Giovanny, Roberto and Edger worked for 2 days until they located the blockage. They were both kind and very attentive to this difficult problem. I would certainly have them work in my apartment if I needed plumbing work again. I cannot tell you how knowledgeable, patient and complete they were. If I were running a business these are the type of employees I would look for. They deserve all the praises I can give. They cleaned up after they completed the job. Finding the blockage was difficult but they persevered until the problem was located. I cannot say enough about the quality of their work. My advice is if you need plumbing work look no further they are the best.