Capitol Mechanical is an employee-owned company founded in 1971, operating from Sun Prairie, Wisconsin. With over five decades of experience, the firm delivers high-quality, energy-efficient, and sustainable HVAC solutions to commercial clients, with a focus on building environments across Dane County and the broader Wisconsin region.
The company operates through three divisions. Capitol Mechanical handles design and build projects, while Capitol Air Systems provides sales, service, and maintenance. Capitol Automation specialises in building automation systems. This structure enables the firm to offer end-to-end solutions from initial system design through long-term maintenance partnerships, supported by 24/7/365 service availability.
Capitol Mechanical's technical expertise spans HVAC and building automation systems. The company emphasises collaboration with other design professionals, skilled field execution, and thorough training for its workforce. As an employee-owned firm, it maintains a culture geared toward sustained client relationships and operational reliability in commercial building environments.
