A YouTube tutorial can make almost any home repair look manageable. Thirty minutes, a handful of tools, and suddenly someone has transformed a complicated electrical panel or repaired a roof without breaking a sweat. The missing part usually comes after the video ends.
Some home repairs punish small mistakes with consequences that extend far beyond the original problem. A poorly installed light fixture might flicker. A badly repaired gas line could put an entire household in danger. And a foundation repair that addresses the visible crack instead of its underlying cause can leave homeowners with an expensive problem that refuses to go away.