Change Order Pricing Strategy: Why Verbal COs Kill Margin

Change orders are where profit leaks

Ask ten contractors when they lose money on a job and most will say “the change orders we didn't write up.” Every job has scope changes. The unprofitable ones handle them verbally, fold them into the final invoice, and discover at payout time that their change-order revenue never covered the extra labor and materials.

A proper change-order process isn't bureaucracy. It's the difference between a 38% gross margin job and a 22% one.

What counts as a change order

A change order is any scope change that adds, removes, or modifies work relative to the original signed contract. Common examples:

• Homeowner asks for an additional fixture, outlet, zone, or feature
• Homeowner changes the spec (different tile, upgraded faucet, different paint sheen)
• Discovery work: rotten framing, galvanized pipe, knob-and-tube wiring uncovered during demo
• Code-upgrade requirements triggered by the permit inspection
• Site condition changes (access restrictions, weather delays with schedule impact)
• Scope reduction requests (customer removes work from the original contract)

Everything in this list needs a written change order. Even scope reductions — you want to document the credit back and the updated contract total.

A good change order template

Your change order form needs six fields:

1. Change order number (CO-01, CO-02 sequential)
2. Description of work — specific and scoped, not “add outlets” but “install three additional 20A outlets in kitchen north wall per customer markup on plans dated 4/12”
3. Price — broken into labor, materials, and total
4. Schedule impact — +0 days, +1 day, +5 days
5. Updated contract total — original + all prior COs + this CO
6. Signature line — homeowner signs before work begins

No signature, no work. Full stop. If your customer hesitates on a CO, the worst thing you can do is start the work and hope the signature happens later — because it usually doesn't.

Pricing change orders: use a premium

Change orders should be priced higher per hour and per unit than the original bid, not the same. Reasons:

• Mobilization is already amortized over the original bid. Adding 4 hours mid-project doesn't re-spread mobilization; it pure-labor the new work.
• Schedule disruption — the crew has to stop what they were doing, switch gears, and resume
• Order friction — small material orders have higher delivery and handling overhead per dollar than the original bulk order
• Customer leverage is lower — they already chose you; they're not shopping the change-order price
• Risk premium — discovery work (rotten framing) has unknown scope until opened

Typical change-order pricing approaches:

• Labor rate: 15–30% premium over original bid labor rate
• Materials markup: same multiplier as original, but billed at actual cost without bulk-discount credit
• Minimum change-order charge: $250–$450 minimum even for trivial additions
• Discovery work: T&M billed with a not-to-exceed ceiling approved in advance

Handling discovery work

Discovery work is the hardest category. The tech opens a wall and finds crumbling galvanized pipe, or pulls up carpet and finds water damage, or starts demo and finds asbestos-tape drywall joints. Scope is unknown until work is partially underway.

Handle with a stop-work + scope-confirmation process:

1. Tech stops work at the discovery
2. Take photos, document what's there
3. Call the homeowner with three pieces of info: what we found, what it means for scope, and the not-to-exceed ceiling
4. Get verbal approval + text/email confirmation immediately
5. Written CO within 24 hours
6. Complete work
7. Submit final T&M documentation with the CO for payment

Never, ever proceed on discovery work without the ceiling confirmed. “Let me just fix it” is how a $400 repair becomes a $6,000 surprise the customer disputes.

Contract language that enables change orders

Your master contract should include change-order language that makes the process unambiguous. Minimum elements:

• “All changes to the scope of work must be documented on a signed change order before work on the change begins.”
• Change-order rate schedule (labor rate per hour, materials markup, minimum CO fee) — baked in so you don't negotiate mid-project
• Discovery work policy — you stop work, notify homeowner, get written approval before proceeding
• Payment terms on change orders — typically due with the next scheduled progress payment
• No verbal change orders clause — explicit language that verbal requests aren't binding on either party

Communicating change orders without friction

The biggest objection to change orders isn't the cost, it's feeling nickel-and-dimed. Neutralize this with three habits:

• Set the expectation in the initial walkthrough. “During construction, if you want to change something or we discover something behind a wall, we write a change order. That's how we keep pricing honest — nothing silent, nothing hidden.”
• Frame CO as options, not demands. “If you want the outlets added, here's the change order. If you don't, we skip it.” Customer has control.
• Be proactive. Present the CO same day the scope-change conversation happens. A week-later change order feels like an invoice-stuffing trick.

Change order mistakes

1. Verbal change orders. If it's not signed, it didn't happen. Every time.
2. Billing at bid-labor rates on change orders. Small adds without mobilization absorbed are labor-inefficient; price them accordingly.
3. Not sequencing CO numbers. CO-01, CO-02 helps everyone track what's in and out of scope.
4. Deferring change orders until final invoice. By then the customer has forgotten the scope-change conversation and feels ambushed.
5. Proceeding on discovery without a ceiling. Tech opens a wall, keeps working, discovers it's a 4-hour fix not a 30-minute one. Customer sees the bill and disputes.