It's possible, but it just isn't likely, or at least not likely enough to be worth it for me.

Businesses knocking on your door like this are either new and trying to establish a clientele, or not very good and therefore don't receive repeat business and need to constantly find new clients.

Local, established professional businesses that do good work will likely have contracts with local businesses and generate more from word of mouth and likely don't need to go door to door coming up with lies "we were just working on your neighbor's yard over there..." and "discounts" to manipulate you.

If you wanna roll the dice and find out if it's a new guy that does quality work or a shady business that does bad work, more power to you, it's your property. I'll skip the jerking around and hire an established professional business with good reviews that I went and sought out. Just keeps things simple.