Co-Founder

John Esler is a lifelong entrepreneur who believes doing the right thing, over the long run, is almost always the most profitable thing.

John’s interest in business began as a child when he sold souvenirs at the Saratoga Springs horse racetrack. His entrepreneurial spirit continued into adulthood when he founded and served as the CEO of Esler Companies. Esler Companies is the largest affiliate of Renewal by Andersen, the nation’s premier replacement window and door brand. Esler Companies employs over 3800 teammates across 12 states.

While leading Esler Companies, John structured the organization around its core value of love. John modeled the business culture in service first to teammates, second to customers, and third to the community. He is especially proud of establishing the organization’s philanthropic arm, Window of Giving, which enables team members to give back to those in need within the communities where they live and do business.

Since retiring from Esler Companies, John and his wife Jeanne established the Esler Family Foundation. John’s entrepreneurial spirit now flourishes in mentoring roles and board leadership, where he guides and inspires the next generation of changemakers, reflecting his core values of integrity, community service, and long-term profitability through ethical practices.

John obtained a Bachelor’s Degree from State University of New York at Albany, an MBA from Babson College, and an Advanced Leadership Initiative certificate from Harvard University in 2021.