exceptional service

Sally from Pewaukee, WI

Couldn't ask for a more helpful, courteous person coming into my home

Spectacular service, fast, affordable!

Derek from Milwaukee, WI

Great Company and people

Rodney from Hartland, WI

fantastic!!

Patty from Oconomowoc, WI

Friendly people, professional

Jerry from Mukwonago, WI

Great Service

Krissy from Watertown, WI

Grenz ,excellent customer service gives me piece of mind know that my equipment is maintained by professionals who are dedicated to excellent service. I recommend that everyone use them, they are honest and reasonably priced.

Fantastic service and pricing!

Jeff from Pewaukee, WI

Ac service

Ken from Delafield, WI

Very responsive and great service

Great service

Rich from Eagle, WI

Jim explained the problem very well and fixed it Great job

Great service and advice at a fair price

Craig from Waukesha, WI

Grenz is always very responsive. They give good solid advice to make repair decisions on. Work is done well and explained. I'm addition, they have always worked around my schedule and coordinated with the tenants of the property.