Oconomowoc, WI
- HVAC contractor
- Address
- 111 South Main Street, 53066
- Phone
- +1-262-355-4995
- Website
- aasenheating.com
In Oconomowoc, Wisconsin, Sterling Mainz & Sons is listed as a plumbing contractor.
According to its website, it was founded in 1927.
Its office is at 114 South Main Street, Oconomowoc, WI 53066. Call Sterling Mainz & Sons at +1-262-567-4478. Its website is mainzplumbingandpumps.com.
Sterling Mainz & Sons is one of 5 construction companies we list in Oconomowoc. Before you hire any contractor in Wisconsin, check the license with the Wisconsin Department of Safety and Professional Services.
We are a family-run company, serving the Oconomowoc area for over 60 years. Offering 3rd generation master plumbers, we have over 100 years of combined plumbing experience. This lets us fix nearly anything right the first time.
In the company's own words, from mainzplumbingandpumps.com, read November 2026.
Sterling Mainz & Sons is at 114 South Main Street, Oconomowoc, WI 53066.
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Search the Wisconsin Department of Safety and Professional Services for Sterling Mainz & Sons before you hire. We do not hold license records for individual companies. Wisconsin requires a Dwelling Contractor credential for residential building. There is no state commercial general contractor license.
Check a license in WisconsinLicensing rules checked October 2026. Requirements change, so confirm on the state site.
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The nearest listed company is Aasen Heating & Cooling, about 0 miles away in Oconomowoc, WI.
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We list 5 construction companies in Oconomowoc. Here are 4 more.
Sterling Mainz & Sons is at 114 South Main Street, Oconomowoc, WI 53066.
Sterling Mainz & Sons is listed as a plumbing contractor in Oconomowoc, Wisconsin.
On mainzplumbingandpumps.com, Sterling Mainz & Sons describes itself like this: "We are a family-run company, serving the Oconomowoc area for over 60 years. Offering 3rd generation master plumbers, we have over 100 years of combined plumbing experience. This lets us fix nearly anything right the first time."
Call +1-262-567-4478. Visit mainzplumbingandpumps.com. The office is at 114 South Main Street, Oconomowoc, WI 53066.
We do not hold license records for individual companies. Wisconsin requires a Dwelling Contractor credential for residential building. There is no state commercial general contractor license. Search the Wisconsin Department of Safety and Professional Services to check a contractor before you hire.
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