I totally agree with the networking philosophy. I have 2 landscaping companies I refer a ton of work to and ask for nothing back. They in turn, refer tree jobs to me. It's great because we are just passing each other business. If you ask for money then the guys getting the job have to mark up their prices to pay you the extra finders fee. This makes them more expensive than they should be and that's no good for the client. Don't worry about not making a little extra, because its not the kind of work you do anyway. Why not do a favour for the landscaper? You have nothing to lose and lots to gain by the way of referals. If you get a kick back or sub-out the work, then you can become more involved in the work and may get dragged into the loop, so to speak.