The quote comes after the visit
A range you see in an ad is a guess. The pro who stands in your hall can see whether the wet spot is a cabinet or a whole ceiling. That is the quote we mean when we say it is written.
Ask for the scope in plain language: what comes out, what stays, and whether drying equipment is part of the same visit or a second one.
Access is half the job
A vanity you can empty is simpler than a built-in that has to be protected. A crawl you can enter on your knees is simpler than one blocked by stored lumber.
If the hatch is in a closet full of winter clothes, say that when you book. It changes the time, and it should change the price.
Still wet is different from already dry
If the supply line is still dripping, the first task is the water, not the stain. If the leak was last month and the gypsum is already dry, the scope may be smaller, or it may be a reading that says leave it.
Bleach on the surface does not tell the pro the cavity is dry. Mention it anyway so they know the paint and the smell have been altered.
A missing fan duct shows up in the price
Bath fans that stop in the attic are common in local subdivisions. Fixing the duct is sometimes a small add. Wet insulation under that duct is not.
Those are separate lines on a written quote. If they are bundled into one vague number, ask them to split it.