You receive a change order from your contractor. The price is higher than you expected. You do not fully understand what triggered it. You feel pressured to sign because the work is already behind schedule.

This is the moment most owners get hurt financially. A change order—a written amendment to your contract that adjusts scope or price—is not a request for approval. It is a request to pay more. You have the right to question it, and you should.

Why change orders happen and why they matter

Change orders exist for legitimate reasons. A contractor uncovers hidden conditions—rotted framing, outdated wiring, soil that is not what the survey predicted. The scope of work changes because you decide you want something different. Materials are delayed and labor costs rise. These things are real.

But change orders are also where the information difference between you and your contractor becomes most dangerous. The contractor knows the actual cost of the work. You do not. The contractor knows whether the work was truly unforeseen or simply poorly estimated. You do not. The contractor controls the narrative because they control the documentation.

I have seen homeowners pay for the same work twice—once in the original contract and again in a change order. I have seen contractors estimate change order work at 40 percent above market rate because they know most owners will not question it. These are not acts of dishonesty. They are the result of owners not having the information they need to push back.

Step 1: Request the full scope change order in writing

Do not accept a change order that arrives as a text message, email summary, or verbal explanation. Insist on a formal written document that spells out exactly what work is changing, why, and what the new cost is.

• Tell your contractor that you need the change order in writing before work proceeds—do not allow them to start the work and bill you later
• Ask them to describe the scope change in specific language, not general terms like “additional work as needed”
• Request itemized pricing that breaks down labor, materials, equipment, and overhead separately
• Ask for the effective date and how it affects the project timeline
• Confirm whether this is an addition to the contract price or a reallocation of existing contingency
• Do not sign anything until you have the full document in hand

Example: Instead of “Additional framing $4,500,” require “Remove 8 linear feet of rotted rim board and sister new pressure-treated 2×8. Supply and install, including hardware and fasteners. Labor: 24 hours at $85/hour = $2,040. Materials: $980. Total: $3,020.” The specificity makes it possible to verify.

Step 2: Verify the work was truly unforeseen or necessary

The most common disputes happen when a change order claims something was unforeseen that should have been caught during planning. Your job is to determine whether the change is truly legitimate or whether it reflects inadequate initial scoping.

• Review your original scope of work and drawings to see if this condition was identified beforehand
• Ask the contractor for photographs, inspection reports, or structural engineer assessments proving the condition exists
• If the change is design-related, ask whether your architect should have caught this during design development
• Question whether the change order is necessary or optional—some items contractors present as mandatory are actually upgrades
• Ask your architect or an independent inspector to review the proposed work and confirm it is necessary
• For recurring change order items (like “hidden conditions”), ask why your initial site assessment did not flag these risks

Example: Your contractor submits a change order for $8,000 to address “unexpected foundation cracks.” Ask them: Do the drawings or inspection reports from pre-construction show these cracks? If not, ask your architect whether the foundation inspection should have identified this. If the cracks are cosmetic, ask whether they are actually necessary to repair or whether this is an optional upgrade.

Step 3: Challenge the pricing and request cost documentation

Even if the work is legitimate, the price may not be fair. Contractors often estimate change order work at higher rates than they do original contract work because they know change orders are harder to question. Do not accept the first number they give you.

• Ask the contractor for an itemized breakdown of labor hours, hourly rate, material costs, and equipment rental—not just a lump-sum total
• Request supplier quotes for materials so you can verify the material costs are market-rate, not inflated
• Ask what hourly rate they are charging—compare it to the rate in your original contract for the same trade
• For work performed by subcontractors, ask the contractor to provide the subcontractor’s quote to them, not just their markup
• Get quotes from other contractors for similar work if the change order is significant ($2,000 or more)
• Ask whether the change order includes a contingency or overhead markup on top of actual costs—many contracts limit this to 10-15 percent

Example: A change order for electrical work is quoted at $6,200. Ask your contractor for the actual cost from the electrician plus their markup. If they are marking up 30 percent on top of a $4,000 subcontractor cost, but your contract specifies a 15 percent markup, you have found your dispute point. The fair price is $4,600, not $6,200.

Step 4: Review the contract language that governs change orders

Your original contract contains specific language about how change orders are handled—how much markup the contractor can add, what conditions trigger a change order, and how disputes are resolved. Use this language as your leverage.

• Find the section in your contract that defines change orders and what triggers them
• Check whether your contract limits markup or overhead on change order work—many contracts do
• Review whether your contract requires the contractor to provide cost estimates before performing the work, or only after
• Look for language about what is the contractor’s responsibility versus yours (e.g., “unforeseen conditions” versus design changes)
• Check whether your contract requires architect or owner approval before work proceeds on a change order
• If your contract addresses contingency funds, verify whether this change order is pulling from contingency or is an addition to the total price

Example: Your contract states “Change orders for unforeseen conditions shall be priced at actual cost plus 12 percent overhead and profit.” The contractor submits a change order at actual cost plus 25 percent. You have the contract language to support your dispute. The fair price is 12 percent, not 25 percent.

Step 5: Document your questions and send them in writing

Do not dispute a change order in a phone call or a casual email. Send a formal written document that outlines your specific questions and concerns. This creates a record and forces the contractor to respond in writing, which makes their answers binding.

• List each item in the change order and state specifically what you are questioning about it
• Ask for specific documentation: photographs, quotes, invoices, timesheets, engineer reports
• Reference the contract language that supports your position
• Set a deadline for the contractor to respond—typically 5-7 business days
• Copy your architect or owner’s representative if you have one
• Keep the tone professional and factual, not accusatory—you are asking for clarification, not accusing them of dishonesty
• Number your questions so the contractor cannot accidentally skip one

Example: “Item 3: Electrical rough-in adjustment for structural change, $3,400. Question 1: Please provide the electrician’s original quote for rough-in work per the drawings. Question 2: Please provide their quote for the revised rough-in work. Question 3: What is the difference between these quotes, and why does your change order total $3,400 when the electrician’s cost difference is $1,800? Please respond by March 15.”

Step 6: Negotiate or refuse to sign

Once the contractor responds to your questions, you have the information you need to make a decision. You can approve the change order as written, negotiate a lower price, or refuse it—those are your options.

• If the contractor’s documentation supports the change order at the quoted price, approve it in writing
• If the documentation shows the price is inflated, make a counteroffer based on what the actual cost should be
• If the change is truly unnecessary or is the contractor’s responsibility, refuse to sign and explain why in writing
• If you refuse a change order for optional work, confirm in writing that the contractor should proceed with the original scope
• If the contractor refuses to lower the price and you believe it is unjustified, do not approve it—consult your attorney
• For significant disputes, request an independent estimate from another contractor before deciding

Example: The contractor’s documentation shows that materials actually cost $800, labor was 16 hours at $75/hour ($1,200), and they are marking up 20 percent. The fair total is $2,400. The change order was $3,100. You counter at $2,400. If they refuse, you have the documentation to support refusing approval until they come down to a fair price.

What to watch for

• Change orders that arrive after work is already complete—this removes your power to negotiate or refuse because the work is done
• Multiple small change orders that seem related—sometimes contractors break one large change into several small ones to avoid scrutiny
• Vague language like “additional labor as needed” or “unforeseen conditions allowance”—these are blank checks, not specific scope items
• Pressure to sign immediately because “we need to keep the schedule moving”—time pressure is a negotiating tactic, not a legitimate reason to waive your right to review
• Change orders that adjust the original contract price downward, then add it back in a change order—this is accounting manipulation, not scope adjustment
• Pattern of change orders from the same contractor on multiple projects—this suggests a systematic underestimation problem, not genuine unforeseen conditions

Questions to ask your contractor

These questions are designed to extract the specific information you need to evaluate whether a change order is necessary and fairly priced. Ask them in writing and require written responses.

• Was this condition visible during the pre-construction site visit or inspection?
• Is this work required to meet code, or is it optional?
• What is your actual cost for this work, broken down by labor hours, hourly rate, and materials?
• What is the supplier’s or subcontractor’s cost for materials or labor?
• What percentage markup are you applying to this change order, and does it match the markup in our contract?
• Can you provide a quote from your supplier for the materials, dated before you submitted this change order?
• How many labor hours does this work actually require, and what trade is performing the work?
• If this is design-related, did our architect review and approve the change before you quoted the cost?
• Is this work pulling from the contingency fund we established, or is it an addition to the contract price?
• Can you provide a photograph or inspection report documenting the condition that triggered this change order?

The bottom line

You do not have to approve a change order just because your contractor submitted one. Your job is to understand whether the work is necessary and whether the price is fair. Get it in writing, ask specific questions, verify the pricing, and do not sign until you have answers that make sense. If the contractor cannot document why the change is necessary or how they arrived at the price, that is a reason to push back or refuse.

The goal is not to fight your contractor. The goal is to close the information gap so you can make an informed decision. Once you have that information, most disputes resolve quickly because both sides are working from the same facts.