General liability is typically the single largest insurance line item for commercial roofing contractors, and it is also the one with the widest pricing variation between otherwise similar operations. Two $5M-revenue commercial roofers can see GL quotes ranging from $35,000 to $85,000 depending on work type, loss history, subcontractor usage, and market timing. Understanding what drives this pricing helps you manage costs and avoid surprises at renewal.
Revenue as the Primary Rating Basis
Commercial roofing general liability is rated per $1,000 of gross revenue. The rate itself varies by carrier and risk profile, but the revenue number is the multiplier that scales everything. For Texas commercial roofers, rates typically fall between $8 and $18 per $1,000 of revenue, producing these approximate ranges:
- $2M revenue at $10/thousand = $20,000 base premium
- $5M revenue at $12/thousand = $60,000 base premium
- $10M revenue at $14/thousand = $140,000 base premium
The rate per thousand tends to increase as revenue grows because carriers associate higher revenue with more crews, more jobsites, and greater coordination complexity—all of which increase the probability of a claim.
Projected vs. audited revenue: Your policy is issued based on projected revenue for the upcoming year. At policy expiration, the carrier audits your actual revenue and adjusts premium accordingly. If you projected $4M and did $6M, you owe the difference—often at a slightly higher effective rate because you underreported. If you projected $4M and only did $2.5M, you receive a return premium.
This audit mechanism means your GL cost is never truly fixed until the policy period closes. Accurate forecasting protects cash flow. Deliberately underreporting to reduce upfront premium is a short-term tactic that backfires at audit, sometimes with penalty surcharges for material misrepresentation.
Work Type and Hazard Grade
Not all commercial roofing work carries the same liability exposure. Carriers evaluate your work mix and assign pricing accordingly:
Lower hazard (lower rates):
- TPO/PVC single-ply membrane installation (cold-applied, no flame)
- EPDM rubber roofing
- Roof coatings and restoration systems
- Single-story structures
Moderate hazard:
- Standing seam metal roofing
- Built-up roofing (BUR) with cold-applied adhesives
- Tear-off and replacement (disposal liability, debris exposure)
- Multi-story work (3–6 stories)
Higher hazard (higher rates):
- Torch-applied modified bitumen
- Hot-mopped BUR with kettles
- Spray polyurethane foam
- High-rise work (7+ stories)
- Occupied building re-roofing (tenant disruption claims)
A contractor doing exclusively cold-applied TPO on warehouses might qualify for rates at $8–$10 per thousand. The same revenue doing torch-down on occupied multi-story buildings could face $15–$18 per thousand. The work type alone can double the premium on identical revenue.
Tear-off work specifically increases rates because of the debris and property damage exposure. Wind-blown materials from an active tear-off that damage adjacent properties or vehicles are common claims. Carriers want to know what percentage of your work involves tear-off versus overlay or new construction.
Claims History and Loss Ratios
Your five-year loss run is the most scrutinized document in a GL submission. Carriers calculate your loss ratio—total incurred losses divided by total earned premium—and use it to gauge future performance.
Favorable pricing territory: Loss ratios below 40% over five years. These contractors get the best rates and broadest carrier access.
Acceptable: Loss ratios between 40–60%. Standard pricing, no surcharges, but limited negotiating leverage.
Problematic: Loss ratios above 60%. Expect rate increases, restricted coverage terms, or non-renewal. Above 80%, you are likely moving to E&S markets at premium rates.
Claim frequency matters more than individual claim size for underwriting decisions. Three $25K claims signal a pattern. One $75K claim might be an anomaly. Carriers also look at claim type—completed operations claims (leaks after project completion) are viewed more seriously than premises claims because they suggest systemic quality issues.
Non-renewal triggers: Most carriers will non-renew after two consecutive years with loss ratios above 70%, any single claim exceeding 50% of annual premium, or any fraud/misrepresentation finding. A non-renewal forces you into surplus lines markets where rates can be 30–50% higher than standard.
Subcontractor Usage and Additional Insured Requirements
How you use subcontractors significantly affects your GL pricing. Carriers evaluate sub usage from two angles:
Revenue offset: Some carriers allow you to deduct subcontracted revenue from your GL rating basis if subs carry their own GL with proper limits and additional insured endorsements. This is not universal—many roofing-focused programs rate on total revenue regardless of sub usage. Ask specifically how sub costs are treated in the rating.
Contingent liability: Even with sub exclusions, carriers price in the risk that a sub's insurance fails to respond—due to policy cancellation, exclusions, or inadequate limits—leaving you exposed. The more revenue you push through subs, the more carriers worry about this gap. Contractors using subs for more than 40% of revenue often face a 10–15% surcharge for contingent exposure.
Additional insured requirements: On commercial projects, you are typically required to add the GC, property owner, and sometimes the lender as additional insureds on your GL policy. This does not increase your premium directly, but it broadens who can file claims under your policy and extends your completed operations coverage to protect those parties. Carriers factor the volume and type of additional insured endorsements into their risk assessment.
Carriers want to see a formal subcontractor qualification process: written agreements, certificate verification before work begins, minimum insurance requirements, and hold-harmless agreements. Contractors who can demonstrate this discipline earn better rates than those who use subs haphazardly.
Market Conditions and Carrier Capacity
Beyond your individual risk characteristics, the broader insurance market cycle affects your GL premium significantly. The commercial roofing GL market has been in a hard cycle since approximately 2019, driven by:
Catastrophic loss years: Texas hailstorms in 2019, 2021, and 2023 generated billions in roofing claims. While much of this falls on property carriers, the GL market feels it through completed operations claims (roofs that were installed and failed during storms) and through general carrier profitability challenges.
Social inflation and nuclear verdicts: Texas jury awards in construction defect and bodily injury cases have escalated dramatically. A slip-and-fall on a commercial property that might have settled for $150K a decade ago now produces $500K+ verdicts. This severity trend forces carriers to increase GL rates across the construction sector.
Reduced carrier capacity: Several carriers have exited commercial roofing GL entirely since 2020. Fewer carriers competing for business means higher rates. The carriers that remain have leverage to demand rate increases and tighter terms.
Reinsurance costs: Carriers purchase their own insurance (reinsurance) to protect against catastrophic loss years. Reinsurance costs have increased 25–50% since 2021, and those costs are passed directly to policyholders through higher primary rates.
In a soft market (more carriers competing, rates declining), a clean commercial roofer might see GL rates at $7–$9 per thousand. In the current hard market, the same risk is $11–$15 per thousand. Market cycle position alone can account for a 40–60% swing in pricing—independent of anything you control.
The takeaway: some GL cost factors are within your control (work type selection, safety, claims management, sub qualification), while others are not (market cycle, cat losses, jury award trends). Focus energy on what you can control, maintain strong documentation and loss runs, and work with an agent who understands the specialty roofing market well enough to identify which carriers are still actively writing your specific risk profile. The commercial roofing GL market rewards contractors who present clean, well-documented risks—even in hard market conditions, these accounts find coverage 15–25% below what the same revenue pays with messy submissions.