Write the Change Order Before the Extra Work Starts

"While you're here, can you take a look at this?"

If you run an electrical, plumbing, HVAC, or remodel crew, you've heard that line on almost every job. It sounds small. It usually is small. That's exactly why it never gets billed.

The fix isn't a better invoice at the end of the job. It's writing the change down before the extra work starts.

Why the end of the job is too late

Once the work is done, the customer's memory and yours start to drift apart. You remember a 40-minute reroute. They remember you "moving one wire." Now you're negotiating against a finished wall.

Before the work, nobody's arguing yet. The customer wants the thing done. You have the leverage of not having started. A price written down at that moment is a lot easier to collect than one you bring up two weeks later.

I ran restaurants for years before I built trailers. The jobs that lost money weren't the hard ones. They were the ones where nobody wrote down what was included.

Start with a scope that says what's out

A change order only works if the original scope is clear. If your proposal says "install new panel," then every add-on is a debate.

Write the scope so a stranger could read it and know where the job stops:

• What's included, by item or area.
• What's not included, in plain words. "Patching and paint by others." "Existing circuits not upgraded."
• What happens if you find something behind the wall. "Concealed conditions billed as a change at $X/hr plus materials."

That last line does a lot of work. It tells the customer, before the job starts, that surprises cost money.

A five-minute change order on site

You don't need software for this. You need the same few facts every time:

1. What the customer asked for, in their words.
2. What you'll do, in yours.
3. The price, or the hourly rate and a not-to-exceed number.
4. What it does to the schedule, if anything.
5. A signature, or a text or email that says "Yes, go ahead."

A photo of a signed note on a clipboard counts. A text thread that says "Approved, $350" counts. What doesn't count is a nod in the driveway.

If the customer won't approve it now, that's useful information too. Finish the job you were hired for and quote the extra separately.

Keep the paper trail in one place

Change requests come in through texts, emails, voicemails, and the homeowner's brother-in-law. Pick one place where every approved change lands: a folder per job, a shared note, anything. When it's time to bill, you're adding up a list instead of scrolling through your phone.

At the end of the job, line up three things side by side: the original scope, every approved change, and what you actually did. The gap between the last two is your unbilled work.

Say it once, say it nicely

Most customers aren't trying to get free work. They just don't know where your job ends. A friendly line at the walkthrough fixes most of it:

"Anything outside this list, I'll write up and price before I touch it, so there are no surprises on the bill."

Say that once, and the "while you're here" requests turn into small, signed, billable change orders.

Find out what your last job gave away

If you're not sure how much extra work you've been doing for free, look at one finished job. That's what ScopeGuard does. You send one job's proposal or contract plus the emails, texts, and change requests. Within 48 hours you get back where the scope drifted, what went unbilled, and change-order language you can reuse on the next job. It's a flat $499, one time, no subscription.

Order a $499 scope audit on one job and see what it shows.