Homeowners Exclusions, Duties and Valuation

Key Takeaways

  • Flood and earth movement need the applicable exclusions and efficient-proximate-cause analysis.

  • Protect property and provide reasonably required claim evidence.

  • Valuation, deductible and insurance-to-value terms are separate calculations.

  • California disaster deadlines can supersede older national-form summaries.

Last updated: October 2026

Homeowners Exclusions, Duties and Valuation

Property exclusions, postloss duties and valuation determine the amount owed after a covered event. California statutory protections can modify a national form’s proof, suit and replacement-cost deadlines.

Section I General Exclusions

Standard homeowners forms contain absolute general exclusions that apply across Coverages A, B, C, and D, reinforced by concurrent causation language:

  1. Water Damage: Excludes damage caused by: (a) flood, surface water, waves, tidal water, storm surge, or overflow of a body of water; (b) water or water-borne material backing up through sewers or drains, or overflowing from a sump pump; and (c) water below the surface of the ground exerting pressure on foundations, basements, or paved surfaces.
  2. Earth Movement: Excludes earthquake, landslide, mudslide, mudflow, earth subsidence, sinkhole collapse, or volcanic blast/shock. (Ensuing direct loss by fire or explosion is covered).
  3. Off-Premises Power Failure: Excludes losses resulting from power or utility service interruption originating off the residence premises. If the power failure causes a covered peril to occur on premises (such as a power surge igniting a structural fire), the ensuing fire damage is covered.
  4. Neglect: Excludes damage resulting from the failure of the insured to use all reasonable means to save and preserve property at and after the time of a loss.
  5. War and Nuclear Hazard: Absolute statutory exclusions applying to all military action, insurrection, nuclear reaction, radiation, or radioactive contamination.
  6. Intentional Loss: Excludes any loss arising out of an act committed by or at the direction of an insured with the intent to cause damage.
  7. Wear and Tear / Maintenance Exclusions: Wear and tear, marring, deterioration, mechanical breakdown, latent defect, rust, corrosion, wet or dry rot, smog, smoke from agricultural smudging, settling, shrinking, bulging, or expansion of pavements, foundations, or walls.
  8. Mold, Fungus, and Spores: Excluded unless the mold or rot is hidden within walls, floors, or ceilings and results directly from the accidental discharge or overflow of water from a plumbing or heating system.

Section I Conditions: Insured's Duties After a Loss

When a property loss occurs, the insured must fulfill specific contractual conditions before recovering policy proceeds. An adjuster must verify compliance with each duty:

  1. Give Prompt Notice: Provide immediate notice of the loss to the insurer or its authorized agent.
  2. Notify Law Enforcement: Notify the police immediately if the loss is caused by the peril of theft.
  3. Notify Credit Card Companies: Notify credit card or electronic fund transfer companies in cases of stolen or compromised cards.
  4. Protect the Property: Take all reasonable steps to protect the property from further damage, make necessary and reasonable emergency repairs (such as tarping a damaged roof or boarding broken windows), and maintain an accurate record of repair expenditures.
  5. Prepare a Detailed Inventory: Compile a comprehensive inventory of damaged personal property, detailing quantities, descriptions, actual cash values, and exact loss amounts claimed, attaching all supporting bills, receipts, and invoices.
  6. Exhibit Property & Submit to EUO: As often as reasonably required, exhibit the damaged property to the adjuster, provide access to books and financial records, and submit to an Examination Under Oath (EUO) while not in the presence of any other insured.
  7. Submit Sworn Proof of Loss: Submit to the insurer, within 60 days after the insurer's request, a signed, sworn statement in proof of loss setting forth the time and cause of loss, interests of all insureds and lienholders, specifications of damaged buildings, and inventory schedules.

Valuation and Coinsurance Settlement

Under HO-2, HO-3, and HO-5 forms, structural losses under Coverages A and B are settled on a Replacement Cost basis without deduction for depreciation, provided the insured maintains coverage equal to at least 80% of the full replacement cost of the building immediately prior to the loss:

Coinsurance / Replacement Cost Formula:

Claim Payment = [(Insurance Carried) / (Insurance Required: 80% of Replacement Cost)] × Loss Amount − Deductible

If the insurance carried is less than 80%, the insurer pays the larger of: (1) the actual cash value (ACV) of the damaged property, or (2) the proportion determined by the coinsurance formula. In contrast, personal property under Coverage C is settled at Actual Cash Value (ACV) (replacement cost minus physical depreciation) unless the Personal Property Replacement Cost endorsement is attached.

California conditions and exclusions

An ordinary form proof-of-loss provision does not override California emergency protections: for a qualifying loss the insurer cannot require proof less than 100 days after loss, with three-month good-cause extensions for delays beyond the insured's control. The standard fire-policy suit period is ordinarily 12 months after inception of loss and 24 months for emergency-related losses, with applicable tolling and other legal requirements. Do not confuse that suit period with the 36 months from first ACV payment to collect replacement cost on a qualifying disaster loss.

Coverage E and F have their own notice, cooperation and voluntary-payment conditions. Common conditions address concealment/fraud, subrogation, other insurance, policy changes and cancellation. Liability duties require forwarding suit papers and cooperating with defense; a property inventory alone does not meet them. The policy's definitions of insured and insured location also vary by coverage.

For multiple causes, identify the efficient proximate cause under California law before applying exclusions. CIC § 530.5 specifically addresses certain losses following landslide or mudslide when fire or another covered peril is the efficient proximate cause. A flood or earth-movement label does not replace an investigation of the causal sequence. Exclusions and anti-concurrent language must be read with applicable California law.

Test Your Knowledge

Heavy rains cause a municipal storm sewer line to back up, forcing raw sewage into a homeowner's basement through a floor drain and damaging the finished flooring and furnace. The homeowner holds an unendorsed HO-3 policy. How should the adjuster resolve the claim?

A

Pay the claim in full under Coverage A because the sewer line was owned by a third party municipality

B

Pay the claim under Coverage B Other Structures because the drain connects to off-premises systems

C

Pay the claim under Coverage D Additional Living Expense while denying the structural damage

D

Deny the claim because Section I contains an explicit water damage exclusion for water or water-borne material backing up through sewers or drains

Sections you finish are checked off in the contents.