I just went through extensive home remodeling. This is a big industry and there are a lot of opportunities to improve it by software. It was impossible for me to get a good visualization of what the end state of my home would look like. I needed to hire designers for that. It was difficult to know what various paint options would look like. And then there is the whole construction / contractor / material aspect of it. It is still based on good old connections and negotiations.
And then there is the whole construction / contractor / material aspect of it.
A big problem with a renovation is the uncertain number of surprises that the contractor will encounter when tearing out the existing material. The contractor doesn't want to get stuck cleaning up that black mold for free.
Sorry to hear about your pain on the remodel! Been there. We're working on a company called Skipp (www.skipp.co) to address exactly the problems you mentioned. We're currently in beta and if you're up for it we'd love to get your feedback.