I used Cordia for a very clogged main stack problem and was not only pleased but thrilled with the service I received. The guys were friendly and courteous, cleaned up after themselves and worked fast! We did have to have them back out the next day because the problem returned, but they were able to get out before noon and rectify the problem with no additional cost to us. This is all at the total cost of 130 dollars. Unbelievable! I would definitely recommend Cordia to anyone needing reliable and affordable plumbing services!