I used to barter computer repairs for free treatment from my chiropractor. Her computer was in much better shape than my spine, though, so I ended up writing her a number of checks over the years.

An informal market for the barter of expertise is very common in my social circle. I've obtained free medical advice, extremely valuable legal assistance, mechanical expertise, and the names of reliable contractors. In exchange I've provided advice for preparing for emergencies, plumbing, electrical wiring, and other things.

To get back to the OP, if you have an established web of friendship and social obligation it will be much easier for you to get what you need via barter, and barter of expertise can be very valuable.