Our History

What began as a family-run construction company in Niagara Falls, New York has evolved into one of the nation’s most trusted names in environmental cleanup. For over 100 years, Sevenson has built a legacy of integrity, performance, and results – one project at a time.

From Building Homes to a National Reputation as a Leading Environmental Remediation Contractor

Rooted in Remedial Construction
Expanded into Environmental Dredging

Since our inception, Sevenson has been a leader in remedial construction, delivering safe, efficient, and results-driven solutions for complex environmental challenges. Our foundation is built on decades of expertise in restoring contaminated sites to productive use.

Remedial Construction

Since our inception, Sevenson has been a leader in remedial construction, delivering safe, efficient, and results-driven solutions for complex environmental challenges.

Environmental Dredging

Our dredging operations use advanced techniques and equipment to safely remove, handle, and dispose of hazardous materials from rivers, lakes, and harbors, ensuring environmental health and compliance.

Federal Programs

Sevenson has been providing remedial construction and environmental dredging services to federal agencies since 1985.

Additional Services

Beyond our core specialties, we offer a range of complementary services, including site investigation, dewatering, waste transportation, and long-term environmental monitoring, delivering end-to-end project support.