About Our Company

Our clients tell us that we are doing a good job and that’s all the praise we need. Each project begins on the foundation of integrity and is managed with a close eye on value. It’s a model that yields our highest reward—trust. We’d love the opportunity to earn yours.

Executive Team

Mark Farley - President

Mark Farley


Mark Farley is President overseeing all construction and business development. He has over 25 years of experience in construction, and has overseen projects in commercial, residential, medical, retail, as well as numerous private schools and churches. Mark began employment with Seibert & Son in 1998 and took over leadership as President of the company in 2017.

Mark is a graduate of Georgia College & State University and married to Amy his wife of 18 years and father to two daughters, Sarah and Hannah. He enjoys time with family, grilling, playing golf, and is an active member of North Metro Baptist Church in Lawrenceville, GA.

Farley Family
Bill Langford - Vice President

Bill Langford

Vice President/Sr. Project Manager

Bill Langford is Vice President overseeing construction and project management as well as estimating and business development. He brings a wealth of knowledge with over 30 years of experience in the construction industry from superintendent to senior project manager. He has overseen a myriad of projects in commercial, medical, institutional, retail, multi-family and industrial projects. Bill began employment with Seibert & Son Inc. in 2000.

Bill is a graduate of Texas Tech University and married to Lisa his wife of 30 years and father to two adult daughters, Stephanie and Amelia. He enjoys time with family, the outdoors and traveling and is an active member of First United Methodist Church of Lawrenceville.

Langford Family
“It was apparent that your hands-on experience went far beyond most other firms, regardless of their stature. This was evident in the careful, creative and patient way you assembled the property…”
J. Robert White
Georgia Baptist Convention

Contact Us

Seibert & Son

1720 Spectrum Drive, Lawrenceville, GA 30043