About Us

No facility is too large or small for Giant Janitorial.
We have qualified and trained individuals to handle any size job throughout the entire state.

A little background

Giant Janitorial Service, Inc. has been in business for over 50 years due to its long-lasting reputation as a quality service provider and providing exemplary service and personal attention to each and every one of its clients. Known in Michigan as one of the oldest Women Business Enterprises, Giant has a long history of exemplary service at competitive prices. Giant is known as one of the most reliable and quality efficient service providers throughout the state of Michigan. We are committed to quality and response, considering them our highest priorities. We know that you expect and require the highest standards of quality and efficiency in every aspect of your business, and we will do everything in our power to provide this to you.

More than 50 years ago...

Giant Janitorial Service, Inc. was founded in order to add income to a family struggling to make ends meet while one spouse went to school and the other cared for the family. Today, Giant Janitorial cleans more than FOUR million square feet on a nightly basis, delivering superior quality and service at all times. As CEO, Laura and Pete Huthwaite started Giant Janitorial and together today maintain its day-to-day operations with personal client interaction and direct supervision of employees at all of the job sites under contract with Giant. Known in the State of Michigan as one of the oldest Women Business Enterprises, Giant Janitorial has a long history of exemplary service at competitive prices. If you need your facility cleaned, no matter the size, Giant Janitorial is the most capable company to meet your needs.

  • We have cleaned over 100 MILLION square feet!
  • We have bonding capacities of up to 10 million dollars!
More than 50 years ago...
How Laura Huthwaite cleans up with Giant Janitorial Service
By Kathy Simmons – January 2006, Smart Business Detroit – “Women in Business” section.
"Laura Huthwaite doesn’t mind rolling up her sleeves and getting her hands dirty. As CEO of Giant Janitorial Service, she is actively involved with a staff of 100 employees who have been keeping commercial properties sparkling clean for more than 50 years.
The business started as a part-time job when Huthwaite was working for Merrill Lynch while her husband, now Giant Janitorial’s president, was in school. They needed extra income and found a way to make it by cleaning a small insurance office. The business quickly expanded, and Huthwaite decided to devote herself full time to managing its growth.
Huthwaite credits her father, an Italian immigrant, for her strong work ethic. He was a Detroit bus driver who came to the U.S. when he was 14 and supported his mother and two brothers for years, she says. Although I have met many admirable people in my business, my father instilled the qualities in me which have contributed to Giant’s success. Smart Business spoke with Huthwaite about how she finds great employees and how she balances quality and price at her business."

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