Business Details
50+ Years
experience
Leading Manufacturer of HVAC Duct Systems
McGill AirFlow has been a trusted leader in the HVAC industry since 1951, pioneering the manufacture of spiral duct systems that set industry standards. Our family-owned business combines decades of engineering expertise with innovative product design to deliver high-performance ductwork solutions for commercial and industrial applications. With a nationwide Duct Express fulfillment network and a commitment to quality, we provide durable, efficient systems that meet the evolving needs of modern construction.Our extensive product line includes single-wall, double-wall, and rectangular duct options, along with antimicrobial-coated solutions for enhanced indoor air quality. Backed by rigorous testing and compliance with SMACNA standards, our products ensure reliability, energy efficiency, and long-term value for clients across North America.
Services
Single-Wall Duct Systems
Double-Wall Insulated Duct
Rectangular Duct Solutions
Antimicrobial Coatings
Exposed Duct Design
Custom Fabrication
Technical Support Services
Installation Guidance
Product Literature
Current Awareness Service
Details
- Year established: 1951
Highlights and features
- We pioneered spiral duct manufacturing in the USA with 70+ years of industry leadership
- Our products meet SMACNA 1995 HVAC construction standards for guaranteed quality
- Nationwide Duct Express fulfillment ensures rapid delivery across North America
- Double-wall systems offer 25+ dB noise reduction compared to fiberglass alternatives
- SilverGuard antimicrobial coating provides EPA-registered protection against microbial growth
Associations and certifications
- SMACNA
- UL-181
- EPA Registered
Services
Single-Wall Duct Systems
Our single-wall duct systems combine cost-efficiency with reliable performance for standard HVAC applications. Fabricated from galvanized steel, stainless steel, or aluminum, these systems feature precision-engineered seams that minimize leakage while maintaining structural integrity. Available in round, flat oval, and rectangular configurations, they offer versatile solutions for commercial and industrial ventilation needs.
Double-Wall Insulated Duct
Double-wall insulated ductwork provides superior thermal and acoustic control through its sandwich construction of metal shells with internal insulation. This design reduces energy loss by up to 70% compared to single-wall systems while maintaining airflow efficiency. The insulation layer also dampens operational noise by 25-30 dB, making it ideal for noise-sensitive environments like hospitals and schools.
Antimicrobial Coatings
SilverGuard antimicrobial coating technology uses silver ion exchange to inhibit microbial growth on internal duct surfaces. This EPA-registered solution protects against bacteria, mold, and fungi in HVAC systems, maintaining indoor air quality in critical environments like food processing facilities and healthcare institutions. The coating remains effective for the product's lifespan without requiring maintenance.
Exposed Duct Design
Our exposed duct systems integrate functional performance with aesthetic appeal for visible installations. Custom-finished surfaces and seamless design elements create visually cohesive architectural statements while maintaining HVAC efficiency. The systems incorporate vibration-dampening features and specialized hanger systems to ensure both performance and visual integrity in commercial spaces.
Technical Support Services
Our technical team provides comprehensive support including system design optimization, performance calculations, and installation guidance. The Uni-Duct design software enables precise acoustic and thermal modeling while our field consultants ensure proper system implementation. We also offer training programs for contractors and engineers working with our specialized duct systems.
Questions
What types of duct systems does McGill AirFlow manufacture?
We produce single-wall, double-wall, and rectangular duct systems in round, flat oval, and rectangular configurations for commercial and industrial HVAC applications.
What materials are available for your duct products?
Our ductwork is available in galvanized steel, stainless steel, aluminum, and PVC-coated galvanized steel with optional antimicrobial coatings.
How does your double-wall duct improve energy efficiency?
Double-wall construction with insulation layers reduces thermal conductance to 0.09 BTU/hr/ft²/°F, minimizing heat loss and condensation risks.
Do you offer antimicrobial protection options?
Yes, our SilverGuard antimicrobial coating provides EPA-registered protection against bacteria, mold, and fungi in HVAC systems.
What support services do you provide for contractors?
We offer technical design assistance, Uni-Duct computer-aided system design, and nationwide Duct Express fulfillment services for rapid delivery.
Are your products compliant with industry standards?
All products meet or exceed SMACNA 1995 HVAC construction standards and UL-181 safety requirements for duct system performance.
