Construction Bid Proposal Generator
A bid is not an estimate with better formatting. It is a firm offer, and the moment an owner signs it you are bound to a number, a scope and a schedule that you wrote in a hurry on a Thursday night.
This construction bid proposal generator builds a printable proposal with your letterhead, a scope of work statement, line items by section, alternates priced outside the base bid, allowances, a named exclusions list, a bid validity window, your license number and signature lines. If you have been looking for a free construction bid proposal template, this is that, and it fills itself in. It prices nothing. What it does is stop you from sending a number without the terms that make the number defensible.
Base bid, alternate, allowance
Owners confuse these three constantly, and the confusion always costs the contractor. Writing them as separate blocks is most of the job.
Scope, exclusions, alternates, then a number
Enter your company and the owner, write the scope of work in one sentence, list your exclusions and allowances, then add line items by section. Put ALTERNATE in a description and that line is priced and shown but kept out of the base bid. Set how many days the bid is good for. The proposal preview updates as you type and prints on its own.
Deliberately absent: no unit-cost database, no suggested markup, no retainage percentage and no state-by-state lien language. This tool formats your terms; it does not invent them. Price the work with the markup and labor burden tools, then bring the result here.
Four clauses that decide who pays when something moves
How long the bid is good for
Put a bid validity window on every proposal; 15 or 30 days is common on residential. Without an expiration an owner can sit on your number for six months and hold you to pricing your suppliers no longer honor. Write it as an expiration date plus a line saying pricing is subject to re-quote afterward, and on long-lead scopes name the specific quote-dependent materials rather than caveating the whole bid, which reads as a contractor hedging everything. A named exception ages better than a blanket one.
What happens if material prices move
A price escalation clause needs a named commodity, a trigger threshold, a published index and a rule for who absorbs what below it. ConsensusDocs publishes a standard form for this and the BLS Producer Price Index is a free, citable index you can write into the clause. A clause that says only "subject to market conditions" is not a clause, it is a hope. Set the threshold so ordinary drift stays yours, and say plainly that the adjustment runs both ways. Write the trigger, the cap and the proof you will show.
What you are not doing
Exclusions are where residential bids leak money. Name hazardous material abatement including asbestos and lead, unforeseen structural or rot repair behind finished surfaces, engineering and architectural fees, permit and impact fees if you are not carrying them, utility upgrades, landscape restoration, appliance supply, work by a subcontractor the owner hires directly, and code upgrades triggered at inspection. Add a clarifications line for anything the plans left ambiguous. Ambiguity found late is always the owner surprise.
How extra work gets authorized
Write the change order procedure into the bid itself and never start extra work without a signature. The clause should say no change is authorized until it is priced and signed by both parties, that the contract sum and contract time adjust accordingly, and how you price it, either fixed or T&M at named hourly rates with a stated markup. Verbal jobsite approval is how contractors end up in small claims, and the owner always remembers the conversation differently. The change order generator prints that signed page in about a minute.
Unit prices are the clause nobody writes and everybody needs. On any scope where quantity is a guess, footings in unknown soil, sistered joists, drywall patching, state a unit price in the bid and bill the actual count against it. It converts the ugliest part of a remodel from an argument into arithmetic, and it is far easier to agree on a rate before the work than a lump sum after it.
Getting paid is written into the bid, not chased afterward
Payment, completion and lien language belong in the proposal, because after the work is in place your leverage is gone. These are confirmed against primary sources; your state's lien statute may add more.
Define substantial completion, not satisfaction
Tie final payment to a written punch list generated jointly within a set number of days of substantial completion, and say that occupancy or use of the work constitutes substantial completion. Final payment tied to the owner being satisfied is not a standard you can meet, because there is always one more thing. Name the warranty period separately so the punch list does not become a year of free service calls.
Retainage is negotiated, not owed
On private residential work no statute sets a retainage percentage for you, so anything held back exists only because your document allows it. If the owner wants retainage, write what triggers its release, normally completion of the punch list, and put a date on it. We publish no typical percentage here because the 5 and 10 percent figures repeated online are trade lore with no statutory or survey source behind them.
Progress payments tied to milestones
A draw schedule reading deposit to schedule, rough-in complete, substantial completion and final payment on punch list gives both sides an event to point at instead of a calendar date to argue about. State the percentage next to each milestone. Billing ahead of your cost rather than behind it is the difference between financing the owner's project and being paid to build it.
The Florida lien warning is a formatting rule
Florida requires a construction lien notice in no less than 12-point capitalized boldfaced type in any direct contract with an owner over $2,500 on residential property of up to four units, signed and dated by the owner (Fla. Stat. § 713.015). Owners licensed under chapter 489 are exempt. Preserving mechanic's lien rights, notice to owner deadlines and any lien waiver you later sign all start with this document.
This is not legal advice, and this tool does not give any. The generator formats a business document; it does not check your state's requirements. Have a construction attorney licensed in your state review your proposal and contract language before you use it, particularly the escalation, change order, payment, retainage and lien clauses. Statutes and standard forms change, and a document that was compliant three years ago may not be now.
- ConsensusDocs 200.1, Material Price Escalation Amendment and Schedule A — price escalation clause resource
- US Bureau of Labor Statistics, Producer Price Index and construction, including the Price Adjustment Guide for Contracts — BLS PPI
- Florida Statutes § 713.015, mandatory construction lien notice — The Florida Senate
Sources read at their primary source and current as of 11 September 2026. We publish no typical residential retainage percentage and no Georgia or Michigan lien-notice language, because neither could be confirmed to statutory text. Read O.C.G.A. Title 44 Chapter 14 Article 8 or the Michigan Construction Lien Act before relying on anything state-specific.
Bids, alternates and getting paid
How long is a construction bid valid?
As long as your proposal says, which is why every bid needs a validity window; 15 or 30 days is common on residential work. Without an expiration an owner can sit on your number for six months and hold you to pricing your suppliers withdrew. Write it as "this proposal expires on [date]; pricing subject to re-quote thereafter" and name the long-lead materials that are quote-dependent.
Allowance vs alternate in a bid: what is the difference?
An allowance is a placeholder dollar amount inside the base bid for a selection the owner has not made; an alternate is separately priced work the owner can accept or reject. Allowances must state the amount, whether it covers material only or material and labor, and that overage becomes a change order. Alternates must be priced standalone so the owner can build a budget without renegotiating the base bid.
How do I protect against material price increases between bid and build?
Use a price escalation clause with a defined trigger and a named index. ConsensusDocs publishes a standard amendment for exactly this, and the BLS Producer Price Index is free and citable, with a published guide for using it to adjust contract prices. A workable clause names the commodity, a threshold such as a 10 percent move from the bid date, the index, and who absorbs the movement below that line.
What goes in the bid exclusions list?
Everything a reasonable owner might assume is included and is not. Standard residential exclusions: hazardous material abatement including asbestos and lead, unforeseen structural or rot repair, engineering and architectural fees, permit and impact fees if not stated, utility upgrades, landscape restoration, appliance supply, temporary housing and code upgrades triggered at inspection. Add clarifications for anything the drawings left open.
How do I stop doing free change-order work?
Write a change order clause into the bid and never start extra work without a signature. The clause should state that no change is authorized until it is priced and signed by both parties, that the contract sum and contract time adjust accordingly, and how you price it, fixed or T&M at named rates with a markup percentage. Verbal approval on the jobsite is how contractors end up in small claims.
Is there standard retainage on residential construction work?
There is no normal, and on private residential work no statute sets one. Retainage exists only because your contract created it, so if an owner asks for it, negotiate the percentage, write what releases it, normally punch list completion, and put a date on it. The 5 and 10 percent figures repeated across contractor blogs trace to no survey or statute, so do not quote them back to an owner as standard.
Do I have to give the owner a lien warning?
In Florida, yes, on most residential direct contracts. Fla. Stat. § 713.015 requires the construction lien notice in no less than 12-point capitalized boldfaced type in any direct contract with an owner over $2,500 for property of up to four units, with an exemption where the owner is a chapter 489 licensee. Requirements differ elsewhere; verify your own state's lien statute before you print anything state-specific.
A tighter bid wins more of what you already quoted
It does nothing for the jobs that never reached you. If your proposals are solid and the calendar still has holes, the problem is further upstream than the paperwork.
Zainfy builds the search and ad systems that keep remodeling and construction contractors booked, for contractors anywhere in the USA.
Related tools
Estimate Generator
The proposal is what the client signs. The estimate is where the number came from, and the two should never disagree.
Change Order Generator
Anything outside the exclusions you wrote into the proposal is a change order. Price it and get it signed before the work starts.
Lien Waiver Generator
The proposal sets the payment schedule. The waiver is what you hand over each time one of those payments clears.
Zayn founded Zainfy in 2023 and has spent six years in performance marketing for home remodeling and construction companies across the United States. He built this tool set because the contractors he works with were losing more money to the documents they sent than to any advertising decision.
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