Jhn GroupWrite a Review781-826-5461Be the first to review!269 Candlewood Ln, Hanover, MA 02339Hi there!Be the first to review!5First-class4Better than most3About what I expected2Not the worst...1DisappointingClick to RateMore Business InfoBBB RatingA+BBB Rating and Accreditation information may be delayed up to a week.HoursDo you know the hours for this business?CategoriesProfessional Engineers, Consulting Engineers, Electronic Engineers Suggest an Edit