For over 40 years, we’ve earned trust by doing things the right way — with pride, purpose, and proven results.
Where We Started.
Who We Are.
Founded in 1984 by George P. Mahoney, Jr., Monumental has grown from a small paving company into one of the Mid-Atlantic’s most trusted civil infrastructure contractors. With deep roots in Baltimore and an unwavering commitment to quality, our company was built on safety, integrity, and hard work — principles that still guide every job we do.
Now in its second generation of family leadership, Monumental takes pride in its reputation for exceptional teammates, dependable execution, and community-focused development. Our legacy is built on more than four decades of quality projects delivered for public agencies, general contractors, and private developers throughout the mid-Atlantic.
Monumental builds enduring infrastructure for the
communities we serve — safely, efficiently, and without
compromise.
Think Safe, Act Safe. If it’s not safe, we don’t do it.
We work as one, invest in development, and take pride in shared success.
We deliver high-quality work on schedule and without compromise.
We reject complacency, embrace innovation, and strive to get better.
Reputation is everything. We do what’s right, every time.
Whether you’re a public agency, private client, subcontractor, or vendor — we’d love to hear from you.
