Change orders that do not start fights

Day three of a kitchen. The customer comes in while the wall is open and asks if you can move the outlet by the sink over a foot. You say sure, that's twenty minutes. Then the sheathing behind the sink base turns out to be soft, and that is not twenty minutes, and nobody has said a number out loud yet.

Both of those are change orders. One is the customer's idea and one is the house's, and the mistake is treating either as a favor you sort out at the end.

Three things trigger a change order, and only one is the customer's idea

The customer adds or upgrades scope. One more outlet, a different tile, paint the hallway while you're here. Usually cheerful, usually genuinely small in their head.

A concealed condition shows up. Rotted subfloor, a drain line nowhere near where the plans put it, knob-and-tube behind the plaster. You could not have priced this from the walkthrough, which is why your original estimate should say so in writing before you open a wall.

Something outside your control costs you days. The cabinet supplier slips two weeks, the owner has not picked a color, the site is not clear, an inspection reschedules. This is the trigger most contractors never write up, and the one that quietly eats a job. A crew standing around is paid the same as a crew working.

One condition is the exception to all of this. If you find a possible hazardous material, stop and price the handling separately instead of absorbing it into the change order. For pre-1978 housing and child-occupied facilities, EPA's RRP rule can require certified firms and trained workers when paint is disturbed. Asbestos and mold rules also vary by state. Put the finding, the stop, and who will handle it in writing before anyone keeps cutting.

What the change order itself has to say

Five things. Miss one and you have a note, not an agreement.

• What the change is, in the same plain terms as your estimate. "Replace water-damaged subfloor sheathing under sink base" beats "repair floor."
• The price, or the method that will produce the price. Both are acceptable. Silence is not.
• What it does to the schedule, in days, including zero. Write "adds 0 days" — otherwise the customer supplies their own number.
• Whether it changes anything else: a payment milestone, an allowance, a warranty exclusion, an inspection.
• Written approval, dated before the work starts. A signature, initials, or a reply you can produce a year later — though which of those actually counts is set by your state's law, not by your habit. See below.

That last one is the whole point. A change order signed after the work is a bill with a signature line on it.

Pricing a change you cannot fully see yet

Extras get done on a handshake because nobody can price them on the spot. You do not need the final number. You need the method, agreed in writing. The dollar figures below are there to show the shape of a line; rates and unit prices swing hard by market and trade, so read them as placeholders, not as benchmarks.

The cap is what makes T&M signable. An open-ended hourly number on an unknown problem is the one thing a homeowner will not agree to in a kitchen full of dust, and reasonably so.

For customer-caused standby, put the rate in the original contract, not in the argument. A reduced day rate — the crew and the truck, not the full margin — is easier to collect and easier to say than a full billable day.

What "yeah, go ahead" actually costs you

Verbal approval is not worthless. It is the version where you carry the burden of proof, three months later, against someone who remembers the conversation differently and has already spent their budget. Three risks, in rough order of how often they bite.

They pay the base contract and dispute the extras. You are negotiating from behind, on a finished job, with nothing to point at. A claim for extra work is a poor collection plan, particularly where residential-contract rules apply.

Your lien rights get thinner. A mechanic's lien generally has to rest on work the owner or their agent authorized, and an unsigned extra is the first line item an owner's attorney challenges. Amounts, deadlines and who counts as authorized all differ by state.

The statute may simply be against you. Residential home-improvement rules can prescribe the form of a change order. California, for example, requires one in writing and signed before the changed work begins, with scope, price, and payment-schedule effect stated. Other states differ. Check your own rule; assume written.

One kitchen, four changes, one running total

Same job as the opening. Your numbers will not be these numbers — a kitchen at $14,800 is a different kitchen in Cleveland than in San Jose. What is ordinary is the pattern: four changes, none of them anyone's fault, all of them money.

Nineteen percent over the original number, five days past the date on the estimate. Delivered as four small conversations, that is a job that went normally. Delivered as one final invoice, it is a bad review, a stopped check, and a complaint to whoever regulates contractors where you work.

Getting it signed without killing the momentum

The habit is small and fast: photo, price, send, wait for the reply, then cut.

Say it while you are standing at the thing. "That's outside what we bid — give me five minutes and I'll send you the number." Then send it before you leave the room. Where the law lets you take written approval by email or text, a reply saying "approved" against a message carrying the description, the price and the day count is a real record. Where your state requires a signed change order on residential work, get the signature. Your state licensing board is the place to check which one you are in. Many publish a plain-language contract guide, and some, California's board included, publish sample contract language you can work from.

What contractors underestimate is that this is what the customer wanted. They are not afraid of paying for the subfloor. They are afraid of a number they cannot see coming. A change order lets them say no to the tile and yes to the sheathing — and people do not fight about choices they made themselves.

If you decide to eat one, a $60 extra for a customer who has hired you four times, write it up anyway and show it at zero. Goodwill you documented is goodwill they noticed.

Sending it before you pack up the truck

The fight comes from the delay, and the delay is almost always administrative: you meant to write it up that evening, then the next job started. In DoneQuote you price the change as its own document off the original job, from the phone while the wall is still open — description, amount, day count, approval request — so the number the customer agreed to in the kitchen is the number that reaches the final invoice, with a dated approval behind it.