Guide · Proposals
Construction Proposal: What to Include in a Bid That Wins the Job
How to write a construction proposal or bid: scope, specifications, allowances, schedule, payment milestones, exclusions and change orders, with examples.
A construction proposal should define the scope precisely, specify materials and allowances, list exclusions, show a realistic schedule, break down the price, and set out payment milestones and a change order process. Clients compare contractors line by line, so clarity is what makes your bid look trustworthy and keeps the job profitable.
Whether you are bidding on a kitchen remodel or a commercial fit-out, the structure is the same.
What to include
1. Project summary
The client, site address, project type and the outcome they want. Mention anything specific from your site visit, such as access constraints or existing damage.
2. Scope of work
Break the job into trades or phases: demolition, framing, electrical, plumbing, drywall, finishes. Be specific about quantities and locations.
3. Materials and specifications
Name the products, grades or standards you will use. "Half-inch moisture-resistant drywall in bathrooms" is better than "drywall".
4. Allowances
For items the client has not chosen, set a budget and explain how differences are handled.
| Allowance | Amount |
|---|---|
| Kitchen tile, supply only | $[amount] |
| Plumbing fixtures | $[amount] |
| Light fittings | $[amount] |
5. Exclusions
This protects you more than any other section. Common exclusions: permits (if the client obtains them), hazardous material removal, landscaping, furniture moving, work behind walls not visible at the site visit, and design fees.
6. Schedule
A phase-by-phase timeline with start and completion dates, and the dependencies: permit approval, material lead times, client selections.
7. Price and payment schedule
Show totals by phase or trade so the client can see where the money goes, then tie payments to milestones.
| Milestone | Payment |
|---|---|
| Signed contract | Deposit, [x]% |
| Rough-in complete and inspected | [x]% |
| Drywall and finishes complete | [x]% |
| Final walkthrough and sign-off | Balance |
Check local rules on maximum deposits and required contract wording before you set these.
8. Change orders
Explain that any change to scope, materials or schedule will be priced in writing and approved before work proceeds. This single paragraph prevents most disputes.
9. Licences, insurance and warranty
List your licence number, insurance cover and the warranty on workmanship. Offer references from similar projects.
Tips for winning bids
- Do not be vague to look cheaper. A lower number with a thin scope loses to a clear bid with a fair price once the client compares them.
- Show photos of similar work in the proof section.
- Explain your schedule assumptions, such as material lead times.
- Offer options such as standard and upgraded finishes. See proposal pricing tables.
- Walk the client through the bid in person or on video.
Example summary
Example
The Okafor family wants a modern, open kitchen ready before their daughter's graduation party in August. The current layout has a load-bearing wall between the kitchen and dining room and dated plumbing.
We propose removing the wall with an engineered beam, relocating the sink to the island, and installing new cabinetry, quartz worktops and LED lighting. Work will take nine weeks from permit approval, finishing by July 25. The total investment is $[price], paid in four milestones, with allowances for tile and fixtures so you can choose finishes later.
Read our scope of work guide for exclusions wording, or the full method in how to write a business proposal.
Frequently asked questions
What is included in a construction proposal?
Project details, scope of work, materials and specifications, allowances, exclusions, schedule, price breakdown, payment schedule, change order process, licences, insurance and warranty.
Is a construction proposal the same as a bid?
They are often used interchangeably. A bid usually focuses on price for a defined scope, while a proposal also explains approach, schedule and qualifications.
How should payment be structured in a construction proposal?
Usually a deposit, then progress payments tied to milestones, and a final payment on completion. Follow any legal limits on deposits in your area.
What are allowances in a construction proposal?
Budget amounts for items the client has not chosen yet, such as tiles or fixtures. If the final choice costs more, the difference is added to the price.
Keep reading
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