Whether you own a multi-unit apartment complex or a small office building, having a reliable plumbing team on call is essential. And in Oklahoma, plumbing problems can appear out of the blue – leaving you with an overflowing toilet or a burst pipe in the middle of a heat wave.

Just like with any other contractor you hire, taking your time to find a plumbing professional who meets your specific needs will pay off in the long run. Here are six mistakes to avoid when it comes to hiring a commercial property plumbing professional.