Our History – an Experienced General Contracting Company

Maas Brothers Construction, Inc., is one of Wisconsin’s most experienced and most well-respected construction company firms. Founded in 1922 by brothers Albert W. and Alvin (Ollie) Maas in Watertown, the growing construction business survived the Great Depression, with projects including Carillon Tower at UW-Madison, one of the most distinctive visual features of the campus (1936), and the iconic P.J. Jacobs High School building in Stevens Point, featuring murals, tiled mosaics, stained glass and an oak library (1938).

Maas Brothers thrived during the post-World War II construction boom. In the 1940s, Albert’s sons, Earl and Albert Jr., joined the family business. Together, they ran the company from 1949 until their retirement in 1990. During this time, Maas Brothers was involved with construction of Watertown Memorial Hospital, Marquardt Memorial Manor, Jefferson County Courthouse, Riverside Junior High in Watertown, and many more.

In 1990, Earl’s son, Robert Maas, took over management of the company. Operations expanded throughout the 1990s under Robert’s direction, with considerable contributions from Daniel Shea and Douglas Beilke, who are 2nd-generation members of the Maas Brothers team, and Kevin Kohlhoff. Clasen Quality Chocolate, Jones Dairy Farm, Watertown Regional Medical Center, Jefferson High School and Johnson Creek Schools are among our most notable modern-era projects.

Maas Brothers continues to grow and evolve in an ever-changing construction industry. Together our team brings decades of construction experience to the business. Thanks to our longstanding reputation for providing quality construction work, many long-term clients—including some dating back to the 1940s and 1950s—continue to choose Maas Brothers Construction.

Maas Brothers self-performs a variety of trade work, including rough and finish carpentry, concrete and selective demolition. Supplying our own trade professionals helps us control quality and timelines to deliver projects on schedule and within budget.

Over the years, Maas Brothers has developed a strong network of construction industry relationships, including architects, engineers, vendors and subcontractors. These connections lead to better value engineering, lower subcontractor and vendor pricing, and maximum efficiency on projects of all types and sizes.

Al Maas, Sr.

Albert Maas, Sr.

Earl Maas

Al Maas, Jr.

Albert Maas, Jr.

100 Years of Getting the Job Done Right

Boots Not Briefcases

Our team has “field” experience across all positions. Our superintendents, estimators, and project managers aren’t “briefcase” managers, they are “field” experienced problem solvers who know what it takes to get the job done right.

We have our own crews of qualified tradespeople, carpenters, cement finishers, and laborers. We believe this is critical to helping us deliver a quality project in time and in budget. We are more responsive to a customer’s needs and changes because our team knows each other, works well together, is properly aligned to areas of their expertise, and naturally collaborates to achieve the best outcomes.

Our expertise in delivering on-site supervision is the key to a successful project. We know what quality work looks like and ensure our crews and construction partners live up to our high-standards of excellence.

We Live Where We Work

We are proud of the local communities we’ve helped build over the past 100 years. Our team members take their responsibilities seriously because they are often building projects their friends, neighbors, and family will work, learn, socialize, and worship in for many years to come.

Maas Bros. has never and will never provide a “tailgate” warranty…you know, the one that when the builder finishes the project and as their tailgates fade into the distance so does their customer support and responsiveness?

We have a 100 year reputation to uphold and we take that role very seriously. That’s why we partner with qualified sub-contractors in our local construction market. Not only do we bring those relationships to your project, we also hold them (and ourselves) accountable to the highest industry standards to ensure your job is done right.

Relationships: Measured in Decades NOT Dollars

We build relationships. A good relationship is based on trust. Our customers, sub-contractors, and employees know we do what we say we are going to do.

90% of our business comes from existing relationships we’ve built over the past 100 years. Our customers trust us and know we will show up, make their needs our priority, and do what it takes to get their job done right.

Customers often refer others in their network to us because they trust us to take care of their referrals as they themselves have been taken care of.

Yeah… We Can Build That

Big or small, simple or complex, renovation or new construction, Maas Bros. has had the privilege of building it all.

Our extremely low employee turnover combined with 100 years of “field” experience, has helped us gain expertise in a wide range of construction industry disciplines.

Regardless of the type of construction project, success comes from listening, asking questions, and understanding a customer’s vision.

We get your job done right because we listen, learn, and understand long before the first shovel of dirt is excavated.

Meet Our Team

Kevin Kohlhoff
Kevin KohlhoffPresident - Business Manager
Daniel Shea
Daniel SheaVice President - Project Manager
Douglas Beilke
Douglas BeilkeVice President - Project Manager
Tony Meyers
Tony MeyersVice President - Project Manager
Anthony Maas
Anthony MaasChairman
Mark Stafford
Mark StaffordProject Manager
Eric Graf
Eric GrafRisk Manager
Trevor Kearns
Trevor KearnsAssociate Project Manager
Kurt Altreuter
Kurt AltreuterProject Superintendent
Larry Berry
Larry BerryProject Superintendent
Kim Gretz
Kim GretzProject Superintendent
Matt Hollman
Matt HollmanProject Superintendent
Barth Liesener
Barth LiesenerProject Superintendent
Jack Weihert
Jack WeihertProject Superintendent
Aaron Zellmer
Aaron ZellmerProject Superintendent
Mike Redfield
Mike RedfieldProject Superintendent
Richard Pankow
Richard PankowProject Superintendent
Nate Salas
Nate SalasChief Development Officer

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