Waltham-based Vantage Builders Inc. has completed a 23,000-square-foot office renovation project for Trane on behalf of Griffith Properties LLC in Wilmington.

The $925,000 project at 181 Ballardvale St. included demolition of the existing space and construction of seven offices, three conference rooms, two training rooms, and a new employee lounge and kitchen. New features include custom millwork, glass walls and a new energy management system.

The project team included architects Design-Science of Concord and Engineered Systems of Woburn.