Real Solutions From Southern Maryland Commercial Experts!


Great Mills Trading Post understands a commercial development of any size is a serious undertaking and we are committed to creating a proper project plan.  We strive for excellence with each project in Southern Maryland, from beginning to end.






For over 30 years Great Mills Trading Post has been serving the community in the Community as a General contactor for their commercial building needs in all major industries:

Local / County Government- St. Mary’s County Public Works & Transportation Department, St. Mary’s County Metropolitan Commission.
State Government- MD State, SHA...
Federal Government

US Navy- Patuxent River NAVAIR

Local & Regional Construction Companies


Great Mills Trading Post offers a wide variety of services in Southern Maryland and the surrounding counties.

Our services include: managing all phases of construction, permitting to build out including electrical and plumbing, general contracting and construction,  storm water management, demolition, paving, excavating, truck and equipment operations, aggregate materials, and more

About Great Mills Trading Post


GMTP places partnering with all stakeholders at the forefront of each project to ensure the preconstruction process goes as smoothly. We would establish goals to be reviewed at each progress meeting during preconstruction, including;

 Minimize risk and traffic maintenance for the public
 Ensure the site is safe for employees and traveling public
 Follow all MDE & Traffic Control Guidelines
 Protect existing wetlands and park areas
 Complete the project on budget and on schedule.

Areas Serviced by Great Mills Trading Post:

St. Mary's County, Maryland
Charles County, Maryland
Lower Calvert County, Maryland

Need Materials for a small job?
Contact our residential division.


Looking for new home construction?
Contact our real estate partners.

For all Your equipment needs.
Construction, Farm Equipment, Trucks, Trailers & more

Why Choose Great Mills Trading Post for your next construction project?

Very nice people go out their way to help u .
....Sam J.

Awesome place and people

.... William M.

Used the Trading Post for years. They have done excavating and paving work for me. Quality work and the prices were fair. In reference to there negative reviews on Google, Trading Post has many commercial vehicles my guess is 75 plus and your bound to get multiple phone calls I know from experience I have 4 delivery trucks and I field at least 2 calls a week complaining about a rock hitting there windshield or our truck suddenly stopped. It’s not the same driving a 20,000lb vehicle as it is a car. Reaction time is needed and every car wants to get in front of a dump truck. I know Trading Post and they are a great company who gives a ton to the community. I understand the offices frustration with phone calls but I would hope these negative reviews don’t affect anyone’s opinion on using the Trading Post for all there excavation paving or site utility work.

....George A.