
It is essential to verify a plumber's insurance and license to protect yourself from financial and legal liabilities. While it may be tempting to hire an unlicensed plumber to save money, it can be a costly mistake if their work is subpar or incomplete. Licensed plumbers are experienced and can identify issues before they worsen, ensuring your home remains a safe place for you and your family. To check a plumber's insurance and license, you can ask them directly to show their license, or you can verify their credentials through your state's license board, local government websites, or third-party websites that provide contractor license and insurance information.
| Characteristics | Values |
|---|---|
| Ask the plumber | They should be able to show you their license. If they refuse, consider it a red flag and hire a different plumber. |
| Check their website | Their website may also display their license, qualifications, and testimonials. |
| Ask friends and family for recommendations | Friends and family can provide first-hand information about a plumber's work. |
| Check reviews | Reviews can give you an idea of the plumber's work and whether they are licensed. |
| Verify license through the state license board | Each state has its own set of regulations, and you can check the license status of plumbers through the state license board. |
| Verify insurance | Ask for proof of insurance, such as a certificate, and then call the provider to ensure the policy is up to date. |
| Verify surety bond | Ask for the certification and bond number before signing a contract. |
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What You'll Learn

Ask the plumber to see their license
Asking the plumber to see their license is a quick and easy way to verify their qualifications. Most plumbers carry their state license with them, so they should be more than happy to show it to you. If they refuse to show you their license, this is a red flag, and you should consider looking elsewhere.
A plumbing license is not the same as a business license, and plumbers are also required to have insurance. A license means that the plumber has registered with the relevant agency and holds a minimum amount of bonding or insurance. This is important because it protects you if the plumber fails to complete the job, doesn't pay for permits, or pay their subcontractors. If this happens, you could be left with the bill.
You can also check the plumber's website for their license, qualifications, and testimonials. If they display recent certifications, this is a good indicator that they are licensed and up-to-date with their training. You can also check with your state's licensing board to verify the license. Some states require thousands of hours of training as an apprentice, and nearly all states require the completion of specialized exams.
In some places, like New York City, you can use an online tool to check the license status of a plumber. You can also verify that they have the proper insurance in place. Hiring an uninsured contractor can be just as devastating as hiring an unlicensed one.
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Check the plumber's website
Checking a plumber's website is a good first step to finding out whether they are insured and licensed. While not every plumber will have a website, it is common practice to have one or some form of a social media presence. If they do have a website, you should be able to find information on their qualifications and certifications there.
A plumber's website should ideally list their license and insurance details. They may also mention the surety bond they hold, which is an added benefit. If the plumber is licensed and insured, they will proudly display this information, along with any other qualifications they have. A quick look at their website should give you an idea of their experience and expertise.
If you cannot find the information you are looking for on their website, do not hesitate to ask the plumber directly. A reputable plumber should be happy to provide you with evidence of their licensure and insurance. They may have this information readily available in the form of a certificate or document that they can email or send to you.
Once you have the necessary information, you can verify the plumber's license and insurance status. You can do this by contacting your local licensing department or your state's Department of Labor. You can also use online tools, such as Angi's licensing tool, which allows you to verify credentials by selecting your state and the contractor's profession. Additionally, you can check with your state's licensing board website or use resources like PHCEid.org, which advocates for licensed contractors in the plumbing industry.
While checking a plumber's website is a good starting point, it is always worth verifying their information through official channels and reviewing other sources of information, such as customer reviews and personal referrals.
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Verify with your state's license board
While hiring a plumber, it is essential to verify their credentials, including insurance and licensing. This verification process ensures that you are protected from potential liabilities and that the plumber has the necessary coverage in case of any job site injuries or incidents. Here are some detailed steps to guide you through the process of verifying a plumber's insurance and licensing status with your state's licensing board:
- Identify the Licensing Authority: Plumbing licenses are typically regulated by state or local authorities. Identify the specific licensing authority for your state or locality. This could be a department or board responsible for licensing and regulating contractors or tradespeople.
- Online License Verification: Many licensing boards maintain online databases or portals where you can verify a plumber's license. Search for your state or locality's official website dedicated to professional licensing. These websites often provide license lookup tools or directories where you can search for licensed plumbers by name, business name, or license number.
- Contact the Licensing Board: If you cannot find the information online or need further assistance, contact the licensing board directly. You can usually find their contact information, including phone numbers and email addresses, on the official website. They can guide you through the process of verifying a plumber's license and insurance status.
- License Display Requirements: Some states or localities have specific requirements for displaying licenses. For example, a plumber may be required to display their license number on their website, business card, or even their vehicle. Understanding these requirements can help you identify licensed plumbers more easily.
- Insurance Information: When verifying a plumber's license, also pay attention to insurance information. Licensed plumbers are typically required to maintain certain types of insurance, such as workers' compensation insurance and general liability insurance. The licensing board can provide information on whether the plumber has the necessary insurance coverage.
- License Status and Disciplinary History: In addition to verifying the license, check the status and any disciplinary actions. The licensing board can inform you if the plumber's license is currently active, expired, or if there have been any complaints or disciplinary actions against them. This information can help you make an informed decision.
Remember, the specific process and requirements may vary depending on your location. Always refer to your state or local licensing authority for the most accurate and up-to-date information. Taking the time to verify a plumber's insurance and licensing status protects you and ensures that you are hiring a reputable and qualified professional.
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Request proof of liability insurance
It is fairly common for customers to ask contractors for proof of insurance coverage before starting on a project. This is because hiring an uninsured contractor can be just as devastating as hiring an unlicensed one. Asking for a Certificate of Insurance (COI) should not be an issue for the contractor, and it is your right to request this information.
You can ask for a "Certificate of Liability Insurance", and the contractor's insurance agent should send you the certificate directly (electronically). You should be named on the certificate, and it should be dated. Do not accept a blank or general certificate from the contractor. If the contractor is insured, their insurance agent will issue a signed and dated certificate showing that they are currently insured to do the type of job you require.
If you are unsure about the validity of the certificate, you can call the contractor's insurance agent to verify. You can also check the contractor's license status and insurance information through your local government website. For example, in NYC, you can check the license status for any NYC DOB-licensed plumber and verify that they have the proper insurance.
Remember, it is essential to ensure that the contractor has the correct type and amount of insurance coverage. This may include general liability insurance, commercial auto insurance, worker's compensation insurance, and coverage for equipment and tools used on the job. This will protect you from any unexpected liabilities that may arise during the project.
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Check for recent certifications
Checking a plumber's certifications is a great way to ensure they are licensed, insured, and capable of performing the work you require. While the requirements and types of certifications vary by state, there are some general guidelines and best practices to follow when verifying a plumber's credentials. Here are some tips to help you check for recent certifications:
Check Their Website and Social Media:
Start by visiting the plumber's website or social media pages. Many plumbers will display their certifications, qualifications, and licenses on their websites. Look for any mentions of recent training, specialized certifications, or updates to their licenses. This can give you a good initial indication of their qualifications.
Verify with State and Local Licensing Boards:
Each state has its own licensing requirements and governing bodies. To ensure your plumber is certified to work in your state, check with your state's license board. You can usually search for licensed plumbers by name, license number, or the city/town they are licensed in. Additionally, remember to check with local governing bodies, as some locations have specific local requirements in addition to state-level certifications.
Understand the Different Certification Levels:
Plumbing certifications in the US typically follow a progression, including apprentice, journeyman, and master plumber licenses. The requirements for each level vary by state but generally involve a combination of supervised work experience, apprenticeship programs, and passing licensing exams. Understanding these different levels will help you gauge the plumber's level of expertise and specialization.
Look for Specialized Certifications:
In addition to standard plumbing licenses, some plumbers obtain specialized certifications. For example, in Texas, plumbers can obtain endorsements in areas like Medical Gas Piping Installation, Multipurpose Residential Fire Protection, or Backflow Assembly Testing. If your plumbing work requires specific expertise, ensure your plumber has the necessary specialized certifications.
Ask for Proof of Certification:
Don't hesitate to ask your plumber to provide proof of their certifications and licenses. Reputable plumbers should be more than willing to share this information with you. Ask to see copies of their business license and plumbing license, and any relevant specialized certifications. This ensures that their credentials are up-to-date and applicable to the work you need to be done.
Remember, by taking the time to verify a plumber's certifications, you can have peace of mind knowing that they are qualified, licensed, and insured to perform the work safely and effectively.
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Frequently asked questions
You can ask your plumber to see their insurance certificate and then call the provider to check that the policy is up to date. You can also check with your state's licensing board website or use online tools such as Billy.com, which provides information on contractor licenses and insurance.
An insured plumber will provide financial protection in the event of damages to your property or injuries sustained on the job.
In addition to insurance, it is important to check that your plumber has a valid license. You can do this by asking the plumber to see their license, checking their website, or verifying with your state's license board.
Hiring an unlicensed plumber can be costly in the long run if their mistakes need to be fixed. An unlicensed plumber may also not be up-to-date on building codes, which could result in safety hazards for you and your family.











































