Nimmer has been very helpful and flexible with services, when my furnace blower was dying and with…read morereplacing the furnaces and ac's. The technicians have gone above and beyond, especially Pat and Josh. My house is crazy, and it presented problems that weren't expected, and they came up with solutions to those problems. They have been wonderful to deal with (office staff Malinda and Beth, and Brian who gave me a quote for new units as well as Pat and Josh). I highly recommend them.

Natalie Gentz came to do annual maintenance on our furnace. She came on time and worked quickly…read moreand efficiently. Highly recommend. Thank you!

I just really appreciated what seems like an honest assessment. I was looking for a second opinion,…read morebecause two other companies had recommended major, costly repairs or replacement for my gas furnace. The Grenz folks came, carefully looked at the unit, and said, "If it were my furnace, I wouldn't do anything. It is running the way it's supposed to." This second opinion cost me something, naturally, but it also saved me between $5,500 and $19,500 (two quotes from the other two companies). Jim seems like a straight shooter. I'd recommend you give these folks a try.

He called me back and talked me through the fix. He did not wait to come out and wouldn't take any…read morepayment for his assistance. He clearly knew what he was doing. He was able to talk me through several troubleshooting exercises without seeing the gas fireplace itself. If I have any HVAC or fireplace needs in the future, I will definitely use Grenz

Thielmann: I'll try to give a brief background. The furnace (unit also has AC component) in my…read morecondo was having white smoke/steam come out of the external vent during some of the extremely cold weather we were having. Even though my furnace was not making any unusual noises, smells, or setting off my carbon monoxide detector, I was still concerned as no other condos in my building or nearby buildings were having the smoke/steam. The employee that initially inspected by furnace (Carlos?) informed me that the heat exchange was clogged and would require me to repair the furnace or purchase a whole new unit (I opted for a whole new unit based on its age). Carlos gave me the impression there was no rush and that it was not something that necessarily needed to be done immediately. When the second employee (Dave?) came later that day to take measurements and verify the replacement unit needed, he made it seem almost emergent and began to wonder aloud if he needed to shut my furnace off that day. The stark contrast between the two was alarming and created a bit of a trust issue on who to believe. Carlos seemed a little green and Dave seemed like more of a veteran. Dave eventually determined it did not need to be shut off as no carbon monoxide was entering my condo. The whole experience did create a bit of a panic for me though, so I quickly accepted the only available appointment within the following two weeks. It was convenient that they could get it replaced just five days later, but if it truly wasn't an emergency then I would have liked a little more time to verify I was getting the best price as it wasn't cheap (to give you an idea this is the largest purchase I've ever made behind my home, education, and car). They do offer payment plans that were easy to enroll in, one of which has 0% interest if paid off within a year. I'm not trying to throw anyone under the bus, but I can tell they really want an honest review as I've received multiple texts and emails asking to leave one. The crew that showed up on the morning of 12/24 to install the new unit were quick and efficient. They were respectful of my property and explained the new thermostat to me. All the employees were friendly, including the ones running the office over the phone (Micah?).

Thanks to the flooding my hot water heater is shot! I called Thielmann (since they previously were…read moreRoss and that was the service I use to use) they came out to inspect my pilot light situation and unfortunately just the inch of water I had is the right amount needed to short circuit things. He also made sure to check out my furnace to ensure there weren't any issues with that - I knew the AC was working fine but he ran a service check on the heat as well. I am a little confused as to what's happening for the next appointment I've set up - is this to gain an estimate on a new heater or to actually install one which is the reasoning for 3 versus 4 star. Tried calling back to find out but couldn't get ahold of someone. I'd like to get a few quotes of course for something like that/have a discussion about the types of options for water heaters.

Very knowledgeable serviceman who answered all of our questions. Very professional yet with a…read morepersonal touch. Was truly interested in our specific concerns and questions. Did not take long to arrange an appointment. Offered suggestions on best way to set and regulate our furnace. After many years with another company that we've learned to distrust, a change was necessary and Donovan & Jorgensen definitely left us with a very good impression.

Just wanted a ballpark quote on my boiler that's working but acting up. To start they demand info…read morelike address and a phone number straight out the gate, I'm sure it's so they can harass me later with "do you still need" calls a week from now and when you give it you find out they charge $100 just for a diagnosis. Don't waist your time They clearly don't want the business.

I own barbiers Italian in South Milwaukee . Our AC in the bar Needed to be replaced we were in the…read moremiddle of a hot stretch he was very busy but quick to respond great equipment great service thanks Nick

From the owner: At Exceed Heating & Cooling our mission is to provide exceptional residential HVAC services with a…read morestrong focus on customer experience. We are dedicated to delivering high-quality solutions that ensure the comfort and satisfaction of our valued customers. Through our expertise, professionalism, and commitment to exceeding expectations, we strive to build long-lasting relationships and become the trusted HVAC partner for every homeowner we serve.

I have had 3 good visits from this company over the last year and a half. Last night Matt the owner…read morecame out and diagnosed an issue that was causing our heat to shut off on the coldest day of the year. I thought there was no way I would get anyone out on a holiday and freezing cold day. He made it out late In the afternoon and called me and told me me that he was not going to charge me because he thought maybe they could have caught the issue at our yearly check. He was so incredibly professional, and above and beyond helpful and kind. I went from starting the day feeling like we might have big issues on worst possible day, to having the most pleasant call confirming it was fixed at no charge and they appreciate our ongoing business. A truly great business and owner !

These 2 guys are the best! They're honest, they save u money every where that they can, but still…read moregive you better service than I've ever seen with any other business, PERIOD!! You will not be disappointed in any way with Matt & Mitch. They're honestly too good to be true! I can't believe that I'm this excited over hearing & A/C, but that is what a breath of fresh air these two are when you're going thru something not pleasant, like replacing your furnace!

We had Louie install a stainless-steel dog washing tub. He showed up when he promised and did a…read morefantastic job! The price was very reasonable, and we couldn't be happier with the results. If you are looking for a good plumber, Louie Fennig is who you should hire.

We had some plumbing work done and also bought an HVAC system from Fennig. Everything went as…read moreexpected and the work was excellent. We've had a couple of "emergencies" and Louie has always been very responsive. He explains the problem well and has even shown me how to fix it in the future. Definitely give Fennig a call.

Was wonderful until new ownership. They wouldn't honor the warranty for our furnace that we…read morepurchased from them due to ownership change. Had a quotes done that were way overpriced. Had another company come out and quote us to find out the quotes they gave us on our equipment didn't need repair at all. Very disappointing.

Justin the tech from 1st Choice was on time, courteous and professional. I have had him service my…read moreboiler for several years. I have a multi-level 1970s contemporary home with radiant heat. Not always the easiest to service when water lines are in the slab. He tested the system for leaks and provided an easy-to-read condition report after the service. Fair pricing as well.