Skip to content

Sterling Mainz & Sons

In Oconomowoc, Wisconsin, Sterling Mainz & Sons is listed as a plumbing contractor.

  • Plumbing contractor

Who is Sterling Mainz & Sons?

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.

What does Sterling Mainz & Sons say about its work?

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.

Where is Sterling Mainz & Sons located?

Sterling Mainz & Sons is at 114 South Main Street, Oconomowoc, WI 53066.

Map © OpenStreetMap contributorsView larger map

How do I check Sterling Mainz & Sons's contractor license?

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 Wisconsin

Licensing rules checked October 2026. Requirements change, so confirm on the state site.

Run a business like Sterling Mainz & Sons? See our plumber website design and construction website design services.

Which construction companies are near Sterling Mainz & Sons?

The nearest listed company is Aasen Heating & Cooling, about 0 miles away in Oconomowoc, WI.

What other construction companies are in Oconomowoc?

We list 5 construction companies in Oconomowoc. Here are 4 more.

All construction companies in Oconomowoc
FAQ

Sterling Mainz & Sons: FAQs

Where is Sterling Mainz & Sons located?

Sterling Mainz & Sons is at 114 South Main Street, Oconomowoc, WI 53066.

What kind of company is Sterling Mainz & Sons?

Sterling Mainz & Sons is listed as a plumbing contractor in Oconomowoc, Wisconsin.

What does Sterling Mainz & Sons say about its work?

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."

How do I contact Sterling Mainz & Sons?

Call +1-262-567-4478. Visit mainzplumbingandpumps.com. The office is at 114 South Main Street, Oconomowoc, WI 53066.

Is Sterling Mainz & Sons licensed?

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.

For construction companies

Run a construction company in Oconomowoc? Get a website that wins these searches.

We design websites only for construction companies: built to rank for searches like these, with your license, projects and an estimate form up front. Fixed $2,000, live in 7 business days.

Office locations © OpenStreetMap contributors, available under the Open Database License.

Made with Modulify