The older the line, the bigger the replacement quote can get, and Escondido has plenty of older lines. A century old clay run under a historic front yard is exactly the situation where a trench does the most collateral damage, mature trees, established gardens, hardscape that's been settling into place since your grandparents' era. There's an alternative that can protect much of it. When the line qualifies, it gets rebuilt from the inside, trenchless, and the yard above may well look the same afterward.
Pipe lining, CIPP, can usually start from an existing access point. A resin saturated liner travels the old line, presses against its walls, and cures in place into a new jointless pipe within the old one. Jointless matters enormously for lines this age, because Escondido roots find their way in through joints, cracks and failed connections, and the new pipe covers those in the lined section. Structural matters too. The cured liner isn't a coating. It's a pipe of its own. Older lines in the city can get a modern renewal, often without a shovel in the historic ground above them.
Here are the limits. Lining rebuilds damaged pipe that still holds its shape. Collapse is a different problem with different answers, and camera footage helps show which category your line falls into. You get the evidence in plain English, the decision is yours, and a licensed contractor performs the work when you're ready. For a city this age, lining is an option worth knowing about before agreeing to anything.