What questions should you ask a vendor before hiring?

About availability and timeline
Ask when they can start, how long the project takes, and what happens if delays occur. Clarify if they have backup plans for emergencies. Ask about blackout dates when they're unavailable.
About past work and guarantees
Request references from recent clients and permission to contact them. Ask what happens if you're not satisfied—do they redo work? What's their refund or revision policy? Ask about warranties or guarantees on their work or products.
About costs and payment
Get a written quote that breaks down all fees. Ask if there are additional costs you should expect. Clarify payment terms—when deposits are due, when final payment is due, and accepted payment methods.
About communication and process
Ask how often they'll update you and through what channel. Ask about their cancellation policy. Clarify decision-making: who do you contact if issues arise?
Red flags if they won't answer
If a vendor refuses to provide references, won't commit to timelines, or won't discuss problems in their guarantees, that's worth investigating further. Legitimate vendors have clear answers to these standard questions.