JW
Jonathan Windler
Aug 5, 2026
Dauenhauer is really good with plumbing. They have replaced my water heater and sump pump, two separate calls. They were prompt, friendly, and reasonable. I called about the sump pump and they sent someone out at 11pm same day to replace it.
I do not recommend Dauenhauer for HVAC work. Avoid them. My AC went out sometime 2022, and I had them replace the whole system. Outside unit, copper lines, inside unit coils, the heating part of it, all of it. I had moved in a couple years before and I did not want to worry about the AC for a long time.
I'll give them credit, the heating has worked fine. The cooling aspect has not. By the time spring 2023 rolled around, I turned on the AC and it did not cool. The system was entirely empty. They sent someone out in April and filled it up. He claimed sometimes new systems are filled a little low.
Queue headache. A month later it's not cooling again. Over two weeks they came out 6 times? Some of those times were repeat technicians, with technicians giving different diagnosis on what the problem was. From what I remember pattern was technician came out, claimed previous tech was incorrect and problem was not x buy y, they could not fix it that trip, and would send someone out in a few days. This repeated for two weeks.
I increased my inside temp to 75, and over the course of 2023,24, and 25 I slowly noticed the AC was running more and more without cooling efficiently. Eventually it was running constantly. I try lowering the inside temperature and it will not go lower. 2025 I call them up, they send someone out. I think this is where they dye the system, and they could not find anything that trip. Fast forward to March 2026, they come out 2 times since the AC did not run much and the dye did not work its way through the system. The second time they said they did not see any visual leaks from the dye.
Two months later, May, guess what? It's not cooling effectively again. They send someone out, fill up the system, and says he can't find any leaks. Fast forward two more months, its not cooling effectively again.
I think every time they send someone out, they have had to fill up the AC system because it is low on coolant. There is a leak somewhere. They can't find it. And they are not attempting any remedy other than coming out, filling it back up, and shrugging their shoulders. This has been going on since they installed the system 4 years ago. This has been noticeably affecting my electric bill.
UPDATE: They finally found the issue. And they want to charge $1800 to fix it. This has been a problem since they installed the system. Dauenhauer will not stand by what they install.