Ductworks Press Release Certified Ventilation Inspector May 14, 2010 by admin Local HVAC System Inspector Achieves Prestigious Certification WASHINGTON, DC – Local contractors Donald Kaufman, Paul Frisk, Edward Frisk, and Jason Erb of Ductworks, Inc has successfully completed the examination process to be named a Certified Ventilation System Inspector (CVI). The certification, which is administered by NADCA – The HVAC Inspection, Maintenance and Restoration Association, is […] Read more » Air Duct Cleaning Certified Ventilation Inspector CVI Ductworks Website HVAC HVAC Maintenance NADCA
