Homeowners often tell me they got a bad paint job and did not know what to look for when they hired someone. These are the seven questions that would have exposed the problem before any money changed hands.
1. What is your California CSLB license number?
A licensed painting contractor in California must have a valid CSLB license and should share the number immediately without hesitation.
Look up the license at cslb.ca.gov. Verify it is active, verify the classification matches (Painting is C-33, General Building is B), and check the license history.
If they hesitate, cannot produce a number, or claim they don’t need one for “small jobs,” walk away. Unlicensed painting is illegal in California for projects over $500.
2. Can I see your certificate of insurance?
Ask specifically for general liability AND workers compensation insurance. Both should be current. Ask for a certificate of insurance (COI) that lists you or your property manager as certificate holder.
Workers comp matters more than most homeowners realize. If a contractor without workers comp has an employee injured on your property, YOU can become financially responsible for those medical costs. That is a real risk, not a theoretical one.
3. Can I see photos of your last three completed projects, and can you tell me who the clients were?
Photos alone are meaningless. Anyone can pull photos from Google. You want three specific recent projects, ideally in your area, with client contact information so you can call and ask.
Any legitimate painter has recent projects they can reference and clients who will vouch for them. If they cannot produce this within a business day, that is a red flag.
4. Can you describe your prep process step by step?
Listen carefully to the answer. A professional response includes: surface cleaning, scraping loose paint, sanding, patching, caulking gaps, priming as needed. Interior work should mention protecting furniture and floors. Exterior work should mention pressure washing and wood repair assessment.
If the answer is vague (“we’ll clean up the surface and prime as needed”), the prep will be vague too. Bad prep is the single biggest cause of paint failure.
5. What paint will you use and how many coats?
Specific answers only. Product name and manufacturer. Number of coats per surface. Sheen. Color name if selected.
Vague answers (“professional-grade paint,” “as many coats as needed”) signal that the actual paint on your project is negotiable and probably not what you think you are paying for.
Any legitimate proposal specifies the paint by product line, not just brand.
6. What warranty do you provide, and can I see it in writing?
Ask for the warranty in the same document as the estimate. If you receive only verbal warranty promises, they do not exist for practical purposes.
A written warranty specifies what is covered, what is not, for how long, and how to request warranty service. Interior warranties typically run 1-2 years. Exterior warranties typically run 2-5 years depending on scope.
If a contractor cannot offer written warranty terms, ask why. The answer will tell you something.
7. What is your timeline and what could delay it?
Legitimate contractors can give you a realistic timeline including potential delay factors (weather for exteriors, cure time for cabinets, coordination with other trades). They will also tell you honestly if their schedule is booked out several weeks.
Contractors who promise they can start tomorrow are usually either lying or desperate. Neither is a good sign. Good painters are usually 2-4 weeks out at minimum.
Bonus: their answers to your questions
Pay attention not just to what they say, but how they say it. Are they answering your questions or dodging them? Do they seem interested in your specific project or reading a script? Do they show up on time to the estimate? Do they follow up when they said they would?
The way a contractor handles the estimate stage predicts how they will handle the actual project. If communication is bad now, it will be worse later when your walls are half-painted and you need something addressed.
Hiring the right painter is not complicated. Ask these seven questions, listen to the answers, and trust what those answers tell you.
