Back to all guidesProject Management

How to write a change order for a home improvement project

Scope changes mid-project are fine. Doing the extra work before the client signs isn't. Here's how to write a change order that protects you and moves fast.

6 min read·Updated July 27, 2026

The homeowner is standing next to you in the kitchen. You're there to replace the countertop. She points at the backsplash tile and says, 'While you're here, can you just replace a few of those too?' You say sure, no problem. Two days later you hand her the invoice. She's surprised by the extra $600. 'I didn't think it would be that much,' she says. 'We didn't discuss a price.' Now you're in a conversation nobody wins. She thinks she's being overcharged. You think you're being stiffed for work you did. You're both right, because nothing was agreed in writing.

Verbal agreements on extra work are where margins disappear. Not because clients are dishonest, but because people hear what they wanted to hear. The client heard 'sure, no problem' and didn't think about cost. You thought the price was clear given what materials and labor run. Three weeks later when the invoice arrives, you have two different memories of the same conversation and no document to settle it. A scope dispute with no paper behind it is a coin flip. Sometimes you win. Sometimes you eat the cost.

A change order breaks that cycle. It documents the extra work in writing, puts a price on it, and gets the client's signature before a nail gets pulled. The client knows what they're approving. You know you're covered. Here's how to write one.

Step by step

  1. 1

    Recognize scope creep the moment it starts

    When a client says 'while you're here, can you also...' that's where a change order becomes necessary. The original estimate didn't include that work. Before you say yes to anything outside the original scope, pause and size the ask. A cracked outlet cover is a 10-minute favor. A bathroom floor isn't. The rule: if it wasn't on the original estimate, it doesn't get done without written approval. You can still say yes to the extra work. Just say it with paper. Something like: 'Sure, I can do that. Let me put together a change order so we're both on the same page before I start.'

  2. 2

    Price the extra work before you write a number

    Don't quote off the top of your head. Walk the scope before you put a number on it. Check material quantities, pull prices from your supplier list, and price the labor at your standard rate. Then add your markup. If there's any uncertainty (what's behind the drywall, whether the subfloor is solid), build in a buffer. A change order that goes over its price after the client signs causes more friction than the scope creep it was meant to fix. If you can't see the full scope yet, write a time-and-materials change order for the discovery work and a fixed-price one after you know what you're dealing with.

  3. 3

    Write the change order with the right fields

    Keep it short and specific. The client shouldn't need to read it twice to know what they're approving. You need: a plain-language description of the extra work, line items with quantities and unit prices, the revised project total, and payment terms for the added amount. Include the date and reference the original estimate number. Label it 'Change Order' at the top, not 'Revised Estimate.' A revised estimate implies the original agreement is changing. A change order says it's an addition. That distinction matters if a dispute comes up, because both documents stay on record and you want the original approval intact.

  4. 4

    Set an expiration date

    A change order without a deadline is an open invitation to drag things out. Set an expiration of 3 to 5 business days from the date you send it. That gives the client time to review without giving them a week to get a second opinion on work you're already standing next to. An expiration also creates a natural check-in point: 'Did you get a chance to look at the change order I sent?' is an easier call to make when you've already told them it expires Friday. If they let it expire, write a fresh one. Material prices shift. Your schedule does too.

  5. 5

    Send it through the client portal and wait for the signature

    Send the change order before you start the extra work. The sequence matters: agree on scope and price first, get approval, then do the work. Not the other way around. In Homefront Pro, the change order goes to the client's portal and sits alongside their original estimate. They tap the link, review the scope and price, and sign. [screenshot: change-order-portal-view.png] The signed status updates on your end right away. Once it's approved, you have a locked record with an audit trail: the timestamp, the IP address, and the exact document they approved. That record turns a scope dispute into a short conversation instead of a long one.

  6. 6

    Hold the line: no signature, no work

    Some clients push back. They say the price is too high. They say they thought it was included. They say they'll sign it after you finish. None of those are reasons to start without a signature. Pull up the original estimate when a client says it was included: the scope is in writing. Walk them through the line items when they say the price is too high. When they say they'll sign later, tell them you'll start the moment they do. A client who's serious about the extra work will sign. One who isn't was never going to pay for it anyway. [screenshot: change-order-pushback.png]

  7. 7

    Tie the change order to the final invoice

    When the project is done, the final invoice should reflect everything that was approved: the original estimate and each signed change order. In Homefront Pro, change orders appear in the project history and pull into the invoice total automatically. Your client sees the full breakdown: original scope, change order 1, change order 2, and the balance due. No surprises when the bill arrives. The complete paper trail (original estimate, signed change orders, final invoice) is also what you need if a payment dispute comes up months after the project closes.

Common questions

Related

  • E-signatures (ESIGN/UETA compliant)
  • Client portal
  • Online payments
  • Built for general contractors
  • Built for remodelers
HOMEFRONTPRO
FeaturesPricingFAQ
LoginGet Started
HOMEFRONTPRO

Helping pros and clients work together with clarity, trust, and professionalism.

Get the App

Coming soon

Download on the

App Store

Get it on

Google Play

Product
FeaturesPricingHow It WorksFAQGuides
By Trade
For RoofersFor LandscapersFor PaintersFor Fence BuildersFor Concrete ProsFor General Contractors
HOMEFRONTPRO

Helping pros and clients work together with clarity, trust, and professionalism.

Get the App

Coming soon

Download on the

App Store

Get it on

Google Play

© 2026 HOMEFRONT PRO. ALL RIGHTS RESERVED.

CONTACTBETTER WORK STARTS HERE

Your work speaks for itself. Your portal should too.

Set up your client portal in 2 minutes. Send estimates, collect signatures, and get paid, all in one place.

Free for 14 days, no card required. Cancel anytime.

For Remodelers
For Deck Builders
For Carpenters
For HVAC Pros
For Plumbers
For Electricians
For Handymen
Compare
vs Jobbervs Joistvs Housecall Provs ServiceTitan
Company
LoginSign UpAboutContact UsPrivacy PolicyTerms of Service

Product

FeaturesPricingHow It WorksFAQGuides

By Trade

For RoofersFor LandscapersFor PaintersFor Fence BuildersFor Concrete ProsFor General ContractorsFor RemodelersFor Deck BuildersFor CarpentersFor HVAC ProsFor PlumbersFor ElectriciansFor Handymen

Compare

vs Jobbervs Joistvs Housecall Provs ServiceTitan

Company

LoginSign UpAboutContact UsPrivacy PolicyTerms of Service
Start free trial