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Commercial & Residential

General Contracting
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Honesty. Transparency. Integrity.

Holtz Builders was awarded with the 2022 South Central Wisconsin’s: 

Best of the Best Award

in both Commercial and Residential Project categories!

Holtz Builders, Inc. is a family-owned, general contractor that specializes in turnkey commercial projects and is skilled in custom residential homes, multi-family and employee housing, and tourist rides as well as attractions.

Established in 1993 by Tom and Marv Holtz, our company began in Reedsburg, WI, and transitioned to Lake Delton, WI in 2016 to better meet the needs of our customers. 

If you’ve visited Wisconsin Dells, you have seen some of our nationally award-winning projects like Take Flight at the Wilderness, Camp Gray, the Sundara Spa expansion, and most recently, the exciting SlideWheel at Mt Olympus!

Voted top places to work

“As an employee, I am proud to work at Holtz Builders because Holtz Builders is more than a company, it is a family. The leadership team motivates, inspires, and supports all staff and creates an environment where you feel valued. Walking into Holtz Builders you immediately feel welcome. The culture here is contagious and you instantly feel the pride and dedication in all the work that we do.”

Mandy Haerr

HR and Accounting Assistant

What We Do

General Contracting

HBI tackles projects with an immersive approach as early as possible, and the services we provide run the gamut of every phase of construction–start to finish.

Construction Management

We implement the project planning and performance that is imperative to ensure quality and overall project success, on time and within budget.

Design-Build Construction

We embrace the opportunity to create side-by-side with owners, architects, and developers, implementing a plan to provide the best solution.

Happy Employees


Total Design Awards

Sq ft - Largest Project

Our Award Winning Work

Holtz Builders is proud to have built a multitude of projects that have received regional and national recognition from ABC’s Project of Distinction.

ABC Projects of Distinction are about recognizing the most impressive construction projects in Wisconsin. Entrants do not compete against other contractors, but instead on a point-level basis. The distinct projects were evaluated by 22 judges who put their architectural, engineering, and construction knowledge to work with a tough set of criteria this past fall.