How to Tell If a Contractor's Bid Is Missing Something

You have a contractor's bid in front of you. It's a few pages of line items and a number at the bottom. The number looks reasonable. But here's the uncomfortable truth: the cheapest-looking bid is often the one that left the most out.

If you're not a construction person, you have no easy way to know what should be on that bid. This is how to check — even without being an expert.

Why bids mislead (even honest ones)

A bid is a proposal, not a guarantee that the whole job is covered. Things fall off for ordinary reasons:

• The contractor bid fast and missed a step.
• A big-ticket item (an engineered beam, a code-required upgrade) is assumed to be "someone else's" or left as an allowance.
• A line is there but has no price — it's "open," to be figured out later (read: billed later).
• The scope is written so vaguely you can't hold anyone to it.

None of these require bad intent. But all of them cost you money after the contract is signed.

The three things to check on any bid

1. Missing tasks

Compare the bid to what the job actually requires. If the engineer's letter calls for a structural ridge beam and the bid has no line for it, that's not a small omission — it's often the single most expensive item, and leaving it out makes a bid look cheaper than it really is. Missing tasks are the biggest risk because they're invisible: you can't notice a line that isn't there unless you know to look for it.

How to find them: list what the job requires independently of the bid — from the engineer letter, the drawings, the scope notes, and plain common sense about the work — then check each item off against the bid. What's left over is your gap list.

2. Unpriced or "open" items

Scan for line items that are present but carry no dollar amount, a $0, or the words "allowance," "TBD," or "by others." Each one is a hole in the price. A bid total means nothing if five lines underneath it are unpriced — the real number is unknown.

How to find them: literally look down the price column for blanks and zeros. Count them.

3. Vague or under-scoped lines

"Repair as needed." "Miscellaneous." "Paint where required." These aren't scope — they're wiggle room. And quantities that look light (200 SF of drywall for a room that's clearly bigger) mean you'll get a change order later.

How to find them: for each line, ask "could two contractors read this and do very different amounts of work?" If yes, it needs to be pinned down before you sign.

Photos are your ground truth

The written scope tells you what someone intended. Photos of the actual site tell you what's really there — the true damage extent, the existing finishes, the conditions a written scope glosses over. When you're checking a bid, the photos often surface the missing tasks faster than any document, because you can see the work that has to happen.

The questions to ask before you sign

You don't have to be an expert to ask good questions. For every gap you found:

• Missing task: "The engineer's letter requires X — is that included, and at what price?"
• Unpriced line: "This line has no price. What's the number, and what happens if it runs over?"
• Vague line: "Can you spell out exactly what 'repair as needed' covers here?"

A good contractor answers these without flinching. Hesitation is information.

Let the software be the expert

Doing all of the above by hand means knowing construction. That's exactly the gap [TrueTakeoff's Bid Review](/how-it-works) closes. You upload what the job requires — the engineer letter, the sketch, notes, and photos — plus the contractor's bid. TrueTakeoff builds its own expert view of the required scope, compares the bid against it, and tells you in plain English:

• what's missing from the bid,
• what's unpriced or open,
• what's too vague or under-scoped,
• and a straight verdict on what's the deal with this bid — sign it, sign it with clarifications, or send it back.

It even writes the questions to send the contractor. It's not a replacement for a licensed professional's judgment — it's the second set of expert eyes that makes sure you're asking the right questions before you commit.

A bid is the moment your budget is really decided. Check it like it matters — because it does.