CustomAir Add-on


Custom Air Software

CustomAir Systems

ASVIC’s CustomAir Duct Systems Module is a comprehensive collection of utilities for drawing SEMCO Inc., CustomAir Duct Systems components including duct, fittings & various accessories.

(Loads local ASVIC page)


  • Straight Duct (Spiral Round & Oval)
  • Offsets, Elbows & Bends
  • Reducers & Transitions

And many more features…

Visit your local ASVIC office for more.


What our users say

“… this is the most functional toolbox for all engineering disciplines I have ever been privilege in using. Thank you for your wonderful product!”
John Lovin

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Help Desk

FAQ (Coming Soon)