Value Rooter was dispatched by my home warranty company to open a blocked drain from the kitchen sink. They failed miserably first claiming to have access the drain through the roof vent (at an additional charge) when this failed they said they believed there was a broken drainpipe in the foundation. At no time did they attempt to open the drain through the trap under the sink. Another company used a camera to check the main drainage line accessing it through the cleanout in the laundry room. The mainline was clear. This plumber then used an auger through the trap in the sink to clear the blockage. After this experience with Value Rooter I would not allow them to attempt to lime an outhouse.