Gillan & Hartmann, Inc. Email Format

Engineering ServicesPennsylvania, United States11-50 Employees

Gillan & Hartmann, Inc. is a mid-sized engineering services firm based in Audubon, Pennsylvania, operated as a third-generation, family-owned business. With a history spanning more than five decades, it provides engineering and design solutions aimed at cost efficiency. The firm has completed more than four thousand projects across multiple sectors.

It emphasizes precise cost estimation and design quality, noting that design-based change orders account for less than 0.5% of the construction budget and that estimates typically fall within 5% of the awarded bid, with many proposals landing in the lower end of competitive bids. Gillan & Hartmann regularly collaborates with Project Architects for Healthcare, Commercial, Industrial, Institutional, Elementary and Higher Education, Multi-Occupancy Residential, and Governmental clients, and frequently acts as the Prime Professional to manage budget, schedule, quality, and commissioning. The firm maintains LEED AP, energy management, and green building expertise, with projects involving green architecture, cogeneration, total energy plants, and utility master planning, and it has developed a diversified client base.

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