2. Don't change your mind (too much).
Even though it's inevitable that you'll change your mind about something on your project, know this: Every time you change your mind, it'll result in a change order. Although the change may seem minor, there are always added costs — even if it's only the time spent discussing the change.
Scheduling can be affected too. Everyone working on the job needs to be informed of the change so no one's working on the old plan. Everyone makes changes, and that's OK — just be aware of the potential to disrupt and delay the job.3. Don't buy your own materials.
It seems like an obvious way to save money — a builder is going to mark up the cost of materials and pass that added cost on to you. That’s true, but the builder may get a better price than you to begin with, meaning that even after markup, you'll pay the same price.
If you are a DIYer committed to doing your own shopping, here are 10 tips that can help