On properties like these, a sewer trench costs more than the plumbing. The landscaping is decades of investment, the hardscape was designed, and restoring it after an excavation is a project of its own. So when an older line finally needs real work, a good question is whether it can happen without touching much above it. For qualifying lines, it often can.
Pipe lining, CIPP, rebuilds the line from the inside, trenchless. From an access point such as a cleanout, a resin saturated liner presses against the old pipe's walls and cures into a new pipe within it, structural and jointless. The old clay that's been letting roots in at its joints, cracks and connections gets replaced in function, in the lined section, by a pipe without those openings, and everything above, the garden, the hardscape, the mature trees whose roots caused the problem, can often remain as it was.
A camera inspection helps show whether the line qualifies before any proposal. Lines that hold their shape qualify, collapsed sections are a different conversation, and you'll get a clear answer either way, in plain English, with every option's tradeoffs on the table. The decision is yours, made unhurried, with a licensed contractor performing the work when you're ready. This can be one of the rare cases where the best answer is also the least disruptive one.
