Q: How's the biz model work?
A: I walk a grid twice a week, street by street. At the beginning it takes longer, but once it's cleaned up, then it's just maintenance. Basically, I remove graffiti in the business district - street signs, poles, lampposts, mailboxes and storefronts.
Q: How big a problem is this?
A: It's so pervasive, people think it's just part of urban living. I also do acid-etch repair. Vandals use it to burn glass. It's all over the city, and it's a shame.
Q: Who are your customers?
A: Three civic associations, Pennsylvania Hospital, Review Publishing and an area of 70 square blocks in the southeast quadrant of Center City.
Q: What do services cost?
A: $400 to $2,200 a month, depending on difficulty, how clean they want it and the size of the area. I dedicate six hours per week to South Street/Headhouse, about five to Society Hill and four to Washington Square West.
Q: And acid-etch repair?
A: $200 to $400 per window, two to three hours, very labor-intensive. I do this about eight to 10 hours a week.
Q: Anything else you do?
A: Removing spray paint from brick surfaces or masonry. Pennsylvania Hospital and Philadelphia Community College have had problems with this. I have a pressure washer, and this part of the business comprises another six to eight hours per week.
Q: How many employees?
A: Just me, but when I have a lot of clients at once, I bring on independent contractors.
Q: How big a business is this?
A: About $3,000 to $6,000 a month.
Q: What's next?
A: I want to expand the business to other neighborhoods, like Queen Village and South Passyunk. The city is the only competition, and they do graffiti removal to homes and businesses. My clients want it done right away, and so I fill in the gap. I'd just love to see Philadelphia cleaned up.
On Twitter: @MHinkelman