"Cold Steel" by Terry Johnston // CC BY 2.0

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BZ SCORE: 92

Verified License

Martin, Keith William

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BZ SCORE: 92

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Best Plumbers in Greendale

Updated: Apr 02, 2026

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Verified License

License #	224045-PM
Status	Active
State	Wisconsin
Type	Plumber

BuildZoom verified this license was active as of April 2026.

Verify this license's status for Martin, Keith William at the Wisconsin Department of Safety and Professional Services.

This is a sample of licensing data; click here to access a complete history.

Inactive License

License #	224045
Status	Inactive
State	Wisconsin
Type	Cross Connection Control Tester

According to the Wisconsin Department of Safety and Professional Services, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.

Check this license's status for Martin, Keith William at the Wisconsin Department of Safety and Professional Services.

This is a sample of licensing data; click here to access a complete history.

Inactive License

License #	224045-PJ
Status	Inactive
State	Wisconsin

According to the Wisconsin Department of Safety and Professional Services, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.

Check this license's status for Martin, Keith William at the Wisconsin Department of Safety and Professional Services.

This is a sample of licensing data; click here to access a complete history.

92

BuildZoom Score

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Before you Hire

Here are some rules, regulations, and laws governing general contractors in Wisconsin:

Does Martin, Keith William carry a valid contracting license?

All residential and commercial construction in Wisconsin requires a licensed contractor.

Martin, Keith William currently holds license 224045-PM, 224045, 224045-PJ (Plumber, Cross Connection Control Tester), which was Active when we last checked.

Your liability risk when hiring Martin, Keith William

Licensed contractors in Wisconsin must carry both general liability and workers' compensation insurance, request a copy of current insurance certificates for each.

Financial recourse when hiring Martin, Keith William

Licensed contractors in Wisconsin are required to obtain a surety bond.In the event of losses or damages incurred during a construction project,a homeowner can file a claim against a contractors bond.

How is the BuildZoom score calculated?

The BuildZoom score is based on a number of factors including the contractor's license status, insurance status, verified work history, standing with local consumer interest groups, verified reviews from other BuildZoom users and self-reported feedback from the contractor.

Why you should hire through BuildZoom

When it comes to major construction work or even minor alterations to your home, hiring the wrong contractor could result in incomplete or defective work. You may even find yourself dealing with huge liability claims. BuildZoom does the homework for you and helps you hire the right contractor.

You should get several bids before hiring a contractor

Before hiring a contractor in Wisconsin, be sure to get at least 3 detailed bids. Quality contractors will take the time to explain their budget proposal,and help guide you through the estimate process. Be wary of an abnormally low bid, they are not worth the risk. These underpriced projects often do not end well for the homeowner, choose a contractor you trust and can clearly communicate with. BuildZoom has made the bid collection process extremely simple (and free). Just click here to get started.

The best way to use BuildZoom is to let us recommend contractors for your remodeling projects.

Homeowners who hire through BuildZoom's free bidding system report high rates of satisfaction, and homeowners who research contractors online are twice as likely to be happy at the end of their project.

If you hire a contractor through BuildZoom, that contractor is accountable to us. We can enforce standards of behavior, mediate disputes, and guarantee satisfaction.

Read more about why hiring through BuildZoom is so effective.

BuildZoom’s database now contains every licensed contractor across the U.S. - over 2.5 million of them... Categorized contractor profiles are enriched using government data from state licensing boards, Better Business Bureau ratings, and more… BuildZoom jumped into the fray by announcing that it raised $10.6 million in a round led by Formation 8. ...the Y combinator-backed startup said it will be focused on remodeling projects, where the median budget is around $19,000… A new index compiled by BuildZoom — which identifies contractors for projects — found that renovations are running 2.8 percent above their 2005 level…

Browse remodeling photos

If you are looking for remodeling ideas, you can browse hundreds of beautiful photos of work performed by our general contractors.

Browse building permits

You can use our building permit search to see the contractors who are active in your neighborhood and the projects currently taking place.

Get a cost estimate

Use our remodeling calculator to get a ballpark estimate for your project. If you're ready to hire, use our bidding system to get actual quotes from local contractors.