Matthew Dux was courteous, efficient and explanatory. Also, very knowledgeable when serving the air- conditioner and furnace and did an…
The serviceman from Zenner & Ritter provided excellent service when called to repair my mother's furnace. He explained the problem…
Had maintenance performed on our whole house generator, air conditioner and furnace. Very professional. Our technician Greg was very personable…
The technition arrived on time and when scheduled. He was thorough, neat, and he explained exactly what he did. H…
Andrew was very courteous and helpful in giving information on how to keep up our furnace and air conditioner. Very…
Excellent service, customer friendly, knowledgeable & informative technician. Friendly & courteous scheduling person. I rate Zenner & Ritter, Inc., an…
Outstanding service. Keith came within two hours of my call. He diagnosed the problem -- after another professional HVAC man…
Our repair person was very professional and took the time to let me know what he was doing. He also…
Great Technician- 20 yrs.with Z & R, great communication prior to arrival and after, through evaluation and cleaning of unit…
I had new central air installed in my home about 9 yrs ago and a new furnace 5 yrs ago…