Every project has a version of this moment: the client sees the demo'd wall and asks "while you're in there, can you also move the outlet?" It's a small, reasonable request — and it's also the exact moment where scope creep begins, budgets quietly grow, and trust either strengthens or erodes depending on how it's handled.
Why change orders exist
A change order is a formal amendment to the original agreement — new work, added scope, or a material change, with its own price and (if relevant) timeline impact, agreed to in writing before the work happens. The alternative — just doing the extra work and figuring out the money later — is where most contractor-client relationships actually break down, not over the original bid.
Without a change order process, one of two bad things happens: the contractor eats the cost of extra work to avoid an awkward conversation (and profitability quietly erodes, invisible until the books don't add up at year-end), or the contractor does the work and then presents a surprise bill at the end (and the client feels ambushed, even if the work was genuinely requested).
What triggers a legitimate change order
Client-requested additions. "Can you also paint the hallway while you're here" — new scope, needs its own price.
Discovered conditions. Rot behind a wall, outdated wiring that doesn't meet current code, a pipe that isn't where the plans indicated. This is exactly why the "assumptions" section of a scope of work matters — if you wrote "assumes subfloor is sound; additional repair quoted separately if damage is found," a rotted subfloor isn't a dispute, it's a pre-agreed change order.
Material changes. The client decides on a different tile after seeing samples, or a specified material is out of stock and a substitute costs more. Worth distinguishing from a scope addition — this is a material swap, priced as the difference, not a whole new line item.
Code-required work. Sometimes opening a wall reveals wiring or plumbing that must be brought to code regardless of whether it was part of the original plan — not optional, but still needs to be priced and communicated, not silently absorbed or silently done without discussion.
What a good change order includes
Keep it simple but complete: description of the added or changed work, the price (itemized if it's substantial — labor and materials broken out, same as the original estimate), any timeline impact, and a signature or written approval before the work proceeds. It doesn't need to be complicated — a one-page form or even a clear text/email confirmation works, as long as it exists in writing and both sides agreed before the work happened, not after.
The conversation matters as much as the paperwork
How you raise a change order affects whether the client feels informed or ambushed. Compare:
"So I did the outlet move, that'll be another $340 on the final bill."
versus
"Moving that outlet is straightforward — it'll add about $340 and roughly half a day. Want me to go ahead, or leave it where it is?"
Same fact, same price, completely different experience for the client. The second version treats them as a decision-maker, not someone informed after the fact. This costs nothing extra and is the single highest-leverage habit for keeping client relationships smooth through a project with inevitable changes.
Pricing a change order fairly
Use the same rates and materials pricing as the original estimate — a change order isn't the moment to quietly raise your hourly rate because the client is now committed to the project. Consistency here is what makes clients trust the number without needing to negotiate it, which saves everyone time and friction on every future change.
For discovered conditions specifically (the rotted subfloor, the outdated wiring), it's reasonable and normal for pricing to reflect the actual complexity of the fix — this isn't the contractor's error to eat, and framing it that way to the client (with the assumption clause from the original scope as backup) keeps the conversation factual rather than adversarial.
Building change orders into your workflow
The contractors who handle this best don't treat it as an exception process bolted onto the job — they set the expectation before the project even starts. A line in the original agreement ("any changes to this scope will be documented and priced before work proceeds") means nobody's surprised when the first change order comes up, because everyone already agreed to the process.
Since a change order is really just a mini-estimate — new line items with their own labor and material pricing — the same structure that makes your original estimate clear (task-level labor, itemized materials) makes change orders fast to generate and easy for the client to understand, because they're already used to reading estimates in that format.
JobPencil's line-item structure works naturally for this — duplicate the relevant sections, adjust for the new scope, and you have a change order in the same clear format as the original estimate. Build and manage your estimates free, no account required until you save.