How to Handle Change Orders Without Derailing Your Project

Your contractor submits a change order mid-project. The scope has shifted. The price has gone up. You have no idea if the number is fair or if you even need the work. This is where most projects slip off budget and timeline.

Why change orders happen and why they matter

A change order is a written amendment to your contract that adjusts scope or price. They are not a sign of failure. I have built homes with talented professionals and still issued change orders. They happen because unforeseen conditions emerge, decisions change, or the original scope was incomplete.

The problem is timing and visibility. Many owners don’t see a change order until work is already underway or finished. By then, you are negotiating after the fact, with less leverage. You also cannot see the cumulative effect — five small change orders become fifteen percent over budget.

A contractor is not being dishonest by issuing change orders. They are doing their job. The issue is that they see the full picture of what is needed before you do. That information difference is what you have to manage.

Step 1: Establish a change order process before work starts

The time to set expectations is in your contract, not when the first change order arrives. Make it clear that all changes must be in writing and approved before work begins. No verbal approvals. No “we’ll figure it out later.”

• Require your contractor to submit a written change order request at least 48 hours before the affected work is scheduled
• Include a clause in your contract that states no work outside the original scope will be performed without a signed change order
• Specify who has authority to approve changes on your end (you, your architect, your owner’s rep) so the contractor knows exactly who to ask
• Define “scope” clearly in your original contract so there is less gray area about what is included
• Agree on a format for change orders upfront (contractor uses a standard template, includes specific line items, includes timeline impact)

Example: Your contract states: “All change orders must be submitted in writing and signed by the owner and contractor at least 48 hours before work begins. Change orders must include a detailed description of the work, the price impact, and any effect on schedule. Verbal approvals or implied changes do not constitute a valid change order.”

Step 2: Request a detailed breakdown immediately upon receipt

When a change order arrives, your first instinct may be to approve or reject based on price. Resist that. You cannot evaluate a change order without understanding what is actually being changed. Ask questions before you decide.

• Ask the contractor to explain in plain language what work is being added, removed, or modified
• Request a line-item breakdown showing labor, materials, equipment, and any other costs separately (not a lump sum)
• Ask for the reason the change is needed (what condition triggered this, or whose decision is driving it)
• Request clarification on whether this work was originally in the scope or is genuinely new
• Ask for the timeline impact: how many days will this add or remove from the schedule
• Request supporting documentation if the change is driven by unforeseen conditions (photos, site observations, or reports)

Example: The contractor submits a change order for “additional framing: $8,500.” You ask why. They explain that the beam under the kitchen addition is undersized and will not pass inspection. They provide a structural engineer’s report. You can now evaluate whether the original design was faulty or if site conditions changed.

Step 3: Verify the scope against your original documents

Before you evaluate price, confirm whether this work was actually supposed to be in the original contract. Many change orders exist because the original scope was unclear or incomplete. Clarifying this protects you from paying twice for the same work.

• Review your original drawings and specifications to see if this work is shown or described there
• Check your original bid or proposal to see how this item was listed or if it was excluded
• Look at your contract language around what is and is not included (many contracts have exclusions listed)
• Ask your architect (if you have one) whether this work is within the original scope
• If the work was in the original scope but is now being charged as a change, push back immediately

Example: Your bathroom renovation included “tile work per plans.” The tile schedule on the original drawings shows subway tile in the shower. The contractor now submits a change order for “upgraded tile selection: $3,200.” You check the original bid. The bid was for standard subway tile at $35 per square foot. The upgrade is marble at $85 per square foot. This is a legitimate change order, not something that was missed.

Step 4: Evaluate the price against market rates and your original bid

Now you compare numbers. Is the price reasonable for the work being described. You do not need to be a contractor to sense when a number is inflated. You have context from your original bid.

• Calculate the per-unit cost: if the change is for additional framing, divide the total by square footage or linear feet to get a per-unit price
• Compare this price to the per-unit cost in your original contract for similar work
• Ask your contractor to break down the markup percentage and confirm whether this is the same markup used in the original bid
• If the price seems high, ask the contractor to justify it (has material cost increased, is labor more difficult, does complexity warrant the premium)
• Consider getting a second opinion: call a local contractor or supplier and ask if the price for that specific work is reasonable
• Do not assume every change order is padded — sometimes costs genuinely increase mid-project due to market conditions or complexity

Example: Your original electrical bid was $15 per linear foot for new circuits. A change order for “additional circuits due to HVAC relocation” is priced at $2,000 for 100 linear feet, or $20 per foot. That is a modest increase and may account for the extra complexity of rerouting. A change order at $35 per foot would warrant a conversation.

Step 5: Assess the impact on budget and timeline

A single change order may seem manageable, but the aggregate effect destroys projects. You need to see the cumulative picture and make intentional decisions about which changes you can absorb.

• Track every change order in a log with date, description, cost, and timeline impact (we have guidance on how to track and manage documents on your project)
• Add up all change orders to date so you know your total cost overrun in real time, not at the end of the project
• Assess whether you have contingency remaining (a reserve fund for unforeseen costs — typically 5-10 percent of budget)
• Ask the contractor whether further changes are anticipated or whether this resolves the scope issue
• Decide: can you approve this change, should you scope it down, or do you need to defer it
• If the change is driven by your decision (not site conditions), acknowledge that this is your cost to absorb

Example: Your $500,000 renovation has seen $35,000 in change orders so far (7 percent). Your contingency was $30,000. You have $2,000 remaining cushion. A $15,000 change order for an HVAC fix due to undersized ductwork is legitimate, but it will consume your contingency. You now have to decide: absorb it, find savings elsewhere, or increase your budget.

Step 6: Make a deliberate decision and document it

Once you have reviewed, verified, and evaluated a change order, make a clear decision. Approve it, reject it, or ask for a revised proposal. Document your reasoning. This protects both you and your contractor and creates a record of how your project evolved.

• If you approve: sign and return the change order promptly so work is not delayed. Your signature is authorization and acceptance of the new price
• If you reject: explain why in writing. Give the contractor a path forward if one exists (lower price, smaller scope, deferred work)
• If you need revisions: be specific about what you need — lower price, different approach, phased timeline — so the contractor understands your concern
• Keep a copy of every change order (approved or rejected) in your project file
• Update your change order log and your project budget forecast after every decision
• If change orders are frequent, sit down with your contractor and discuss patterns — are you making design decisions late, are they seeing scope issues they did not disclose upfront

Example: You review a $6,000 change order for additional foundation work. You approve it in writing, stating: “Approved as submitted. Cost to be paid with the next draw request. Timeline impact noted as 3 days. This will be documented in the final project closeout.” You also note in your change order log that this is now the third foundation-related change, suggesting the original scope may have been incomplete.

What to watch for

• Change orders submitted after work is already complete — this removes your ability to approve or reject before costs are incurred
• Verbal change orders or text message approvals — always require written documentation so there is no dispute later
• Change orders that reference work you do not recall discussing or authorizing — pause and ask for clarification
• A pattern of change orders from the same contractor, especially for similar types of issues — this suggests either scope problems upfront or a contractor padding the project
• Change orders without line-item detail — lump sums hide where money is actually going
• Requests to “charge it to contingency” without a formal change order — your contingency is not a blank check
• Changes presented as emergency or rush work commanding premium pricing — most genuine emergencies warrant the premium, but verify the urgency is real

Questions to ask your contractor

These questions should feel natural in conversation. You are not interrogating. You are making sure you have the information you need to make a good decision.

• Can you walk me through exactly what has changed from the original scope?
• Why was this not discovered during the planning phase or initial site survey?
• Is this work required to meet code or pass inspection, or is it optional?
• If this is required, who is responsible for the cost — is this a design issue or a site condition issue?
• Can you provide a line-item breakdown of labor, materials, and any overhead or markup?
• How does this price compare to what you bid for similar work in the original contract?
• How many days will this add to the schedule, and what is the effect on your other crews or trades?
• If I ask you to value-engineer this (reduce scope or cost), what options do you have?
• Are there other changes anticipated, or does this resolve the scope issue?
• Can you provide a photo or engineer’s report documenting the condition that triggered this change?

The bottom line

Change orders are not failures. They are a normal part of construction. What determines whether they sink your project is whether you handle them with process and visibility. Review early, understand completely, verify scope, evaluate price, and track the aggregate. Do this consistently, and you stay in control of your budget and schedule.

If you need help understanding a change order or want a second set of eyes on whether a price is reasonable, talk to your architect or an owner’s representative. But do not sign anything you do not fully understand. Your signature is a commitment.