Really for anything above simply handyman-level repairs like fixing a leaky faucet, doing your homework is the best way to approach renovation and remodeling. Impatience can be a great motivator, but slowing down just enough to develop a well-rounded understanding of what need and how to make that happen can save a lot of headaches and frustration down the line. Years of study aren’t needed to remedy the outdated kitchen in a house you’re thinking about buying, but take your time to do more than a cursory internet search before hiring someone or diving in yourself.
Electricity has more potential for immediate harm than any other system in the house, save only a building that is actively falling down. Therefore, even relatively inexpensive electrical issues get emphasis in my home inspection reports.