Ensuring your website is ADA compliant takes skill and know-how. Even with drag-and-drop and state-of-the-art web builders, knowing how to put together content, add alt-tags and compliant contrasting colors just to name a few thing, it takes someone familiar with coding, UI/UX techniques and the best practices advised by the W3C (World Wide Web Consortium) to ensure that your site meets at minimum the A Level of Conformance. Here is the W3C’s complete and exhaustive list of technical conformance guidelines.
The truth is, when you’re assembling like a furniture, you’re not a professional furniture builder, and therefore the quality and the output is not going to be as good. And that metaphor applies to website design. Most people are not professional digital marketers or designers or understand user personas, or how to get traffic, or any of those things. And so, not only are you using all of your time to build the website but then you’re not getting as high-quality an output as you would as if you just hired someone who did that full time.