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

Mark from Pat's Hearing came out to check my furnace in less than a day's notice. He checked my…read moreEcobee thermostat both inside and outside at the furnace. He inspected the heat exchange and found areas of concerns due to age. The furnace is 20 years old and I know I'll need a replacement soon. Many in my condo have had theirs replaced in the last several years. My time will be coming soon. Mark had the office staff provide me with an estimate for replacement. They did this promptly and I thank both Mark and the office staff for the follow through. As always, Mark was respectful, kind and very professional. He made me comfortable with both his service and knowledge. I would be very happy to have him back to provide service again and would recommend him and Pat's.

Kory and Carlos installed our new water heater today and did a great job. They even brought us a…read moregift of chocolates to thank us for our business. We have used Pat's Heating and AC for many years. Brady was here a couple of weeks ago doing maintenance on our heater. All their staff are stellar. Highly recommend.

We had a new furnace installed in 2023 and a new air conditioner in 2024. We signed up for the…read moreannual "Maintenance Agreement". Well, we are 100% satisfied with the quality of workmanship, professionalism, prompt service, friendly attitude and excellent products sold. We have never needed a service call on either machines to date. The annual maintenance is such an outstanding offer. It gives you peace of mind that your investment is being taken care of. I would love to recognize Ray Seeber, our technician for his outstanding quality of work. He was so informative, patient and respectful. Thank you Ray, we look forward to seeing you again. Kettle Moraine, you are certainly the BEST!!!! Mr.& Mrs. O'Brien

I was told the service visit would be $125. I was then charged an additional $175 for about 45…read moreminutes of the technician's time, for a total of $300. No repairs were performed and I was ultimately told that the AC was operating normally, without a solution to the temperature difference I had called about. I understand paying for diagnostic time, but $300 for this visit felt very expensive, and I wish the additional charges had been clearer when I scheduled. Update: I appreciate the business owner commenting on their charge process. The technician specifically noted charging me for 45 minutes, and I have an email time stamped 45 minutes after he started work. Also, none of the paperwork notes that the initial charge includes 30 minutes of time, which further emphasizes my point about transparency. Update: Update: I previously listed the wrong dollar amounts, so I am correcting them after reviewing my invoice. I was charged $149 for the diagnostic visit plus $130 for an additional 45 minutes of labor, for a total of $292.95 with tax. After the business stated that the technician spent approximately 75 minutes diagnosing my AC, I requested their timestamped records. Their records show that at 12:38 PM I signed their Customer Acknowledgement stating that "all work has been completed," and my invoice was emailed at 12:40 PM. However, they are counting time through 12:51 PM toward the 75-minute visit based on their tracking system. I disputed the additional labor charge and requested a refund. The company refused and offered only a credit toward future service, which I declined. My concern is not that diagnostic work costs money. My concern is being charged for diagnostic labor that I do not believe is supported by the company's own records.

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.

Had to have another provider correct installation of thermostat. Air Conditioner was never…read moreconnected properly

Incredible service all around. The staff are so communicative and friendly - it's as if they are…read moreall owners of Droegkamp! Since helping us with a furnace issue during the great freeze of 2025, we have been using them since. Our family won't look to anyone else now.

I called to get a A/C tuneup and they were able to fit me in within the same week. I was so happy…read morewith the service and technician I called and scheduled a furnace inspection. The technician (a different one) Ian came and was very knowledgeable and willing to answer a few questions I had. He was even able to give me a quote on some future add ons they I would like to get the same day as my service. I am very happy with the service provided and Aire Serv will be the only one I deal with from here forward. It is nice to know that you are actually getting what you pay for when they come because everything is explained to you in terms you understand! Thanks Again for the great service!!

This business advertises "up front pricing", NOT TRUE. Had a service call to address a loss of…read moreheat. A slowly failing inducer motor was diagnosed. The tech, "made adjustments", got the furnace to ignite, and refused to tell me how. He then consulted with his boss and returned with a $496.00 bill. This is about 3x the amount of a common service call. He added that they would apply the $496.00 to the price of installing a new inducer motor, or a new furnace. Making the installation of a new inducer motor $904.00. I spoke with a supervisor who said it was more than a service call because "adjustments" were made, and the heat is now on. I consider this very sneaky and out of line. They never told me this service call would be $496.00, or any price for that matter. It was a sneaky rip off that the consumer should be aware of. I should have paid no more than $200.00 for that service call. Future customers should be aware of this tactic.

I'm not big on writing reviews, but this service was exceptional…read more My heat went out last night during the Packer game. I called as soon as it was over thinking I'd have to leave a message for a call back in the morning. Nope. The owners wife was so friendly despite it being late on Sunday. They answered the phone, offered to come out that night, but opted for an appointment during regular hours. Are you ready for this? They got me in the next morning, diagnosed it right away, ran to get parts across town, and had them installed so fast it was spooky. I'm hesitant to trust heating and cooling companies, but was seriously impressed. They'll be coming back for a clean and check on my furnace and A/C unit this spring. Great job, Russ. Yep, the owner of the company is still in the field

Turned on the air yesterday so John could come home to a cool home after a day of construction…read morework. No cool air. John got home, called Russ as he had previously used him for AprilAire. Before 10 am today cold air is blowing! VERY nice, professional, reasonably priced, transparent in their work, open for any communication or questions during and after. I feel TOTALLY CONFIDENT giving this company 5 WELL-DESERVED stars!

Tom misquoted work I hired him to do. He gave me a quote, showed up for the job, realized he didnt…read morepay enough attention (he overlooked my basement ceiling being drywalled ) He started the job but decided after cutting three vents holes in my floors that he didn't want to finish the job he misquoted. Than he sent Elizabeth his admin person to do his lying for him. They now demand i remove the entire ceiling and verify there is no mold or asbestos before they will return. We discussed the condition of the basement, specifically that there is soke mold and likely asbestos wrapped pipes. The morning he arrived to do the job he immediatelyadmitted he screwed up. He assured me he would do the work anyways as it was his mistake. Now he won't respond to messages sent directly to him, and Elisabeth is like dealing with a child who will not admit they are wrong. Despite the very good reviews, it has been a nightmare trying to get this company to follow through with what they said they would do. I strongly recommend you look elsewhere for your work.

Tom Yodor maintains the HVAC equipment in my home. He does a terrific job, and is very…read moreinformative so that I can plan work in the future. This past Monday he installed a new Honeywell T10 Lyric thermostat. He tied this in to my existing bypass humidifier to automatically control it to minimize window sweating in the summer. The new controls required a new wire to tie the thermostat to the humidifier. Tom efficiently ran the wire from the main floor to the basement. The T10 can also control via remote sensors to assure adequate heating and cooling. I am very happy with the thermostat, and how the system operates!

We thought we needed vents cleaned. Usually, this can cost hundreds of dollars depending on who you…read moreuse and size of the job. I don't know what someone else would do, but Abner the owner came over the day after I contacted Yelp for contractors. He came out and told us after looking at our furnace that it was clean and we don't need his services! I was amazed. He then advised us by telling us he would do this and his staff as well to be honest and forthright. This is what a business should be doing. Help people, do right by people and if you do the work, which he informed us, would be done or redone until correct. I don't know what the cost would be if he had to do the work for us, but I was impressed with his words, actions and information. He returned after advising us that the furnace should be sprayed with a deterrent to prevent mold and came back to do the job for us the next day. Wonderful. 5 star quality business practice.

From the owner: Call for a free estimate today.read more

We had a leaking front loader washer and called them. They immediately ordered a new door seal…read more While waiting for the seal to come in, the repair technician contacted us with some suggestions to alleviate the problem. We texted him photos and videos. He was super professional and very helpful contacting us via text over a number of days. We ended up solving the problem without the repair. Lake Country did not require us to take the part. I also offered to pay a trip charge since they were so helpful. They said it wasn't necessary. Lake Country is the antithesis of every bad joke and negative comment about appliance repair companies. They are kind, prompt, concerned about the cost to the consumer and consummately professional. Totally first class.

Really appreciated the quick service! Lake Country Repair was able to come and fix our oven the…read moresame day and was able to have it fixed within 45 minutes. I highly recommend Lake Country Repair.