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

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BZ SCORE: 90

Verified License

Greenville, OH

Darke plumbing

this is my business

BZ SCORE: 90

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Updated: Jun 06, 2026

Darke plumbing LLC

Darke plumbing LLC, 4 Ross Rd, Greenville, OH (Employee: Timothy C Knowles Knowles) holds a Plumbing Contractor license according to the Ohio Professional license board.

Their BuildZoom score of 90 indicates that they are licensed or registered but we do not have additional information about them.

Their license was verified as active when we last checked. If you are thinking of hiring Darke plumbing LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.

Recent Buildzoom Projects

Verified License

License #	PL.51660
Status	Active
City	Ohio Professional
Type	Plumbing Contractor

BuildZoom verified this license was active as of June 2026.

Verify this license's status for Darke plumbing LLC at the Ohio Professional License Center.

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

90

BuildZoom Score

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Before you Hire

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

Does Darke Plumbing Llc carry a valid contracting license?

Ohio does not require contractors to be licensed to perform residential construction. However, Ohio does require a contractor to be licensed for commercial construction.

Darke Plumbing Llc currently holds license PL.51660 (Plumbing Contractor), which was Active when we last checked.

How important is contractor licensing in Ohio Professional?

Commercial contractors must pass a trade exam and prove continuous trade experience in order to become licensed in Ohio. Continuing education is required to renew all commercial contracting licenses.

Your liability risk when hiring Darke Plumbing Llc

Commercial contractors are required to carry a general liability insurance policy. Although there is no requirement for residential construction, it is always a good idea to only hire contractors with both general liability and workers' compensation insurance. Request a current insurance certificate for both general liability and workers' compensation before any works starts.

What else should I know before hiring Darke Plumbing Llc

Commercially licensed contractors in Ohio must provide tax records for the previous 5 years to be eligible for a license.

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 Ohio, 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…

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