First off, I have no problems with their work performed, it's great and I would have continued using them for my rental properties; however I do wish the pricing was more clear and communicated effectively.I had a water heater installed on a rental property of mine which came with a warranty. So when the tenants called with issues with no hot water in the home, I called Hexagon back out to check the water heater since they provided a warranty on it. Unfortunately, the issue was with the gas line so no work was performed.Now, on previous calls for other work to be done and estimates, I had been charged roughly $100, with the amount to go towards any work performed. This time I was sent an invoice for $165, $150 for coming out and $15 for parts.If I had known that to call them out to check on a warrantied item would have cost me $165 I would not have called them back out. They do not have a standard pricing guide and refuse to provide one. I wish someone would have at least mentioned to me what their call out fees would be or how they would be charged based on the outcomes of the heater assessment. It makes no sense to me that the charge is only $100 for someone to come out and assess and provide a quote for work to be done, but $165 for someone to come out and assess a warrantied item.Again, no problems with their work and I would have continued using them had I not felt uncomfortable with the way pricing and communication is handled.