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!
On time, on budget, helpful, competent, efficient. Clearly a cut above.
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.
Jim installed a new remote system for my gas fireplace. He was quick, knowledgeable and very friendly. I highly recommend Grenz.
Professional, fast, thorough, and accurate! I highly recommend them for your fireplace servicing. Very knowledgable and efficient.
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.
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.
Jim answers the phone, gets back to you when promised.
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
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.
I really appreciated the technicians honesty and accurate diagnostic skills. The work was done quickly and I now have heat again.
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
Furnace went out overnight. Jim gas it fixed by noon.
Prompt- professional- very courteous- explained what was wrong- and what he was going to do to fix the problem.
Prompt- professional- very courteous - explained what was wrongs done what he was doing to fix the problem.
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!
Install unit heater
Unit heater install
American Standard AC install