Heating & Air Conditioning / HVAC near Pewaukee

“A reliable company always responsive when needed. They installed my furnace, air conditioner, and water heater (in 1994) so regularly perform maintenance. I upgraded (myself) my thermostats to Nest units, and when one wasn’t working properly in cooling mode, they fixed it by adding an extra board to the zone, even though they didn’t supply Nest. They also replaced my water heater after it broke down; six months later, it failed again, and they replaced it free of charge—including the labor cost, which many companies don’t cover. Overall, very satisfied!“

“We needed a new A/C and it was a difficult job in our attic. They made it work and were here the next week. They were very professional, knowledgeable, friendly and answered any and all questions we had. Thanks guys!“

“It was perfect, on time, fast communicated what was done and what to continue to be on the look for.“

“Steve and crew do a great job. Have used them twice now. Timely and efficient. Great work all around. Provided a great solution for ventilation for a range exhaust today. Saved a lot of kitchen cabinet space!“

“Very professional and courteous. Prices are very fair. Will definitely use their services again.“

“Explained what the problem was and what the options were. Very personable tech.
We have been out of town since before the bad rainstorms earlier this month. Asked them to check on something for us. He found something wasn't working and asked if we wanted him to figure out what was wrong. He tracked down the problem and told us what needed to be done to fix it. He let us know what the additional charge would be and asked him to continue with the additional repair.

Very happy He was able to figure out what the problem was and kept calling to keep us updated.“

“Ryan was my service engineer. He was great at explaining my situation and options. He took his time to listen to all my concerns. I left with a furnace that I felt confident with for the foreseeable future.“

“We had our AC unit go out, and called Gregg Heating- SAME day they came out. Everything was completed the same day. We had Kyle, and he was fantastic!! He explained it all to us, was quick and thorough, and the cost was very reasonable. I would highly recommend Gregg Heating for prompt efficient and informational. We will definitely for any further HVAC needs-- Good Job Gregg Heating!!“

“The team at Donovan & Jorgensen does an amazing job of keeping our system running smoothly and extending the life of our system. The technicians are friendly and knowledgeable and are clearly working with our best interest in mind. And the organization stands by their work and the product. Highly recommend!“

“We had Nick from Thielman out to our new home to review the condition and usability of the boiler and hydronic baseboards we had. He was very professional and efficient and did a great job putting us at ease that things were working as they should. Thank you Nick!“

“We had 1st Choice Heating & Cooling back to do our yearly tune up on our furnace. Tim did a great job with going over all the things he was checking and explaining why , he also answered all the questions.We are very happy with the furnace and heat pump they installed and are doing the service .“

“They just replaced our original furnace and condenser on our home this week and they did a terrific job! Clean install and clean up very well after themselves. Very knowledgeable and straightforward with explanation of pricing and how the system works. I highly recommend!“

“Amazing job did the job very well tell all your friends about his place amazing job out of all the companies I’ve seen do this this company was the best of all of them call all of your friends and tell them to hire Dave droegkamp keep up the good work guys“

“We just had Dave Perry Heating and Cooling install a new boiler and hot water heater, along with other updates to our hydronic system and they did an outstanding job. Prompt and thorough, high quality work and we strongly recommend them.“

“I went there to have a large chimney cap made not only did they have it done the next day but it turned out awesome and I cant thank them enough for speedy service and attention to detail. I definitely recommend this place for all your sheet metal projects.“

“Air Control installed a furnace and air conditioner for me about a month ago. They were quick and professional. I'll be recommending them to anyone that asks.“

“Giertsen was recommended to me by my insurance company - that is a good sign. The quality of work was excellent and they were very responsive to question I had. If I would have damage to my home again, I would not hesitate to usel them.“

“This company was part of my home warranty providers. They explained to me what the problem was and fixed it.“

“Quality mechanical contractor. They just added 10 technicians to their crew. HVAC, plumbing and sheet metal.The name has changed to PremiStar.“

“Had New Berlin H&C was here this morning checking on our heater. He was on time, professional, super knowledgeable and friendly! We have used this company for 20 years and have nothing but wonderful service.“

“Luke was amazing work a long day went beyond what was expected great work. I recommend Austin plumbing“

“Very pleased with professional and expert work performed by Bryan on 9/9/25 regarding Signature Club preventative maintenance for heating.“

“John's service at Seider was fantastic. He had great response time to my questions and shared his knowledge on all things for air conditioning. I'm happy I went with Seider and recommend working with the family owned business.“

“Nate was fantastic! This company is the one to call if you want a fair and honest job. They don’t play the storm chaser games.“

“I experienced Thielmann & Son's service through my Costco membership. If that does not tell you something, allow me to expand. From the moment of receiving a call from their front desk to the completion of the project, every bit was clock work professional, clean, and honest. Measurements and size of the HVAC system, explanations of what each term means and how it impacts the home, energy consumption, etc were all provided with a lot of patience. I had enough time to do my own research regarding pricing, current labor, comparison of brands and models, etc. I am impressed by these folks and their business model. The work was spot on, clean and surgically executed. I am a loyal customer now for the annual maintenance and if other needs arise. Keep up the good work Thielmann and Sons.“

“We had some plumbing work done and also bought an HVAC system from Fennig. Everything went as expected and the work was excellent. We've had a couple of "emergencies" and Louie has always been very responsive. He explains the problem well and has even shown me how to fix it in the future. Definitely give Fennig a call.“