adco is comprised of over thirty HVAC professionals. Our people average over 15 years experience with adco and over 20 years in the HVAC industry. We have employees with 30 and 40 years tenure at adco! At adco, we do not “sub-out” work. Everything from service technicians to sheet metal mechanics is handled by an adco employee. That way we can take full responsibility for the quality of work we perform.

Our Leadership

headshot-mwolfeMark Wolfe
adco is owned by Mark Wolfe. Mark has an extensive background of over 20 years experience in corporate leadership positions. Active in the community, Mark serves as a City Council member for the City of Manassas. Mr. Wolfe is also the Chairperson for the Prince William County Arts Council and volunteers his time as the Executive Director of Manassas Ballet Theatre.

headshot-kwardKay Pierce: Kay and her department are responsible to all billing and payables issues as well as HR administration. Kay has been with adco for 23 years.


headshot-bpierceBilly Pierce: adco’s Director of Field Operations. With over 25 years experience in the HVAC industry, Billy is responsible for the scheduling and performance of all of adco’s field personnel.


headshot-russPaul Harris: Senior Project Manager, Design and project manage comfort solutions for commercial and residential applications.