Excellent, knowledgeable, responsive, friendly service. What's not to love? I've referred others to…read moreNimmer and they agree.

We had our yearly AC checkup. Natalie was on time as…read morepromised and very professional. She suggested a part be replaced and explained the reason for it to be updated. We've had her for our furnace checkup also. Nice to see her again.

Call placed before 8AM. Furnace fixed and restored by 10:30AM!…read more Repaired and took the time to explain what the problem was and to replace the filters. Thank you! Bob H. West Allis

Before coming out for service, I was given two suggestions as to what was causing the leak in my…read morefurnace. Not initially feeling confident with being able to fix the problem myself, I was told that they could send over somebody later that morning to check it out. I did end up, fixing it myself, but I appreciate the honesty of how I could fix it myself. I will definitely be calling them in the future for any future issues with my furnace or central air.

Alex was communicative before arriving, prompt, and professional. An on-site quote turned into a…read morerapid repair of baseboard heaters. He was friendly and knowledgeable and gave good advice on upkeeping our boiler. I'd highly recommend 911 Heating to anyone in the Milwaukee area!

Excellent communication, very professional. Came out to the…read moreproperty, assess situation and provided sound advise based on our needs.

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.

My thermostat died during a heat wave. Randy and Hunter came and replaced it the morning after I…read morecalled Gross. Randy was very professional and personable. He took the time to explain, in detail, what was going on and what my options were. I will call Gross for any of my future HVAC needs.

It's mid-December and the temperature is dropping to zero tonight, so of course our radiant heat…read moreboiler pump started making a horrible noise. I called Gross Heating on Monday to have someone come out asap. I was told Wednesday morning was the soonest they could make it. I was reluctant to call another company because in the past I had a bad experience with another. The last time Gross came out, they did a great job, so I called them back and said okay to Wednesday. They said they could actually send someone out Tuesday, late in the afternoon. The technician came out and apologized, saying this job may take more time than we have today and run into a lot of overtime. So, a new appointment was set up with another tech for Wednesday morning. In a way I'm glad this happened because the new tech was excellent in every way. He had the part I needed on his truck and had everything completed at noon. While he was there, our daughter called saying you won't believe this, but my boiler stopped working and I have no heat. Gross had anticipated the tech would be at my house the entire day. I asked if we could go over to her house to take a look at her boiler. Gross said okay, so off we went. She needed a new pump motor, which luckily he also had on his truck. In conclusion, both of our heating systems were fixed in the same day and at what I feel was a reasonable price. I trust Gross Heating and wouldn't use anyone else.

Tyler did a great job tuning up the furnaces at our duplex. He was thorough, yet efficient, and he…read morefully explained the work performed. The price was just right (less than $250) for an annual service plan. I'd trust Uttke to provide quality services again should we need them in the future.

I called Uttke to give me a second opinion on my furnace in Bay View, after a competitor told me I…read moreneeded an entirely new A/C and Furnace, and furthermore that my air handler was cracked, and carbon monoxide was potentially leaking into my home. Uttke performed a diagnostic and confirmed what I thought all along--the air handler was not cracked, and there was no carbon monoxide leaking into my home. The system was cutting off because I had installed one of those "smart" thermostats that have given homeowners so much trouble. Uttke did show me a good replacement for my furnace when the time came--a mid-range Armstrong furnace. I appreciated their integrity. I went out of my way to purchase AprilAire filters from Uttke because I appreciated how I was treated. Fast forward a couple years and I had moved to Cedarburg and needed two heat pumps. I called Uttke, got an in-person assessment, and a quote. I purchased on the spot and within days I had two heat pumps installed. Uttke was great in terms of communication to make certain the units were placed where I wanted them, and where they would make the most sense. I would recommend Uttke with confidence.

I have dealt with a lot of furnace and water heating guys over the years and I THANK GOD I found…read moreMARK. He is one of the most honest and hard working guys I met. I had a furnace go last year and gave him a call because friend said he did good work. He was out the next day and walked us through what would fit the house and what would fit my pocket book. Last week my HOT water went and he gave me a call back and said he was in the area next day. He was on time and fixed it in a flash. He is also clean and handles himself as a true gentleman. I am over in Beaverdam and I recommend Mark anytime ! Great experience both times

Fiedler heating has been repairing my furnace for almost 9 years. He's always been quick to respond…read moreeven though I don't have children he makes an extra effort to get to homes with failed heating for families that have children. Even when my furnace wasn't installed by him originally he managed to keep it running until I ended up replacing my my furnace with a new one that of course he installed. I could not be happier with his service and I'd recommend it to you. Mark gave me a great deal on a high-efficiency furnace that replaced my 24-year old one and reduce my heating bill.

JM mechanical is always available, very friendly, and they provide top notch service that meets…read moreyour needs at a reasonable price. I've relied on them for years!

Jon has always provided fast courteous service at a fair price, have replaced furnace, a/c and hot…read morewater heater in last few years, highly recommend their products and services.