Hiring a contractor for home renovation or repair work is one of the biggest decisions you'll make as a homeowner. The difference between a trustworthy pro and someone who'll leave you frustrated—or worse, out thousands of dollars—often comes down to doing your homework upfront. The good news: vetting a contractor's license and reviews doesn't require special expertise. You just need to know what to look for and where to look.
Why License Verification Matters
A contractor's license isn't just a piece of paper. It's proof they've met minimum education, experience, and insurance requirements in your state. It also means they're on the hook for complaints if something goes wrong. An unlicensed contractor working on your home? That's a financial and legal risk you don't want to take.
The tricky part: requirements vary significantly by state and sometimes by county or city. A licensed electrician in Florida might not be licensed in Ohio. Always verify that a contractor is licensed for your specific location and the type of work you need.
How to Check a Contractor's License
Start with your state licensing board
Each state maintains a licensing database. Search your state's name plus "contractor licensing board" or "department of professional regulation." Most states now offer online searchable databases where you can enter a contractor's name or license number and see:
- Whether the license is currently active
- What type of work they're licensed for
- Complaint history or disciplinary actions
- License expiration date
Bookmark the real board website—scammers sometimes create fake lookup sites. Go directly through your state government domain.
Ask the contractor directly
Any legitimate contractor will have their license number memorized or readily available. If they hesitate or give you vague answers, that's a red flag. Ask them to show you their physical license and write down the number. This takes 30 seconds and eliminates a lot of risk.
Verify insurance, not just licensing
A current license doesn't guarantee they have insurance. Ask for proof of general liability and workers' compensation insurance. Ask them to have their insurance agent send you a certificate of insurance directly—not a copy the contractor hands you. Insurance lapse is the #1 way homeowners get stuck paying for accidents on their property.
Reading Reviews: What to Trust and What to Question
Where to look for real reviews
Multiple sources give you better insight than any single platform. Check:
- Google Business — Hard to fake because reviews are tied to verified customer accounts
- Yelp — Filters obvious spam; shows how the business responds to complaints
- Better Business Bureau (BBB) — Shows complaint resolution and accreditation status
- Home Depot and Lowe's — If they're listed as service providers
- Angie's List — Requires verified customer histories (now part of ANGI Homeservices)
Look for consistency across platforms. A contractor with 4.8 stars on Google but zero reviews elsewhere might be too new to trust with major work—or the good reviews might be inflated.
Spot fake or suspicious reviews
Fake reviews follow patterns. Watch out for:
- Generic praise — "Great work!" with no details about the actual job, timeline, or price
- Sudden clusters — Five glowing reviews posted within a week after months of silence
- Competitor bashing — Reviews that attack other contractors instead of describing their own work
- No customer name or photo — Legitimate reviewers usually have profiles
- Identical phrasing — Multiple reviews using the same language or structure
Read negative reviews carefully
A contractor with zero bad reviews is suspicious. What matters is how they respond to complaints. Do they offer to fix problems? Do they explain themselves professionally? Or do they get defensive and dismiss unhappy customers? Their response tells you a lot about how they'll treat you if something goes wrong.
Ask the Right Questions
License and reviews are just the start. Before you hire, ask:
- "Can you provide references from jobs you completed in the last year?" (Then actually call them.)
- "Do you get permits for this type of work?" (The answer should usually be yes.)
- "How do you handle changes or unexpected problems during the job?"
- "What's your payment schedule?" (Avoid paying 100% upfront.)
- "Do you guarantee your work?" (Ask for the guarantee in writing.)
Put It All Together
A contractor with an active license, positive reviews across multiple platforms, responsive communication, and solid references is worth hiring. If you'd rather save time, you can also find a vetted general contractor on Handyman.com, where many providers have already been screened.
The 30 minutes you spend verifying a license and reading reviews could save you thousands in headaches. It's the simplest insurance policy you'll ever take out.
