Do Not use their service. They have a rental truck from Enterprise. If you get two middle eastern, they are lazy and worthless. They stuck a machine in the vent for less then 10min with the vent closed. Also left dirt all over the place. they brought a mini shop vac to clean out the dryer vent. Stay away from this company. Your vent will not be cleaned at all. Their scam is just hook something up making you think that its doing something