Commercial plumbing requires more maintenance than a house. Since the former involves inspection on a larger scale, every business owner should find a reputable company to do the needful. Usually a homeowner calls up a plumbing company only when there's a breakdown. However, a commercial house cannot afford to stop functioning due to a plumbing problem. Therefore, servicing is required from time to time.

I think this is very important as no tenant like fixing toilet, personally I dislike it.