Bid Calculator

A bid is a firm, competitive price submitted to win a defined scope of work, common in commercial and contract jobs. An estimate is a non-binding approximation of likely cost that can change as conditions are uncovered. A quote is a fixed, binding price the customer can accept as-is. Bids are the most formal of the three — detailed, often competing against other contractors, and legally binding once accepted.

A healthy bid-to-win ratio for field service businesses is 30–50% — winning roughly one of every two to three bids you submit. Winning more than 60% often signals you’re underpricing and leaving margin on the table; winning under 20% suggests you’re overpriced, bidding the wrong jobs, or losing on presentation and follow-up rather than price. Track your ratio by job type to find where you’re most competitive.

You win more bids on value, speed, and presentation — not just price. Respond fast (the first professional bid in often wins), present a clean branded proposal with clear scope and inclusions, offer good-better-best options so customers self-select, include reviews or references, and follow up within 48 hours. Most jobs are lost to slow, sloppy, or confusing bids — not to being a few dollars too high.

Bidding low to win work is usually a losing strategy. It trains customers to expect cut-rate pricing, attracts price-shoppers who churn, and leaves no margin for callbacks, overhead, or profit. A better approach is to bid at a sustainable margin and win on responsiveness, professionalism, and options. If you must compete on price, do it by reducing scope through good-better-best tiers — not by gutting your margin on full scope.

A fixed-price (lump-sum) bid commits you to a set price for a defined scope — the customer gets cost certainty, and you absorb the risk if the job runs long. A time-and-materials (T&M) bid bills actual hours plus materials with a markup — you’re protected against scope surprises, but the customer faces an open-ended total. Use fixed-price for well-defined jobs and T&M for diagnostic, emergency, or unpredictable work.

Most field service bids are valid for 30 days, though some shorten validity to 14–21 days when material or fuel prices are volatile. Always include an explicit expiration date and a clause noting pricing may change if costs shift before acceptance. For larger commercial projects with longer decision cycles, use a 60–90 day window and build a price-escalation clause into the contract.

A professional bid should include your company info and branding, the customer’s details, a clear scope of work with inclusions and exclusions, itemized or lump-sum pricing, payment terms, a project timeline, an expiration date, and a signature line. For commercial or government work, you may also need insurance certificates, bonding, licenses, and references. The clearer the scope, the fewer change-order disputes later.

Commercial and government bids are more formal than residential. Review the request for proposal (RFP) or bid documents carefully, attend any mandatory pre-bid walkthrough, perform a detailed takeoff of labor and materials, factor in bonding, insurance, prevailing wage where required, and longer payment cycles, then submit on the exact forms by the stated deadline. Missing a required document or the deadline disqualifies the bid regardless of price.