Bathroom remodels involve plumbing, electrical, and structural work—hiring an unqualified contractor can leave you with code violations, leaks, and expensive repairs. Before you sign a contract or hand over a deposit, you need to verify that your contractor has the right licenses, insurance coverage, and credentials to protect both the project and your home. This guide walks you through exactly what to check.
Why Licensing Matters in Bathroom Remodeling
Bathroom remodels typically require multiple trade licenses depending on the scope of work. A contractor handling tile, fixtures, and finishes might only need a general remodeling license in some states, but the moment plumbing or electrical work enters the picture, you need licensed plumbers and electricians on the job—no exceptions.
Most states require a general contractor license for projects over a certain cost threshold (usually $500–$2,000, depending on the state). Ask your contractor directly: "What is your license number?" They should provide it without hesitation. Verify it through your state's licensing board website, which typically lists the license type, expiration date, and any disciplinary history.
Some contractors work under a general contractor's umbrella license while subcontracting specialized trades. That's fine—but you still need proof that plumbers and electricians are individually licensed. A licensed plumber in Georgia, for example, holds a journeyman or master plumber license issued by the state. It's not transferable between states, so if your contractor moves, verify their current credentials in your state.
Insurance: The Three Types You Need to See
Before work begins, request copies of three insurance certificates:
- General Liability Insurance: Covers accidental damage to your home (e.g., a broken vanity, wall damage). Minimum coverage should be $1 million. This protects you if the contractor accidentally damages something beyond the bathroom.
- Workers' Compensation Insurance: Required in most states if the contractor has employees. If a worker is injured on your property and the contractor lacks this coverage, you could be liable. Verify the policy is current and active.
- Completed Operations Insurance: Sometimes called "project liability," this covers defects or damage that show up after the bathroom is finished (like a faulty plumbing connection that causes a leak six months later). Not every contractor carries it, but it's a strong sign of professionalism.
Call the insurance company directly to confirm the policy is active—don't just rely on a photocopied certificate. Many contractors submit outdated or fake insurance documents. Get the insurer's phone number from the certificate itself and verify directly.
What to Ask About Credentials & Experience
Beyond licenses and insurance, dig into specific bathroom remodeling experience:
- Ask for references: Request at least three past bathroom remodeling projects (not just kitchen remodels or deck builds). Call those homeowners and ask about timeline adherence, quality, communication, and whether punch-list items were completed.
- Check for certifications: Plumbers can hold specialty certifications (e.g., in drain cleaning or backflow prevention). Electricians might be certified in specific code compliance areas. These aren't required, but they indicate ongoing professional development.
- Verify contractor bonding: Some states require contractor bonds (a financial guarantee). Even if not required, it's another safety net. Ask if your contractor is bonded and for proof.
- Look for BBB or trade association membership: The Better Business Bureau or membership in the National Association of Home Builders (NAHB) or local bathroom remodelers' associations show accountability. These organizations have complaint resolution processes.
Red Flags to Watch For
Don't hire a contractor who:
- Refuses to provide a license number or insurance proof
- Quotes a price that's drastically lower than three other estimates (often a sign of inexperience or plan to cut corners)
- Demands full payment upfront (standard practice is 30–50% down, with the remainder due upon completion)
- Can't provide recent references for bathroom projects specifically
- Works entirely in cash and won't put terms in writing
Getting Started
Bathroom remodels typically cost $8,000–$25,000 for a mid-range refresh and $30,000–$80,000+ for high-end work. The timeline usually runs 4–8 weeks for a standard remodel. Verify credentials before the project starts—it's far easier than dealing with code violations or incomplete work down the road. Tools like Mercoly help you compare and find trusted bathroom remodeling providers in one place, making credential verification and comparison streamlined.
Frequently Asked Questions
Q: Can a general contractor handle plumbing and electrical work without separate licensed plumbers or electricians? No—plumbing and electrical work must be done by licensed professionals in those trades, even if a general contractor oversees the project. The general contractor coordinates, but licensed plumbers and electricians do the work and sign off on it.
Q: What should I do if a contractor's license has expired? Don't proceed. An expired license means they're operating illegally in that state. Ask if they're renewing it, but understand that inactive contractors may lack current knowledge of updated building codes.
Q: How far back should I check insurance certificates? Always request a current certificate of insurance issued within the last 30 days, and verify directly with the insurer that the policy is active through your project's completion date plus 30 days.
Get at least three verified quotes from licensed, insured contractors before making your decision.