Heating & Air Conditioning / HVAC near Delafield

“Miguel came to our rescue at 9:30 pm on a 100 degree day coming up. Did an amazing job and explained everything he did. I will definitely which over to Kettle Moraine . Thanks again Miguel“

“I was very pleased with Grenz Service. Jim quickly diagnosed the problem with my furnace and was able to get the needed parts and complete the repair the same day. He explained how my system works and politely answered all of my questions. I will not hesitate to call Grenz in the future.“

“Lucas was very personable, polite and knowledgeable. He made recommendations but was not pushy and he made us feel like he really cared about the functionality of our unit.“

“Karl and his team installed a generac generator for my home today. They did a great job. I was so impressed by their communication and quality of work. It was a pleasure working with Sprung Heating and Pump and I highly recommend them for any job. I will be calling them when it’s time to replace my furnace as well.“

“I had a water line installed to the backyard. I was very impressed with the professionalism and knowledge of the project manager who came out to give me a quote. He covered everything and answered all my questions. The plumbers who did the installation showed me exactly what would be done and ran through everything again once it was completed. Everything went according to plan and cleanup was excellent. I can wholeheartedly recommend Austin and will definitely use them in future.“

“Great service. Very reliable. They took care of an AC repair on short notice on a Friday afternoon for one of our tenants. And very reasonable price.“

“Doug and Dakota were awesome. Professional and educated about the process. Thanks All. Well done!“

“Yoders Heating replaced and installed a hydronic boiler at my home in April 2026. As they worked, they were professional, efficient, and answered all my questions. They were a pleasure to work with.“

“Life savers! I was alerted that my AC wasn’t working while out of town. Russ fit in a service call the same day. My pets and I thank you! They’re the best!“

“Matt has been coming to my home for a number of years for the annual maintenance check up. He is always on time, gives great service and insight on the heating and AC product models and how to get the most efficiently out of them. He has been a pleasure to work with.“

“We have been a customer for over 30 years and would go nowhere else. They were the first to offer ongoing maintenance programs, which are amazing and absolutely worth the investment.“

“On the night of MLK Day - and the Miami v. Indiana college football game - my boiler went belly up. I tried to grit it out with my fireplace & 1 space heater, but the temperature in my house just kept dropping. I ended up calling Dave Perry's emergency number and got Andrew. He was at my house within 40 minutes. He went straight to work, determined the issue, drove to their office to see if they had the part. They did not, so he brought back 4 space heaters to get us through the night. The next day, Andrew and Dane worked off/on until 6 PM, to make sure my heat was functioning properly. Which it has been ever since. We were at below-zero temps when my boiler malfunctioned, but these guys just jumped in and got the job done! I've been with Dave Perry's for 11+ years, and I won't go anywhere else! Fantastic service!“

“Great guys. Honest. Easy to talk with and answered all my questions. Better than the big companies with big overhead.“

“Had whole house generator installed on time and great installation 3 weeks later woke up to cold house and they had new furnace installed by 3 that afternoon left cleaner then when they arrived would recommend wholeheartedlyService: Heating system installation“

“John and his team are rockstars. Extremely responsive, fast, friendly, all around awesome to work with. Thank you!!!“

“Two ambitious projects in the past year: 2 new replacement boilers and 2 new air conditioning systems. All four were professionally installed, at budget, and on time. The high pressure A/C is unobtrusive, and the new heating takes up maybe 20% of the old system. Special shout out to Brian, Larry, Carl, and Tim. Quite a crew.“

“Hopkin's Heating and Sheet Metal is run by a man of honesty and integrity. I was concerned that my boiler was old and inefficient but he showed me other ways to save money. He took the time with me to help even though he didn't make a dollar in the deal.Thank you, Rick, for the time and if I have an issue I'll be calling you because you didn't just try to make a sale. Thank you.Services: Heating system maintenance“