One Team from Planning to Finish

Turnkey Contracting by Gillan provides design-build services in Illinois Valley that combine architecture, engineering, and construction under one roof.

When you need a building project completed in Illinois Valley without coordinating multiple contractors, architects, and engineers separately, design-build services bring all those roles together. You work with one team that owns the entire process, which means fewer delays caused by miscommunication and a clearer understanding of what the finished building will look like before construction begins.

Turnkey Contracting by Gillan handles design, engineering, and construction as a single coordinated effort. Early collaboration between designers and builders allows the team to identify cost-saving opportunities during planning, address site challenges before ground is broken, and adjust timelines based on real construction input. This approach reduces change orders, keeps the budget predictable, and shortens the overall project timeline compared to traditional methods where design is completed before construction teams get involved.

If you are planning a commercial or agricultural building project in Illinois Valley and want to avoid the back-and-forth that comes with managing separate contracts, contact us to discuss how design-build can work for your needs.

How Design and Construction Work as One

Your project in Spring Valley starts with a meeting where you explain your goals, site conditions, and budget expectations. The design and construction teams sit in the same room from the beginning, so structural decisions account for cost and scheduling from the first sketch. As the design develops, builders provide input on material availability, labor requirements, and constructability, which keeps the plan grounded in what can actually be built efficiently.

Once construction begins, you will notice that questions get answered faster because the people who designed the building are directly connected to the people building it. When a site condition requires adjustment, the team can adapt without waiting for external approvals or revised drawings from a separate firm. The project stays on schedule because decisions happen in real time, and the finished building matches the plan because the same team was responsible for both.

This process works well for projects where timing matters, budgets need to stay firm, or the scope involves technical challenges that benefit from early collaboration. It does not replace traditional bidding if your project is required to follow a design-bid-build process, but for private development and agricultural projects, it typically delivers faster results with fewer surprises.

We know these projects can feel complicated

People who are new to design-build often ask how the process differs from hiring an architect first and a builder later, or how pricing works when design and construction costs are bundled together. These are the questions that come up most often.

What happens if I need changes after design is finished?
Changes are easier to manage because the design and construction teams are already working together. You submit the request, the designer revises the plan, and the builder adjusts the schedule and budget without starting a new contract negotiation.
How does pricing work when design and construction are combined?
You receive a single proposal that includes design, engineering, permits, materials, labor, and project management. The cost is developed collaboratively, so the design team knows the budget constraints while they are drawing, which reduces the chance of designing something you cannot afford to build.
When is design-build a better choice than hiring separate teams?
Design-build works well when you want faster delivery, need cost certainty early, or are working on a site with conditions that require flexible problem-solving. It is especially useful for commercial buildings, agricultural facilities, and projects where timing affects business operations.
What if I already have a design from another firm?
The team in Spring Valley can work from existing plans if they are complete and constructable. They will review the drawings, identify any gaps or conflicts, and provide feedback on cost and schedule before moving forward.
How long does a typical design-build project take?
Timelines depend on project size, complexity, and permitting requirements, but design-build generally shortens the schedule by overlapping design and early construction planning. You often save several weeks compared to waiting for full design completion before selecting a builder.

If you are planning a building project in Illinois Valley and want to work with a team that handles everything from initial drawings to final walkthrough, Turnkey Contracting by Gillan can walk you through what that process looks like for your specific site and goals. Reach out to start the conversation.