Trinity Construction, Inc. Follow Us on Facebook: Trinity Construction Inc. is a mid-size general construction company that was founded in 1988 and incorporated in February 1997.... We are an insured and bonded company that can provide a complete line of construction services to meet your needs. We specialize in tenant fit-up and plant/facilities maintenance..., along with additions, alterations, renovations and new construction. We service commercial, industrial, educational and medical facilities in Central and Northern New Jersey. Our...