Provide the Solution. | Mechanical Construction, Professional Services, General Trades & Job Order Contracting, and HVAC & Plumbing Systems Service for commercial and institutional clients and municipal agencies was established by Susan Nelson in 1995 to provide project management and mechanical systems expertise to Chicago area owners and contractors. Initially, Autumn’s MEP systems expertise helped clients to develop and manage new construction projects and/or building systems renovation programs. Autumn self-performs mechanical piping, equipment installation work, as well as mechanical and preventative maintenance services. Autumn's professional staff provides owner’s representation services including program management, project management, construction inspection, construction safety, and quality assurance for our client’s construction programs and projects.