Why approved work still goes unpaid
Almost nobody refuses to pay for work they never asked for. They refuse to pay for work they asked for casually — standing in a half-demoed bathroom, saying "while you're in there, can you just..." — and then remember it as included.
A change order is not bureaucracy. It is the moment the scope, the price, and the schedule change together, in writing, with a signature. Every part of that sentence matters, and skipping any one of them is where the money leaks.
What belongs on the form
A change order that holds up has seven things on it: a sequential number, the date, a plain-language description of the added or deleted work, the price change stated as a dollar amount, the schedule impact stated in days, the new contract total, and signature lines for both parties.
Two of those get skipped most often. The schedule impact is the one owners forget they agreed to, then use against you when the finish date slips. The new contract total is the one that prevents the end-of-job conversation where the owner adds up a number that does not match yours.
Write the description the way a stranger would need to read it. "Add recessed lighting" is a dispute. "Furnish and install six 4-inch recessed LED fixtures in the living room ceiling, including new circuit from the existing panel" is a change order.
Price it honestly, and price it at the time
Extras priced under pressure at the end of a job always look inflated, because the owner is comparing them to nothing. Extras priced the day they come up look like arithmetic.
Where you cannot know the cost yet — opening a wall, chasing a leak — say so on the form. Use a not-to-exceed number, or a time-and-materials rate with a written cap and a commitment to stop and report at the cap. An open-ended T&M change order with no ceiling is the single most disputed document in residential construction.
When to stop work
The rule that saves the most money is the least comfortable one: do not perform the extra until the change order is signed.
That does not mean walking off. It means sequencing around the change — keep the crew on approved scope while the paperwork clears. If the change blocks everything else, say plainly that you are ready to start as soon as it is signed, and send it within the hour.
There is one honest exception: genuine emergencies and safety issues. Address those immediately, then document what you did, why it could not wait, and what it cost, in writing, the same day.
Handling the verbal approval
Sometimes the owner says yes on the phone and you need to keep moving. Do not treat that as nothing, and do not treat it as a signature.
Send a same-day written confirmation: "Confirming our call at 9:40 this morning — you approved adding X for $Y, adding two days to the schedule. Formal change order attached for signature. We are proceeding on your verbal approval."
That email is not as strong as a signature, but it is contemporaneous, specific, and unrebutted if they do not reply. Silence against a clear written record is a very different position than two people remembering a hallway differently.
Build the mechanism into the contract
Your base contract should already say how changes work: that all changes require a written, signed change order; that the contractor is not obligated to perform unsigned changes; that approved changes adjust both the contract price and the completion date; and that payment for a change order follows the same schedule as the rest of the contract.
Add one line most contracts miss: an allowance-overage clause. When a customer selects tile at twice the allowance, that is a change order too, and the contract should already say so.
The pattern to watch for
A customer who negotiates every change order individually is not necessarily a problem. A customer who approves changes verbally, delays signing, disputes the price after the work is done, and then quietly deducts it from the final payment is running a pattern — and it usually shows up on more than one job.
That is exactly the kind of thing worth filing in a report after the job closes: not an insult, just the facts of how the extras went.
The short version
- Include number, date, scope, price, schedule days, new contract total, and both signatures.
- State the schedule impact in days — owners contest that more than the money.
- Price the extra the day it comes up, not at the end of the job.
- Cap every time-and-materials change order with a not-to-exceed number.
- Do not perform unsigned changes; sequence around them instead.
- Emergencies get done first and documented the same day.
- Confirm every verbal approval in writing within the hour.
- Put the change-order mechanism, and an allowance-overage clause, in the base contract.
Common questions
What should be included in a construction change order?
Seven things: a sequential number, the date, a plain-language description of the added or deleted work, the price change as a dollar amount, the schedule impact in days, the new contract total, and signature lines for both parties. The schedule impact and the new contract total are the two most often skipped and the two most often disputed.
Is a verbal change order legally binding?
Sometimes, but it is very hard to prove, and most construction contracts explicitly require changes to be in writing. If you must proceed on a verbal approval, send a same-day email confirming the time of the call, the scope, the price, and the schedule days, with the formal change order attached for signature.
Can a contractor refuse to do work without a signed change order?
Yes, when the contract says unsigned changes are not obligatory — which yours should. Sequence the crew around the change instead of walking off, and say plainly that you will start the moment it is signed. Genuine safety emergencies are the exception: handle them first, then document the same day.
What happens if the customer will not pay for an approved extra?
Your leverage is the paper trail — the signed change order, the written confirmation of a verbal approval, and the invoices. If the amount stays unpaid, the same documentation is what supports a mechanic's lien claim, which is why the change-order file and the lien file are really the same file.
Related in the manual
- How to File a Mechanic's Lien, Step by Step
A mechanic's lien is the strongest collection tool most contractors have, and the easiest one to lose on a technicality. Here is the sequence, in order.
- How Much Deposit Should You Ask For?
Too small and you finance the customer's project. Too large and good customers walk. Here is how to size a deposit to the actual job.
- Scope Creep—and the One Paragraph That Stops It
Scope creep rarely arrives as a major request. It usually begins as a small favor. Here is the one paragraph that protects the price and the schedule.