Warranty language

Warranty duration is the easiest number to compare and one of the least informative. A long warranty with broad exclusions and demanding conditions can be worth less than a short one with neither.

What this page cannot establish

SewerOwner cannot tell you whether a warranty will be honoured
a longer warranty does not establish better work
SewerOwner cannot assess a contractor’s likelihood of remaining in business
nothing here is legal advice about a contract

What to read the terms for

What specifically is covered — the pipe, the workmanship, the materials, or a stated performance?
What is excluded?
What starts the clock, and what document evidences the start date?
What must you do to keep it valid — maintenance, inspections, records?
Does it transfer if you sell?
What is the process for making a claim, and to whom?
What happens if the company changes name or ownership?

What would change the answer

the full written warranty terms, not the headline duration
what conditions the warranty places on the homeowner
whether it transfers on sale

What to do next

Warranty is one criterion among many, and reading it in isolation is how it becomes a tiebreaker it should not be.

Compare warranty terms alongside the rest of the scope

If your situation is different

You are selling and want to pass it on: Selling with known sewer history

What to keep
Most warranties depend on records the homeowner has to keep.