Meet the Team

John Boldt
Superintendent of Service, HVAC
Years at Cahill: over 28
Technical Certifications: NATE and EPA certified, RSES trained, NCI certified for carbon monoxide testing
Personal Info: Married 28 years with 2 children. Enjoy cooking, closed course road racing and carpentry
847.425.4717
boldt@cahillinc.com

Dave Charles
Sales Engineer for Heating, Ventilation and Air Conditioning
Years at Cahill: 17
Technical Certifications: Licensed HVAC Contractor, Full Member of ASHRAE (American Society of Heating, Refrigeration and Air Conditioning Engineers), Member of USGBC (U.S. Green Building Council), Carrier Geothermal Heat Pump Certified
Expertise: Forced air systems (furnaces, air conditioners, duct design and load calculations), Hydronic systems (steam, hot water and radiant floor/panel heating), High velocity air conditioning systems (SpacePak and Unico) and Geothermal heat pumps.
Favorite Part About Job: Problem solving and Complete HVAC system design
Personal Info: Married 20 years with 2 children.  Spending time with my family, reading and motor sports
847.425.4731
847.514.8874 (mobile)
david@cahillinc.com

Dave Kessler
Installation Supervisor, IAQ and Home Health Specialist
Years at Cahill: over 18 (23 total years of experience)
Technical Certifications: NATE (gas heat, A/C, air distribution), NCI (carbon monoxide testing), HVAC diploma
Expertise: Forced air systems, Indoor Air Quality problems
Favorite Part About Job: Solving issues others would walk away from
Personal Info: Married with 3 children
Frequently Asked Question: How often should I change my filter?
847.425.4730
kessler@cahillinc.com