"Rolleiflex" by Adam Singer // CC BY 2.0

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Mount Vernon, OH

Emil A. Diener

this is my business

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Updated: Jan 13, 2026

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License Not Verified

License #	LA.8100438
Status	Active
State	Ohio
Type	Landscape Architect

When BuildZoom last verified this license, it had an expiration date of December, 2018. Check the current license status of Emil A. Diener with the Ohio Architects Board

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

Inactive License

License #	LA.8100438
Status	Inactive
State	Ohio
Type	Landscape Architect

According to the Ohio Architects Board, 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 Emil A. Diener at the Ohio Architects Board.

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

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*No active license on file. If you are Emil A. Diener, click “This is My Business” to update your information.

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Before you Hire

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

Does Emil A. Diener 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.

Emil A. Diener currently holds license LA.8100438 (Landscape Architect), which was Inactive when we last checked.

How important is contractor licensing in Ohio?

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 Emil A. Diener

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 Emil A. Diener

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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