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How to Write a Contractor Bid

Short answer

A contractor bid should include scope of work, line-item labor with hours, line-item materials with SKU, equipment and fixtures at a specified tier, allowances for undecided items, a fixed price or time-and-materials rate, a payment schedule tied to milestones, and warranty terms. Keep it under two pages and use the same structure on every bid so clients can compare side-by-side.

  • Structure wins bids. Clients compare, so use normalized line items.
  • List allowances clearly and explicitly.
  • Include a milestone payment schedule.
  • Always state the warranty term and what it covers.
  • Cite the license number and insurance limits.

Why bid structure matters more than price

Clients rarely pick the lowest bid. They pick the clearest bid. A well-structured bid signals that the contractor has thought through the scope, priced it honestly, and will not hit the client with surprise change orders once demo starts.

Inside a marketplace like ContractShield, bids are displayed side by side in the same format. If your bid matches the template, the client can compare it in minutes. If it does not, the client either does extra work to normalize, or throws out the bid and moves on. Structure is the number one driver of win rate across 2025 to 2026 ContractShield data.

The eight parts of a winning contractor bid

Every contractor bid should include: scope, labor, materials, allowances, equipment, schedule, terms, and warranty. Missing any one of them invites questions and slows the decision.

  • Scope: restate the client's request in your own words with assumptions and exclusions.
  • Labor: hours per trade with hourly rate.
  • Materials: brand, SKU, quantity, unit cost.
  • Allowances: dollar placeholder for undecided categories.
  • Equipment: fixture or appliance tier with model number.
  • Schedule: start, milestones, end.
  • Terms: payment schedule tied to milestones, contingency.
  • Warranty: term in years, what is covered, what is not.

How to price labor without leaving money on the table

Labor pricing is where new contractors cost themselves margin. List labor hours by trade, not as a lump sum. That shows the client you have thought through the work, and it gives you protection if scope expands.

Typical 2026 US labor rates by trade: plumber $120 to $195 per hour, electrician $95 to $175, tile setter $75 to $145, drywall $55 to $95, painter $50 to $90, general carpenter $65 to $115. Overhead and profit layer on top as a 15 to 22% markup on direct cost.

When to use allowances vs when to spec the brand

Allowances are good when the client has not chosen a product yet but needs a budget number. Explicit brand and SKU spec is good when the client has chosen. Never mix them. A bid with three lines that say 'tile: $2,200 allowance' and 'vanity: American Standard Portsmouth, model 7420K.104 at $1,450' is internally inconsistent and confuses the client.

If you must set an allowance, write the allowance budget explicitly, note how cost overruns are handled, and cap the allowance with a change-order trigger.

How to write a schedule that survives reality

Give a start date, three to five milestones, and an end date. Each milestone should include the scope completed, the inspection required if any, and the payment draw. Weather or permit caveats are fine as long as they are stated upfront.

On ContractShield, milestone dates roll into the project workspace automatically. Clients see the week-by-week plan and can request updates. That transparency dramatically reduces email volume during the project.

What warranty should I commit to?

A standard 2026 workmanship warranty is 1 year on residential remodels, 2 years on new construction, and 5 to 10 years on roof replacement. List the warranty term, what is covered (workmanship, not wear and tear), and what is excluded (owner-supplied materials, failure caused by later work).

Every ContractShield verified_pro contractor commits to a minimum workmanship warranty in the auto-generated contract. That protects both sides at closeout.

How to stand out in a bid marketplace

Three things drive win rate: structure, clarity, and responsiveness. Bids submitted within 24 hours of the work order posting win at 2.4 times the rate of bids submitted on day 5. Bids that match the template structure win at 1.8 times the rate of unstructured bids. And bids that include photos of similar past work win at 1.5 times the rate of text-only bids.

Frequently asked questions

How long should a contractor bid be?

Most strong bids sit between one and two pages. Long bids do not win more. Clear bids do.

Should I include my license number in the bid?

Yes. Cite your license number, class, and expiration plus your insurance limits. On ContractShield, those fields are pulled from the verified profile automatically.

Do I need to include a contract with the bid?

No, but the bid should outline the key contract terms so the client can decide without a back-and-forth. ContractShield auto-generates the contract from the accepted bid.

How do I price a T&M bid?

Use a time-and-materials rate for the labor plus material markup, and cap it with a not-to-exceed number. Clients rarely sign open-ended T&M without a cap.

What if the client changes the scope mid-project?

Handle scope changes through a change order that lists the new scope, cost delta, and timeline impact. The client signs, and the contract updates.

How do I avoid leaving money on the table?

Price labor hours carefully, mark up materials 10 to 18%, and include overhead and profit on top. Marketplace bids that lose on margin rarely make up for it in volume.

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