While it may seem like a simple task, there are several reasons to hire a professional San Diego drain cleaning company. You might notice an unsettling odor coming from your sink or toilet. This is a sign of active mold growing inside your pipes. It can also be a sign of biofilm that has built up on your drain. In order to avoid expensive repair bills, you should avoid using chemical drain cleaners. The best way to find a drain cleaning company in San Diego is to ask your plumber about the services they offer. Some plumbers will charge a flat fee, while others will offer discounts if you provide…