For most remodelers, Instagram and Facebook aren't primary lead-generation channels - Google search and referrals are. But they do serve a real purpose: when a homeowner is deciding between two remodelers they found on Google, a social profile with real, recent project photos adds a credibility check that tips the decision.
The realistic bar to clear is low: post finished projects consistently (even just a photo and a caption), don't worry about trends or reels unless you enjoy making them, and make sure whatever you do post is recent - a profile that hasn't posted in eight months undercuts the exact trust it's supposed to build.
If you only have time for one platform, Instagram tends to work best for remodelers specifically, because the visual, before-and-after nature of the work fits the format naturally - but consistency matters far more than which platform you pick.