In all cases, we offer a full guarantee for our work! Yes, it can happen that a job is not completely successful with us, we accept this even after weeks, and we will get out as soon as possible and then correct the error! In most such cases, we make a decision based on a camera inspection, if the blockage is not caused by a foreign object or the condition of the drain. The repeated blockage In this case, the work is completely free of charge!