When someone calls and says they need a redesign, I ask what's wrong with the current site. About eight times out of ten, the answer has nothing to do with design. It's usually one of these:
The copy is unclear. Visitors don't know what the business does within five seconds, so they leave. No amount of new colors fixes that. The site is slow. Pages take six seconds to load on mobile. A redesign on the same hosting with the same image weights will be just as slow. The information architecture is wrong. The thing people came to find is three clicks deep behind a menu labeled something cute. Moving it to the homepage costs nothing; a redesign costs thousands. There's no clear next step. The page describes the business but never tells the visitor what to do. Add a phone number, a form, or a button and traffic starts converting. The audience and the message don't match. The site speaks to peers in the industry while the actual customers are homeowners who've never heard the jargon. New design, same disconnect. The site isn't the problem at all. The business isn't getting traffic. A redesign won't change that — marketing will.
A redesign is satisfying because it feels like progress. New site, new screenshots, something to share. But if the underlying issue is copy, speed, structure, or strategy, the new site will start failing the same way within a few months. The honest version of my job is to ask what the site is supposed to do, measure whether it's doing it, and fix the smallest thing that closes the gap. Sometimes that's a redesign. More often it's a rewritten homepage, a faster image strategy, a clearer menu, and a real call to action.
Occasionally the answer is to replace everything under the design and leave the design alone. I wrote up one of those jobs in Why I Rebuilt an Old Website Without Redesigning It. That's a less exciting pitch. It's also a much smaller invoice. And it works.