A wind mitigation inspection documents physical features of your Florida home that reduce hurricane and hail damage. It costs $75–$150, typically saves $200–$2,000 per year in insurance premiums, and the savings stack. Here’s what inspectors actually check and whether it’s worth your time.
What a Wind Mitigation Inspection Is
A wind mitigation inspection is a specialized assessment of your home’s structural and envelope features that resist wind damage during hurricanes and tropical storms. Insurance companies use the results to calculate discounts on your homeowners premium.
Unlike a home inspection, which evaluates the overall condition of a house, a wind mitigation inspection is laser-focused on a specific checklist: roof shape, roof-to-wall connections, deck attachment, secondary water resistance (barriers that prevent interior damage if exterior envelope is breached), and opening protection (shutters, impact glass, etc.).
The inspector documents each feature with photos and measurements, fills out a standardized form (usually the DBPR Form 50.032 Residential Wind Resistance Inspection Form, the official Florida template), and you submit it to your insurance company. Insurers then apply discount percentages based on which features you have.
The Five Core Areas Inspectors Check
Roof Shape and Pitch
Gabled roofs (triangular peak) perform worse in high winds than hip roofs (sloped on all four sides). Wind can get under gable ends and peel the roof away. Hip roofs distribute wind pressure more evenly. Inspectors note your roof shape and pitch angle. Some insurers offer small discounts for hip roofs over gables — typically 2–5%.
Roof Decking Attachment
This is big. How are the plywood or OSB sheets attached to the rafters? Fasteners matter: 6d ring-shank nails are better than smooth nails, bolts are better than nails, and spacing matters (closer spacing = stronger connection). Building code in Florida currently requires 8-inch nail spacing for roof decking in high-wind areas. Older roofs (pre-2000) often have 12-inch or 16-inch spacing, which is weak.
If your deck is properly attached per current Florida Building Code (6d ring nails, 8-inch spacing), you get a discount — typically 8–15% depending on your insurer. If it’s older nail spacing, you don’t get the discount unless you’ve had the deck re-nailed (expensive retrofit: $2,000–$5,000).
Roof-to-Wall Connection
How does the roof structure connect to the walls? Strong connections use straps, clips, or bolts that tie the roof truss to the top plate of the wall. Weak connections use just nails or gravity. In 100+ mph winds, a roof with poor connections can literally separate from the walls and be lifted away.
Modern code requires metal hurricane ties every 2–3 feet. Older homes often have no ties at all. If your roof has proper hurricane ties (or straps or bolts), you qualify for a 6–12% discount. If you don’t have them, retrofit costs $1,500–$3,500.
Secondary Water Resistance
This covers barriers that prevent water intrusion if the primary roof envelope fails. It includes items like:
- Roof sheathing (plywood or OSB under shingles acts as a secondary barrier)
- Roof underlayment (the synthetic or felt material between sheathing and shingles)
- Interior gypsum board on the underside of the roof deck (acts as a final barrier before interior spaces)
- Continuous inspection/access hatches (reduces the number of penetrations in the roof)
Homes with redundant water barriers and proper underlayment quality get small discounts — typically 2–5%. This matters less than deck attachment or roof-to-wall ties, but it adds up.
Opening Protection
Windows, doors, and sliding glass doors are vulnerable to wind-driven rain and impact. “Opening protection” means:
- Impact-resistant windows and doors: Laminated glass that doesn’t break easily (8–15% discount per opening, but only the protected openings count)
- Hurricane shutters: Metal, accordion, or roll-down storm shutters that you can deploy (2–5% discount, but you have to deploy them when storms approach; not all insurers give credit for shutters you don’t deploy automatically)
- Impact doors: Sliding glass doors with laminated/reinforced frames (5–10% discount)
The discount varies by insurer. Some give significant credit for impact windows (10%+), others minimal (2–3%). Some require automatic deployment (motorized shutters) to give credit, others accept manual shutters. Always check your specific insurer’s guidelines before spending money on shutters you might not get credit for.
Typical Costs and Savings: Real Numbers
| Feature | Retrofit Cost (if needed) | Typical Discount Range | Annual Savings (on $1,200 policy) |
|---|---|---|---|
| Inspection itself | $75–$150 | N/A (required for any discounts) | N/A |
| Roof deck attachment (8″ nails) | $2,000–$5,000 | 8–15% | $96–$180/yr |
| Hurricane roof ties | $1,500–$3,500 | 6–12% | $72–$144/yr |
| Impact windows (4 windows) | $3,000–$6,000 | 5–15% (varies widely) | $60–$180/yr |
| Metal hurricane shutters (full house) | $4,000–$8,000 | 2–8% (insurers vary on manual shutters) | $24–$96/yr |
| Hip roof conversion (major) | $15,000–$30,000 | 2–5% | $24–$60/yr |
Notice the math: if you retrofit roof deck attachment for $3,500 and get a 12% discount on a $1,200 annual premium, you save $144/year. Payback is 24 years. That’s marginal.
However, discounts stack. If your home already has some features (hip roof, existing ties), an inspection documents those and unlocks discounts on top of each other. If your inspection reveals zero wind-mitigation features and you’re paying $1,400/year, the inspection might unlock $200–$300/year in savings with no retrofit — just documentation.
The real value is in homes that already have improvements. A 2010 roof with impact windows, proper deck attachment, and roof ties might get 25–35% total discount, which on a $1,200 policy is $300–$420/year. That makes the $100 inspection a no-brainer.
How Discounts Stack
Insurance companies combine discounts. If you get 8% for roof deck attachment and 10% for impact windows, you don’t get 18% total — that’s not how insurance math works. Most insurers apply the larger discount, then a percentage of the remaining premium, or they apply multiplicative discounts.
Example: $1,200 base premium. 10% opening protection discount = $1,080. Then 8% deck attachment = $1,080 × 0.92 = $993.60. You saved $206, not $216.
Always ask your insurer exactly how their discounts combine. Some are capped at a maximum total discount (e.g., no more than 30% off, even with all features). Others apply them sequentially. It varies by company and policy form.
The 5-Year Expiration
A wind mitigation inspection is valid for 5 years. After that, you need a new one to keep the discounts. Some insurers re-qualify every 3–5 years; others check less frequently. When your policy renews, ask whether your previous inspection is still valid or if you need a new one.
This is a hidden cost. If you do a $100 inspection, get $200/year in discounts, and it expires after 5 years, you’ve saved $1,000 gross — but you need to spend another $100 for a new inspection to keep the savings going. It’s still worthwhile, but it’s not a one-time expense.
How To Get a Wind Mitigation Inspection
Contact a wind mitigation inspector licensed in Florida. You can find them through your insurance agent, your homeowners association, or a quick Google for “wind mitigation inspection [your city].” Cost is typically $75–$150.
The inspection takes 1–2 hours. The inspector will go on your roof, examine your deck, check your framing, photograph key areas, and measure fastener spacing and roof pitch. They’ll also look at your doors and windows to document any impact protection.
Once complete, the inspector will give you a copy of the DBPR Form 50.032 (or your insurer’s preferred form). You submit it to your insurance company and ask them to re-rate your policy with the inspection results. Some insurers apply the discounts automatically; others require you to request them explicitly.
Don’t let the inspection sit in a drawer. Some homeowners get it done and never mention it to their insurer, missing out on savings for years.
The Honest Caveat
Savings depend heavily on your home’s age, condition, and your specific insurer. An older home in Miami-Dade County with an inspection showing 1970s-era construction and no hurricane ties might not qualify for many discounts, or the retrofit costs to earn discounts might exceed the savings. A newer home in Tampa Bay with a 2015 roof and proper deck attachment could unlock 20%+ in discounts with just the inspection. If your inspection reveals that a full roof replacement might be the right move anyway, check out our Florida roof cost guide to understand the full scope of replacement expenses and factor them into your mitigation retrofit ROI.
Likewise, insurers weight these features differently. State Farm might give 12% for impact windows; another company might give 3%. Always check with your specific insurer before spending money on retrofits you might not get credit for.
The inspection itself is nearly always worth doing. It costs $100–$150 and documents whatever wind-resistance features you already have. Even if you get only $150/year in unlocked discounts, it pays for itself in one year and keeps paying. It’s the retrofits where you need to do the math carefully.
Want to budget for roof upgrades or understand what your replacement cost might be before you retrofit? Our free instant estimate gives you a baseline for your home’s roof replacement cost in current dollars, so you can compare it against the payback period of mitigation retrofits. It takes 60 seconds — no obligation, no salesman.
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