The D. H. Griffin Companies (DHG) is a group of privately owned and integrated companies that provide contract demolition as well as environmental and site development services to both public and private sectors. DHG services include: •Demolition & Dismantling •Hazardous Materials Removal and Related Environmental Services •Equipment Installation & Plant Relocation •Concrete Cutting and Drilling •Infrastructure & Site Development •Heavy Highway and Civil Construction •New Construction •Recycling •Brownfield Site Redevelopment •Scrap Metal Recycling