We provide services to Builders, Developers, Commercial Contractors, State Highway, as well as Local and State Government. Our team consists of managers, estimators, and foreman that have been in the industry for over a decade, some for over 25 years. Our personnel are qualified, trained, and certified. We have a commitment to our customers as well as the environment.


SMI Services will continue to be the front runner in sediment and erosion controls throughout Maryland, D.C. Metro, Virginia, and Delaware areas. We are dedicated to making sure our customers have outstanding quality, competitive pricing, and professionalism using sustainable practices throughout all stages of a project from start to finish.

Prospects and clients will encounter a team atmosphere from all members of our staff, and an attitude of genuine caring and interest in your needs, concerns and dreams for the project. Our staff and field crews will present a neat, well-mannered, professional appearance and conduct business to meet the needs of all customers.

About the Business

Founded in 1998, Site Maintenance, Inc. was the parent company of the organization. In 2004 as the growing demand increased in the erosion control industry, we branched out to the Eastern Shore of Maryland. SMI Services, LLC was also established as another division of our expansion.

In 2010, the Eastern Shore office relocated to Delaware to follow growing demands along the Delmarva Penninsula. In December 2011 the company rebranded and is running under new ownership.  It is now conducting business as SMI Services of Delaware.


Veteran Owned Small Business

In the Press


  • Fencing for Erosion Control (Silt Fence/Super Silt Fence)
  • Retaining Walls
  • Perveous Pavers
  • Stormwater Pond Management
  • Water, Sewer, & Storm Utility Repair & AdjustmentsRepair
  • Bio-Retention Pond
  • Hydroseeding

Serving the Mid-Atlantic Region

Bowie, MD / DC Metro

SMI Environmental Site Services - Maryland

(301) 464-7660

Mount Airy, MD

SMI Environmental Site Services - Maryland

(443) 953-8718

Selbyville, DE

SMI Environmental Site Services - Delaware

(302) 436-4410

Kenton, DE

SMI Environmental Site Services - Delaware

(302) 514-9681

Hamilton, NJ

SMI Environmental Site Services - Mid-Atlantic

(609) 981-6206

Offices are Independently Owned