What is a Change Order — and Should You Sign It?

You hired a contractor, signed a contract, and agreed on a price. Everything is set.

Then, two weeks into the project, you get a piece of paper asking you to sign off on additional costs. Maybe it's $800. Maybe it's $4,000.

That piece of paper is a change order. And how you handle it will either protect your budget or blow it up.

What is a change order?

A change order is a formal document that modifies the original contract. It describes a change in scope, cost, or timeline, and it requires your signature before any additional work begins.

Change orders happen on almost every renovation project. They are not a sign that something went wrong. They are a sign that construction is happening in the real world, where walls get opened, and surprises get found. The problem isn't the change order itself. The problem is signing one without understanding what you're agreeing to.

Why do change orders happen?

There are three main reasons:

The first is discovery. No contractor can predict what's hiding behind your walls. Old wiring that doesn't meet code. A subfloor that's rotted through. Mold behind the tile. These are legitimate surprises, and while a good contractor will flag the possibility of hidden issues before work begins, nobody can guarantee what they'll find once demolition starts. What's important is that the conversation happens early, and that you understand some of these changes are not optional. If existing conditions aren't code-compliant, that work has to be done. Full stop. A contractor who skips it to save you money is doing you no favors.

The second is homeowner-driven changes. You decided you want the island moved. You upgraded the tile after the original quote. You added a cabinet upgrade mid-project or requested custom carpentry that wasn't in the original scope. Every one of those decisions changes the scope and the price. That's fair. Just own it when the change order comes.

The third is scope creep. And this one is worth paying close attention to. Sometimes it's a gradual expansion, a little extra here and a small addition there. But sometimes it's the items that should have been in the original estimate from the start that are missed. Every kitchen remodel will involve plumbing and electrical work. If those aren't in your estimate, you should be asking why before you sign the contract, not after the work begins. A thorough estimate accounts for the full scope. Gaps in the original estimate often show up as change orders later.

Before you sign — ask these questions:

Is this work actually necessary? If a contractor says the subfloor needs replacing, ask to see it. A good contractor will show you. If they can't explain why the work is needed in plain terms, that's worth a second opinion.

Was this included in the original scope? Pull out your contract and check. Sometimes additional charges are for work that was already included. It happens more than people think - not always intentionally - but it happens.

Is the price reasonable? A change order should include a breakdown of labor, materials, and any subcontractor costs. A lump sum with no explanation is a red flag, unless it is for a specific item or upgrade. You have the right to ask for an itemized breakdown.

Does it affect my timeline? Cost isn't the only thing a change order can change. Additional work often means additional days. Make sure you understand the schedule impact before you sign.

What if you disagree with a change order?

You are allowed to push back. A change order is a negotiation, not a demand.

Ask questions. Request documentation. If the work is genuinely necessary, a professional contractor will have no problem explaining it clearly. If they get defensive or pressure you to sign immediately, slow down.

That said, taking your time doesn't mean taking all the time in the world. A contractor is running a schedule with multiple trades, deliveries, and other commitments. If it takes you a week to make a decision, that doesn't mean they sit idle waiting for you. Delays on your end have real consequences, for the schedule, for the crew, and sometimes for the cost. Understand what you're signing, but be responsive. A good project is a two-way street.

The bottom line

Change orders are a normal part of construction; they are not the enemy and not necessarily a mistake. What matters is that you understand every one you sign.

Read it, ask questions, verify that the work is necessary, and confirm the price is fair. Then sign with confidence.

A well-managed project isn't one without change orders. It's one where every change order is understood and agreed to by both sides.

That's the partnership that gets the job done right.

Charlie The Field PM | thefieldpm.com