In the Waukesha and Jefferson County, Grenz Service Company, LLC is well known for providing exceptional furnace repair, installation, and service. The people we send out to serve you are also top notch, something you'll see in their reviews below. Everyone you deal with at our company has the goal of making sure your experience with us will be so good you'll call us every time you need help. You can feel confident working with Grenz Service Company, LLC because we stand behind our work and comply with all local codes. This is why, as you can see by the map and reviews below, we are rated so highly for Furnace and Air Conditioning Repair in Oconomowoc, WI in Delafield WI. Call us today at (262) 646-3880!
They responded to my concern immediately, were there quickly the day before a holiday, diagnosed and fixed the problem within minutes, good price. Definitely recommend. Family owned business.
Great service, friendly, knowledgeable & trustworthy
Grenz has been providing service in our homes since 1999 and we are very satisfied customers! They’ve done maintenance, installed new furnaces and air conditioners. All work has been top notch for 20 years.
Knowledgeable, honesty, Integrity, and trustworthy are not words I just throw around. Grenz earns all of them in spades. They have earned my business for as long as I have breath in my lungs. Call them, you won’t regret it.
Contacted Grenz on a Sunday. Jim was back in touch within an hour. The problem was fixed the next day, after other contractors either didn’t know how to or didn’t want to repair. Or worse, they pushed to replace the furnace. This long time issue is now fixed and no longer a worry.
Grenz has been our heating/cooling service provider of choice over the years. We own a 1800’s Victorian home where we find most home service providers flee. Jim and team are super friendly, consistent with great service and pricing is competitive. Thanks for updating both our heating and cooling systems, the new energy efficient systems are awesome!
Grenz and Jim Jr give consistently outstanding service.
We are so happy to have found someone to fix our problems.
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