A new roof drops your homeowners insurance premium because:
- Roof age clock resets to 0
- Insurer's expected-claim probability drops sharply for years 1-15
- Class 4 + impact-resistant installations qualify for separate
discount
But you have to submit the right paperwork to capture the savings.
Carrier-by-carrier (April 2026)
Based on a typical $2,200/year NAZ homeowners' premium ($550K
insured value):
| Carrier | New roof discount | Class 4 add'l | Total | Annual savings |
|---------|-------------------|---------------|-------|----------------|
| State Farm | 12% | 28% (wind/hail line only) | up to 22% | $480 |
| Farmers | 10% | 22% | up to 18% | $396 |
| Allstate | 11% | 25% | up to 20% | $440 |
| Liberty Mutual | 8% | 17% | up to 14% | $308 |
| USAA | 9% | 15% | up to 13% | $286 |
Note: discounts are NOT additive in the simple way. The Class 4
discount applies only to the wind/hail portion of the premium
(~30% of total). The "new roof" discount applies broadly.
What you have to submit
Standard documentation:
- Permit + inspection record (from your county)
- Contractor invoice with:
- AZ ROC license number
- Material brand + SKU
- Installation date
- Square footage
- Manufacturer warranty
- Manufacturer Class 4 cert (if applicable)
- Photos: before, during, after
Submit to your insurance agent within 30 days of completion.
Common pitfalls
- Forgetting to submit. Carriers don't auto-apply new-roof
discounts. Many homeowners don't claim it.
- Roof was technically not "new" — partial repair, not
full replacement. Check your contract — was 75%+ of the surface
replaced?
- Contractor not properly licensed. Carriers want AZ ROC
license number on file. No license = no discount.
- Class 4 claim without manufacturer cert. The cert (a single
page on letterhead) is mandatory.
When to switch carriers
A new roof + 22% premium drop is also a great time to comparison
shop. AZ DOI premium-comparison data shows ~$200-$400/yr difference
between cheapest + most expensive carrier on identical coverage in
NAZ markets.
Use the post-roof inspection as fresh ammunition for shopping —
every carrier you quote will be coming in with the new-roof
+ Class 4 discount baked in.