Why price-only questions miss most of the real risk
Most siding disputes trace back to a mismatch in expectations about scope, schedule, or who was supposed to be on site, not to the price itself being unfair.
A short list of non-price questions, asked before signing, closes most of that gap for a fraction of the time it takes to compare dollar figures across bids.
Pin down the scope in writing
Ask for the exact material, brand, color, and quantity in writing, along with whether removal, house wrap, and trim are included or billed separately, so the scope itself isn't open to interpretation later.
Ask specifically what happens if rotted sheathing or framing is discovered once the old siding comes off, since that's one of the most common sources of a mid-project price increase.
Get a real timeline, not just a start date
Ask for an estimated number of working days once the crew is on site, not just a start date, since a start date alone says nothing about how long your house will be opened up.
Ask what happens to the schedule if weather causes a delay mid-project, which ties directly into the temperature and weather guidance covered elsewhere on this site.
Find out who's actually doing the work
Ask directly whether a subcontractor will be doing the actual installation instead of the contractor's own crew, and if so, get that subcontractor's company name so you can look up its license on your own.
Ask whether the same person who gave the estimate will be on site during the job, or whether a project manager you haven't met yet will be running it day to day.
Confirm how a change gets handled mid-project
Ask what the process is for approving a cost increase once work has started, specifically whether it requires your signature before the extra work begins or gets billed after the fact.
A contractor who can describe their change-order process clearly, without hesitation, has likely used it before, more than once, in a way that didn't end in a dispute with the homeowner.
Ask about cleanup and what 'done' actually means
Ask whether daily site cleanup is included or happens only at the very end, since a job site left messy for weeks is a reasonable early warning sign about overall attention to detail.
Ask what a final walk-through covers and who signs off on it, so there's a clear, mutually understood point where the job is considered finished.
Settle on how you'll actually communicate during the job
Ask for one point of contact who answers questions during the project, rather than discovering midway through that calls get routed between an office, a salesperson, and the crew with no clear owner.
Ask how issues get flagged day to day, whether that's a phone call, a text thread, or a site visit, so a small concern on day two doesn't sit unresolved until the final walk-through brings it up instead.