Business Details
50+ Years
experience
Trusted Commercial Cleaning Services in Detroit
Giant Janitorial has been a trusted leader in commercial cleaning services for over 50 years. Founded by Laura and Pete Huthwaite, our company began as a small family operation and has grown to manage over four million square feet of commercial space nightly. With a team of 100 dedicated employees, we combine decades of experience with rigorous training programs to deliver consistent, high-quality service. Our bonding capacity of $10 million underscores our commitment to reliability and client confidence. We specialize in tailored cleaning solutions for facilities of all sizes, including carpet cleaning, window and glass maintenance, floor care, and construction cleanup. Our reputation as one of Michigan's oldest Women Business Enterprises reflects our unwavering focus on excellence and personalized client relationships.We prioritize quality assurance through direct managerial oversight and continuous staff development. Whether managing routine maintenance or emergency flood cleanup, our goal remains to exceed client expectations while maintaining competitive pricing. Our history of serving diverse industries demonstrates our adaptability and deep understanding of commercial cleaning needs. By focusing on efficiency and accountability, we ensure every client receives the highest standard of service, making Giant Janitorial the preferred choice for businesses across the state.
Services
Commercial Cleaning
Carpet Cleaning
Window & Glass Cleaning
Floor Maintenance
Construction Cleanup
Pressure Washing
Event Services
Supply Management
Details
- Year established: 1973
Highlights and features
- We have over 50 years of experience in commercial cleaning services.
- Our team consists of 100 trained professionals with direct managerial oversight.
- We offer customized cleaning solutions for facilities of all sizes.
- Our $10 million bonding capacity ensures client confidence and reliability.
- We maintain direct client communication and personalized service approaches.
Services
Commercial Cleaning
Giant Janitorial provides comprehensive commercial cleaning services for offices, retail spaces, and industrial facilities. Our trained staff handles daily maintenance, restroom sanitation, and dusting of all surfaces. We customize cleaning schedules to meet specific client needs while maintaining consistent quality through direct supervision.
Carpet Cleaning
Our carpet cleaning service includes deep extraction, spot removal, and protective treatments for commercial spaces. Using professional-grade equipment, we restore carpets to like-new condition while minimizing disruption to business operations. Regular maintenance extends carpet lifespan and improves indoor air quality for facility occupants.
Construction Cleanup
We specialize in thorough post-construction cleaning for new buildings or renovation projects. Our team removes debris, dusts all surfaces, and performs final sanitation to prepare spaces for occupancy. This includes window cleaning, floor polishing, and removal of construction-related residues from all surfaces.
Floor Maintenance
Our floor maintenance services include stripping, waxing, buffing, and protective coating for hard surface floors. We use commercial-grade equipment to maintain shine and durability while ensuring safe, non-slip surfaces. Regular maintenance programs help preserve flooring investments in high-traffic commercial environments.
Pressure Washing
Giant Janitorial offers pressure washing services for building exteriors, parking lots, and sidewalks. Our high-powered cleaning removes dirt buildup, graffiti, and weathering to enhance property appearance. This service helps maintain professional curb appeal while preventing long-term surface damage from contaminants.
People
Laura Huthwaite
CEO
Laura Huthwaite co-founded Giant Janitorial over 50 years ago and continues to lead as CEO. With a strong work ethic learned from her immigrant father, she oversees daily operations and client relationships while maintaining hands-on involvement in business growth.
Questions
What types of commercial facilities do you service?
We service offices, retail spaces, industrial facilities, and special event venues across Michigan, handling projects of all sizes.
Do you offer customized cleaning plans?
Yes, we create tailored cleaning schedules and service packages based on facility size, industry requirements, and client preferences.
Are your cleaning staff trained and supervised?
All staff undergo comprehensive training and work under direct managerial supervision to ensure consistent service quality.
What sets Giant Janitorial apart from competitors?
Our 50+ years of experience, $10 million bonding capacity, and direct owner involvement provide unmatched reliability and personalized service.
Do you handle emergency cleaning situations?
We can accommodate urgent requests for flood cleanup and special projects, though regular services follow scheduled appointments.
How are service prices determined?
Pricing depends on facility square footage, required services, and frequency. We provide free estimates for customized solutions.
