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 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

I can't say enough about Competitive Heating and Air Conditioning in Waterford,wi. They understood…read moreour urgency for furnaces in our rental property when we called them on a Friday. They had them installed that following Monday. Great customer service and very reasonable. I highly recommend them.

We had Competitive Heating come out to our home for service and they were A plus on their work…read more -on time -polite - informative - had parts they needed -went out of their way to help us -and most important, honest Prior to this visit we had them put in an air conditioning unit and the result of that visit was exactly the same as noted above. Why can't all businesses be run like Competitive Heating , putting the customer first. We would recommend them to anyone.

I was really happy with the service I received from H J Faust. When our heating went out on a…read morefreezing day, they had a worker out at our house a few hours later. Colin figured out what was wrong and fixed it all in the span of a few hours. Really grateful with how fast they were on a cold winter day, and everyone I spoke with was helpful and very friendly. Will definitely use and recommend their services in the future!

Great communication regarding service appointment. On time, as scheduled. Colin was great. Ask me…read moreif I had any questions, and brought things to my attention.

In need of a water heater, with a unique need, I began calling plumbers. Steve at USA HC&P…read morediscussed my application, made a suggestion and asked for some more information from me. I provided the requested data and scheduled an installation date. Mike just left after couple of hours. He did a professional, excellent installation for me that is also cosmetically appealing even though it's under the basement steps and won't be seen by anyone but me. Mike also cleaned up the work area and took all the debris. The price was more that fair and very competitive. By the way, Mike is a very personable guy and was a pleasure to have working for me! I cannot speak for the HVAC since I haven't utilized that service - yet - but if I must, based on my experience today, USA will be my Go-To contractor. If you need plumbing, USA is a sure-fire solution!

I called USA Heating to do an A/C inspection and tune-up. The service technician (Kevin P.) arrived…read moreon time. He was very courteous and efficient. No sales pitch for a service contract or lecture about needing yearly check-ups as another company I had used previously does. I will have them back this fall to check my furnace.

Shane Peck came to our home today and checked out the air conditioner for the coming season…read more Everything was O. K. and he was very helpful, turning on the outside water for the season, something I cannot do these days. We were charged $101.66 for the service which was fine with us. We have had Shane as our service person a few times now, so we had a good visit again. Ron F.

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?).

5 star - came out same day. did a couple additional maintenance items at the end which was nice cuz…read morewe were already paying for the full hour of labor. Showed me how to properly adjust settings on water softener as well.

They are always able to come and fix our furnace if we have issues. Usually less than four or five…read morehours to arrive, even in midwinter. Great service, friendly and fairly priced.