Young Sacramento Roofing Estimator Earns Respect Through Professionalism

Bradley Rathjen, 23, secures millions in work in first year through dedication and digital skills.

Mar. 3, 2026 at 3:23am

Got story updates? Submit your updates here. ›

At just 23 years old, Bradley Rathjen has already made a name for himself as an estimator and project manager at Madsen Roofing & Waterproofing in Sacramento, California. Despite being underestimated due to his young age, Rathjen has turned his youth into a competitive advantage by pairing energy and adaptability with an unwavering commitment to professionalism, earning the respect of owners, manufacturers, and consultants alike.

Why it matters

Rathjen's story highlights how younger professionals can succeed in the roofing industry by embracing digital tools and holding themselves to the highest standards, even when faced with doubts about their abilities due to their age. His experience also underscores the value of hands-on field experience and the importance of building a strong local reputation in the roofing business.

The details

Rathjen began his roofing career in 2020 after graduating high school, spending three years working in the field with various roof systems before transitioning into an estimator and project manager role at Madsen Roofing & Waterproofing. In his first year in the office, he helped secure several million dollars in work, not by taking shortcuts, but by demonstrating professionalism, attention to detail, and a deep understanding of roofing systems.

  • Rathjen began his roofing career in the summer of 2020 after graduating high school.
  • He spent approximately three years working in the field before transitioning into an estimator and project manager role at Madsen Roofing & Waterproofing.
  • Rathjen has now been an estimator and project manager at Madsen Roofing & Waterproofing for one year.

The players

Bradley Rathjen

A 23-year-old estimator and project manager at Madsen Roofing & Waterproofing in Sacramento, California, who has turned his youth into a competitive advantage through professionalism and digital skills.

Madsen Roofing & Waterproofing, Inc.

A roofing contractor based in Sacramento, California, that has built a strong local reputation over the past 39 years for its competence, skill, and reliability.

Got photos? Submit your photos here. ›

What they’re saying

“I've found it challenging to be taken seriously due to my age, which has pushed me to hold myself to a higher standard.”

— Bradley Rathjen, Estimator/Project Manager

“Growing up in the technology age, I've been able to quickly learn and effectively use estimating software, digital takeoffs, and submittal processes.”

— Bradley Rathjen, Estimator/Project Manager

What’s next

Rathjen plans to continue building his reputation and expertise in the roofing industry, with the goal of becoming a respected professional in the field.

The takeaway

Rathjen's story demonstrates how younger professionals can succeed in the roofing industry by embracing digital tools, maintaining a high level of professionalism, and leveraging their energy and adaptability to overcome doubts about their abilities due to their age.