Change Order Disputes in California Construction: Who Pays When the Scope Changes

Few things derail a construction project faster than work that was never part of the original contract. An owner asks for an upgrade halfway through the job. A hidden site condition forces a redesign. A revised set of plans adds three weeks of labor that nobody priced. The work gets done because the schedule will not wait, and the argument over who pays for it arrives later. By that point the contractor has already spent the money, and whatever leverage existed at the start of the job has quietly shifted to the other side.

Change orders are one of the most common sources of payment disputes we see in California construction, and they are also one of the most preventable. The law gives contractors real tools to get paid for extra work but the catch is that those tools only do their job when the paperwork is handled correctly before the extra work begins, rather than after the fact. An Irvine, CA construction litigation lawyer can help contractors, subcontractors, and property owners resolve disputes involving change orders, contract performance, and payment issues while protecting their legal and financial interests.

Get The Change In Writing Before The Work Starts

For home improvement contracts, putting a change order in writing is not simply good practice, it is the law. Under Business and Professions Code Sections 7159 and 7159.6, a change order becomes part of the contract only if it is in writing and signed by both parties, before any of the additional work is performed. These sections make it clear that a homeowner cannot force a contractor to perform extra or changed work without written authorization and they exist to protect all parties to the transaction. The homeowner knows exactly what they are agreeing to pay for, and the contractor walks away with a signed record of the promise.

For commercial and larger projects, these requirements are customarily spelled out in the contract itself.  Almost every well drafted commercial construction contract will contain a clause requiring that change orders be written and signed by both parties. Since California courts enforce these clauses with regularity, a contractor who performs work on a verbal basis will find itself in a legally precarious position when it tries to later collect for that work, often looking to prove whether a conversation for such work even happened, along with its scope of work.  Suffice it to say that memories wane over the course of time making such scenarios riddled with confusion and anguish.

When The Work Happened But The Paperwork Did Not

None of this means a contractor is automatically out of luck when extra work is performed without a signed change order. California recognizes several legal theories that allow for recovery for the reasonable value of work an owner has requested and benefited from. Owners can also waive a written change order requirement through their own conduct by repeatedly directing extra work and paying for it. In these instances, the owner cannot suddenly insist on strict paperwork the moment a bill they dislike shows up.

The problem however is that every one of these arguments is only a fallback in that they are harder to prove and take longer to litigate which inevitably costs far more than a signed change order. It is in essence a gamble that the contractor never needed to take in the first place.

Simple Habits That Protect Payment

The contractors who win these disputes tend to do the same handful of things, none of which  are terribly complicated. They stop and paper the change before mobilizing crews on the extra work. They write down the scope, the added cost, and any effect on the schedule in plain language. They get a signature, or at the very least a confirming email, before anyone picks up a tool. They all keep daily records that tie specific labor and materials back to the specific change, so the numbers are not a mystery later.

When a dispute eventually lands in front of a judge or an arbitrator, contemporaneous documentation almost always beats testimony reconstructed from memory a year after the fact. The contractor who can lay down a signed change order, a dated email, and a clean set of field records sits in a far stronger position than the one explaining why none of that exists. A few minutes of paperwork at the right moment routinely saves tens of thousands of dollars and many months of conflict down the road.

Caught in a dispute over extra work or unpaid change orders? Ghassemian Law Group represents contractors, owners, and developers across California. Call us today for a free consultation.