Best Air Conditioning A C in Saint Louis MO

The project manager at Dunn was nice enough to meet me at McDonalds to finalize paperwork on rebates for my new HVAC system. Full instsll of furnace and AC and now my two story home went from a ten degree temperature difference between rooms to around 1 degree temperature diff. Highly suggest calling Dunn to fix the hardest of problems other HVAC companies miss!!! We could not be more happy

Best hitting cooling and plumbing company I recommend to everybody

Very professional, helpful and excellent job!!! Mark and Dillon were extremely hard working, finished very quickly and cleaned the area nicely before leaving. We have using Performance Plumbing for 15 years and have never had a bad experience with them i rate them a #10!!!

I purchased a very expensive boiler (20k) last winter for them for our radiator heat.  They came to try to fix the old unit and said that our only option was a new one.  After some debate, we moved forward.  The installation itself was OK.  They left the basement door open for most of the time, and I had to ask them several times to close it because we were freezing.  I tried to ask them how it was going while they installed it, and they would barely respond.  Given the cost, I don't think this was unreasonable.  After the install, it stopped working completely after about 7 days.  I was pretty upset. They sent out a technician off hours who had no idea how to fix it. It turns out that the reason it stopped working was because the exhaust valve was installed incorrectly.  Apparently, it wasn't windy the day of the install, but there was more wind later on, so it needed to be installed differently.  Yikes. It works well now in terms of heating up the home.  I will say that the cost savings from this unit were not at all what they told us. The salesman made all sorts of claims about all the money we would save to run the unit.  All of that wasn't true.  It is cheaper to run our forced air units (although the radiator heat is much better; it heats evenly, there is no dust blowing around, etc.). We do love the radiator heat, but it isn't cheaper.  Maybe it is cheaper than a 50-year-old boiler, but he knew that wasn't our situation.  We weren't using the radiator heat at that time, which is why they were there in the first place.  All of this was really disappointing, but today, after switching back from Hoffman, I had someone out for a separate issue, and he was asking me about the unit.  Apparently, we could have gotten a similar unit and used it for our hot water as well.  He said it would have been another ~$1,000 (compared to getting a new $3000 water heater).  I remember the salesperson mentioning that as an option very briefly, and I expressed some interest.  I don't really know what happened in that particular part of the discussion after that, but at the very least I didn't understand the options, because it appears like it would have been a no-brainer based on what I am hearing today.  I have no idea what to believe on this particular issue, but it just added to my overall disappointment about the experience, which is why I am writing this review.

The ratings are probably phony, this company can not even return a phone call in the time they say they will. Do not trust the reviews I feel they are friends and family giving the ratings. Good businesses return phone calls in a timely manner !!! This is becoming a common practice among businesses. Must not need the work or they can not do it@!

Mike is prompt, courteous, efficient, and friendly. My husband and I are confident that he is a very reliable service technician. He has serviced our furnace and air conditioner in the past. Always we find him trustworthy.

Scott is very professional and knowledgeable in has water heaters. The education he provided was top notch and he didn't mind thoroughly explaining how things worked and why mine wasn't working. Scott is very patient and very thorough with his inspections and made every effort to ensure mine and my family's safety.