Facility Maintenance Company Commercial Auto: Pricing Methodology
Exactly how Commercial Auto is calculated for Facility Maintenance Companies — the rating basis, class codes, audit mechanics, experience modifiers, schedule rating, and the renewal-cycle math that determines what you actually pay.
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Commercial Auto premium for Facility Maintenance Companies is calculated <strong>per vehicle</strong>, using ISO loss costs as the framework. Carriers apply their own loss-cost multiplier, your experience modifier (3-year loss history), and schedule rating (underwriter judgment) to produce the final premium. The audit at policy expiration trues up estimated vs actual exposure.
How is Commercial Auto premium calculated for Facility Maintenance Companies?
Facility Maintenance Companies pay Commercial Auto priced per vehicle. The rate per unit is the multiplicand; your declared exposure is the multiplier. The product is your base premium before experience-modifier and schedule-rating adjustments.
Understanding the unit lets you ask the right questions at renewal: which exposure changed, what rate is being applied, and where the schedule credits or debits landed. Without that view, the renewal number arrives unexplained.
Why class codes matter for Facility Maintenance Companies Commercial Auto rating
Before any premium is calculated, the underwriter assigns a ISO classification to the facility maintenance company. That class determines the base rate per vehicle and constrains which carriers can quote at all. The class is set based on the predominant operation — what generates the largest share of revenue or payroll.
Mixed operations create classification challenges. A facility maintenance company that does multiple types of work may legitimately fit in two or three different classes, and the choice between them can swing premium 15-30%. Documenting the operation split clearly in the application reduces the risk of mis-classification.
How does the Commercial Auto audit work for Facility Maintenance Companies?
The audit on Commercial Auto for Facility Maintenance Companies reconciles estimated exposure (used to set the policy premium) against actual exposure (what really happened during the policy period). The auditor pulls payroll records, tax filings, vehicle inventories, or whatever the rating basis requires.
Audits are not optional. Refusing to provide audit data typically results in the carrier applying maximum exposure assumptions and billing the difference — a much worse outcome than cooperating with a clean audit.
How a typical facility maintenance company Commercial Auto premium adds up
A facility maintenance company can model their own Commercial Auto premium movement at renewal by understanding the five factors that produce it. Base rate × exposure × experience modifier × schedule rating × surcharges = premium.
What this means in practice: if your exposure (revenue, payroll, etc.) drops 10%, expect roughly a 10% reduction in base premium before adjustments. If your experience modifier improves from 1.05 to 0.95, that's a 9.5% credit on top. The math is layered but predictable.
The renewal-time math for Facility Maintenance Companies Commercial Auto
At renewal, the Facility Maintenance Companies Commercial Auto premium recalculates with updated inputs: the new base rate (from any approved rate filings), updated exposure (declared or audited), refreshed experience modifier, and any schedule-rating adjustments the underwriter applies.
The combined effect determines the renewal premium. A flat renewal year on a clean account might be ±3-5%. Years with claims or significant exposure changes can move premium ±20-40% or more.
Why two carriers price the same Facility Maintenance Companies risk differently on Commercial Auto
Two carriers can quote the same facility maintenance company on Commercial Auto and produce premiums that differ 15-30%. The difference comes from carrier-specific loss-cost multipliers (each carrier's adjustment to the ISO base rate), schedule-rating philosophy, and target loss ratios for the segment.
Some carriers actively pursue facility services business and price aggressively for it; others see the segment as marginal and price defensively. Knowing which carriers are currently in either bucket is the broker's job — and it materially affects which markets to target.
Where Facility Maintenance Companies accounts most often get over-rated on Commercial Auto
Three methodology errors account for most Facility Maintenance Companies Commercial Auto overpayments: mis-classification (a class assignment that doesn't match the predominant operation), over-stated exposure (more revenue/payroll declared than reality), and unclaimed credits (schedule rating left on the table).
The fix is process, not policy. Pre-renewal audits catch these errors before they get baked into another year of pricing.
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Chris DeCarolis
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Chris DeCarolis is a Senior Commercial Insurance Advisor at Coverage Axis. His experience in commercial risk placement started in 2007. He has helped contractors, trades, and specialty businesses build coverage programs that fit their operations — specializing in general liability, workers comp, commercial auto, and umbrella programs for high-risk industries. Chris holds a Florida 220 General Lines license (G038859) and is a graduate of Brown University.
COMMON QUESTIONS
Frequently Asked Questions
Rated per vehicle, with ISO setting the base loss cost. Each carrier applies its own loss-cost multiplier, your experience modifier, and underwriter schedule-rating credits or debits to produce the final premium.
Each carrier has its own loss-cost multiplier, schedule-rating philosophy, and target loss ratio for facility services. Spreads of 15-30% between cheapest and most expensive are normal.
Three years. Claims roll out of the experience-mod window on their 3rd anniversary. After that, the claim no longer directly affects the mod (though it may still be in the loss history carriers review).
The unit your premium is rated against — for this coverage, that is per vehicle. Higher exposure means higher base premium; lower exposure means lower base premium, all else equal.
Four inputs refresh: rates (state filings), exposure (your actuals), experience modifier (rolling 3-year loss window), and schedule rating (underwriter judgment). Any of those moving moves the renewal.
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