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25 Years In Business

Company Details

  • Verified Licenses

Contact

10248 North Greenview Drive
Mequon, WI 53092

Hours

  • Mon: Open 24 Hours
  • Tue: Open 24 Hours
  • Wed: Open 24 Hours
  • Thu: Open 24 Hours
  • Fri: Open 24 Hours
  • Sat: Open 24 Hours
  • Sun: Open 24 Hours
View All Details & Credentials

Achievements

Service Details

  • Residential Work
  • Commercial Work
  • Small Jobs Welcome

Areas of Expertise

  • Remodeling and restore
  • water damage restoration
  • Fire damage
  • Retaining walls
  • General remodeling service
View All Offerings and Cities Served

Cost Information

  • Free Estimates
  • Warranty Offered
  • Credit Cards Accepted

Ratings

5.0
67 Verified Reviews
  • 5
    64
  • 4
    0
  • 3
    0
  • 2
    0
  • 1
    0

Highly rated for

  • Overall Rating
  • Value
  • Customer Service
  • Quality
Showing 1-10 of 67 results
5.0 Anne T. Milwaukee, WI
10/8/2025

I can't say enough about Steve and Adam. I felt completely at ease with them. They did a great job, let me know what they were doing every step of the way, and fixed even more when they found issues (which are always there) and honored the original contract. I will definitely hire them again in the future.

5.0 Tom S. Milwaukee, WI
3/11/2025

Steve and Adam completely remodled our garage. They also removed a tree and stump that was undermining the garage foundation. They were very open and honest when a few glitches came up. The work they did is outstanding, and I would highly recommend them!

5.0 Robin S. Milwaukee, WI
1/31/2022

Fantastic workers. Adam and Steve are professional, skilled, neat and extremely personable. I can not recommend them highly enough. I am very pleased with their work.

5.0 Jon P. Milwaukee, WI
9/17/2021

I worked with Steven and Adam from Guardian R&R and my experience was unequivocally exceptional. Guardian makes sure that the job is done right the first time, every time. They keep the customer engaged every step of the way and involved in the process. They’re willing to do what it takes to make the customer happy. In my case, I contacted Guardian to take over home restoration needed after a burst pipe in the late winter of 2021. The damage was EXTENSIVE. The water abatement company left A LOT of material in place that should have been removed which was 100% saturated (including drywall) and those materials became mold growth sources. Guardian not only removed all the material that the previous contractor failed to remove, but they sprayed mold preventative through the entire basement after removal of the material. Unfortunately my insurance company’s preferred restoration contractor was essentially completely unresponsive and the restoration process came to a complete stand still for about 7 months. On the advice of my insurance representative I contacted other restoration contractors. Guardian was the top choice and they completely exceeded all my expectations. They took a process that I was afraid would never get completed and finished it in just a few weeks. Guardian was incredibly helpful in working with the insurance claims adjuster and they were able to make sure that I was able to get everything I was entitled to for restoration of the home. The professionals with Guardian are incredibly detail oriented. Since my basement was under about two feet of standing water, Guardian was able to get a new high efficiency furnace, a new water heater, and new washer and dryer. Guardian completely transformed my house and made it in to a home. Guardian worked with me to make sure that the project was completed the way I wanted. I can honestly say that if you don’t hire Guardian for your next project that you’re doing yourself a disservice. If you hire Guardian, you’ll never regret the decision!

5.0 Alice S. Mequon, WI
6/16/2021

Steve is a good listener and followed through with our agreed on plan. His workmanship is one of a craftsman: precise and elegant. Our project involved building on an old foundation which needed repair work and strengthening, which he did, before proceeding. The end result was just what we had hoped for. We are very glad that Steve and his son Adam took on this project which met all our expectations.

5.0 Carolina L. Menomonee Falls, WI
4/27/2021

Steve and Adam Peterson did a great job of explaining what needed to be done and did the job with a great attitude. It turned out to be more difficult than anticipated, but they assured me that they wouldn't stop until the job was done. BTW, they worked 12 days straight until it was done! They are polite, honest and dependable. I will call on them again in the future!

5.0 Austin L. Milwaukee, WI
4/2/2021

They did a good job.

5.0 Jeff K. Franklin, WI
1/13/2021

I needed heat before my pipes would freeze. He came out right when I called gave a great quoted price on the spot and came next day to get the job done. Can't say enough. Very happen. Stopped back couple days later to make sure everything was working to my expectations

5.0 Nick D. Englewood, FL
11/21/2020

Good guys honest. Knowledgeable

5.0 Ross S. Milwaukee, WI
10/31/2020

The owner of Guardian Heating and Cooling, LLC (Steve Peterson) and one of his sons (Adam) did an AWESOME job installing a new, high-efficiency, gas-fired Laars combi-boiler at my residence! If the new unit continues to perform as well as it is presently, and Guardian service continues to be this excellent in the years ahead, I will be a happy camper and pat myself on the back for having been smart enough to hire them. :-) The unit they replaced was built by a highly-regarded manufacturer that had been installed by another highly regarded contractor by the previous owners of my home. As it turned out, the previous heating unit was a money pit and the previous contractors technical abilities left much to be desired. Each heating season, the previous boiler experienced one significant failure after another. The previous contractor kept changing parts without digging into **why** the parts were failing. They simply said I should accept this, since the unit was **old**. Unhappy with this response, I decided to cut my losses. To the rescue: Guardian Heating and Cooling! While not the least expensive contractor, Steve, and Son exceeded my expectations simply by meeting them! They arrived one time and did everything they said they were going to do. With unseasonably cold weather in October, I was initially a bit apprehensive at the prospect of having no heat for a few days while a replacement system was installed. I wondered if they would be able to complete this project in a timely manner, as they said they would. My worries were for naught. There were no surprises and no surprise expenses ... no nickle-and-diming when Guardian needed an extra part or fitting ... no drama. Guardian simply got the job done. And they did it beautifully. They took care to minimize the time I would be without water and without heat. After installation, they thoroughly tested the unit. The next day, they checked back to ensure that I was satisfied with its performance. They also cleaned up reasonably when they were done and were carefully not to damage my property, as they moved large, heavy pieces of equipment and tools around. In summary: a big Thumbs Up for Guardian heating and Cooling, LLC!

Photos

Guardian R&R, LLC
3
Boat House
2
Retaining Wall
4
Bathroom remodel
4
New garage
3
Paver patio
3
Master bathroom
3
Remodel bathroom
4
Bathroom installation
5
Bathroom remodel

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