Web design focuses on the visual and user interface aspects of a website, while web development involves the coding and programming necessary to make the design functional and interactive.

The web design process includes planning, wireframing, designing mockups, development, testing, and launching the website.

While having technical knowledge can be beneficial, it's not a strict requirement. A skilled web designer can handle the technical aspects for you. However, understanding basic concepts can help in effective communication during the design process.

Consider factors like the agency's portfolio, expertise, previous client reviews, cost, and whether they align with your design preferences and business goals.

The cost of web design varies widely based on factors like complexity, features, number of pages, and the expertise of the designer. It's best to request a quote based on your specific project requirements.