On the Internet nowadays there are a lot of people who claim to be web designers or web design firms. Many take on the task for amusement, for fun, or as a part-time job. Web designers who work full-time are the best option.. Anyone who is doing web design as a part-time job is less likely to think of it as seriously as those who do it for money.
There are those who work in web design who do not have formal training. Make sure that the web designer has a formal training at a recognized school. Self-taught people while I admire their efforts depend on Internet for their entire data, and as you are aware, information found from the Internet could be incorrect.
The web design firm you select to work with should have experience in the field. If you'd like to create an E-commerce site, it's recommended to select a designer with e-commerce sites within their portfolio. Your web design company must be able to provide an offer for your web project, along with the contract. Beware of businesses that do not offer an official contract.
The contract should specify precisely how the designer will accomplish and the time they will need to complete the task, as well as the cost, and the details you've agreed to provide. An official contract will be the best method to avoid disputes between the developer and your. It is important to outline in your contract any potential issues that might occur.