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John J Darnall

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Best HVAC/Mechanical Contractors in Murray

Updated: May 18, 2026

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License Not Verified

License #	HJ09719
Status	Active
State	Kentucky

When BuildZoom last verified this license, it had an expiration date of May, 2016. Check the current license status of John J Darnall with the Kentucky Department of Housing, Buildings & Construction

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

Inactive License

License #	HM04771
Status	Inactive
State	Kentucky
Type	Hvac Contractor

According to the Kentucky Department of Housing, Buildings & Construction, 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 John J Darnall at the Kentucky Department of Housing, Buildings & Construction.

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

Inactive License

License #	HM04771
Status	Inactive
State	Kentucky
Type	Hvac

According to the Kentucky Department of Housing, Buildings & Construction, 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 John J Darnall at the Kentucky Department of Housing, Buildings & Construction.

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 John J Darnall, 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 Kentucky:

Does John J Darnall carry a valid contracting license?

Although the state of Kentucky does not require contractors to be licensed, local jurisdictions may have stricter regulations governing licensing.

John J Darnall currently holds license Hj09719, HM04771 (Hvac Contractor, Hvac), which was Inactive when we last checked.

Your liability risk when hiring John J Darnall

Kentucky does not require contractors to carry general liability or workers' compensation insurance. Regardless, it is advisable to hire contractors with active policies for both forms of insurance. Be sure to request a copy of the insurance certificates for your records.

Financial recourse when hiring John J Darnall

Kentucky does not require contractors to obtain a surety bond. Homeowners can file complaints with the Kentucky Office of the Attorney General's Consumer Protection department.

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 Kentucky, 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.

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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.