Turn the Tables at Bid Time: What Happens When You Interview the Contractor Back
Photo: Vatbunchanthona, CC BY-SA 4.0, via Wikimedia Commons
Every commercial client knows the routine. The general contractor walks into the conference room with a polished deck, asks about your budget, your deadline, your sign-off structure — and you answer, grateful someone is finally asking organized questions. It feels like due diligence. It is actually a one-way street.
At United ACS LLC, we've sat on both sides of that table. And we can tell you: the questions a contractor asks you are partly sales technique. The questions you ask the contractor — and, just as importantly, how they react to being asked — are where the real vetting happens. A lowball bidder who hasn't priced your project honestly will often tip their hand before a single mobilization day. You just have to know what to listen for.
Why the Reaction Matters More Than the Answer
Here's the opinion part, stated plainly: a contractor's composure under a professional-grade interview is itself a deliverable. Any competent estimator can recite a payment schedule. What separates a thorough general contractor from a number-thrower is whether they welcome the scrutiny or visibly recalculate — mentally adjusting the bid upward, or worse, getting defensive about practices they assumed you'd never question.
We've watched seasoned GCs slow down, pull out a notebook, and ask for clarification. That's a good sign. We've also watched bidders brush past questions about change-order approval chains with a wave of the hand and a promise to "handle it in the field." That's a signature you'll regret.
Ten Questions That Force a Real Answer
Run these in order. Take notes. Watch for hesitation, redirection, or answers that sound rehearsed rather than specific to your building.
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Walk me through your payment schedule. Vague answers like "monthly, based on progress" aren't enough. You want milestone-based billing tied to verifiable work in place — not a front-loaded deposit that has you financing their overhead.
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What is your change-order approval chain, and who signs on your side? If the answer is "my project manager handles it," press further. You want to know whether a field superintendent can author a change order, price it, and have it back to you in writing within 48 hours — or whether it disappears for three weeks while the work continues and the invoice grows.
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How do your delay clauses work — both directions? A fair contract addresses excusable delays (weather, permitting, owner-caused holds) and non-excusable ones. A contractor who only wants delay protections for themselves is telling you something.
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Where will materials be stored, and who insures them? On a tight urban site or an occupied office building, staging is a real cost and a real liability. A bidder who hasn't thought about it hasn't walked your site.
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Who signs off on inspections, and who attends them? You want a named person — not a rotating cast — present when the building official or third-party inspector walks the work.
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Which portions of this bid did you self-perform, and which went to subcontractors? Follow up: have you worked with these subs before, at what projects, and are their quotes committed or estimated?
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What's your current backlog, and where does my project sit in it? A GC stretched across six simultaneous builds will staff your job with whoever's available in month three.
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Show me a change-order log from a comparable project. Any contractor with real history can produce one, with values redacted. A firm that claims they "rarely have change orders" on commercial work is either extraordinarily disciplined or not being straight with you.
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What happens in the first two weeks after notice to proceed? Specificity here — submittals, procurement long-leads, site protection, coordination with your facilities team — signals a contractor who plans. Generalities signal one who plans to figure it out later, on your dime.
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Who is my single point of contact after the contract is signed, and what is their authority? The polished principal in the sales meeting will not be on your site. Meet the person who will be, and find out what they can approve without escalation.
Reading the Room
You don't need all ten answers to be perfect. You need the responses to be specific, documented, and consistent with the bid in front of you. The most valuable data point is often the simplest: does the contractor treat your questions as legitimate due diligence from a sophisticated client, or as friction to be managed?
Contractors who welcome the process tend to run projects the same way — transparent, documented, and open to oversight. Contractors who bristle at ten questions in a conference room will bristle at ten questions from your inspector in month six.
A Note on Reciprocity
One caveat: this only works if you're prepared to answer the hard questions too. Contractors evaluate clients constantly — payment history, decision-making speed, whether the owner's representative has actual authority. If you want a top-tier general contractor to engage seriously with your interview, come with a realistic budget, a decision framework, and a named person who can sign. Vetting is a two-way exercise, and the best contractors are vetting you right back.
The bid that looks cheapest on paper is frequently the one that was least examined by the person who wrote it. Ten questions and thirty minutes of careful listening will tell you which bidders did the work — and which ones are hoping you won't notice the difference until the change orders start arriving.
