Construction Change Order Management Guide

1. What Is a Change Order?

A change order is a written amendment to the original construction contract that documents a change in scope, schedule, or price. Change orders can be initiated by the owner, architect, general contractor, or subcontractor, and they are one of the most important financial tools in construction project management.

According to industry data, change orders account for 10-15% of total project cost on average. On complex commercial projects, that figure can reach 20-30%. Yet many small contractors fail to capture this revenue — either because they don't recognize scope changes, don't document them properly, or are reluctant to ask for compensation.

The fundamental rule: never perform out-of-scope work without written authorization. Verbal approvals disappear. Owners forget. Superintendents leave. If it's not in writing, it's your cost.

2. Identifying Scope Changes Early

The earlier you identify a scope change, the easier it is to price, negotiate, and get approved. Changes that surface after the work is done are nearly impossible to collect on.

Common Triggers for Change Orders

Field Signals to Watch For

• Superintendent says "just do it for now and we'll figure out the paperwork later"
• New drawings arrive on-site that don't match your bid set
• You're asked to work in areas not included in your scope
• Existing conditions don't match what was shown in the contract documents
• Your crew is waiting on others repeatedly (lost productivity)

3. How to Price a Change Order

Change orders should be priced the same way you price the original estimate — with current material costs, burdened labor rates, equipment, and appropriate markup. The difference is that change order work is often performed under less favorable conditions: tighter schedules, constrained access, small quantities, and crew disruptions.

Change Order Pricing Components

• Direct materials — At current pricing, not your original estimate. Get a fresh quote.
• Direct labor — Burdened hours at the actual rate for the crew performing the work. Include supervision.
• Equipment — Any additional rentals, lifts, or specialized equipment needed for the change scope.
• Subcontractor markups — If the change affects your subs, mark up their quotes by your standard overhead and profit.
• Disruption and impact costs — Lost productivity when change work interrupts planned sequences. This is often underpriced.
• Overhead and profit — Apply the same markup as your base contract. Change orders are not charity.

Tip: Some contracts limit your markup on change orders (e.g., "overhead not to exceed 10%, profit not to exceed 5%"). Review your contract carefully and negotiate these caps before you sign — not after a change order dispute.

Time and Material vs. Lump Sum

For well-defined scope changes, a lump sum change order is cleanest — one price, one approval, done. For undefined or evolving scope (exploratory demolition, hazmat remediation, emergency repairs), time and material (T&M) work is more appropriate. On T&M work, have a daily ticket signed by the superintendent at the end of each shift.

4. The Approval Process

A properly executed change order requires authorization from the right party. On most projects, that means signed approval from the owner or owner's representative — not the superintendent, not the architect, unless your contract specifies otherwise.

Change Order Workflow

1. Identify the change — Document it in writing the day you discover it. Email, field report, or formal notice.
2. Issue a Change Order Request (COR) — Submit a detailed pricing breakdown with labor, material, and markup. Set a response deadline (typically 7-14 days).
3. Negotiate if needed — Don't discount reflexively. Know your floor. Walk away from scope you can't price profitably.
4. Get written approval — A signed change order, purchase order, or email authorization from the right party.
5. Execute the work — Only after authorization, unless emergency conditions require otherwise (and even then, document immediately).
6. Include in billing — Add the approved change order to your next pay application.

If you're repeatedly asked to "start the work and we'll approve it later," that's a red flag. Keep a log of every request and your response. If the customer refuses to put things in writing, escalate or stop work.

5. Common Change Order Mistakes

6. Documentation and Recordkeeping

Change order disputes are won or lost on documentation. The contractor who has the most organized, timestamped paper trail wins — in negotiations and in court.

What to Document

• Daily work reports — Crew sizes, hours worked, equipment on-site, weather conditions, and what was accomplished.
• Photos — Before, during, and after every change order scope. Date-stamped and tied to the specific COR number.
• Correspondence — Every email, text, and letter related to the change. Forward field texts to a project file.
• Time and material tickets — Signed daily by the superintendent on T&M work.
• Drawing logs — Track every drawing revision received, by date. Compare RFI responses to original plans.
• Change order log — A running summary of every COR submitted, its status (pending, approved, rejected), and the dollar amount.

Maintain a change order log from day one, even before any changes arise. When a dispute happens at the end of a project, you'll have a clear, documented history of every change — when it was requested, when you responded, and what happened.

7. Managing Change Orders with Software

Tracking change orders in spreadsheets or email threads is how contractors lose money. By the time a project wraps up, it's nearly impossible to reconstruct what was approved, what was pending, and what was built into the final billing.

Construction management software like RivetCORE gives you:

• Integrated change order tracking tied to the original estimate and project budget
• Status workflow — Draft, submitted, approved, rejected — with timestamps and responsible party
• Professional change order documents ready for owner signature, with breakdown of materials, labor, and markup
• Automatic budget updates when change orders are approved, so your project financials are always current
• Pay application integration so approved change orders roll into your next billing automatically

The goal is to make submitting and tracking change orders so frictionless that your PMs do it every time, without exception — because every undocumented change is money left on the table.