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

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.

We have used Dave Droegkamp for several years. In 2020 we purchased a new furnace from them and we…read morehave had it serviced by them since. We had a minor issue with it not starting this season and Dave B. and DeShay came to our home and promptly fixed the issue. They were professional, explained the issue, and cleaned up after they were done.

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.

Our AC stopped removing heat from our home during a hot Summer week. All Star (technician: Tony)…read moreshowed up within their scheduled arrival time, quickly diagnosed the issue(s), replaced the necessary parts from their stock, performed basic maintenance, and had us back into our comfort zone with in no time. You can count on All Star Heating to offer you their excellent knowledge and great service to get you through the Summer heat. Thank you!

I have used All Star since I moved to Hartland 10 years ago. I purchased my AC unit from them and…read morehave been very pleased. The owner came over and showed me all my options before purchasing the unit. I have had his technicians do routine maintenance on my furnace as well and they have been both friendly and knowledgeable.

These guys are very efficient and straight to the point. They don't try to sell you on things you…read moredon't need. Josh and his team of HVAC magicians were very kind and knowledgeable. It felt good to be kept in the loop from start to finish. I would recommend this company over any others in the Wisconsin area. Thanks for being Rockstars!

From the owner: Residential and Light Commercial Heating and Air Conditioning Services…read more

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 was very happy with my experience with Sprung heating. They worked directly with my home warranty…read morecompany and I didn't have to pay upfront, only the $75 service request fee for the warranty company. Service was fast and friendly.

My furnace broke this week. I called Karl at Sprung Heating because he had replaced my well pump…read moreearlier this summer. He came out within hours of my call, diagnosed the issue immediately and had his guy at my home with in an hour of the diagnosis. The service man was done fixing my furnace within three hours. He was courteous, conscientious and did a great job! I would highly recommend Sprung Heating and Pump. They also did a fantastic job replacing my well pump.

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.

I worked with Droegkamp to have a heating unit added to my garage. They came out and discussed…read moreoptions for the unit, its placement and how best to run the utilities to it. Once the unit came in, the installation crew did a great job getting things up and running and cleaning up the work site. Really pleased with Droegkamp!

Company installed all my HVAC equipment when I built my home 5 years ago. Quality work, friendly…read morepeople. Also thorough routine service. Highly recommend.