Factors to consider when choosing a logo designer include the designer’s portfolio, his communication style, client testimonials and the design process. It is important to discuss the time frame for the project completion before hiring a designer.
Carefully look through the designer's portfolio, and assess the quality of his past logos. Quality is more important than quantity when looking through the portfolio. It is better to hire a designer with a few high-quality designs than one with hundreds of logos but only a handful of good ones.
Good communication is important for a successful result especially when dealing with a designer who you do not meet face-to-face. Look carefully at the designers spelling, grammar and punctuation for clues on their knowledge of the subject. A good designer provides regular updates and specifies how to reach him and when he is available.
Testimonials help to get a sense of how happy past clients are with the designer. Contact past clients, preferably those with similar projects. Ask about the designer’s communication, whether they stayed on budget and the client’s overall comments about the project.
Lastly, ask the designer about his work process before hiring him. Enquire about the step-by-step process of choosing a logo design and any additional services offered after the project is completed, especially concerning revisions.