Insurance

The fence credit written into California insurance regulation: Safer from Wildfires, explained

Fact-checked August 19, 2026·Sources at the end of this article

A discount written into regulation, not marketing

California's "Safer from Wildfires" regulation, 10 CCR §2644.9, took effect October 14, 2022. Since then, any insurer that prices California homeowners policies using wildfire risk has been required to include a separate rating credit for an enumerated list of mitigation measures. The fencing measure, verbatim:

"Incorporation of only noncombustible materials into that portion of any improvements to the property on which the Building Being Evaluated is located, including fences and gates, which is situated within five (5) feet of the Building Being Evaluated."

10 CCR §2644.9(d)(1)(B)1.c

In plain terms: the credit applies when the portion of any fence or gate within five feet of the house is built of only noncombustible materials. In practice that means aluminum, steel, wrought iron, chain link, masonry, concrete or stone. Wood, vinyl and composite do not qualify; our guide to noncombustible fence materials covers what passes and what does not.

On the Certification of Mitigation Criteria forms carriers use to implement §2644.9, this fencing measure appears as the first of twelve. When you ask your insurer what wildfire mitigation it credits, the fence is literally the first line on the form.

Rating credit, not underwriting mandate

Two words do most of the work here: rating and underwriting. Rating is how a carrier prices a policy it has agreed to write. Underwriting is the decision to write, renew or drop the policy at all. §2644.9 is a rating regulation. Insurers must offer the credit. Homeowners are under no obligation to replace a fence, nothing in the section authorizes an insurer to demand one, and it cannot force a carrier to insure you.

Mercury, which publishes some of the largest mitigation discounts in the state, says this plainly:

"Do wildfire mitigation efforts guarantee coverage? No. Eligibility and renewal decisions are subject to underwriting review."

Mercury Insurance, California wildfire mitigation page

The Board of Forestry has said much the same about the statewide defensible space regulation it approved on August 19, 2026: Zone 0 compliance "won't guarantee insurance." A bill introduced in 2026, SB 1076, would require insurers to cover homes that meet state fire-safety standards, which is itself evidence that no such guarantee exists today.

What carriers publish today

The figures below are the carriers' own published numbers, reported with attribution. They are not promises of what your policy will do. Note that most of these percentages apply to the wildfire portion of the premium, not the whole bill, and eligibility runs through each carrier's underwriting.

We do not report figures for carriers whose discounts we cannot verify from published sources.

The honest math on what it is worth

The fence line item alone is typically worth 0.5%–1.2% at most carriers. For the bigger picture, a Resources for the Future working paper (WP 25-30) reviewed every California rate filing from January 2022 through June 2025 and found the average maximum property-level discount was about 5.65% (roughly $98 a year), with property plus community credits averaging around 13%. Mercury and CSAA are outliers on the high side.

You may also see the Department of Insurance cite a "4%–40%" range for mitigation discounts. It has not published the methodology behind that range, so treat it as illustrative, not as a quote for your policy.

The honest conclusion: the discount alone rarely pays for a fence project. If your fence work is happening anyway, or the real goal is fire performance and staying insurable, the credit is money you are entitled to ask for. It is not, by itself, a reason to replace a fence.

Why a fence is first on the list

The California Department of Insurance puts the fire logic in one sentence:

"Replacing wood fencing connecting to your home with metal is critical because it can act like a candle wick leading fire straight to your home."

California Department of Insurance, Safer from Wildfires

NIST fire researchers use the same image: a fence line fed by mulch or dry vegetation acts as a wick, carrying flame to the structure and holding it there. And the exposure is nearly universal. After the January 2025 Palisades and Eaton fires, IBHS surveyors walked the burn areas: on the parcels examined, more than 95% had a fence, most were wood (about 65%), and roughly six in ten were attached to the home or stood inside the first five feet. The mechanics are covered in our explainer on why fences burn homes.

Why documentation decides whether you get credited

Here is the practical catch. Insurers increasingly price wildfire risk from aerial and model data, and those models commonly resolve at around 30 meters. A fence is invisible at that resolution. Cape Analytics, Nearmap and Verisk publish property-attribute lists that do not mention fences at all. One vendor, ZestyAI, markets a "CA Compliance Pre-Fill" product to California insurers built around the twelve mandatory factors, including fence detection, and claims its wildfire model is used by carriers insuring 40% of the California homeowners market. That is a vendor self-claim, and the exception rather than the rule.

Unless your carrier tells you otherwise, assume it cannot see your fence. The improvement gets counted when you document it: dated photos before and after, material receipts, and the carrier's own certification form. Our compliance documentation guide walks through exactly what to keep.

The real stake: staying insurable

A one-percent line item is not the headline. The California FAIR Plan, where homeowners end up when they cannot find coverage in the standard market, has grown by more than 150% in three years. The thing worth protecting is your ability to get covered at all, and mitigation is one of the few levers a homeowner controls.

Some carriers now attach concrete commitments to documented mitigation. CSAA states that with an IBHS Wildfire Prepared Home certification, "your single-family homeowners policy won't be non-renewed due to wildfire risk and we will renew your homeowners policy for a minimum of three years if you maintain the certification and all other requirements of your policy." The IBHS standard, in turn, requires that all fencing within the first five feet be noncombustible; details are in our IBHS Wildfire Prepared Home fencing guide. Researchers Kousky and You, reviewing filed underwriting criteria, report that Farmers currently insures homes in high fire-risk areas only if they hold the IBHS WPH+ designation. That is the researchers' reading of filed documents, not a carrier statement.

To be equally clear about what is not documented: no published case supports the claim that insurers are non-renewing homeowners over wood fences. No non-renewal letter naming a fence has surfaced, and California publishes no data on non-renewal reasons. What is documented is that carrier inspections have increased and that mitigation affects eligibility at some carriers. Both things can be true at once.

What this means for you

• Ask for the form. Request your carrier's Safer from Wildfires certification form from your agent. Fencing is the first of twelve items on it. You are asking about a credit the carrier is required to offer, not a favor.
• Walk the first five feet. Only the portion of fence or gate within five feet of the building matters for this credit. If a wood fence attaches to the house, a five-foot noncombustible transition section is the targeted fix: it meets the §2644.9 noncombustible-materials measure and matches what the adopted statewide Zone 0 regulation requires (approved August 19, 2026, not yet in effect pending Office of Administrative Law review).
• Document everything. Dated photos before and after, receipts, and the completed certification form. For most carriers, your paperwork is the only way the fence exists.
• Do the math honestly. A 0.5%–1.2% line item will not pay for a fence. Fire performance and insurability are the stronger reasons; the discount is the rebate on work worth doing anyway.
• Keep the insurance rule and the fire rule separate. The insurance credit is in force now. The statewide Zone 0 rule was approved on August 19, 2026 and is not yet in effect, and it does not require wholesale replacement of existing fences. For what it does and does not require, see the California Zone 0 fencing guide.