Building, art, and the details that make a place feel alive. Based in Southampton, Hartmann Co. brings together GCGM Building Corp. and Hartmann Gallery under one point of view: make the work personal, make it well, and make every room worth remembering.
The House
Homes, renovations, and custom work built with patience, precision, and pride in what remains unseen. GCGM Building Corp. is shaped by the belief that the best spaces are felt in the details long after the work is done.
Build
A Southampton gallery for original work, creative exchange, and art experienced up close. Hartmann Gallery was created to feel alive: welcoming, personal, and always in conversation with the people who walk through it.
Art
Design and Build
