I build websites for people like you. A client of ours has a construction business and did $40m last year and already surpassed that this year. All driven by SEO.
When consumers want to build something, they usually go to Google first. I don’t think anyone really cares what the website looks like (though it looks pretty awesome), I think it’s more about being the first to show up on Google, showing images of the work they do, and making it easy for people to get a quote without having to talk to sales people.
I used to make YouTube videos exposing fake gurus. I stopped because I realized I was teaching more people how to do it by exposing how the fakes were faking everything lol. There will always be snake oil salesman.