Before you hire: The pre-visit checks worth doing
How to check contractor credentials
If you're wondering how to verify a service worker, start by confirming their credentials.
Licensing requirements vary by trade and state. Many states maintain online licensing databases for contractors, electricians, plumbers, HVAC technicians, and other regulated trades. Checking the official licensing board is often more reliable than relying solely on a company website.
A quick search can tell you whether a license is active, expired, suspended, or associated with complaints.
How do I check if a contractor is licensed?
In most states, you can visit the appropriate licensing board website and search by the contractor's name, company name, or license number.
Before scheduling work:
- Ask for the contractor's license number.
- Look up the license through your state's licensing database.
- Confirm the license is active and in good standing.
- Verify the license matches the company you plan to hire.
A legitimate professional should have no problem providing this information.
A license doesn't guarantee great work, but it does tell you the person has met your state's requirements to perform that type of work.
Check reviews in more than one place
Reviews are most useful when you compare feedback across multiple platforms.
A company may have excellent ratings on one site while receiving complaints elsewhere. Looking at several sources helps create a more complete picture.
Good places to check include:
- Google Reviews
- Yelp
- The Better Business Bureau (BBB)
- Local neighborhood groups
- Community recommendation boards
Recent reviews are often more helpful than older ones because they reflect the company's current management, staffing, and service quality.
Pay attention to patterns. Almost every business receives an occasional negative review, but do the same concerns keep coming up? Are there multiple mentions of issues like lateness, unexpected charges, poor communication, or unfinished work? That's often a sign to consider another company instead.
Ask for proof of insurance
If you're wondering how to verify a service worker professionally, insurance documentation is another important signal. Reputable contractors typically carry liability insurance and can provide proof upon request. Insurance protects both the worker and the homeowner if property damage or accidents occur during the job.
You don't need to become an insurance expert. Simply ask for proof of coverage and verify that it appears current and issued to the company or contractor you're hiring. If a contractor seems annoyed by the request, consider that a red flag. Established professionals are happy to accommodate homeowners asking for proof of insurance.
Request references for workers with repeat access
If someone will have ongoing access to your home, such as a house cleaner, pet sitter, landscaper, or maintenance professional, references become especially valuable.
Ask for recent clients and spend a few minutes making a phone call.
Here are some questions worth asking:
- Was the worker reliable?
- Did they communicate well?
- Were there any concerns about access to the home?
- Would you hire them again?
A five-minute phone call can reveal details that never make it into online reviews.
Don't underestimate referrals
Friends, family members, neighbors, and coworkers remain some of the most reliable sources for home-service recommendations. A trusted referral doesn't replace credential checks, but it does provide an extra layer of confidence because the recommendation comes from someone with firsthand experience.
Don't rely on a single signal
A contractor might have great reviews but no license. Another might be licensed but impossible to reach after the job is complete. Likewise, a referral might still make you uneasy when you look at their online reviews.
The strongest vetting process combines multiple signals:
- Licensing
- Reviews
- Insurance
- References
- Referrals
No single check tells the whole story.