About 1901
Doing the Job Right, the First Time
1901 Inc. designs, builds, installs and services Heating, Ventilation and Air Conditioning (HVAC), Electrical and Plumbing systems for commercial, industrial and residential applications. Since our inception, over 100 years ago in 1901, we have built a solid reputation on doing the job right, the first time.
Cutting Edge Technology
The latest computer estimating, job costing, scheduling and drafting systems ensure that we utilize every possible cost-saving measure and maximize the efficiency of our process and the systems we install. 3D drafting of mechanical systems, sending and receiving drawings and specs via email and staff dedicated to producing up-to-date O & M manuals make it possible for 1901 to keep all stakeholders well informed during planning and production phases.
Our Leadership

PAUL CHRISTENSEN
Owner / CEO / Project Executive
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As owner and CEO, Paul oversees all operations at 1901 Inc. Paul has over 20 years’ experience in Mechanical Contracting and is a steamfitter by trade. Paul has worked hard to improve quality control within the company while also improving efficiency and productivity throughout both the field and the office.
Paul is actively the President of Madison Area Mechanical & Sheet Metal Contractors Assoc., Vice President of Madison Association of Plumbing Contractors, Vice President of Mechanical Contractors Assoc. Of America, WI Chapter, Secretary/Treasurer of the National Certified Pipe Welding Bureau, Madison Big Step Steering Committee, Kids Building Wisconsin and the State of Wisconsin Apprenticeship Leaders Board of Directors
“Dedication and commitment to quality, value and safety is vital to our success. Our customers rely on our expertise in design and construction to provide them with safe, reliable, and efficient mechanical systems. Our goal is to be quality, cost and safety conscious at all times and we recognize that our customers are the most valuable and important assets we have.”

Mike Christensen
President / Emeritus
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BRADY FARRELL
President
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Among his many accomplishments, Brady led a project for a nonprofit that achieved the highest point total record with the leadership in Energy and Environmental Design (LEED) rating system. The Aldo Leopold foundation has the first “net zero energy” building in Wisconsin, and the first carbon-neutral building certified by LEED. Currently, Brady is leading 1901 into the virtual world of BIM construction and prefabrication.
As President of 1901, Brady oversees all operations of the company, which includes Project Management, Estimating, Engineering, AutoCAD design, Service Department, Sheet Metal and Pipefitting Fabrication facilities.
“1901 strives to be the best at serving our customers in all aspects of their mechanical and plumbing construction needs. We make every effort to be deserving of your confidence and high expectations. 1901 takes pride in completing high-quality projects on time and under budget.”
High Quality Systems
We combine an old-fashioned devotion to good business practices, superior materials, quality workmanship and a youthful approach to conserving energy, cutting costs and improving efficiency. We take pride every day in completing high-quality projects on time and under budget. One hundred years of service has taught us that we can’t do work that withstands the test of time unless we use materials that will too. Our on-site fabrication and manufacturing facilities are the finest in the industry, helping us keep up with the material demands of any size project while controlling quality and costs.
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Quality Workmanship
As a union contractor, we have ongoing labor agreements with the steamfitters, plumbers, and sheet metal workers. These unions give us the manpower and training we need to provide staffing for projects of all sizes while providing world-class quality. We’re proud to currently employ 180 people and are projected to produce over $40+ million in annual sales.
Good Business Starts With Great People
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