All of our companies offer the best in customer
service available in the market.  Twin City Fan,
Aerovent and Clarage are all known for putting the
customer first.  All three companies offer:

o Start up Services
o Performance Testing
o Retrofit, repair/rebuild and replacement components
o Upgrade or problem resolution of our competitors
o Lab testing services
o Dynamic analysis including field vibration, balance
and alignment services.

Contact Air Source for the best air movement service
in the industry.
Twin City Fan Engineering Data Letters

Top Quality Service