As a California fence contractor, you know the drill: a client asks for a custom cedar picket upgrade midway through a job, you do the work in good faith, and then the invoice sits on their desk for three months while they "review" it.
Starting January 1, 2026, the rules of the game have changed. Senate Bill 440 (SB 440), also known as the Private Works Change Order Fair Payment Act, is now in effect. It brings the heavy-hitting payment protections of public works projects—like school or highway jobs—straight to your private residential and commercial fencing contracts.
Here is what you need to know to protect your cash flow and use this new law to your advantage.
What is SB 440?
Historically, private project owners could drag their feet on change orders and disputed payments because the law didn't have much "teeth." SB 440 changes that by codifying a strict timeline for how owners must respond to your claims and, most importantly, when they must pay you.
Who it applies to:
- New Contracts: Only contracts signed on or after January 1, 2026.
- Most Private Jobs: Commercial builds, industrial sites, and large residential projects.
- The "Small Job" Exception: It does not apply to most small residential home projects (specifically non-mixed-use buildings of four stories or fewer). However, for larger estates or commercial fencing contracts, this is your new best friend.
The New Payment Timeline: 30-60-2%
The law creates a "ticking clock" that begins the moment you submit a written claim for extra work (a change order) or a time extension.
1. The 30-Day Response
Once you submit a claim via certified or registered mail, the owner has 30 days to conduct a "reasonable review." They must respond in writing, clearly stating:
- What part of the claim they agree to (undisputed).
- What part they disagree with (disputed).
2. The 60-Day Payday
If the owner agrees that you are owed $5,000 for that extra 50 feet of wrought iron, they must pay that "undisputed" amount within 60 days of their written response. They cannot hold that money hostage just because you are still arguing over a different part of the bill.
3. The 2% Penalty "Hammer"
This is the part that gets an owner’s attention. If they miss that 60-day window, the unpaid amount starts accruing interest at 2% per month (24% per year).
Pro-Tip: This interest rate is significantly higher than most bank loans. It is designed to make it cheaper for an owner to pay you than to keep your money.
Your Right to Stop Work
Under SB 440, you are no longer forced to keep digging post-holes if you aren't getting paid. If an owner fails to pay an undisputed amount or refuses to participate in the required "meet and confer" process, you have the legal right to suspend performance.
- Notice Requirement: You must provide a 10-day written notice of your intent to stop work.
- No Liability: If you follow the process, you cannot be held liable for project delays caused by your work stoppage.
How to Prepare Your Fencing Business
To take advantage of SB 440, you have to play by the rules. The law requires specific "certified mail" notifications to trigger these protections.
Update Your Contracts
Ensure your 2026 contract templates reference Civil Code § 8850.
Use Certified Mail
The 30-day clock only starts if you send your claims via registered or certified mail. An email or a text isn't enough to trigger the 2% penalty.
Document Everything
The law requires "reasonable documentation" to support your claim. Take photos of the site conditions and keep signed field tags.
Train Your Foremen
Make sure your team knows that any "extra" work needs a formal paper trail immediately.