Just make sure you are in attendance at the install - otherwise anything can (and does) happen.
What you might consider is installing some inconspicuous conduit tubing along the route you want the cable to take from the Tee (or another property?) to where you omnibox will be connected.
Then install a pull rope (some strong string) inside the tobing so they can pull the cable through your tube.
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John
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I do not work for VM. My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired, 1 WiFi, 1 on PA) Hub5 in modem mode with Apple Airport Extreme Router +2 Airport Express's. On 250Mbps, Talk Anytime Phone, x2 Mobile SIM only iPhones.