Why your material price increase change order gets denied

You bid the job in March. You start it in June. Somewhere in between, the supplier repriced the package and nobody told you until the material hit the yard. Now you are staring at a number that is four figures higher than what you carried, and you have two options: write a material price increase change order, or quietly eat it.

Most contractors eat it. Not because they want to, but because by the time they notice, the moment to ask has passed. The material is already installed. The client has already mentally closed the book on the price. And a change order that shows up after the fact looks less like a legitimate cost and more like a contractor trying to claw back a bad bid.

That is the real problem with price escalation. It is rarely the increase itself that costs you. It is the way the increase gets handled.

What eating a material price increase actually costs you

Run the math on a job that was priced at a 15% margin. If a material overrun eats $2,000 of that margin, you do not just lose $2,000 — you lose the profit from roughly $13,000 worth of work you already did correctly. On a small residential remodel, that can be most of the job's profit gone on a single line item you never billed for.

Then it compounds:

• Cash flow. You paid the supplier at the new price. You billed the client at the old one. The gap comes out of your operating account, and it does not come back.
• Precedent. Absorb it once without saying anything and you have taught the client that material costs are your problem. The next increase is even harder to raise.
• The final-invoice fight. Contractors who eat increases quietly often try to recover them at the end, buried in a final bill. That is where relationships break. A client who would have signed a $1,900 change order in June will fight a $1,900 surprise in September.
• Your own numbers go blind. If the overrun never becomes a documented change order, your job costing shows a bad estimator instead of a moved market. You bid the next job off garbage data.

None of that is dramatic. It is just slow, quiet margin loss — the kind that shows up at the end of the year when the revenue looks fine and the bank balance does not.

5 reasons a material price increase change order gets denied

1. It arrives after the material is installed

This is the big one. A client can say no to a cost they have not committed to yet. Once the cabinets are hung, saying no feels like being billed for something they never got to decide on — so they push back on principle. Timing is most of the battle. The change order needs to land when the client still has a real choice: pay the new price, pick a different product, or cut scope somewhere else.

2. It has no proof attached

"Lumber went up" is not a change order. It is a complaint. A number with no supporting document reads as an estimate the contractor pulled out of the air. Attach the supplier quote, the reprice notice, or the invoice showing the old and new unit price. When the client can see that the increase came from outside your business, the conversation stops being about whether you are being fair.

3. It bundles the increase with other changes

A change order that reads "misc. material adjustments and additional framing — $3,240" gives the client one big number and four reasons to argue. Split it. One change order for the price increase, with its own math. One for the added framing. A client who can approve half of something usually does, and you get paid for the half that is not in dispute.

4. The contract never contemplated it

Plenty of fixed-price contracts have no language covering material escalation at all. Some contracts include a price escalation or allowance clause; many do not. If yours is silent, you are asking for a favor rather than exercising a right — and you should expect a harder conversation. Worth reviewing with your attorney before your next contract goes out, because this is general information and not legal advice.

5. There is no signature — just an email thread

"He said go ahead" is worth roughly nothing when the final invoice is disputed. If the approval lives in a text message, a phone call, or the middle of a long email chain, you are relying on the client's memory and goodwill six months later. That is a bet you will eventually lose. Every increase needs its own document, its own number, and a signature on it before the material goes in.

How to write a material price increase change order that gets signed

Nothing here is complicated. It is just a sequence, and the order matters more than the wording.

1. Catch it early. Get written price confirmation from your supplier before you order, not after delivery. If a quote has an expiry date, put that date in your calendar — that is your warning light.
2. Isolate the item. Name the exact material, the quantity, the original unit price you carried, and the new unit price. One line, both numbers, side by side.
3. Show the delta, not just the total. "Old: $4.10/lf. New: $5.35/lf. 620 lf. Difference: $775." That is the whole argument in four numbers.
4. Attach the evidence. Supplier quote or reprice notice. A screenshot is fine. Proof of source is what turns a request into a fact.
5. Add your markup and tax openly. If your contract allows markup on change orders, apply it and show it as its own line. Hidden markup is what gets a change order audited line by line. For more on this, see how to price a change order.
6. Give options where you honestly can. "Approve the increase, or we substitute product X at the original price." A client with two choices approves far more often than a client with one demand.
7. Get it signed before you order. Not after. The signature is the entire point of the document.
8. Update the contract total on the face of it. Original contract value, this change order, revised contract value. Everyone knows where the job stands and there is no reconciliation argument at the end.

Two free ways to handle it — pick whichever suits you

There are two decent ways to get this done, and both of them are free. Which one is right depends on how you already work.

If you work in spreadsheets: grab the free Excel change order template. It has the line items, quantity and unit price fields, markup, tax, and revised contract value already worked out with formulas, so a price escalation calculation takes about a minute. There is also a log sheet so every change order on the job sits in one place — which is exactly what you want when the final invoice gets questioned. You download the free change order spreadsheet, save a copy per job, and it is yours. No account, nothing to install, and it prints clean enough to hand to a client or attach to an email.

If you would rather do it from the truck: use the free change order tool instead. Same information, but you fill it in on your phone at the supplier's counter, hit send, and the client signs it on their screen — usually before you have left the parking lot. The revised contract value updates itself, so you always know the real number, and every signed change order is timestamped and stored, which is the part that ends disputes. It costs nothing to create a free change order; there is no trial and no card. If you are wondering where the catch is, we explain why it is 100% free in plain terms.

Spreadsheet or phone, the mechanics that matter are identical: isolate the item, show both prices, attach the proof, get the signature before the material lands. Use whichever one you will actually stick to on a busy Tuesday.

A worked example

Say you carried 42 sheets of a specific plywood at $58 each — $2,436. The supplier reprices to $71 before you order. Your change order says:

• Item: 3/4" plywood sheathing, 42 sheets
• Original unit price carried: $58.00 | Revised unit price: $71.00
• Difference: $13.00 per sheet x 42 = $546.00
• Markup at contract rate (10%): $54.60
• Change order total: $600.60
• Attached: supplier reprice notice dated this week
• Original contract $84,000 + $600.60 = revised contract value $84,600.60
• Alternative offered: substitute equivalent sheathing at $60/sheet, no increase

That takes five minutes to produce and it is nearly impossible to argue with. Compare it to the version most contractors send — a text saying "hey, ply went up, it will be about six hundred extra" — and you can see why one gets signed and the other gets a shrug.

The habit that actually protects your margin

The contractors who never lose money on escalation are not better negotiators. They just have one rule: no material gets ordered at a price the client has not seen. That is it. Everything above is just the paperwork that makes the rule enforceable.

Build the habit on the next job. Write the change order the day the price moves, not the day the invoice arrives. And keep every one of them in a single place, so when someone asks in September what the contract total is, you have an answer instead of an argument. If you want more on the surrounding process, the rest of our change order guides cover the parts that come before and after this one.

Frequently asked questions

Can I charge the client for a material price increase on a fixed-price contract?

It depends entirely on what your contract says. Some contracts contain a price escalation or allowance clause that covers it; many fixed-price contracts do not, in which case you are asking the client to agree to an increase rather than enforcing a right. Either way, put it in a written change order with the supplier documentation attached, and get it signed before the material is ordered. This is general information, not legal advice — check your specific contract with an attorney.

Do I put markup on a material price increase change order?

If your contract allows markup on change orders, then yes — the increase carries the same overhead and handling cost as any other material. Show it as its own line rather than burying it in the unit price. Transparent markup gets questioned far less often than a total that cannot be broken down.

Is there a free template for a material price increase change order?

Yes. The free Excel change order template has quantity, unit price, markup, tax and revised contract value fields already set up with formulas, so you enter the old and new unit prices and it does the math. It also includes a log sheet to track every change order on the job. It is free to download and use on any project.

How fast do I need to send it?

Before you order the material, if you possibly can. A price increase change order that arrives before the purchase gives the client a real choice, which is why it gets approved. One that arrives after installation reads as a surprise bill, and that is where disputes start.

Daisy Porter

Co-Founder, ChangeOrdersPro

Daisy writes about the unglamorous side of running a build — the paperwork, the change orders, and the conversations that keep a job profitable. ChangeOrdersPro is the free tool her team built so contractors can send a professional change order and get it signed from a phone in about 30 seconds.