The large majority of homeowner traffic to a remodeler site comes from a phone, often while standing in the room they want redone. A genuinely mobile-friendly site needs: fast load time (under three seconds), a phone number that's tap-to-call, a quote form that's easy to fill out with a thumb, and photos that load quickly without looking compressed or blurry.
The quickest way to check your own site: load it on your phone on cellular data (not wifi) and time how long it takes to feel usable. If it's more than a few seconds, you're losing a meaningful share of visitors before they ever see your work.