I have literally cleaned it all over my 16 years in business. Plus, I have learned from other cleaning company owners over the past 5 years. This includes large commercial janitorial companies. My experience in this industry thus ranges from the smallest house to the largest office complex. This knowledge has helped me so much in determining the niche of commercial cleaning I like most. It's small commercial. But what does that even mean? I explain this in detail in the attached video, but I'll briefly summarize here.
It has taken me 16 years to accumulate this knowledge. Please take it and make your business stronger!