100% Confidence in them

Andrew from Wales, WI

Our air conditioner and furnace were 30 years old and both went out around the same time. Luckily my father in law gave me a good recommendation to call Grenz. He had hired them in the past and had great things to say. I can see why he said those things. They installed a brand new furnace and A/C all in one day. We got a quote from another company before hiring Grenz and they made no mention of needing to change and upgrade some of the duct work so that way our huge purchase isn’t hampered by the ducts. We then asked Grenz to give us a quote and I was so impressed with the attention to detail, use of actual math and measurements to determine what is needed for us, and the clarity it was communicated with so we could clearly understand what we need to do. I have 100% confidence they installed everything as well as you’d want a company to do. They were extremely courteous, smart, and professional. They also respond to any questions as quick as I’ve ever seen a company respond. The time in between the quote and actual install was super quick so that we weren’t left being sweaty and uncomfortable until they had time to do our job. Overall I have only great things to say about them and their work. It’s a father and son operation and you can clearly see that this is their life’s work based on the care and attention to detail. I’m glad we gave our business to them and will be giving it to them in the future for anything HVAC related.

Excellent service

Bob from Wales, WI

Grenz crew arrived exactly on time to install a furnace. They estimated that total installation time would have them leaving the site by 2pm. However, every thing went well and they were finished up by 12:30pm.

Outstanding work, fair price

Bud from Wales, WI

Consistently responded to requests for service & showed up on time. Thoroughly explained job being done & pricing. Excellent attention to detail. And cleaned up when finished!

This is the HVAC Team you want

Laura from Wales, WI

This company is fantastic; they go above and beyond to do more than just sell an HVAC system but to make sure you get exactly what you need and are comfortable with the entire experience. Very friendly, professional and knowledgeable. We interviewed multiple companies before selecting Grenz and they were miles ahead of their competition on so many levels. Call them and give them a chance!

Came same day to fix AC and charged a fair price.

George from Wales, WI

Great.

Fantastic Sevice

George from Wales, WI

Great Service

George from Wales, WI