Paid $320 to have their "expert" boiler technician come out to inspect and turn on the boiler. He spent 2 hours trying to get the thing running and couldn't. He convinced me I would need to replace the boiler. I asked him specifically if it could be the controller, which he adamently denied. He said that even if the controller was the issue, the new one I had picked up wouldn't work. He also ran a CO detection test, even though they unit wasn't running, which we got charged $42 for - complete waste. I went back the next day myself and swapped out the controller for a new one just in case that was part of the issue. That's all it took to get the boiler running fine. I fixed it in 30 minutes, and their expert couldn't figure out what was wrong with it after 2 hours, saying we needed to replace it - which they charged us $320 for. Complete waste. Will never use again. FYI - they charge $128/hour, including time to travel to the site, plus additional fees!