Cranberry Construction is New Jersey's solution to excavation and heavy breaking problems. An OSHA certified company serving most of Northern & Central New Jersey as well as the N & PA area. We are a licensed and Insured company, proud to have expertise in: Our Specialty - Concrete Demolition (Interior & Exterior). Brokk Service (www.brokk.com). Rock Splitting & Hammering. Excavation & Grading....