Site Development

Earth moving, underground utilities, concrete and paving for full site development packages.

Full service excavation and remediation of unsuitable soils.

Excavation Shoring
Soil Remediation
Excavation Shoring

Steel sheeting, soldier pile and lagging, slide rail shoring systems for clean and safe excavation projects.

Retaining Walls

Modular, gravity block and concrete retaining wall systems.


Concrete recycling, rock crushing and screening.

Full service underground utility services for Urban environments.

Full service underground utility services for Urban environments.

Underground Utilities

We view all of our clients as business partners.

After 30 years of experience in the industry,

Joe Porchetta started GMP Contracting, LLC in 2010 to offer quality site development to clients in the Tri-State area.  With decades of experience, the GMP team offer a full service experience from Pre-Construction Budgeting to turn key site solutions.




Projects Completed





For any inquiries, questions or commendations, please call: 908-205-0047 or fill out the following form

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Head Office

2240 South Clinton Avenue

South Plainfield, NJ 07080

Tel: 908-205-0047

Fax: 732-400-6936


To apply for a job with GMP Contracting, please send a cover letter together with your C.V. to: