About Gahanna Plumbing & Drain Gahanna Plumbing & Drain is a top-rated, local, family-owned plumbing contractor serving all of the Greater Columbus area and Central Ohio. We offer commercial and residential plumbing solutions you can afford in a timely manner. No job is too big or small and as the so-called #1 expert in the #2 business, your satisfaction as our customer is always 100% guaranteed. No matter what type of plumbing problems you encounter in your home or business, our team of professional plumbers at Gahanna Plumbing & Drain can offer you fast and affordable plumbing solutions that last.