Polite, responsive service

Andrew from Pewaukee, WI

Great service

Joeseph from Pewaukee, WI

Called before the appointment and was very knowledgeable on my bar coolers

Great service !! And very awesome price !!

Charlene from Pewaukee, WI

Awesome Service

Lisa from Pewaukee, WI

Professional, trustworthy, reasonable, and super nice! Would definitely recommend to family and friends!

Great Service

Phil from Pewaukee, WI

Jim was at my house in 30 minutes after my call. Very knowledgeable, totally professional, and resolved my problem immediately. Even made two additional checks to insure my system was up and running correctly. No question who I’d call if I ever have HVAC problems in the future.

Great service, took the time to give us information and answer our questions. Very timely install.

Greg from Pewaukee, WI

Would recommend their service.

Super customer service

Julie from Pewaukee, WI

Grenz returned our call quickly and was flexible on appointment set up. Was courteous, friendly and fixed our furnace fast!!

Quick response to service call

Bob from Pewaukee, WI

As normally occurs with Grenz Service Co, Jim was prompt with a response to a service call. Arrived to the site on time and found the vent blocking issue in a few minutes and corrected the problem

Prompt service. Very polite.

Kent from Pewaukee, WI

exceptional service

Sally from Pewaukee, WI

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

Fantastic service and pricing!

Jeff from Pewaukee, WI

Great Service!

Kathy from Pewaukee, WI

The Grenz team of technicians installed my new AC unit. The service technician was very professional, courteous and trustworthy. I would highly recommend Grenz for your HVAC.

Speedy, effective, and polite service!

Kirk from Pewaukee, WI

With a ton of other jobs to go to, we were given priority and had our issue dealt with in an efficient and timely manner.

Great service along with a fair price.

Larry from Pewaukee, WI

Installed my new furnace and air conditioner 2 years ago and they did a great job. We now just have it checked every couple of years. Jim checked every thing out and they are working well. I'll see Jim again in a couple of years.

Commercial Boiler System service

Mark from Pewaukee, WI

Service was fast and efficient.