Lang Constructors, Inc. — MI - Region 4 - General Contractor

Contract Number MI-R4-GC041025 is an Indefinite Delivery-Indefinite Quantity (IDIQ) construction contract awarded by Sourcewell to Lang Constructors, Inc. for general construction services in Region 4 of Michigan. Executed on May 13, 2025, the agreement establishes a two-year initial term with the possibility of extensions for a total duration of up to five years. The contract provides a framework for participating entities to procure general construction and various trade-specific services, including mechanical, electrical, plumbing, roofing, and paving, utilizing a Construction Task Catalog and specific price adjustment factors for prevailing and non-prevailing wage work. The scope of work is governed by comprehensive technical specifications following CSI Divisions 01 through 46, covering everything from site preparation and demolition to specialized installations. Performance is measured by strict adherence to industry standards such as NFPA, ASTM, and NECA, with inspection and acceptance occurring at the project destination. While the contract does not list a total aggregate value, it utilizes a unit pricing structure and specific allowances for materials. Award and compliance are heavily weighted toward sustainable design, requiring mandatory submittals for Environmental Product Declarations, recycled content, and waste management plans.