Building trades urge closing of off‑site prefab prevailing‑wage loophole; contractors warn of cost and enforcement issues

Unions representing construction trades, together with industry researchers and building‑trade presidents, urged the Joint Committee on Oct. 28 to close what they described as a loophole that allows public‑project work performed in off‑site fabrication shops to be paid below prevailing wages. Witnesses including shop superintendents, union officials and apprenticeship advocates told the committee that prefabrication now accounts for a substantial share of trade work (for example, sheet‑metal connections), and that not requiring prevailing wages for off‑site fabrication undercuts training, safety and local middle‑class careers.

Frank Callahan, representing building‑trades unions, and Karen Courtney of the Foundation for Fair Contracting said recent shifts toward shop fabrication make enforcement and certified payroll transparency essential so taxpayer dollars go to worker pay and training. Research witnesses cited studies linking prevailing‑wage regimes to higher apprenticeship enrollment and lower injury rates.

Contractors and trade shop owners — including Sullivan & McLaughlin, Klieberg Sheet Metal, and an audiovisual integrator — told the committee they rely on prefabrication as an efficiency and safety practice. They warned a statutory extension of prevailing‑wage requirements to off‑site shops would raise costs, complicate interstate work and potentially move fabrication outside Massachusetts. They asked for clearer statutory definitions (for example, "nonstandard items") and cautioned about enforcement challenges for work done out of state.

The committee heard requests for technical language and offered to work with both unions and contractors on statutory definitions and enforcement mechanisms. SB1288 / HB2120 (sprinkler testing and inspection) and other related bills were discussed in the same section of the hearing. No committee vote was taken.