Before you sign a commercial contractor proposal, compare the scope, exclusions, allowances, schedule, and payment terms—not just the bottom-line price.
What to review first in a commercial contractor proposal
- Scope and drawings. Confirm every trade, finish, permit responsibility, utility tie-in, and owner-supplied item is listed.
- Exclusions. Ask what is missing and price it before comparing bids.
- Allowances. Check whether allowances match the quality and local cost of the intended work.
- Schedule. Identify procurement lead times, approvals, inspections, and the conditions that move the completion date.
- Changes and payment. Understand change-order markup, retainage, pay applications, lien releases, and closeout documents.
How to read a commercial contractor proposal line by line
The five items above are the checklist. What follows is how to actually work through a commercial contractor proposal in an afternoon, in the order that surfaces the biggest dollar exposure first. It assumes you have the proposal, the drawings it was priced from, and any clarifications or bid alternates the contractor issued.
Step 1 — Map the proposal to the drawings
Open the drawing set and the commercial contractor proposal side by side. For every sheet — demolition, architectural, structural, mechanical, electrical, plumbing, fire protection — find the line in the proposal that covers it. Anything on the drawings with no line in the proposal is either an exclusion you have not been told about or an assumption the contractor made. Write both down. This single step finds more money than any other part of a commercial contractor proposal review.
Step 2 — Price the exclusions before you compare bids
Two proposals are never for the same job until the exclusions are priced. If one contractor excludes permit fees, low-voltage, and the fire alarm and the other includes them, the “cheaper” commercial contractor proposal can be the more expensive build. Put a number next to every exclusion, using a supplier quote or a recent comparable, and add it to the base price before ranking the bids.
Step 3 — Test every allowance against a real quote
Allowances are placeholders, and a placeholder set low is a price increase you have not been told about yet. For each allowance in the commercial contractor proposal — flooring, casework, fixtures, signage, tile — get one real quote for the quality you actually intend to install. In Houston, an allowance that is 30 to 50 percent under the real number is common, and the difference arrives later as a change order with markup on top.
Step 4 — Rebuild the schedule from durations, not the end date
A schedule that shows a completion date is a promise; a schedule that shows durations is a plan. Ask for the trade-by-trade durations behind the commercial contractor proposal and check them against permitting, long-lead procurement, and inspection lead times. Commercial permits in Houston run through the Houston Permitting Center, and the review cycle alone can consume weeks that a proposal shows as days.
Step 5 — Read the contract terms as carefully as the price
Payment schedule, retainage, change-order markup, delay language, and lien-waiver requirements decide how the price behaves once construction starts. Where the commercial contractor proposal references a standard form, read the modifications against the base AIA contract documents. Where lien rights are involved, the Texas waiver and notice rules are in Property Code Chapter 53, and the contract should require waivers in that statutory form with every pay application.
Step 6 — Turn the findings into a question list
The output of a commercial contractor proposal review is not a verdict; it is a short list of specific questions to put back to the contractor before you sign. Most contractors answer them readily, and the answers either close the gap or confirm it. Either way, the owner signs knowing what the number really covers.
Red flags in a commercial contractor proposal
- A single lump sum with no schedule of values or trade breakdown.
- Allowances that total more than 10 to 15 percent of the price.
- “Per plans and specs” with no list of which plans and which revision date.
- Change-order markup above 15 percent, or no stated markup at all.
- A completion date with no durations behind it.
- Payment terms that front-load more than 10 percent before any work is in place.
None of these makes a commercial contractor proposal bad on its own. Each one is a place to ask a question before it becomes a place to lose money.
What a commercial contractor proposal review costs to skip
The pattern on projects that go wrong is consistent. The owner accepted the lowest bid without pricing its exclusions, the allowances came in short in month two, the schedule slipped on permitting nobody had planned for, and the change orders carried a markup the contract never capped. Each of those was visible in the commercial contractor proposal before signature. An afternoon with the drawings and the proposal, or a few hundred dollars for an independent review, is the cheapest money an owner will spend on the whole build.
Questions that expose risk in a commercial contractor proposal
- What assumptions are built into the price?
- Which items are not included?
- Who owns permits and utility coordination?
- What happens if an allowance is short?
- How are schedule delays documented and priced?
When an owner-side commercial contractor proposal review helps
An independent review translates proposal language into cost and schedule exposure before commitment. Epex Consulting reviews commercial proposals, budgets, schedules, and project decisions for owners, developers, investors, and franchise operators.
Book a project review or learn about contractor proposal review.