Sewer and Drain Services Sewer and drain cleaning is a job that requires a professional. There are times where it can start out as a small inconvenience – first you may notice that water runs away slowly from the drain. This is the time to call Cawley Plumbing and Heating to arrange for a visit from one of our drain specialists. Once the drain becomes completely clogged you will likely be faced with standing water in the tub, shower or sink. Clogged drains can quickly develop into a real plumbing emergency. Contact Cawley Plumbing and Heating to get the problem resolved before it progresses. If you are already faced with overflowing drains or flooding in your home our professional plumbers are on call to help with emergency issues.