Corporate Officers

David Dugger SKMES President

David Dugger

President & CEO

David Dugger started his mechanical construction career in 1971 as a sheet metal and piping apprentice while studying mechanical engineering at the University of Tennessee. He has held many management positions during his career as well as project management and estimating. David has been involved with a variety of projects in terms of both in size and complexity ranging from healthcare, manufacturing facilities, institutional, commercial office and mix-use buildings. He holds licenses in over twelve states and has extensive experience in the design/build areas of mechanical construction. David is a strong supporter of the mechanical industry, previously serving as national and state president and board member in Tennessee and other national and local committees.

Gary Coulter SKMES Senior Vice President

Gary Coulter

Senior Vice President

Gary Coulter has more than 35 years of experience in plumbing and piping work. He entered the field in 1974 and worked on projects ranging from schools and hospitals to industrial jobs. Gary started working for ShoffnerKalthoff in 1984. He became Senior Vice President of SKMES in 2014. Gary has been involved with numerous projects involving pre-construction services, design/build, plan and spec and negotiated work.

Todd Wolf SKMES Chief Financial Officer

R. Todd Wolf

Chief Financial Officer

Todd Wolf earned an accounting degree from the University of Tennessee and is a Certified Public Accountant. His career spans the restaurant industry as well as construction. In 2006, Todd was offered the position of Chief Financial Officer of ShoffnerKalthoff. He currently oversees accounting, insurance, human relations and information technology for ShoffnerKalthoff. Todd is an active member of the Rotary Club of West Knoxville.

Kevin Keck SKMES Vice President of Construction

Kevin Keck

Vice President of Construction

Kevin Keck has more than 20 years of experience in the Mechanical Industry. He started working for ShoffnerKalthoff Mechanical in 1992 in the HVAC and Plumbing field. He worked as a sheet metal field foreman for more than 11 years and became a Project Manager and Estimator in 2005 and was promoted to Vice President of Construction in 2014.

Bill Campbell SKMES Vice President Electrical Division

Bill Campbell

Vice President of the Electrical Division

Bill Campbell has more than 30 years of experience in all facets of electrical construction, in both fieldwork and management. He graduated from the University of Maryland in Business Administration. He started working at SKMES in 2006 as Director of Operations and was promoted to Vice President of the Electrical Division in 2014. Bill has managed electrical projects up to 25 million dollars in size. His project experience includes healthcare, institutional facilities, industrial, high voltage, commercial and specialty projects.

Bob Howdeshell SKMES Vice President of Estimating

Bob Howdeshell

Vice President of Estimating

Bob Howdeshell has more than 40 years of experience in the mechanical industry and more than 10 years in leadership roles in that field. He worked for several contractors and engineering firms in Florida before coming to work at ShoffnerKalthoff in 1987. In 2014 he was promoted to Vice President of Estimating at SKMES. Bob has mechanical and plumbing licenses in four states and has worked on all types of projects from hospitals and industrial facilities to a multi-million dollar casino and hotel.

Brenda Duff SKMES Treasurer

Brenda Duff


Brenda Duff has more than 20 years of experience in the construction industry and over 30 years in the field of Accounting. Before joining ShoffnerKalthoff as Controller in 2012, she worked for another electrical contractor in Knoxville. She was promoted to Treasurer in 2014. Brenda splits her time volunteering for church and community organizations.