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Change Order Agreement for Specialty Trade Contractors

Specialty Trade Contractors · NAICS 238 · Change Order Agreement

A change order is a formal amendment to an existing construction contract. For specialty trade contractors—electrical, plumbing, HVAC, sheet metal, fire protection—changes are inevitable: owner requests, design revisions, or unforeseen conditions. Without a signed change order, you risk unpaid work, schedule delays, and disputes over scope. This tool generates a clear, trade-specific change order agreement that documents the change, price adjustment, schedule impact, and preserves your lien rights. It helps you maintain professional control and avoid scope creep on every job.

When you need this document

When an owner or general contractor requests additional work beyond the original scope
When a design change from an architect or engineer affects your rough-in or system layout
When an unforeseen site condition (e.g., hidden plumbing, existing structure) requires extra labor or materials
When a code or permit requirement changes mid-project, impacting your installation
When you need to deduct unused allowances or credit for deleted work

What the generated draft includes

Identification of parties and original contract reference
Trade-specific description of changed work
Price adjustment and new contract total
Schedule impact and revised completion date
Payment terms for the change order work
Reservation of lien rights and notice provisions
Signature blocks for mutual acceptance

Frequently asked questions

Why can't I just do the extra work without a change order?

Without a signed change order, you have no contractual entitlement to additional payment or time. You also risk waiving lien rights for that work. A signed change order protects your right to get paid and keeps the project schedule clear.

What if the owner says 'we'll handle it later'?

Politely but firmly explain that you need a signed change order before proceeding to document the scope and cost. This prevents disputes and ensures you are compensated for the extra labor and materials.

Does a change order need to be notarized?

No, notarization is not required for a change order to be enforceable. Both parties' signatures (or authorized representatives) are sufficient. Electronic signatures are generally valid under state law.

Self-help document generator: you get a structured draft based on the facts you provide. It is not legal, tax, or financial advice; verify jurisdiction-specific rules before sending.

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