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Grenz Service Company, LLC

★★★★★ 5 stars
Call Now:
(262) 646-3880

Address

250 W. Main Street
Delafield, WI 53018

Hours

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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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!

License Number: 3668

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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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 158 customer reviews

Map of Neosho, WI 53059

Excellent experience beginning to completion




Review of Grenz Service Company, LLC

On time, on budget, helpful, competent, efficient. Clearly a cut above.

NeoshoWI53059 43.28-88.5175

Map of Oconomowoc, WI 53066

Great service, very efficient!! Great guy!!




Review of Grenz Service Company, LLC

Excellent service!!

OconomowocWI53066 43.11-88.485

Map of Ixonia, WI 53036

Great & Quick Service




Review of Grenz Service Company, LLC

We had our igniter go out in the middle of the night on a -14 degree day. Our house got very cold and I called Jim first thing in the morning and he was out right away fixing the issue. Would definitely use Jim again and highly recommend him.

IxoniaWI53036 43.145-88.5875

Map of Pewaukee, WI 53072

Polite, responsive service




Review of Grenz Service Company, LLC

PewaukeeWI53072 43.065-88.27

Map of Delafield, WI 53018

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.

DelafieldWI53018 43.06-88.4125

Map of Waukesha, WI 53189

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.

WaukeshaWI53189 42.9775-88.2475

Map of Hartland, WI 53029

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.

HartlandWI53029 43.1375-88.4

Map of Waukesha, WI 53189

Great Service




Review of Grenz Service Company, LLC

WaukeshaWI53189 42.92-88.2225

Map of Oconomowoc, WI 53066

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.

OconomowocWI53066 43.1225-88.4675

Map of Waukesha, WI 53188

VERY KNOWLEDGEABLE, HIGH QUALITY SERVICEJim




Review of Grenz Service Company, LLC

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

WaukeshaWI53188 43.045-88.2275

Great service




Review of Grenz Service Company, LLC

Great company!

DelafieldWI53018 43.0625-88.4225

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

DelafieldWI53018 43.0675-88.4175

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.

DelafieldWI53018 43.06-88.4

FANTASTIC SERVICE




Review of Grenz Service Company, LLC

OconomowocWI53066 43.1275-88.475

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.

OconomowocWI53066 43.0575-88.425

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

BrookfieldWI53045 43.07-88.135

Great Timely Service.




Review of Grenz Service Company, LLC

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

WaukeshaWI53186 42.995-88.23

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.

IxoniaWI53036 43.145-88.585

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.

IxoniaWI53036 43.145-88.585

Outstanding service




Review of Grenz Service Company, LLC

JeffersonWI53549 43.035-88.765

Review




Review of Grenz Service Company, LLC

BrookfieldWI53045 43.0525-88.1325

Fast and efficient service.




Review of Grenz Service Company, LLC

OconomowocWI53066 43.11-88.4425

Great service/immediate help




Review of Grenz Service Company, LLC

DelafieldWI53018 43.075-88.4125

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!

OconomowocWI53066 43.2125-88.515

Very professional service




Review of Grenz Service Company, LLC

Thorough

WaukeshaWI53188 42.9925-88.375

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AC repair

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Compressor replacement

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American standard system install

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Carrier furnace repair

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Carrier furnace repair

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True cooler repair

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Goodman furnace repair

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