Hiring a web agency to build a website or e-commerce site has many advantages. First, the agency has experience and knowledge of web design, development and marketing. They can help you create a professional and well-structured website that is tailored to your company's needs and target audience.   Hiring a web agency can also save time and money in the long run, as they can offer a complete solution that includes everything from design and development to maintenance and support. This can eliminate the need to hire an in-house web developer or designer and free up resources for other areas of the business.   A web agency also provides valuable insights and advice on web design and marketing, which can help improve a company's digital presence and increase sales.