Guides
Fence Contractor Change Order Pricing: Steps and Markup
Fence contractor change order pricing: how to price direct labor, materials, equipment, and the markup, plus the signed paperwork that makes extras billable.
What to take away
- Price a fence change order from written scope, unit costs, and a markup that covers overhead and profit.
- Get a signed change order before starting extra work; verbal approval is weak once the customer disputes the bill.
- A field check or photo proves each added task was done and keeps the invoice defensible.
- Stop and send structural changes to an engineer when the existing fence or footing no longer matches the drawings.
What has to be true before the first step
Fence contractor change order pricing starts with a written contract that states how changes are priced. Add a change order clause that lists labor, material, and equipment rates. A change order is a written amendment that adds or removes scope. If the contract is silent, you fall back on general contract law, which still requires offer, acceptance, and consideration for the extra work. Align the change order with the deposit terms so the customer knows how the extra payment applies. How Much Deposit explains what to collect up front. Before pricing, identify the exact added work. Walk the line and mark the posts, panels, gates, or grade changes. Take photos and note the date on the form. The form should capture the existing contract number, new scope, and signature line. Put the rule in the contract and on the form: no extra work until the change order is signed. Commercial jobs often use a standard change order form such as AIA G701, while a one-page form with the contract number, the added scope, the price, and a signature line does the same job on residential work.
The sequence
- Pull the original contract and mark the change against the base scope. Note every difference: more linear feet, different post depth, gate hardware, concrete removal, or slope work.
- Price direct labor by crew size and hours. Use the original quote's labor rate if still valid.
- Price material and freight. Include tax, waste factor, and handling time for removed materials.
- Add equipment time if a skid steer, concrete mixer, or post driver is needed beyond the original job.
- Add overhead and profit. A common range is 10 to 15 percent for ordinary changes and 20 to 25 percent for small rush work. This markup covers supervision, insurance, and margin.
A signed change order is the only proof that the customer agreed to the extra cost. Do the paperwork before the crew touches the extra work.
The step that decides the result
The pricing step decides the result. Pull the most recent supplier quote for post concrete, panels, and gate hardware. Apply the same waste factor from the base estimate. Markup is not gouging. A 10 percent markup on a large change differs from 10 percent on a small change because the small change still requires the same paperwork and site trip. State the markup as a percentage and show the line total. The markup may shift by job type; Commercial vs Residential Fence Contracting shows where override margin and payment terms differ.
How to check each step came out right
After the work is done, walk the changed section with the customer and compare it to the signed change order line by line. Measure the added fence length and check post depth with a probe if concrete was added. Take a photo with the customer's house number in the frame. A visible check such as post plumb or panel gap under 2 inches is stronger than a vague looks good. Mark each line complete and sign it.
What to do when a step goes wrong
The common failure is starting extra work before the customer signs, then finding they will not pay. Recover by stopping work on that change item, not the whole job. Send written notice that the change is paused until the order is signed. If the customer later claims the extra work was in the original contract, point to the line-item list and photos. A refusal to pay after a signed order is a breach of contract, and the written record is the remedy. If the customer cannot pay, offer a payment plan or point to customer financing rather than holding the work hostage. A signed change order also supports a mechanics lien if the customer still refuses to pay after the work is complete; lien rights, deadlines, and notice forms come from your state's mechanics lien statute, and the claim is recorded with the county recorder or clerk where the property sits, so check the filing window before it closes. Keep the signed change order and dated photos in one file for at least the warranty period. Do not remove the old fence until the new change is signed, or you may lose the evidence of the original line.
When to stop and hand it to a professional
Stop pricing the change yourself when the added work changes the structural path, such as a retaining wall, a gate wider than 6 feet, or posts set in unverified fill. If the original drawings are inaccurate or the soil collapses around a post hole, call a licensed professional engineer or a geotechnical consultant; engineer licensure runs through your state engineering board. The condition is not the price; it is the shift from fence alteration to structural modification. If the customer files a complaint over the change, use the straight talk in fence contractor complaint handling before you argue about the price.
