Johnco Construction operates as one of the top commercial construction companies throughout Central Illinois. Based in Mackinaw, we are contractors who proudly serve Peoria, Bloomington, Normal, Champaign, Urbana, Springfield, Decatur and surrounding areas where our projects make a difference for those communities. In addition, our company supports autism awareness and other charities that benefit friends and neighbors in areas we serve. Founded in 1986, we deliver high-quality General Contracting and Construction Management services to our clients.

Johnco Construction is an experienced general contractor, with the capability to perform complex projects. The majority of our work comes from low bid contracts for communities. That places a special obligation upon us, to perform all things with excellence while keeping within budgetary constraints. We're pleased to say that we've lived up to these expectations and will continue to do so, whether we're serving communities or the private sector. We wholeheartedly embrace development that meets the needs of the present, without compromising future generations.

Johnco Construction knows the general contracting construction business hinges on intensive management. We are the problem solvers when it comes to planning, designing, building, people, materials and equipment. Our clients rely on us because we accomplish their vision for their projects with safe, functional structures. Furthermore, general contracting with us provides a collaborative environment that produces responsive, outstanding service. Johnco Construction offers a full range of general contracting services, from pre-construction engineering and design to construction on through project completion.

Johnco Construction recognizes every project, regardless of size, includes many moving parts. Consequently, not every owner has the time or experience to oversee project design, estimates and construction. Hence, we offer Construction Management services that ensure our clients get a final product constructed on time and within budget. Furthermore, our company will provide final construction that satisfies the needs and goals of the owner. In addition, our company motto - Build Safe, Build Proud - fosters pride in our workers that helps create safe structures for our clients.

What's new?

Morton School District #709 is looking to hire a few substitute school nurses. RN’s, LPN’s and CMA’s are encouraged to apply. Substitute school nurse are needed to cover in the absence of the regular school nurse and can also attend field trips with students who have complex medical needs. Please...

Posted on Mar 14, 2021  •  Facebook

We wanted to highlight one of our Project Superintendent' s, Betsy Thomas. Betsy started with Johnco in 2019 at a solar installation in Galesburg. After that, she oversaw building renovations at Beardstown Armory, then managed our Star Ginger Restaurant build-out @ Illinois State University. She is...

Posted on Mar 12, 2021  •  Facebook

Our Project Superintendent, Matt Stoner took his first ever selfie. Congrats Matt!

Posted on Mar 04, 2021  •  Facebook

Johnco is pleased to announce Michael Boffa as our newest Project Engineer. Michael holds a Bachelor of Science in Construction Management from Illinois State University and is a Veteran of the United States Navy. He will be assisting management on our Olympia School Addition and Renovation in...

Posted on Feb 12, 2021  •  Facebook

A general Contractor #BuildSafe #BuildProud

Posted on Mar 15, 2018  •  Twitter

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