About Alliance Building Services

Founded in 2006 in Bellevue, Washington, Alliance Building Services was created with a clear vision: to deliver exceptional quality and value through reliable, professional building maintenance. What began as a simple idea—quality service at a fair price—has grown into a proven formula for success.

Today, our senior management team proudly serves more than 250 accounts throughout the region, spanning commercial office buildings, high-tech campuses, industrial facilities, medical centers, and retail environments.

As a full-service maintenance company, we provide our clients with the convenience of a single, trusted source for all their building care needs. Our services include janitorial maintenance, window cleaning, carpet and upholstery care, pressure washing, lighting maintenance, building restoration, and grounds care. Each division is staffed by experienced specialists who bring professionalism, consistency, and attention to detail to every job.

At Alliance, we believe in building partnerships—not just service contracts. Our management team works closely with clients to design custom maintenance programs that meet the unique needs of each property. With open communication, proactive problem-solving, and the flexibility to adapt to changing requirements, we ensure your facility always looks its best.

Our mission is simple: to help our clients enhance and maintain their building’s image—attracting new tenants, retaining existing ones, and creating a clean, welcoming environment for all who enter. Through dedication, innovation, and proven results, Alliance Building Services has earned a reputation for excellence that continues to grow year after year.