Every contractor will eventually face a disagreement with a client, a subcontractor, or a property owner. It is not a question of if, but when. How you respond to that disagreement can determine whether you keep your license in good standing, protect your income, and preserve your professional reputation. Understanding mediation before you ever need it is one of the most practical things you can do in the early stages of your contracting career.
Why Disputes Happen in the First Place
New contractors often assume that a well-written contract and quality work will prevent disagreements. That assumption is understandable, but experience tells a different story. Disputes typically arise over change orders, payment timing, scope of work interpretation, or project delays. In California, these conflicts are governed by a growing set of legal procedures designed to protect both contractors and property owners.
Starting January 1, 2026, California’s Private Works Change Order Fair Payment Act (Senate Bill 440) introduced mandatory dispute resolution procedures for private construction contracts. This law applies to contracts entered into on or after that date and establishes a structured sequence of steps, including formal claims, informal conferences, and mediation, before a dispute can proceed to litigation or arbitration. If you are working on private projects, understanding this framework is no longer optional. It is part of how California construction now operates.
What Mediation Actually Is
Mediation is a non-binding, structured conversation between 2 parties, guided by a neutral third party called a mediator. Unlike arbitration or a court judgment, mediation does not result in a forced decision. The mediator does not rule in favor of either side. Instead, the mediator helps both parties identify the core issues, consider each other’s positions, and work toward a voluntary agreement.
This distinction matters because many new contractors confuse mediation with arbitration. Arbitration in California, including the CSLB-sponsored programs, produces a binding decision that the courts can enforce. Mediation produces an agreement only if both sides voluntarily reach one. That flexibility is both its strength and its limitation.
How the Mediation Process Works in California
Under the current California framework for private construction disputes, mediation follows a specific sequence. First, a contractor submits a formal claim with supporting documentation. The property owner then has 30 days to respond in writing, identifying which portions of the claim are approved and which are disputed. If a dispute remains, the parties may hold an informal meet-and-confer conference before proceeding to mediation.
If that conference does not resolve the issue, both parties must agree on a mediator within 10 business days after the owner issues a written notice of the remaining disputed amount. If the parties cannot agree on a mediator, the contractor holds the right to select one. Mediation costs are shared equally between the owner and the contractor. If mediation fails, the dispute moves forward through whatever resolution process the contract specifies, or through litigation if none exists.
When a complaint is filed directly with the Contractors State License Board (CSLB), the process looks somewhat different. CSLB may attempt its own mediation as part of its complaint review process. If CSLB-sponsored mediation does not succeed, the board may refer the case to its arbitration programs. The mandatory arbitration program covers disputes involving alleged damages of $25,000 or less, while the voluntary program covers disputes between $25,000 and $50,000.
What This Means for Your Business Practices
Knowing that mediation exists is useful. Knowing how to protect yourself before a dispute ever escalates is far more valuable. A few practical habits make a meaningful difference. Keep detailed written records of every change order, payment request, and client communication. When a disagreement starts to form, respond promptly and in writing. Early, documented communication often resolves tension before it becomes a formal claim.
It is also worth reviewing your contracts carefully before signing anything. Under the new Fair Payment Act, contractors who suspend work due to an owner’s failure to follow the required dispute procedures are protected from penalty, provided they issue a proper 10-day written notice of intent to stop work. That protection only applies if the process was followed correctly from the beginning.
The Bigger Picture
Mediation is not an admission of failure. It is a professional tool, one that experienced California contractors use to resolve disagreements efficiently without the cost and delay of litigation. The best contractors treat dispute resolution as part of their business competency, not as an afterthought. Learning how these processes work now, before your license is active and your first major project is underway, puts you in a significantly stronger position when the inevitable disagreements arise.