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Contact Your Independent American Standard Dealer:

Grenz Service Company, LLC

Serving Delafield, WI and Surrounding Areas.
License Number: 3668
Emergency Service Available
Mon: 8:00am - 5:00pm
Tue: 8:00am - 5:00pm
Wed: 8:00am - 5:00pm
Thu: 8:00am - 5:00pm
Fri: 8:00am - 5:00pm
Sat: Closed - Closed
Sun: Closed - Closed
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Our Services

  • Air Conditioners
  • Air Filters
  • Boilers
  • Commercial Refrigeration
  • Ductless Air Conditioning
  • Ductless Mini Split
  • Furnaces
  • Gas Logs/Fireplace
  • Heat Pumps
  • Ice Machines
  • Indoor Air Quality
  • Zoning
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About Us

RESIDENTIAL / COMMERCIAL / LIGHT COMMERCIAL SPECIALIST

Grenz Service Company is a Waukesha and Jefferson County area favorite, bringing friendly, dependable heating, cooling, and commercial refrigeration solutions to businesses and homes. Led by Jim Grenz, Jr. and Jim Grenz, Sr., our family-run company provides expertise, integrity and a personal touch. We specialize in: - Commercial and residential service on all makes and models - Air conditioner and furnace repair - Maintenance on all brands of air conditioners, heat pumps and furnaces - One-stop installation and service on all commercial refrigeration equipment, including walk-in and reach-in freezers and coolers, back bars and ice machines - Gas fireplace service and maintenance Our helpful, continuously-trained staff is always on standby to answer any questions, and we offer the proven quality of top brand names to ensure that you get the most performance, value and peace of mind possible. We are an independent dealer of American Standard Heating & Air Conditioning products and excel in their installation and service. Expert Solutions. Reliable equipment. Easy-to-talk-to people. For heating, cooling and refrigeration that delivers lasting results, you've got friends at Grenz!

Grenz Service Company, LLC (262) 646-3880 250 W. Main Street
Delafield, WI 53018

COUPONS

 

$20 Off
$20 Off Your Next Service
Call us for your heating and AC repair needs in Delafield, WI!
Cannot be combined with other offers.

Local Reviews

Grenz Service Company, LLC Rated 5.0 out of 5 stars based on 148 customer reviews

Map of Delafield, WI

Great service




Review of Grenz Service Company, LLC

Great company!


Map of Delafield, WI

Friendly, professional service




Review of Grenz Service Company, LLC

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


Map of Delafield, WI

Great Service




Review of Grenz Service Company, LLC

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.


Map of Oconomowoc, WI

FANTASTIC SERVICE




Review of Grenz Service Company, LLC


Map of Oconomowoc, WI

Furnace issue resolved quickly at a great price




Review of Grenz Service Company, LLC

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


Map of Brookfield, WI

Great service




Review of Grenz Service Company, LLC

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


Map of Waukesha, WI

Great Timely Service.




Review of Grenz Service Company, LLC

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


Map of Ixonia, WI

Great service




Review of Grenz Service Company, LLC

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


Map of Ixonia, WI

Great service




Review of Grenz Service Company, LLC

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


Map of Jefferson, WI

Outstanding service




Review of Grenz Service Company, LLC


Review




Review of Grenz Service Company, LLC


Fast and efficient service.




Review of Grenz Service Company, LLC


Great service/immediate help




Review of Grenz Service Company, LLC


Amazing service, affordable price!




Review of Grenz Service Company, LLC

Jim came out to fix our fireplace that had stopped working. He was able to fix it quickly and at an affordable price. Sometimes having services coming into your home can be awkward, but he was very friendly and explained what the problem was and how he fixed it. Highly recommend Grenz Service!


Very professional service




Review of Grenz Service Company, LLC

Thorough


Jim Was Great




Review of Grenz Service Company, LLC

Jim was over to do service/a tuneup on our gas fireplace. He was very thorough and explained everything that he was doing. He has a great amount of knowledge and experience which made me really comfortable at the end of the day. I would recommend his company to anyone.


Great service!




Review of Grenz Service Company, LLC

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.


Great




Review of Grenz Service Company, LLC

Grenz is an exemplary service company. I highly recommend Grenz and the American Standard Brand.


excellent, very pleased, would tell my friends




Review of Grenz Service Company, LLC


Trusted and professional




Review of Grenz Service Company, LLC


Great service




Review of Grenz Service Company, LLC

My AC unit stopped working on a Friday morning. Jim was able to come out within a couple of hours that afternoon. He was very knowledgeable and knew right away what the problem was. I appreciated that he explained to me what was wrong. I have Grenz scheduled for general maintenance coming up and know I’ve got a great company coming.


Excellent service




Review of Grenz Service Company, LLC

Grenz crew arrived exactly on time to install a furnace. They estimated that total installation time would have them leaving the site by 2pm. However, every thing went well and they were finished up by 12:30pm.


Top Notch Company!




Review of Grenz Service Company, LLC

We needed both central air and furnace unit. Jim came out to our home to meet with us and provided a very thorough and comprehensive explanation of his products and services. He inspected our home and gave us several options. I have NEVER met an individual so thoroughly knowledgable about the industry, their product line, and technical details. Outstanding person to work with. Very professional communication - and timely! They reminded us of their upcoming visit and provided detailed receipts. (Nothing hand-drawn here!). The install was flawless - professional and hard-working team. I sincerely wish I experienced this degree of professionalism, honesty, and expertise with each company we worked with. We are very grateful we found Jim and his team. They are now our HVAC company and we would highly recommend them to everyone. Thank you Jim!


Great service




Review of Grenz Service Company, LLC

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


Outstanding service. Quick response to fix my AC




Review of Grenz Service Company, LLC

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


James P. G.

James P. G.

American standard package unit installed

Near Paul Dr, Helenville, WI 53137
Helenville, WI - American standard package unit installed
James P. G.

James P. G.

Second opinion and clean dirty condenser coil

Near Quinlan Ct, Pewaukee, WI 53072
Pewaukee, WI - Second opinion and clean dirty condenser coil
James P. G.

James P. G.

Carrier air conditioner repair

Near Trowbridge Trail, Hartland, WI 53029
Hartland, WI - Carrier air conditioner repair
James P. G.

James P. G.

American standard platinum system install

Near Co Rd K, Jefferson, WI 53549
Jefferson, WI - American standard platinum system install
James P. G.

James P. G.

Carrier air conditioner repair

Near Audubon Park Dr, Ixonia, WI 53036
Ixonia, WI - Carrier air conditioner repair
James P. G.

James P. G.

Fillet cooler repair

Near Air Park Dr, Watertown, WI 53094
Watertown, WI - Fillet cooler repair
James P. G.

James P. G.

American Standard Install

Near Ridge Rd, Waukesha, WI 53189
Waukesha, WI - American Standard Install
James P. G.

James P. G.

American standard platinum system install

Near Hidden Hollow, Delafield, WI 53018
Delafield, WI - American standard platinum system install
James P. G.

James P. G.

Walk in cooler refrigeration

Near N Main St, Dousman, WI 53118
Dousman, WI - Walk in cooler refrigeration
James P. G.

James P. G.

American standard system install

Near Mill Rd, Delafield, WI 53018
Delafield, WI - American standard system install
James P. G.

James P. G.

Goodman heating system maintenance

Near Minot Ln, Waukesha, WI 53188
Waukesha, WI - Goodman heating system maintenance
James P. G.

James P. G.

American standard platinum variable speed install

Near N Dylan Rd, Wales, WI 53183
Wales, WI - American standard platinum variable speed install
James P. G.

James P. G.

American Standard system install

Near Co Rd O, Oconomowoc, WI 53066
Oconomowoc, WI - American Standard system install
James P. G.

James P. G.

American standard system install

Near I-94, Watertown, WI 53094
Watertown, WI - American standard system install
James P. G.

James P. G.

Lennox air conditioner repair

Near Wild Berry Ln, Waukesha, WI 53188
Waukesha, WI - Lennox air conditioner repair
James P. G.

James P. G.

American standard air conditioning installed

Near Red Oak Cir, Watertown, WI 53094
Watertown, WI - American standard air conditioning installed
James P. G.

James P. G.

Armstrong air conditioner repair

Near W Cold Spring Rd, Greenfield, WI 53220
Greenfield, WI - Armstrong air conditioner repair
James P. G.

James P. G.

American Standard AC install

Near Waterville Rd, Oconomowoc, WI 53066
Oconomowoc, WI - American Standard AC install
James P. G.

James P. G.

Armstrong AC Maintenance

Near N Water St, Watertown, WI 53098
Watertown, WI - Armstrong AC Maintenance
James P. G.

James P. G.

American Standard AC I natal

Near Cambridge Ct, Delafield, WI 53018
James P. G.

James P. G.

Carrier air conditioning repair

Near White Pine Rd, Delafield, WI 53018
Delafield, WI - Carrier air conditioning repair
James P. G.

James P. G.

American Standard AC install

Near Birch Rd, Delafield, WI 53018
Delafield, WI - American Standard AC install
James L. G.

James L. G.

Repair fireplace

Near Nicole Ct, Pewaukee, WI 53072
Pewaukee, WI - Repair fireplace
James P. G.

James P. G.

American Standard furnace install

Near Glen Parc Cir, Nashotah, WI 53058
Nashotah, WI - American Standard furnace install
James P. G.

James P. G.

Near Wells St, Delafield, WI 53018
Delafield, WI -
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