Denver Dumpster Rental Is Waiting to Remove Your Waste! When you need to contact us or begin your dumpster rental process, we have our customer service reps awaiting your phone call from, Monday through Friday. All it takes is a phone call to get everything underway and for you to have a roll off dumpster placed in the next few days. Start your cleanup with us! Give us a call today, 303-945-3278!