250 West Main St.
Delafield, WI 53018
262-646-3880

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Local Reviews
for delafield, wi

Rated 5.0 out of 5 stars based on 43 customer reviews

Great service!

Jim installed a new remote system for my gas fireplace. He was quick, knowledgeable and very friendly. I highly recommend Grenz.

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Great service

Great company!

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Friendly, professional service

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

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Great Service

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.

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Great service/immediate help

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Great service!

Once again, great service! Thorough, hard working, efficient, friendly, courteous, and knowledgeable. We have loved working with them over the years and will continue to.

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Outstanding service. Quick response to fix my AC

Jim does a great job of explaining the problem and offering solutions to fix the problem. I can trust Jim.

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Great service, quick response

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EXCELLENT SERVICE AND INSTALLATION!!!

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On Time Great service and personality

Bill was outstanding person and knew exactly what he was doing --very professional

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Prompt

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Great Service

I called for service on my sisters furnace. After leaving a short message I received a return phone call from Jim that he could be there within the hour. He indeed showed up, went right to work and had the issue resolved within a half hour. He had to get the part, installed it, replaced the filter and cleaned up all within a timely manor. Both Jim and his partner were very professional, polite and a pleasure to do business with.

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Respectful. Timely

Jim has a great disposition. always friendly. does his evaluation,tells you about how it will cost, then goes to work & gets it done. never tries to sale you anything you don't need.good about answering any questions one might have..............

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furnace/boiler work

Junior can be counted upon to be immediately in response and promptly replying. Cogent and quickly assessing the issue. He nails it!

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Awesome service

Great people to work with. They explain what’s going on and give you a price for parts and service.

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Job Locations
for delafield, wi

James P. G.

James P. G. Job Checkin

American Standard Install

American Standard Install

James P. G.

James P. G. Job Checkin

American Standard AC install

American Standard AC install

James P. G.

James P. G. Job Checkin

American Standard Vartiable speed AC system

American Standard Vartiable speed AC system

James P. G.

James P. G. Job Checkin

Carrier furnace repair

Carrier furnace repair

James P. G.

James P. G. Job Checkin

Lennox furnace repair

Lennox furnace repair

James L. G.

James L. G. Job Checkin

Service fireplace, install new remote control system and new fan automatic operation system with speed control.

Service fireplace, install new remote control system and new fan automatic operation system with speed control.

James P. G.

James P. G. Job Checkin


James L. G.

James L. G. Job Checkin

Repair fireplace and test

Repair fireplace and test

James P. G.

James P. G. Job Checkin

American standard platinum system install

American standard platinum system install

James P. G.

James P. G. Job Checkin

American standard system install

American standard system install

James P. G.

James P. G. Job Checkin

American Standard AC I natal


James P. G.

James P. G. Job Checkin

Carrier air conditioning repair

Carrier air conditioning repair

James P. G.

James P. G. Job Checkin

American Standard AC install

American Standard AC install

James P. G.

James P. G. Job Checkin


James P. G.

James P. G. Job Checkin

American Standard Humidifier install

American Standard Humidifier install