Change orders
How to Manage Change Orders Without Losing Profit
6 min read
Change orders are where a lot of contractor profit quietly leaks out. The work gets done, the customer's happy — but it was never priced, never signed, and never paid for.
This guide covers how to handle change orders so they protect your margin instead of eroding it: why they get skipped, how to price and sign them, and how to keep them organized against the original job.
Why Change Orders Get Skipped (and Why That's Expensive)
In the moment, formally documenting a small add-on feels like overkill — especially with a customer you trust and a job that's already moving. So it gets a verbal "yeah, no problem" and the paperwork never happens.
But those small skipped change orders add up fast across a single job, and even faster across a year. Unbilled change orders are a documented, named cause of margin loss in specialty trades specifically — it's not a rounding error, it's one of the leading ways profitable jobs turn unprofitable. It's also one of the five issues we flag in estimating mistakes that cost contractors money.
Price Every Change Order Like a Mini-Quote
A change order isn't a favor — it's work, and it should be priced like any other work: labor + materials + your normal markup, every time, even for "quick" additions.
Treating change orders casually on pricing is how they become unprofitable even when they do get billed. The customer asked for more; give them a real price for more. Consistency here also keeps you honest — the same markup applies whether it's the original quote or the third add-on.
Get It Signed Before the Work Starts, Not After
Timing is everything. Getting sign-off after the work is already done removes your leverage entirely. The customer has little reason to dispute a price before work begins — but plenty of reason to question it once the work is finished and they're looking at the bill.
A simple rule fixes this: no signature, no work. It feels firm, but it protects both sides — the customer knows exactly what they're agreeing to, and you know you'll be paid for what you do.
Keep Change Orders Separate from the Original Quote, Not Buried Inside It
When scope changes, resist the urge to quietly edit the original quote. Instead, nest each change order as its own line item tied to the original job. That keeps a clear record of what was originally agreed versus what was added later.
That separation matters if there's ever a dispute, and it makes your profit tracking far cleaner — you can see exactly how much of the final total came from scope that grew after the handshake. This is especially valuable for general contractors managing multi-week projects where change orders stack up.
Frequently asked questions
What is a change order?
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A change order is a documented, priced agreement for work that falls outside the original quote — an addition, a substitution, or extra scope discovered mid-job. It records what changed, what it costs, and that the customer approved it before the work happened.
Do I need a signed change order for small additions?
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Yes — especially for small ones. Small 'while you're here' additions are exactly the ones contractors skip, and they're the ones that quietly add up to real unbilled work over a job or a year. A quick signed change order takes a minute and protects the margin you'd otherwise give away.
What if a customer refuses to sign a change order?
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Then you don't do the extra work — that's the whole point of getting sign-off before you start. A customer who won't approve a price in writing before work begins is far more likely to dispute it after. Hold the line: no signature, no work, no exceptions.
How do I price a change order fairly?
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Price it like a mini-quote: labor + materials + your normal markup, the same way you'd price any work. Don't discount it just because it's small or mid-job. Fair means consistent with how you price everything else — not cheaper because it's convenient for the customer.