Great service

Jesse from Delafield, WI

Great company!

Friendly, professional service

Richard from Delafield, WI

Jim and his team replaced the a/c units in a timely and convenient manner. They are always friendly and explain in an easy to understand way. Very happy to recommend Grenz Service

Great Service

Paul from Delafield, WI

Grenz Services identified issues with our furnace while conducting seasonal service checks and cleaning. They also identified a leak in our air conditioning system during the same visit. The technician helped setup a system review for the Spring of 2021. Grenz Services conducted an in home review of our heating and cooling needs and offered two options for us to choose from. Each option was explained in detail helping us to make an informed decision for our needs. They setup the installation and removal of the old system. The crew left our house cleaner than when they began the work. They were in and out in about 5.5 hours. I will recommend them to anyone that I know is looking for HVAC work.

FANTASTIC SERVICE

Bill from Oconomowoc, WI

Furnace issue resolved quickly at a great price

Colleen from Oconomowoc, WI

I really appreciated the technicians honesty and accurate diagnostic skills. The work was done quickly and I now have heat again.

Great service

Tom from Brookfield, WI

Jim was able Fix are30-year-old gas fireplace and saved us a lot of money.Other companies quote a lot more money. Jim’s knowledge and personality is simply amazing

Great Timely Service.

Adam from Waukesha, WI

Furnace went out overnight. Jim gas it fixed by noon.

Great service

Monica from Ixonia, WI

Prompt- professional- very courteous- explained what was wrong- and what he was going to do to fix the problem.

Great service

Monica from Ixonia, WI

Prompt- professional- very courteous - explained what was wrongs done what he was doing to fix the problem.

Outstanding service

Becky from Jefferson, WI