Hennegan and Associates is a proud supplier of The D.S. Brown Company’s J and JP – Series Seal Profiles.
The J and JP-Series Profiles includes an extruded elastomeric profile and a…
Hennegan and Associates is a proud supplier of The D.S. Brown Company’s J and JP – Series Seal Profiles.
The J and JP-Series Profiles includes an extruded elastomeric profile and a…
For over 20 years, Hennegan and Associates has been the leading supplier of fiberglass drainage systems to contractors all over the Midwest. Because no two bridges are the same, our bridge drainage…
Hennegan and Associates supplies three steel systems – Modular Expansion Joints , Strip Seal Expansion Joints and Fabricated Steel Plate Expansion Joints.
Hennegan and Associates supplies The D.S. Brown Company’s Delastic® Preformed Neoprene Compression Seals.