• Commercial
  • Educational
  • Government & Municipal
  • Healthcare & Eldercare
  • Industrial
  • Religious
  • Retail & Recreational
  • Special Projects

Pre-Construction Services

Quasius factors in time, budget, and feasibility during the planning of every project to make sure deadlines are met and costs are kept at a minimum.

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Construction Services

Quasius has project-specific teams that coordinate to maximize efficiency, providing our clients with exceptional value through a balance of productivity and quality.

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Special Projects Division

Quasius is dedicated to providing high-quality solutions to meet any size job through our Special Projects team by providing timely assessments, estimates, scheduling, and project completion.

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127 Years of Legacy

Four Generations Strong

Quasius Construction, founded in 1891, is Wisconsin’s longest-tenured private construction company. We have been family-owned and managed for four generations with no intention of slowing down!


Building Relationships...

Since 1891

Our Vision

Over our 127 year history, Quasius has expanded from a company specializing in residential construction to include commercial, educational, government, municipal, healthcare, industrial, religious, and retail construction. Our craftsmanship can be seen throughout Wisconsin in buildings such as the Sheboygan Police Department, Village of Fredonia Fire Station, and Lakeshore Technical College amongst many others.

Our vision

Building from the ground up or remodeling from the top down, Quasius brings experience and expertise to the forefront of your project.

"I think we had the best masons and carpenters possible for the job; I think they did a fantastic job."

Earl Glaeser

Expansion Committee Chairman

Quasius Testimonial

Recent blog posts

Sheboygan City Hall Renovation Update

Sheboygan City Hall Renovation Update

Feb 06th 2019

Quasius Construction is making great progress over at Sheboygan’s City Hall.

Quasius begins Construction on 7Penn Apartments

Quasius begins Construction on 7Penn Apartments

Jan 23rd 2019

Quasius Construction begins construction on Sheboygan lakefront properties newest multi-family apartment 7Penn.

Quasius Safety Update 7/11/18

Quasius Safety Update 7/11/18

Jul 13th 2018


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