ContractBuilderAI

    CALIFORNIA CHANGE ORDER SOFTWARE

    California change order software for home improvement contractors

    Keep project changes tied to the signed contract. ContractBuilderAI gives California home improvement contractors a guided change-order workflow for scope, price, payment-schedule and completion-date changes — from draft through signature and executed PDF.

    Last reviewed: October 3, 2026

    Change orders tied to the signed contract

    In ContractBuilderAI, the change-order workflow becomes available once the original contract is fully executed — signed by the owner and countersigned by the contractor. From that point, every change order you create stays associated with that project and its contract.

    When you open a change order, you see the contract-price context: the previous contract price and what the price becomes if the change is executed. You are not re-typing project details into a blank document or hunting for the right contract total.

    That is the practical difference from a detached workflow, where a change order lives in a Word file, a PDF and an email thread that have to be matched back to the job by hand.

    From project change to executed record

    1. STEP 1

      Create draft

      Start a change order from the signed project. Give it a title, choose the change type and describe the changed work.

    2. STEP 2

      Review price and schedule effects

      Enter the amount added or subtracted, then review the previous and new contract price, the effect on progress payments and the completion-date effect.

    3. STEP 3

      Preview the change-order PDF

      Open a PDF preview of the change order so you can check it before anything is sent.

    4. STEP 4

      Send for owner signature

      Email a signing link to the owner or second owner. Resend it if the owner needs a fresh link.

    5. STEP 5

      Contractor countersigns

      Once the owner has signed, the contractor reviews the signed change order and countersigns it.

    6. STEP 6

      Execute and retain the final PDF

      Countersigning executes the change order. The executed PDF is stored with the project and can be downloaded.

    Each step is part of one signature workflow, so the draft, the signed copy and the executed PDF are all the same change order rather than separate files.

    What the change-order workflow captures

    Title and description

    A short title plus a written description of the extra, changed or removed work.

    Change type

    One of the supported change kinds, so similar changes are labelled consistently.

    Add or subtract amount

    The amount added to or subtracted from the contract price.

    Previous and new contract price

    The previous contract price and the calculated new contract price for this change.

    Progress-payment schedule effect

    A written statement of the effect on the schedule of progress payments.

    Optional progress-payment milestone

    Optionally associate the change with a specific progress-payment milestone.

    Completion-date effect

    The completion-date effect in days — added, removed or none.

    Optional revised completion date

    Optionally record a revised completion date for the project.

    Common change types already supported

    Every change order is labelled with one of these change kinds:

    • Scope change
    • Material price adjustment
    • Allowance reconciliation
    • Schedule change
    • Credit to owner
    • Other

    Consistent labels make it easier to see, at a glance, whether a project's changes came from added work, material pricing, allowances, timing or credits back to the owner.

    See the contract-price effect before you send

    The previous contract price comes from the project's contract workflow. When you enter the amount added to or subtracted from the contract, the draft shows the resulting new contract price, so you can check the figure before the owner ever sees it.

    When a change order is executed, the project's current contract-price record is updated to reflect it. Later change orders then start from that updated price.

    These figures are a record of the agreed contract price. ContractBuilderAI does not process payments or provide accounting advice.

    Send, sign, countersign and retain

    • Email a signing link to the owner or the second owner on the contract.
    • Send the change order, and resend the signing link if it is needed again.
    • See when the owner has signed — the change order moves to an owner-signed state.
    • Review the owner-signed change order and add the contractor countersignature.
    • Countersigning executes and finalizes the change order.
    • Download the stored executed PDF whenever you need it.
    • Sent, signed and executed status stays associated with the change order.

    If a draft or sent change order should not go ahead, it can be voided with a written reason, and the voided status is kept with the record.

    Project-linked workflow vs. separate change-order files

    Comparison of separate change-order files and the ContractBuilderAI project-linked workflow
    AreaSeparate Word/PDF + emailContractBuilderAI
    Contract relationshipA separate file that has to be matched to the contract by handCreated from, and kept with, the fully signed project contract
    Price effectPrevious and new totals calculated and typed manuallyPrevious contract price and calculated new contract price shown in the draft
    Payment/schedule effectWritten into the document separately, if rememberedDedicated fields for progress-payment effect, optional milestone and completion-date effect
    Signature workflowPrint, scan or use a separate signing toolEmailed owner signing link, then contractor countersignature
    Status/historyTracked in email threads or spreadsheetsSent, signed, executed and voided status stays with the change order
    Final recordSaved wherever the last copy landedExecuted PDF stored with the project and available to download

    California requirements still matter

    This page explains the software workflow. For the legal background — what a California change order should identify and when written authorization is needed — read the California contractor change order requirements guide.

    The contractor remains responsible for determining the legal requirements that apply to each project and each change. Primary sources include Business and Professions Code §7159 and the CSLB page What Is a Home Improvement Contract?

    Built for contractor control — not autopilot

    The contractor enters and reviews every change, amount and date.

    The software organizes the workflow and keeps the records together. It does not decide every legal issue for a particular change.

    The contractor remains responsible for final review before sending and countersigning, and should obtain legal review when appropriate.

    California private beta opens November 1, 2026

    ContractBuilderAI is accepting applications from licensed California home improvement contractors for the private beta.

    Apply for the California beta →See the full California contract workflow

    Building California contracts should not start from a blank page.

    ContractBuilderAI is opening a California private beta on November 1, 2026 for licensed home improvement contractors.

    Apply for the California beta →

    Educational information only. ContractBuilderAI is not a law firm and does not provide legal advice. Laws and agency guidance change. Confirm current requirements for your project and obtain legal review when appropriate. See our research & editorial standards.