How to Read a Contractor's Quote

The anatomy of a quote

A proper estimate has nine parts. The FTC's own guidance is that a written estimate should describe the work to be done, the materials, the completion date, and the price — that is the floor, not the standard. Here is what a good one contains and what each section is really telling you.

Where the money hides: allowances and exclusions

If you read only two sections of a quote, read these. An allowance is an admission that the contractor does not know what you want yet — “tile allowance: $2,000” means they have guessed at a number so the bid can be produced. When you later choose tile at $4,200, the difference is yours, and it does not feel like a change order because nothing changed. It was never priced in the first place.

Exclusions are the other half. Permits, demolition, debris removal, painting after the trades finish, restoring the lawn the skip sat on, and — the big one — the cost of whatever is found behind the wall. A bid that excludes all of these will always look cheaper than one that includes them, and the work still has to be paid for.

How to normalize three bids

Comparing quotes is not about finding the lowest number. It is about making the three documents describe the same job, so that the numbers become comparable at all. Work through these in order.

1. 01

   Get every bid in writing, for identical scope

   A verbal number is not a bid. Ask each contractor to quote the same written scope of work — same materials, same finishes, same square footage — because three quotes for three different jobs cannot be compared. The FTC's guidance is that a written estimate should describe the work, the materials, the completion date, and the price.

2. 02

   Split each quote into labor, materials, and allowances

   A single lump sum tells you nothing about where the money goes or what happens when something changes. Ask for the split. If a contractor will not break the number down, that is information about how the rest of the project will go.

3. 03

   Convert every allowance into a real number

   An allowance is a placeholder — 'tile allowance $2,000' means the contractor has guessed. Allowances are the single most common reason a final bill exceeds the quote. Price the items you actually want, then substitute those figures before comparing bids.

4. 04

   Write down what each quote excludes

   Exclusions are where quotes genuinely differ. Permits, demolition, debris removal, painting after the work, restoring landscaping, and the cost of unforeseen conditions behind a wall are all commonly excluded. The cheapest bid is often the one that excludes the most.

5. 05

   Read the change-order terms before you need them

   Every project has changes. What matters is what the contract says about them: whether changes must be priced and signed before work proceeds, and what markup applies. A contract that lets work proceed on a verbal change with the price settled later is a blank cheque.

6. 06

   Check the payment schedule against the work

   Payments should track completed work, not the calendar. The FTC advises never paying the full amount up front and never making the final payment until the work is done and you are satisfied. Some states limit the deposit a contractor may request — contact your state or local consumer agency to find the rule where you live.

7. 07

   Verify licence and insurance directly with the issuer

   Ask for copies of the licence and insurance certificate, then verify them with the issuing body rather than taking the document at face value. Refusing to provide copies of licence, insurance, or a written contract is an FTC-listed warning sign.

8. 08

   Sanity-check the total against independent cost data

   Once the three bids are normalized, compare the middle one against an independent estimate for your project and region. A bid far below the others is usually missing scope rather than offering a bargain, and a bid far above may be pricing risk you can remove by clarifying the scope.

Red flags, from the regulator

These are not folklore. Every item below is drawn from the Federal Trade Commission's published consumer guidance on home improvement scams.

Sourced from FTC Consumer Advice, “How To Avoid a Home Improvement Scam” and the FTC's “Hiring a Contractor” publication.

Deposits and payment schedules

Two rules from the FTC cover most of the risk: do not pay the full amount up front, and do not make the final payment until the work is finished and you are satisfied. Between those two points, payments should be tied to completed milestones rather than to dates on a calendar — otherwise you can find yourself 60% paid on a job that is 30% done, which is precisely the position from which you have no leverage.

On method: pay by credit card or cheque. The FTC is explicit that you should never pay a contractor by wire transfer, gift card, payment app, cryptocurrency, or cash — not because those are inherently suspect, but because none of them gives you any way to claw money back.

Sanity-check the number against real cost data

Once the bids describe the same job, you still want an independent view of whether the middle one is reasonable for your project and your region. That is what our calculators are for — they are built on contractor cost data rather than on what any one bidder tells you.

• Home renovation cost calculator — whole-project scope
• Kitchen renovation estimator and the kitchen line-by-line breakdown
• Roof replacement and HVAC installation
• Window replacement, painting, and deck building
• Metro cost guides — the same projects priced for your local labor market

If every bid comes in far above our range, the usual explanation is scope you have not noticed — or a genuinely hot local market. If one bid comes in far below, assume something is missing until you can point at what.