Upgrade the tired 4-foot run to a fence that actually holds
Mission's older starter homes and rentals are full of low, saggy 4-foot chain link that went up decades ago and can't hold a determined dog anymore. The upgrade isn't complicated: pull the old light wire and hang a real 6-foot run in 9-gauge, on posts set to depth, with a bottom tension wire so nothing digs under. It's still the most affordable fence going, and it turns a fence that half-works into one that closes the yard for good — the difference between hoping the dog stays in and knowing it does.