Can you use roadside assistance at your house?

IF you are asking about a specific Roadside Service Coverage - you will need to contact your Insurance or Roadside Assistance company to see what is covered.  If you do not have towing coverage - You will need to pay at the time of the tow.  Towing companies will come to whatever address you need in order to tow your vehicle to a mechanic or other location.  Your mechanic may have a reduced-rate contract with a Tow operator as well.  So call your mechanic before you pay out of pocket for that tow.  

Yes you can. It doesn't matter if you are on the road or at your home, roadside assistance is available wherever you need it.