Well, you should start with using a website designer who has experience and can show you past work. What also helps, is to see how the website currently ranks on Google local search. These two factors can tell you a lot about the website designer you are looking to hire.
The speed of your website is also crucial to how long someone stays on your website. If it takes too long to load up all the fancy images and plugins, you risk the chance of losing your prospect in that crucial first 30 seconds.
And finally, how do you engage your prospect or customer? Do you have special offers, can they buy right now and if not do you have a lead capture and call tracking number for them to fill in a form to receive either a call or information you are promising and is there a way to click to call your business? These are are all crucial aspects of website design today.
These are what you need to discuss with your website designer and why they are so important to your future digital marketing success.