Comparing walk-in tub installers in Sacramento CA comes down to three checks. Does the installer hold an active CSLB license? Is there a written scope that names every permit the job needs? Does the warranty cover the tub and the labor and the plumbing as separate items? Skip any one of those and the installer is guessing not planning. Older Sacramento neighborhoods from Land Park to the Fabulous Forties tend to have narrower bathroom doorways and older cast iron drain lines