In the central office the mood is always positive, uplifting. Senior Project Managers and VPs give much guidance and coworkers cooperate within or between divisions.
Balance of personal/work life can be difficult. Common week is expected at 50 hours, but can often stretch to 60+ hours without warning.
Secondary offices on job sites have varying moods and styles. While the final culture is similar, there can often be increased stress without as immediate of assistance due to distance from the central office.