Our Management Team

John Martindale
John MartindaleCEO
John Martindale, CEO of Brothers Services, began his construction career as a high school student in Houston, Texas in the 1970’s, working summer construction jobs. During the first half of the 1980’s John worked as a project manager for an Austin, Texas remodeling company. John joined Brothers Services in 1986 and ascended to the presidency of the Company in 1995. Through John’s vision and hard work, the Company was transformed from a small roofing company to one of Maryland’s most well respected construction and remodeling companies. Decades later, John maintains his passion for construction, but now has the privilege of combining that with his love of nurturing and building an organization that is able to consistently deliver on the foundational premises on which the business was founded.

“At Brothers Services we follow our Golden Rule: We treat all customers as if they were our own family, and we treat each project as if it were our own. That is The Brothers Way.”

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Steve Zwagil
Steve ZwagilPresident and CFO
As president, Steve Zwagil oversees all operations and financial management of Brothers Services. Steve was a fellow alum with John Martindale, obtaining his MBA at Loyola, and while working together on a project, found they had similar character values and vision for excellence in business, though from different faiths as their foundation. They quickly found a sense of brotherhood, and John was able to eventually persuade Steve to bring his considerable management savvy to help Brothers Services grow healthily and with a long term perspective. As a licensed CPA, and former CFO of successful growth companies, including mortgage, IT, staffing and CPA firms, Steve is a stabilizing influence grounded in good business.

“The Brothers Way describes what we do, day in and day out, to create a predictable, positive experience for our customers, characterized by five attributes: Fairness, Attentiveness, Innovation, Trust and High Standards. For over 30 years, we have served our customers with these attributes as the cornerstone of who we strive to be.”

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Dave MacLean
Senior Vice President
Mike Aellio
Mike Aiello
President – Remodeling Division
Marc Johnston
Marc Johnston
Senior Vice President – Building Development
Kevin McMonigle
Kevin McMonigle
Treasurer
Sharon Hamrick
Sharon Warner
Executive Assistant