Top 10 Duct Manufacturers in India

When looking for reliable ductwork suppliers, especially for rectangular / GI/stainless-steel ducts for HVAC or industrial ventilation, these manufacturers consistently stand out for quality, reliability, and nationwide reach. Here are the Top 10 Duct Manufacturers in India

1. Degree Day Pvt. Ltd.

Degree Day Pvt. Ltd. is known across India as one of the go-to names for high-quality rectangular ductwork. They manufacture everything from GI and stainless-steel ducts to complete prefabricated systems and heavy-duty exhaust ducts designed for strong airflow and minimal leakage.

Beyond rectangular ducts, Degree Day offers a full range of HVAC solutions, including TDF, spiral, oval, and custom-built ducting, all backed by their ISO 9001:2015 certification. Their manufacturing setup features advanced CNC equipment like auto-folding, auto-seaming, and plasma cutting machines, ensuring precision on every project.

Thanks to this combination of technology, quality, and versatility, Degree Day serves a wide variety of sectors, from residential and commercial buildings to large-scale industrial facilities.

2. D.S. Ductofab Systems Pvt. Ltd.

Ductofab supplies a full range of HVAC ducting solutions (TDF, spiral, rectangular, oval) and is ISO 9001:2015 certified. They serve large clients across India, including major contractors and industrial players.

3. Sai Ductfab

Based in Delhi-NCR, Sai Ductfab specializes in custom GI-duct fabrication. Their offerings are widely used in industrial ventilation and HVAC projects, especially where project-specific customization and competitive pricing matter.

4. Leminar India

Leminar offers rectangular duct systems manufactured with modern CNC machinery (auto-folding, auto-seaming, plasma cutting). Their ductwork is designed for minimal air leakage and high build quality suitable for commercial, industrial, and institutional projects.

5. Globale Aircon

Globale Aircon produces a wide variety of ducts, including GI, stainless steel, aluminium, spiral, round, oval, and rectangular ducts. This flexibility makes them useful for diverse applications (residential, commercial, industrial).

6. Ductovent

Ductovent offers GI exhaust ducts, GI rectangular ducts, oval ducts, and industrial air ducting solutions. They are a viable option for industrial ventilation and exhaust systems across various industries.

7. Shri Jai Shakti Corporation

Listed among the top rectangular-duct manufacturers in multiple industry directories, they serve industrial ducting needs across India.

8. Badruddin Alibhai Contractor LLP

Also recognized among India’s duct suppliers, this firm offers ducting solutions and is often featured in supplier directories for industrial ventilation and HVAC work.

9. Aryash Air Technology

Aryash Air Technology appears regularly in listings of HVAC & rectangular-duct suppliers, serving a variety of industrial clients.

10. Aircare System & Solution India Pvt Ltd

Among the names appearing for rectangular-duct manufacturing and supply, useful for medium-sized HVAC/ventilation projects.

What Makes a Good Duct Manufacturer?

When evaluating any of the above companies (or others), consider:

Quality of materials (GI sheet, stainless steel, gauge thickness, corrosion resistance)
Fabrication standards (prefab vs onsite, leak-proof joints, proper insulation where needed)
Adherence to HVAC / industrial specifications (load, pressure rating, duct type: rectangular / round/oval/spiral)
Customization capability (sizes, fittings, transitions, supports)
Delivery & logistics (especially for large ducts)
Experience and past client base, especially if you need complex ventilation, industrial exhaust, or clean-room ducts

How This Helps Your Business (Or Customers)

For contractors & engineers: Having a curated list of reliable duct manufacturers helps with quick sourcing and avoids trial-and-error suppliers.
For clients or procurement managers: Allows comparing options across quality, customization, and price, improving confidence in purchase decisions.
For manufacturers themselves: A Useful benchmark list to study competitors and their offerings, helping define your own USP (material quality, lead times, custom fabrication, etc.).