Specialties
Since our inception in 1989, it has been the goal of Tenacious Cleaning Services NOT to become a large multinational conglomerate. Instead, our vision has always been to become the standard of excellence in the facilities management market locally. It is this focus on our local long-term clientele that has enabled Tenacious to become the industry leader in Maintenance Management in Northern Illinois. Let us proudly put our skills and experience to work for you.