Thielmann's put in our furnace and air conditioner THIRTY years ago. Air died. They came out the…read moreday after I called. Representative was polite, knowledgeable, and efficient. In two days, we had a new furnace and air condition. Techs were great. Price reasonable. New management, but same great quality service.

Very prompt and professional ! I have recommended Thielmann for real estate transactions as well…read moreas my personal residence. My "go to" HVAC company for quality service !

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

Cardinal has been the BEST company I've experienced so far at my house. I've also used Action--they…read morewere terrible in comparison. 1st call to Cardinal was in a panic with the sudden loss of AC in a 90 degree day. 5 animals in the home. The person with whom I spoke understood how dangerous of a situation this was and a service person was scheduled that day. 2nd call was for electrical work--not urgent but they happened to be able to squeeze me in on the same day which was probably rare but amazing! Best parts of this experience: 1. Friendly and empathic front team who got me scheduled ASAP. 2. Text prior to the service person's arrival with their pic and some info to help personalize this 'stranger' 3. The service people themselves--extremely competent, focused, and very personable. I only wish they serviced commercial properties so I could have them out to my business!

Their quote was 2.5 times higher than two other local businesses!! Absurdly high! No way was the…read moreamount of work I was estimating worth the same às a slightly used car! $9k for what is probably 2-3h work is laughable!!! This makes me wonder what they are charging other people who haven't researched the things they want to the same degree I have. It's almost criminal. Their estimator was very pleasant, though. And their communication is quite good. Maybe that's where the extra $5k is required!!!.... Complete BS

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 used to love this company. We purchased a service contract with them because of their outstanding…read morecustomer service and the positive experiences we had with their technicians. Unfortunately, without any notification to existing customers, the company was sold to ABC Heating. I had a maintenance appointment scheduled months ago for today between 8:00 a.m. and 12:00 p.m. No one called or texted to let me know the technician was running late. When I called, I was met with an AI phone system. After repeatedly asking to speak with a real person, I finally reached someone, but she couldn't provide any information because dispatch wasn't responding to her either. As I write this, I'm still waiting for my technician to arrive. The excellent customer service was the main reason I chose this company and purchased a service contract. This experience has been extremely disappointing. At a minimum, current contract customers should have been notified that the company had been sold and reassured that service would continue without disruption. Based on this experience, I can no longer recommend this company.

Review for the electrical:…read more Hometown is not the least expensive. However, scheduling seemed to be fair easier with them than any other, and Shawn (the electrician that was dispatched) was a pleasure to work with, even trying to help troubleshoot a related situation (not specific to his work). Where can they improve? That's easy... 1. Clearly, you price based on the service as you should. Some tasks though should not warrant such a premium. Consider coming down about 20%. 2. The sales process - basically everything before getting an expert out - is not optimal if you're someone who knows what needs to get done and just needs "the smart one" to show up and do an assessment. There wasn't pressure; just needless extra steps. 3. I will have to make some adjustments due to observations after Shawn left; it's not his fault specifically, the home had some wonky wiring and the install had some very picky requirements where the use case is going to warrant some changes. Due to the high premium, I can't justify having him back out like I normally would. Ultimately, for electrical, do I recommend? Yes. I just think they have opportunities to improve.

Didn't get to use his services - his time frames did not work for my project... however his honesty…read moreand knowledge of information was outstanding. His ability to communicate honesty was very appreciated and should I work in the area again I would contact him first!

From the owner: 10+ years of experience in heating & cooling system repairs and installation for Residential,…read moreCommercial & Industrial.

We used to have a leaking fridge with a working ice maker, working fridge and working freezer…read more Now we have a scratched kitchen floor, a fridge that doesn't work, an ice maker that doesn't work and a freezer that barely works. When at our home Vinny apologized for setting the bottom drawer of the freezer on our new kitchen floors and then in an email requesting some type if reconciliation he became unprofessional. He was yelling at my husband about his own lack of preparation from the emailed communication with details of what was broken and then verbally attacked him. The lack of accountability and not showing up or responding when our fridge and freezer continued to become more broken with each visit in hopes of making it right was frustrating. We went from a leak under our freezer to needing a new fridge. This process has left us without a working fridge since May 13 and now we need to shop for one and get it delivered / installed.

Vinny and his wife came out early October 2025 to fix our refrigerator in our motorhome, they did…read morenot fix it. Strung us along for months. When my husband finally reached him, he offered to refund some of the money we had paid him. He offered, we did not ask. This started a few months ago, with a text from him in May saying he would send me a cashiers check. Still waiting................If I would have come here or the BBB first, we would have never called them.

Have used this company many times, but NEVER again…read more They literally charged us $465 to unplug a drain. This was about an hour's worth of work, not counting the time they spent going back to their service center because they didn't bring the necessary equipment. Avoid unless you want to get ripped off.

Scott did an excellent job installing my new A/C. I also had Horsch & Miller install a new hot…read morewater heater in my home and again another excellent job. They are do a very through job and are reasonably priced. I would highly recommend them!

Very disappointed messaged them many times to get my central air units up and running for 2026…read morecause they put them in 2025 but couldn't finish the job due to electric issues but that all should have been checked out prior to even talking about central air units. Now I have hire another company to get my units up in running. Plus hire a lawyer for them not finishing what they started. Very disappointed.

Ordered a 2-stage Goodman furnace with ductwork (moving the unit more central to better distribute…read morethe load to rooms) and later decided to add on a humidifier on the supply side. Prices are generally lower than the competition overall, no issues there. Briar (the one that does the quote) was polite. No problem there. But the installation had issues. First, they promised "Next Day Install" - but when the tech showed up he said they were out of stock of the unit. Which means another day's delay. It's one day, I wasn't sweating it, but they shouldn't advertise something they can't deliver. Tech does a walk through and says, quote, "yep, pretty straightforward, should be easy." Well, it wasn't. Should have been, but wasn't. It took the installer basically two full days to complete the work and by the near end, he was clearly rushing and frustrated over points he was getting stuck at. I offered to help with the ducting (he basically cut it to the wrong size. Not sure how that happened and why he didn't just cut a larger piece because he had tons of spare material, but I digress), and he said, quote, "you can't help me with this." (it's just pulling back the existing trunk a bit so he could fit his piece in. It's on hangars and he only needed a half an inch. This was his ego getting in the way, so he made himself struggle for 30 minutes rather than accept help from the homeowner.) PVC not properly glued ( and as a result the combustion pipe was loose and rotating outside), ductwork not installed straight, loose wiring hanging, A/C not reconnected, bare basic done on the humidifier water line, sloppy sealant, gaps not taped over, unclean runs, etc. By the end of day 1 I had basic furnace use, but he hadn't done any of the duct work. Day 1 was just the basic furnace itself. Day 2 he didn't install new hangers until I called him out, and the section he aded is not straight. They neglected to tell the electrician about the outlet/switch box on the side (if you're going to install a new furnace, that's kind of a given that you need to leave things the way they were). I paid the guy out of pocket because it wasn't fair to him, but basically Huffman dropped the ball on him. I was on the verge of giving them the water heater business but it took Briar too long to reply with the quote so I gave it to the plumber that installed the copper lines. That plumber is who identified the PVC issue, and even fixed it for free since they were working near it anyway. They also redid his water line connection from a needle valve punctured into the existing hot line, hanging under the joists (has not been code compliant for years) to a proper quarter turn shutoff valve from a new pipe branch that rises above the joist line. The plumber had to do a new gas line for his work just like Huffman had to do a new line for theirs, and the plumber's work is much cleaner than Huffman's installer. Huffman's line is not in any way attached to joists or walls or anything, just suspended midair, while the plumber made sure to do J-hooks and properly secure the gas line; then add a second shutoff valve upstream. When I reported the install issues with Briar he never replied, but the installer came back out and at least corrected the A/C not being plugged in. But neither could tell me about the permit or inspection - which implies they didn't request either. A huge problem if they didn't. Bottom line: if you just want the cheapest price, Huffman is absolutely it. And Goodman is a good brand. It's a quiet unit, it's a powerful unit that completely resolved my issues with inconsistent upstairs performance vs. downstairs, with a significantly quieter blower for the return vents. I have nothing but good things to say about the unit so far. However...if you're one of those homeowners that want quality, or you care about the visual of the install, or code compliance, or efficiency/speed, or accuracy of cuts...look elsewhere.