceable batches | Mixed brands and batches |
| Test certificates | CIPET report supplied on request | Rarely available |
| Custom colours / laminates | Made to order (7–14 days) | Stock-dependent |
| Supply continuity | Production-backed, project-long rates | Spot availability |
Our order book is 100% B2B: UPVC window fabricators buying profile lengths and hardware as production input; builders and construction companies locking project-long rates for residential towers and commercial developments; architects and interior companies specifying lead-free, UV-stable systems; dealers and distributors stocking our range across Tamil Nadu; and government and institutional contractors who need documented, tested material. See industries we serve for details. We do not sell retail — if you are a homeowner, we will gladly connect you with a fabricator partner in your city.
Send your requirement now — series, quantity and location — and receive a tiered wholesale quote within 2 business hours.
Related: UPVC Profile Supplier Chennai • Wholesale Supplier Tamil Nadu • Window Profile Manufacturer • Door Profile Manufacturer • Become a Distributor