Incorporated in November of 1998, GDI has been providing drilling services for the geotechnical, environmental and private irrigation well industries. Mike Granese, the company's Vice President, has 20+ years of drilling experience. Licensed NJ Well Driller and Pump Installer Alan Leavy joined the company in 2009, adding more versatility to the growing firm. Lynda Granese, President, and Anna Olivadoti, Treasurer/Secretary, form the administrative core of the company.
Along with NJ DOT and NJ Turnpike certifications, GDI boasts certifications as WBE, MBE and ESBE. Conveniently located in Shrewsbury, NJ, GDI is equipped to mobilize a variety of drilling and excavating equipment to virtually any project. Among the available rigs are a Mobile B-61, a Geofco Strata Star 15, a Mobile B-47 rubber tire ATV , an Acker SOIL-MAX rubber track rig, and a JCB rubber tire Backhoe.
Celebrating 20 Years in the Industry
Roadway and Bridge Improvements
Tri-state wide, GDI has been performing test borings for a wide array of roadway and bridge improvements. From single lane additions to complete bridge and culvert replacement.
From power plants to sewage treatment facilities, GDI has been an integral part of many of NJ's infrastucture upgrades. PSE&G, First Energy and NJ American Water are just a few of the entities relying on GDI for prompt, professional drilling services.
Private and Public Property Investigations
Whether it's a small, simple addition to an existitng structure or a tear down and rebuild, GDI has the equipment and personnel to perform the most challenging of drilling projects.
For any inquiries, questions or commendations, please call: 732-219-1661 or fill out the following form.
771 Shrewsbury Avenue
Shrewsbury, NJ 07702
To apply for a job with GDI, please send a cover letter together with your resume to: