I'm not sure and not my full time job but i've done plenty of jobs for small stores, houses warehouse and parking lots with no issues. but yet again, the most ive done other then minor drilling to hold the cable in place are 2 inch holes to get the cables coming from the outside cameras inside.
I have my own supplier but i've installed Lorex, Swann and Q-See with great results. Check Costco or Microcenter (although it might be cheaper, I myself would not recommend Winbook or Nighowl)
-Good Luck