Budget tip: allocate 20% of your project to unfamiliar fixes, like plumbing reconfigurations or previous pipe replacements

https://emilianozzyk602.theburnward.com/how-homeowners-get-trapped-mid-project-in-mesa-bathroom-renovations

Budget tip: allocate 20% of your undertaking to strange fixes, like plumbing reconfigurations or historic pipe replacements, which almost always crop up as soon as walls come down.