With roughly 985 households in Fairfax (per local figures) and a median income of $120,552, a fair number of homeowners here are comfortable tackling small jobs themselves, and some opener problems really are DIY-sized: a dead remote battery, a sensor knocked out of alignment by a bike or a box left in its path, or a wall button that's lost contact. Check those three first. What's not a weekend job is anything involving the opener's logic board, the drive gear inside the unit, or the high-voltage side of the motor housing - on a factory-installed system from the 2000s, those components are often proprietary to the brand that came with the house, and guessing wrong can fry a board that didn't need replacing. If the opener hums but the door doesn't move, or the lights blink in a pattern instead of running normally, that's a call, not a troubleshooting afternoon.