Patios and Walkways only?

[GreenHor7]

Right now i own a lawn care business in Pa, but i have been doing some hardscaping and i enjoy it. Mostly patios and walkways. All of the customers have been pleased so far and some suggested about going into this end of the business. I was wondering if you guys think it is possible to do walkways, driveways, and patios only. Concrete, pavers, and bluestone would be the material used. I would probably maintain a few mowing accounts for cashflow purposes