About Us
Building With Purpose. Delivering With Integrity.
Turnkey Contracting by Gillan was founded in 2024 by Liza and Jeff Gillan as an expansion of their family’s long-standing involvement in construction, infrastructure, and service-driven work across North Central Illinois. Built on a foundation of experience, accountability, and strong operational leadership, Turnkey provides commercial and agribusiness construction solutions that support the day-to-day needs of their client’s business.
As a family-owned company, we combine hands-on expertise with a commitment to reliability and long-term value. Whether constructing one building or a greenfield facility, upgrading an existing facility, or managing site improvements, we approach every project with the same focus: deliver work that stands up to real-world use and serves the people who depend on it.
Turnkey Contracting by Gillan is driven by leaders who bring decades of construction experience, industry knowledge, compliance expertise, and operational strength. Together, we provide clear communication, dependable scheduling, and results that meet industry standards and the expectations of our clients.
Our Mission
To deliver high-quality commercial and agribusiness construction services with transparency, craftsmanship, and dependable follow-through — ensuring every project is built to perform and built to last.
Our Values
- Integrity
We do what we say we will do, from the first conversation to the final walkthrough. - Workmanship
Every project reflects the craftsmanship and care we would expect on our own property. - Accountability
Clear communication, defined expectations, and a structured approach guide every phase of your project. - Longevity
We build relationships — and structures — that stand the test of time.