About Connelly & Associates, Inc.
Connelly & Associates, Inc. is a leading drilling contractor serving
Frederick, MD and the Mid-Atlantic region. We specialize in geotechnical and environmental drilling, sonic drilling, limited access projects, and water well and geothermal drilling.
Frederick, MD and the Mid-Atlantic region. We specialize in geotechnical and environmental drilling, sonic drilling, limited access projects, and water well and geothermal drilling.