​Setting up foundations for contractors.

I’ve been thinking on it for a while and as someone who comes from a construction and plumbing background I notice so many contractors (at least in my area) who don’t even have websites, CRM, etc. set up, they strictly go by word of mouth and their isn’t anything wrong with that, definitely a great way to grow but a lot of contractors don’t care to travel for work and seeing so many without the foundations of a business model has made me think about starting a side gig building websites and setting up proper systems for contractors and taking a monthly fee, if someone called you about this and offered it to you what would your response be?