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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 154 customer reviews

Map of Delafield, WI

Great service!




Review of Grenz Service Company, LLC

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


Map of Waukesha, WI

Awesome Service!




Review of Grenz Service Company, LLC

Professional, fast, thorough, and accurate! I highly recommend them for your fireplace servicing. Very knowledgable and efficient.


Map of Hartland, WI

Exceptional Service




Review of Grenz Service Company, LLC

Jim came out to tune up our 2 gas fireplaces yesterday. The service exceeded my expectations—found a small gas leak (yikes) & addressed it, replaced the starter (part was free) and Jim graciously shared is knowledge to help me maintain the fireplaces for the future. I definitely recommend Grenz Service.


Map of Waukesha, WI

Great Service




Review of Grenz Service Company, LLC


Map of Oconomowoc, WI

First time customer




Review of Grenz Service Company, LLC

I had my gas fireplace inspected and my furnace checked for the winter season. Jim and Bill were polite, skilled and did an excellent job. Bill caught a wiring issue on my humidifier that was not done correctly by the installer and never caught by the other company I had been using for my maintenance. I feel confident in getting a maintenance contract.


Map of Waukesha, WI

VERY KNOWLEDGEABLE, HIGH QUALITY SERVICEJim




Review of Grenz Service Company, LLC

Jim answers the phone, gets back to you when promised.


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


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.


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


Great Timely Service.




Review of Grenz Service Company, LLC

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


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.


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.


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


James P. G.

James P. G.

Rheem heat repair

Near Christopher Ct, Oconomowoc, WI 53066
Oconomowoc, WI - Rheem heat repair
James P. G.

James P. G.

Lennox furnace repair

Near Huntington Rd, Delafield, WI 53018
Delafield, WI - Lennox furnace repair
James L. G.

James L. G.

Repair IPI controls on fireplace.

Near Club Ct, Hartland, WI 53029
Hartland, WI - Repair IPI controls on fireplace.
James L. G.

James L. G.

Repair fireplace.

Near Goldfinch Way, Oconomowoc, WI 53066
Oconomowoc, WI - Repair fireplace.
James L. G.

James L. G.

Service gas fireplace.

Near Highland Ct, Pewaukee, WI 53072
Pewaukee, WI - Service gas fireplace.
James L. G.

James L. G.

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

Near Country Ct, Delafield, WI 53018
Delafield, WI - Service fireplace, install new remote control system and new fan automatic operation system with speed control.
James L. G.

James L. G.

Repair fireplace with pilot problem.

Near Mallard Pointe Cir, Waukesha, WI 53189
Waukesha, WI - Repair fireplace with pilot problem.
James P. G.

James P. G.

Near Fieldstone Rd, Delafield, WI 53018
Delafield, WI -
James P. G.

James P. G.

American standard system install

Near Fernwood Ct, Waukesha, WI 53189
Waukesha, WI - American standard system install
James L. G.

James L. G.

Inspect and tuneup 2 fireplaces

Near Forest Dr, Hartland, WI 53029
Hartland, WI - Inspect and tuneup 2 fireplaces
James L. G.

James L. G.

Repair fireplace and test

Near Circle Ridge, Delafield, WI 53018
Delafield, WI - Repair fireplace and test
James L. G.

James L. G.

Repair fireplace.

Near Westfield Way, Pewaukee, WI 53072
Pewaukee, WI - Repair fireplace.
James P. G.

James P. G.

American Standard System Install

Near Thomas Rd, Wales, WI 53183
Wales, WI - American Standard System Install
James L. G.

James L. G.

Replace floor valve on gas logs fireplace.

Near S 81st St, Franklin, WI 53132
Franklin, WI - Replace floor valve on gas logs fireplace.
James L. G.

James L. G.

Service fireplace.

Near Ann Marie Way, Oconomowoc, WI 53066
Oconomowoc, WI - Service fireplace.
James P. G.

James P. G.

York ac service

Near Coldwater Creek Dr, Waukesha, WI 53188
James P. G.

James P. G.

American standard system install

Near Broken Hill Cir N, Pewaukee, WI 53072
Pewaukee, WI - American standard system install
James P. G.

James P. G.

Ductwork modification

Near Mark Trail, Waukesha, WI 53189
James P. G.

James P. G.

American standard system install

Near River Ln, Waukesha, WI 53188
Waukesha, WI - American standard system install
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
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