About Peter Grenier of Massachusetts began working in the construction industry when he was just 16 years old. Peter Grenier Massachusetts was named Chief Engineer of the Historic Hawthorne Hotel in Salem, Massachusetts, after three years of laying concrete foundations. In order to start his own construction company, Peter Grenier from Massachusetts worked there for three years. In his native New Hampshire, Peter Grenier built or refurbished a total of six new single-family homes. For four years, he worked on home renovations and new construction in the Palm Beach-Ft. Lauderdale area.