Rectangular, Oval & Spiral Ducts | Degree Day HVAC India

Degree Day Pvt. Ltd. is a trusted leader in the HVAC industry and Central India’s largest Pre-Fabricated Duct manufacturer, offering complete ducting solutions for Rectangular Ducts, Spiral Ducts, Oval Ducts, and Pre-Fab Duct Systems. With over 25 years of experience and ISO 9001:2015 certification, we combine innovation, precision, and engineering excellence to deliver superior air distribution systems for industrial, commercial, and healthcare environments.

Our Rectangular Ducts are engineered for strength, accuracy, and performance. Manufactured from high-quality galvanized iron (GI), mild steel (MS), or stainless steel (SS), they provide robust airflow with minimal leakage. Each duct is fabricated in a controlled environment using plasma cutting and automated flanging equipment, ensuring precise dimensions, airtight joints, and long-lasting durability. Ideal for hospitals, cleanrooms, offices, and industrial facilities, our rectangular ducts deliver efficient, reliable ventilation under all conditions.

Spiral Ducts from Degree Day combine form and function to perfection. Their helical seam design minimizes air resistance and leakage while enhancing aesthetic appeal—making them ideal for exposed ducting in malls, airports, and commercial interiors. Lightweight yet durable, spiral ducts enable faster installation, reduced maintenance, and long-term energy efficiency. All our spiral duct products meet international SMACNA and ASHRAE standards for superior performance and sustainability.

Our Oval Ducts are the preferred choice for projects requiring compact yet efficient air distribution. Designed to save ceiling space without compromising airflow, oval ducts merge the aerodynamic properties of circular ducts with the spatial flexibility of rectangular ones. They are precision-engineered for smooth airflow, quiet operation, and easy integration into architectural layouts—perfect for modern commercial, retail, and institutional buildings.

As pioneers in Pre-Fabricated Duct Manufacturing, Degree Day has redefined duct fabrication with advanced, automated production technology. Every Pre-Fab Duct is custom-built off-site, ensuring consistent quality, exact sizing, and faster project completion. This process significantly reduces on-site installation time, labor, and material waste while maintaining high safety and cleanliness standards.

Our comprehensive HVAC expertise covers the entire project cycle—from design and fabrication to delivery, installation, and commissioning. We follow globally recognized standards including SMACNA, ASHRAE, and ISHRAE, ensuring that each duct system we produce is efficient, durable, and performance-tested.

For more than two decades, Degree Day Pvt. Ltd. has been the preferred partner of consultants, builders, and industries across India. Our commitment to innovation, precision manufacturing, and client satisfaction has made us a name synonymous with quality in HVAC ducting.

Degree Day Pvt. Ltd. — Central India’s foremost manufacturer of Rectangular, Spiral, Oval, and Pre-Fabricated Ducts. Delivering engineered airflow solutions built on trust, technology, and excellence.