Change orders are the single largest source of construction disputes in the United States. What starts as a straightforward renovation or build project almost always involves scope changes — sometimes initiated by the owner, sometimes by the contractor. Without clear contractual language governing how changes are proposed, priced, approved, and documented, a $50,000 kitchen renovation can become a $90,000 nightmare with both sides blaming the other. The problem isn't that changes happen — they're inevitable in construction. The problem is that most residential and small commercial contracts handle change orders with vague, one-sided language that favours whichever party has more leverage at the time.
What is a Change Order Disputes?
A construction contract governs the relationship between an owner (or general contractor) and a contractor (or subcontractor) for building or renovation work. A change order is a written modification to the original contract that alters the scope of work, contract price, or project timeline. Change orders can be initiated by either party and typically require mutual written agreement. In residential construction, contracts often reference the AIA (American Institute of Architects) standard forms or are custom-drafted by the contractor.
Red flags to watch for
If the contract allows verbal change orders or doesn't require written approval before additional work starts, you lose the ability to dispute charges for work you didn't explicitly authorise.
Without a specified markup rate for change orders (typically 10–20% for overhead and profit), the contractor can inflate change order pricing well above the original contract rates.
If you can't get a competing quote for the additional work, you're captive to whatever the contractor proposes. A right to independent estimates gives you negotiating power.
If the contract doesn't allow schedule extensions when scope increases, the contractor may rush the additional work to meet the original deadline — or charge overtime to do so.
If the contractor can demand full payment for disputed change orders while the dispute is pending, you lose financial leverage to negotiate a fair resolution.
Construction allowances (e.g., '$5,000 for lighting fixtures') that don't specify the quality or scope expected mean the contractor can choose the cheapest option and any upgrade becomes an expensive change order.
Your legal rights
Construction contract law in the US is governed by state law, and requirements vary significantly. Many states have specific statutes governing residential construction contracts — for example, California's Contractors State License Law (Business and Professions Code §7159) requires that home improvement contracts include specific provisions about change orders and limits the total of change orders to 10% of the original contract price without additional written consent. Texas Property Code §53 governs construction payment and lien rights. Most states require contractors to be licensed and may void contracts with unlicensed contractors. Mechanic's lien laws (which vary by state) give contractors the right to place a lien on your property for unpaid work, making it critical to resolve change order disputes promptly.
Questions to ask before you sign
- 1Does the contract require written, signed change orders before any additional work begins?
- 2What is the markup rate for change orders — overhead, profit, and materials?
- 3Can I obtain independent pricing for proposed change orders before approving them?
- 4How are change orders handled that affect the project timeline — is the schedule automatically extended?
- 5What happens if we disagree on whether work constitutes a change order versus original scope?
- 6Are allowance items clearly defined with specifications, and what happens if I choose something above the allowance?
Disclaimer: This guide is for educational purposes only and does not constitute legal advice. Contract law varies by jurisdiction and individual circumstances. Always consult a qualified legal professional before making decisions based on this information.