I want to have 6 recesssed lights installed in a living room ceiling. In some areas of the house I experience slight brown outing. (150 amp service, turn a hair dryer on, the lights dim for a second. So when the installer told me he would tap the hall light for the 3 hot wire, I told him I didn't want that, and I wanted the lights on its on line and circuit. There is walkable attic space above and a chase down to the basement where the breaker is. Its isn't hard to do.

I don't want to do something that contributes to browning. I also run into issues with the breakers. In the kitchen, every plug and light is on its own breaker. Yet everything in the living room, plugs and lights are on the same breaker. To me its conveniece to be able to shut a breaker off to change plugs and still have light without running a 50 foot exension cord through the house.

I am told this is overkill for 6 lights, but as I see it, if I am willing to pay $50 for 30 feet of romex, why not.

What would an expert do?

Its not about the wire, its about the labor of getting the cable from the panel to the attic. If you have a chase it should not be that difficult.
Fifty dollars should get you a 250' role of 14/2. If you are willing to pay for the labor, have it your way. That's also the I would want it.
With a 150 amp service you should not be having brown outs from a hair dryer, you must have a bad connection in that circuit.

Golden Rule: "He who has the gold makes the rules"

Thanks for the info. Running the line shouldn't be a problem. I offered to feed it through the attic down the chase if it helped. Not sure why this was a problem for the guy.

I am not sure at certain times certain things brown. There is GFI circuit in the bathroom. It is over the kitchen with 4 GFI circuits. Wacky way to have wired it if you ask me. But am not an expert.

If you are willing to pull the wire to the panel why don't you just do the job yourself. It ain't that hard. Only other questionable part is getting a wire down the wall to where you want the switch.
While you are at it, you could pull a 12-2 cable to the attic and come down the wall to the bath and put the bath on a separate circuit like it should be.

I notice that you said installer, not electrician. Is the guy an electrician?

Poor choice of words on my part. To me, running a wire to the area, down the chase and to the breaker box is easy and hassle free. Cutting 6 even circles and setting cans in the ceiling and wiring them and having them not look like I did it is more of a challenge for me! For me it is worth paying someone who can do it faster and better than I can.

The person I will probably use is in fact a licensed electrician.

This person will not be back filling insulation. I assume that with IC cans, I will be safe laying the owens corning unfaced R-30 stuff that comes in the pink perforated sleeves over them. I plan to cut a circle in layer 1 so there isn't too much weight pushing down on the can, then roll the second layer over so I don't lose my heat through the lights.

You have a idea with the bathroom. It would be really easy to run a single line up there. The electrician told me he doesn't hook up any lines to a breaker he didn't run himself. I get a little shaky hand dealing a breaker box. I don't to get fried.

I think you need another electrician. He doesn't want to run the line and doesn't want to connect any one he doesn't pull. Sounds like he wants to do it the easy way and collect big bucks at the same time. As far as cutting the holes in the ceiling, that's a piece of cake. Your light fixtures will probably come with a paper template with you can use to draw a circle, cut out with a key hole or drywall saw. Doesn't have to be absolutely perfect, just don't make to big. Lights have a trim piece that covers the edge.