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About

US

Founded in 1948, Allied Building Service (ABS) is a second-generation, family-owned company headquartered in Detroit, Michigan. We specialize in comprehensive facility maintenance, construction, and a wide range of specialized building services, including high-rise window washing, janitorial solutions, and electrical contracting. Our team proudly serves commercial and municipal clients throughout the Midwest and across the nation.

Through meticulous project management and tailored solutions, we’ve built a strong reputation for excellence in HVAC, carpentry, plumbing, electrical, docks and doors, and high-rise window cleaning. Our commitment to teamwork and adaptability ensures we meet the evolving needs of the industry.

In November 2025, Allied Building Service partnered with Continuum Services, a leading facility management provider headquartered in Farmington Hills, Michigan. Continuum delivers a comprehensive suite of solutions, including facility engineering and operations, energy management, mobile maintenance, and HVAC/refrigeration. Their offerings also include exterior solutions such as asphalt maintenance, snow removal and de-icing, and comprehensive landscape care. These functions integrate with our operations and reinforce our commitment to shared values.

This strategic partnership combines Allied’s expertise with Continuum’s established platforms; immediately expanding our reach and impact.

Together, we share our mission of growth and innovation, creating new opportunities for career advancement within the combined organization. Together, we are committed to serving the Detroit area - and beyond - for many years to come.

1801 Howard
Current HQ
Cass
Past HQ

OUR

CORE VALUES

RESPECT

RESPECT is the foundation of every strong relationship, both with our clients and our fellow employees. We demonstrate respect by listening actively, communicating with honesty and professionalism, valuing others’ time, and appreciating diverse perspectives. By treating clients and coworkers with courtesy, fairness, and empathy, we foster trust, strengthen collaboration, and create a positive environment that supports shared success and lasting partnerships.

INTEGRITY

INTEGRITY means doing the right thing, even when no one is watching. It is demonstrated through honesty, accountability, and consistency in our actions, words, and decisions. We show integrity by keeping our commitments, acting ethically, and taking responsibility for our work. Whether interacting with clients or fellow employees, integrity builds trust, strengthens relationships, and creates a culture of respect, reliability, and professionalism.

TEAMWORK

TEAMWORK is the ability to work together toward a common goal by supporting, encouraging, and respecting one another. Strong teamwork is built on open communication, trust, collaboration, and a shared commitment to success. By leveraging each team member’s unique strengths and experiences, we can solve challenges more effectively and achieve better results. Whether serving our clients or working alongside fellow employees, teamwork fosters a positive, productive environment where everyone contributes to shared success.

EXCELLENCE

EXCELLENCE is a commitment to consistently delivering the highest quality in everything we do. It means striving for continuous improvement, taking pride in our work, and exceeding expectations for our clients and fellow employees. Excellence is demonstrated through attention to detail, a strong work ethic, accountability, and a dedication to achieving outstanding results. By embracing excellence in our daily actions, we foster innovation, build trust, and contribute to the long-term success of our team, our clients, and our organization.

We aim to set new standards, creating workplaces that inspire and elevate, and businesses that lead with excellence and impact.

OUR

Mission

We are on a mission to own, operate and grow these businesses, and to have 1000 active team members. By having 1000 team members, our reach can be even greater in the world, as every team member has connections, relationships, families and communities they are part of, and having a better future for 1000 can multiply into a better future for thousands more.