Need professional to unblock kitchen drain urgently

Hi, I have a blocked kitchen sink that has been draining very slowly for a few days and now it's completely clogged. I need someone experienced to come and unblock the drain as soon as possible. Preferably someone who can also check if there are any underlying issues causing the blockage. I live in a small house in Dublin and would appreciate a quick and efficient service. Please bring any necessary tools and equipment. Thank you!