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"Mazzant did a restoration job for me back in 2015. At first glance, it was great... but today, not so much. Here's the scenario: A water pipe in my unheated attic burst and flooded a couple rooms in my house. Mazzant came in, tore out the ceiling, dried everything out, etc. During that process, the existing furnace in the attic died and had to be replaced. Insurance paid for everything, job was done after 4 weeks or so. Life went on. Now in December 2018, I'm no longer living there but my tenants call me up and say the furnace won't run anymore. The gas stove works, water heater works, but not the furnace. I call my usual HVAC guy and he said the install was done very poorly. I told him what happened before, then I asked him why he thinks the install was done poorly and he tells me it looks like a drywall guy did it. Basically, the HVAC guy meant to say it looks like the person who did the install didn't have the expertise to do it right. I ask him what needed to be done and he said the best thing to do would be to get parts and redo the install which would be thousands of dollars. I asked him what it'd cost to simply get the one part needed to make the furnace work and he said it's $500 but would rather not do a rush job. Fair enough. I go for a second opinion and same thing. The guy tells me the install was done improperly so the drainage doesn't happen properly, which causes condensation in the unit, which caused the control board to go bad, and that's why the furnace won't run. I ask him what could be done and he tells me my two options: 1) Replace just the control board for $500 but the part is on order which will take 14 days to arrive, not to mention an additional wait time for actual repairs. 2) Replace the whole thing for $4,200 and can be done in 3 days. Alternatively, he told me to find the original crew that did the work and see if there's any parts warranty on the unit. However, he felt it was unlikely because to have parts warranty, the technician would've had to register the furnace with the manufacturer... and he honestly felt that, "Anyone who does a job like this probably wouldn't have done so." I take his advice to contact the original crew and find out if there's any parts warranty. The original crew was Mazzant. I called them and basically, they're saying it's been 3 years since and there should've been regular maintenance on the furnace. And because there's been no maintenance, they won't do anything about it. In fact, Bob (the owner/president) yelled at me when I tried to explain 1) I don't recall having this conversation because I was under the impression that the insurance company was paying for everything, and 2) I was simply trying to look for the parts warranty. What's amusing is that he became very defensive because I hadn't even gotten to the point of asking them to do anything about the botched furnace install, one that's now going to cost me at least $500 and leaving my tenants in the cold for at least 2 more weeks because the parts are on order from the manufacturer! I told Bob Mazzant this: If he had AT THE VERY LEAST sent someone out to check it out and explained better options to me, I might've even hired him again to fix it for me. But instead, here I am on the Internet writing a bad review because he chose to get defensive and yell at me over the phone. He sounded nice enough to a potential customer, but boy try asking him about a past job and he blows up. That reaction tells me that I'm not the first one that's told him of botched jobs his crew did that became ticking time bombs... and I suspect that I won't be the last customer that he'll be yelling at in the future. Thanks for nothing, Bob."