Impact Windows Insurance Discount Florida: Save Up to 45% on Your Premium (2026)
If you own a home in Florida, you are likely paying some of the highest homeowner's insurance premiums in the country. What most homeowners do not realize is that installing impact windows is one of the few upgrades that is guaranteed by Florida state law to reduce your insurance costs — every single year.
This guide explains exactly how the discount works, how much you can realistically save, what documentation you need, and the step-by-step process to claim your discount after installation.
Quick answer
- The law: Florida Statute 627.0629 requires insurers to offer discounts for wind-resistant features, including impact-rated openings (in effect since 2002).
- Typical range: roughly 20 to 50 percent off the windstorm portion of the premium in Broward, and about 10 to 45 percent statewide, depending on the carrier and your home.
- The proof: a wind mitigation inspection on Form OIR-B1-1802, typically $75 to $150.
- The timing: submit the form to your insurer before your renewal date; carriers commonly take about 2 to 3 weeks to process it.
Florida Law Requires Insurers to Offer This Discount
This is not a voluntary program. Under Florida Statute 627.0629, every insurance company offering residential property insurance in Florida is required by law to provide premium discounts, credits, or rate differentials for homes that have wind mitigation features, including impact-rated windows and doors.
The law exists because impact windows dramatically reduce the risk of catastrophic storm damage. When a window fails during a hurricane, wind enters the structure and can lift the entire roof from the inside out. Impact windows prevent this chain of failure, which means fewer catastrophic claims for insurers — and lower premiums for you.
The statute has been on the books since 2002, and insurers must apply the credits to the premium once you provide the required verification. Exact percentages are set in each carrier's rate filings, so they differ from company to company. Ask your agent for the specific credit your carrier gives for opening protection.
How Much Can You Save?
The discount varies based on your insurer, your county, your home's age, and whether all openings are protected. Based on published carrier filings and real homeowner data across South Florida in 2026:
- Miami-Dade and Broward County: typically 20 to 50 percent off the wind portion of your premium (typical market range, not a guarantee)
- Palm Beach County: typically 20 to 40 percent off the wind portion
- Rest of Florida: 10 to 30 percent off the windstorm component
In practical terms, for a homeowner paying $4,000 per year in premiums:
- A 25 percent discount saves $1,000 per year
- A 35 percent discount saves $1,400 per year
- A 45 percent discount saves $1,800 per year
Over 10 years, that is $10,000 to $18,000 in savings from insurance alone. Add energy savings of $50 to $150 per month from better insulation, and impact windows can pay for themselves faster than most homeowners expect.
Why the Wind Portion Matters
Florida homeowner's insurance is split into components. The wind or windstorm portion is typically the most expensive part of your policy in South Florida — often 40 to 60 percent of your total premium. The impact window discount applies specifically to this component, which is why the savings are so significant in hurricane-prone counties like Miami-Dade, Broward, and Palm Beach.
What You Need to Qualify for the Maximum Discount
To receive the full insurance discount for impact windows in Florida, four things must be true.
1. All openings must be protected
Insurance companies require that every opening in the home — windows, doors, skylights, and garage doors — be protected by either impact-rated products or approved shutters. Partial coverage may result in a partial or no discount, depending on the carrier.
2. Products must carry Florida approvals
Impact windows must hold a Miami-Dade County Notice of Acceptance (NOA) or a Florida Product Approval number. This verifies that the products were tested and certified to meet the Florida Building Code. Brands like PGT, ESW (ES Windows), and Mr. Glass all carry the required approvals.
3. Installation must be permitted and inspected
The windows must have been installed by a licensed contractor with a valid building permit, and the work must have passed final inspection with the local building department. Unpermitted work does not qualify and can create serious problems when filing a claim.
4. You must complete a wind mitigation inspection
A licensed wind mitigation inspector must visit your home and complete Form OIR-B1-1802, the official Florida Wind Mitigation Report. This form documents your home's opening protection and is submitted to your insurer to apply the discount.
What Is the Wind Mitigation Inspection and What Does It Cost?
The wind mitigation inspection is a formal evaluation performed by a licensed inspector — typically a home inspector, engineer, or certified contractor. The inspector examines your windows, doors, roof, and other structural elements and documents everything on the state-approved OIR-B1-1802 form.
The inspection typically costs between $75 and $150 and is valid for five years. In most cases, the first year of insurance savings covers the cost of the inspection many times over.
The inspector will document:
- Product approval numbers for each window and door
- Installation method and framing details
- Permit records and contractor information
- Photographs of all protected openings
Step-by-Step: How to Claim Your Discount
Step 1: Install impact windows through a specialist who coordinates the required permits. Vieser Construction handles the full process including measurement, permitting, installation, and final inspection.
Step 2: Wait for the final building inspection to be approved. This is the official sign-off that confirms the installation meets Florida Building Code requirements.
Step 3: Hire a licensed wind mitigation inspector to complete the OIR-B1-1802 form. Your contractor can often recommend a trusted inspector.
Step 4: Submit the completed wind mitigation report and supporting documentation to your insurance company. Most carriers accept this directly or through your agent.
Step 5: Your insurer applies the discount. For existing policies, some carriers apply the discount mid-term. For new policies, the discount is reflected at your next renewal.
The OIR-B1-1802 Form: What It Documents
The OIR-B1-1802 is the state's Uniform Mitigation Verification Inspection Form. Your insurer uses it to decide which wind credits apply to your policy. It records these features of the home:
- Roof covering and its permit or code compliance
- Roof deck attachment
- Roof-to-wall connection
- Roof shape
- Secondary water resistance
- Opening protection: whether every window, door, skylight, and garage door is protected. This is the section that impact windows and doors improve.
For a full walkthrough of each section, see our wind mitigation inspection guide.
Checklist: From Installation to Insurer Credit
- Confirm the permit passes final inspection and closes with the building department.
- Gather your product approval numbers (NOA or Florida Product Approval), permit records, and final inspection sign-off.
- Check that every opening is protected, including doors, skylights, and the garage door.
- Book a wind mitigation inspection with a qualified, licensed inspector (typical range $75 to $150).
- Receive the completed OIR-B1-1802 form and photos.
- Send the form to your insurance agent or carrier and request a re-rating in writing.
- Follow up until the corrected premium or credit appears on your policy.
- Keep a copy of the report for renewals, since carriers may ask for an updated one after several years or after changes to the home.
Timing and Cost at a Glance
| Item | Typical range | Notes |
|---|---|---|
| Wind mitigation inspection | $75 to $150 | About 1 to 2 hours on site |
| Insurer processing | About 2 to 3 weeks | Varies by carrier |
| Windstorm credit, Broward | About 20 to 50% | Depends on carrier and home features |
| Windstorm credit, statewide | About 10 to 45% | Depends on carrier and county |
| When to submit | Before your renewal date | Ask your agent about mid-term credits |
Percentages and timelines are typical market ranges, not guarantees. Your carrier's filed rates determine your actual credit.
How Much Does the Documentation Cost?
Here is a realistic breakdown of the costs to access your insurance discount:
- Wind mitigation inspection: $75 to $150
- No additional fees — your contractor provides the permit and product approval records as part of the installation
The documentation costs are minor compared to the annual savings. Most South Florida homeowners recover the full cost of the inspection within the first month of the discount being applied.
Will Partial Coverage Qualify?
Replacing only some windows may result in a reduced discount or no discount, depending on your carrier. The state's wind mitigation framework rewards complete opening protection. If budget is a concern, it is worth contacting your insurance company before installation to understand exactly how their discount tiers work. In some cases, phasing the project strategically — covering all openings in stages while maintaining shutter protection on the remainder — can help maintain eligibility.
What About the My Safe Florida Home Program?
The My Safe Florida Home (MSFH) Program is a state-administered initiative that previously offered free wind mitigation inspections and matching grants of up to $10,000 for eligible homeowners to fund wind mitigation upgrades including impact windows. Funding has historically been exhausted quickly each time the program opens. It is worth checking the Florida Division of Emergency Management website to see if the program is currently accepting applications, as it can significantly reduce the out-of-pocket cost of your project.
How Impact Windows Compare to Hurricane Shutters for Insurance Purposes
Both impact windows and hurricane shutters can qualify you for wind mitigation discounts. However, there are meaningful differences in how carriers treat them:
Impact windows qualify as permanent opening protection and are recognized year-round. Shutters must be deployed to be effective and some carriers may require documentation that shutters are properly maintained and accessible. Impact windows also eliminate the annual cost and labor of deploying and storing shutters, which can add up over time.
From a pure insurance standpoint, fully impact-rated windows typically receive the same or better discount tier as approved shutters in Florida's coastal counties.
How Windows Stock Market Helps You Save More
The biggest obstacle for most homeowners is the upfront cost of a full impact window installation. Windows Stock Market addresses this directly by offering verified in-stock impact windows from local sellers at 30 to 60 percent below retail pricing.
These are brand-name products — PGT, ESW, and Mr. Glass — that carry all required Florida approvals and NOA certifications. Buying in-stock means the material cost is significantly lower than a custom factory order, while the insurance savings remain exactly the same.
Combined with professional installation through Vieser Construction with full permitting and inspection services, a complete impact window project through Windows Stock Market can be one of the most financially sound home improvements you make in Florida.
Related Guides
- Impact window cost in Florida
- Wind mitigation inspection guide (OIR-B1-1802)
- Permit guide: Broward, Miami-Dade and Palm Beach
- PGT vs ESW vs Mr. Glass comparison
- Impact windows in Broward County
- Impact windows in Miami-Dade County
- Impact windows in Palm Beach County
Ready to see how much you can save? Browse in-stock impact windows at Windows Stock Market or call Vieser Construction for a free estimate at (754) 303-7130.