Hurricane season runs June 1 through November 30 — six months when every Florida homeowner’s doors and windows are the difference between a manageable inconvenience and a five-figure insurance claim. The 2024 and 2025 seasons made that point bluntly across both coasts: homes with proper impact-rated openings rode out Category 3 and 4 storms with minimal damage, while homes with older single-pane glass and standard exterior doors saw water intrusion, blown-out openings, and full envelope failures.
This guide pulls together everything a Florida homeowner actually needs to know about hurricane door and window prep — what the building code requires, what impact ratings really mean, where Florida’s building zones differ, and the prep checklist to run before every season. Built from 20+ years of installing impact products across Miami-Dade, Broward, Palm Beach, Lee, Collier, and the rest of Florida.
What Florida’s Building Code Actually Requires
Florida’s exterior opening requirements aren’t uniform across the state. The rules tighten the closer you get to the coast and the further south you go.
High-Velocity Hurricane Zone (HVHZ)
Miami-Dade and Broward counties operate under the strictest residential building code in the United States: the High-Velocity Hurricane Zone. Every exterior opening — windows, sliding doors, entry doors, garage doors — must either be:
- Impact-rated and tested to specific HVHZ standards (TAS 201, 202, 203), OR
- Protected by hurricane shutters or panels that meet HVHZ approval
There is no third option. A non-impact, non-shuttered opening is a code violation in HVHZ jurisdictions and will fail final inspection on new construction or remodels.
Wind-Borne Debris Region (WBDR)
Most of the rest of Florida — Tampa Bay, Orlando, Jacksonville, the Panhandle coast, and inland counties within 1 mile of the coast — falls under the Wind-Borne Debris Region. Requirements are similar in concept but with somewhat lower wind pressure thresholds (typically +/- 50 psf design pressure vs. HVHZ’s higher standards).
The same impact-or-shuttered requirement applies, just calibrated to slightly lower wind speeds.
Inland Florida
Counties more than 1 mile from the coast in central and northern Florida have lighter requirements — but most local jurisdictions still require some level of opening protection on new construction. Even in non-WBDR areas, insurance carriers increasingly require impact products for full hurricane coverage.
What “Impact-Rated” Actually Means
An impact-rated door or window has been tested in a lab to survive:
- Large missile impact — typically a 9-pound 2x4 fired at 50 mph, hitting the glass three times in different locations
- Cyclic pressure testing — 9,000 cycles of positive and negative pressure to simulate sustained hurricane winds
- Air, water, and structural load standards for the specific wind zone
Glass that survives these tests is laminated — two panes bonded with a polymer interlayer that holds the glass together when struck. Even when the glass cracks, the interlayer keeps the opening sealed against wind and water.
What impact-rated doesn’t mean: unbreakable. The glass will crack. It just won’t let the storm into your house. That’s the whole product.
Impact Doors and Windows vs. Hurricane Shutters
Both protect openings — they just have completely different operational profiles.
| Factor | Impact-Rated Products | Hurricane Shutters |
|---|---|---|
| Always-on protection | Yes | Only when deployed |
| Time to “secure” before a storm | Zero | 30 min to several hours |
| Daily UV / sound benefits | Yes (laminated glass) | None |
| Insurance discount | Higher | Moderate |
| Visual appearance daily | Normal | Tracks/wing-walls visible |
| Initial cost | Higher | Lower (especially panels) |
| Long-term cost | Lower (no annual handling) | Higher (storage, maintenance, replacement) |
| Resale value | Adds significant value | Adds modest value |
| Owner effort during storm | None | Manual deployment required |
For Florida homeowners staying year-round, impact products typically win on a 10-year total cost of ownership — even though the upfront install is more expensive. We dig into the math in Impact Windows vs. Shutters: A Long-Term Investment Analysis.
The Sliding Glass Door Problem
Sliding glass doors are the single largest hurricane vulnerability in most Florida homes. They’re large, glass-heavy, and structurally compromised compared to a wall — wind and water find them first.
What goes wrong with non-impact sliding doors during a hurricane:
- Glass breach. Standard tempered or annealed glass shatters on first significant impact.
- Frame deformation. Cheaper aluminum frames flex under pressure, breaking the seal.
- Track water intrusion. Even if the glass holds, sliding tracks aren’t designed for the water volumes a hurricane delivers.
- Roller failure. A sliding door already struggling on damaged rollers is the first to fail under cyclic pressure.
This is also why we see so many sliding door emergency repair calls in the days leading up to a named storm — homeowners discover their doors don’t slide, lock, or seal properly only when they’re trying to lock down before the storm arrives. Run our coastal sliding door maintenance checklist at the start of every hurricane season.
For older sliding doors that are already showing wear, our hurricane protection options for sliding doors cover the full upgrade and reinforcement path.
The Pre-Season Checklist (Run This Every May)
Every Florida homeowner should run this checklist before June 1, when hurricane season starts. It takes about 90 minutes for a typical home.
1. Inventory Every Exterior Opening
List every door and window that connects the inside of your house to the outside. Include garage doors, French doors, sliding glass doors, entry doors, side doors, and every window.
2. Verify Impact Rating Status
For each opening, find the manufacturer’s label or product approval number. In Florida, every code-compliant impact product carries a Florida Product Approval (FL number). If you can’t find the label, the opening is almost certainly not impact-rated — assume non-impact and plan accordingly.
3. Test Every Lock and Latch
Every sliding door, French door, and window should lock fully and easily. A door that won’t lock is a door that won’t seal under pressure. Common issues we see in May service calls:
- Sliding door locks that won’t engage because tracks are misaligned
- Pocket door latches that don’t catch
- Window locks corroded shut from salt air
- Deadbolts that grind on the strike plate due to settling
If any opening doesn’t lock cleanly, get it serviced before the season starts. Last-minute pre-storm calls are the most expensive.
4. Inspect Weatherstripping and Seals
Run your hand around every door and window seal. Brittle, cracked, or missing weatherstripping is a primary water-intrusion path even for code-compliant openings. Replace any failing seals before storm activity picks up. We covered the diagnostic process in detail in the ultimate guide to fixing sliding door and window leaks.
5. Audit Hurricane Shutters or Panels
If you rely on shutters or panels:
- Open and close every accordion or roll-down shutter to verify smooth operation
- Locate every storm panel and confirm matching anchor bolts are present
- Test deployment time with one helper — it should take less than 60 minutes for a typical home
- Replace any missing or stripped fasteners
If shutter deployment takes more than 90 minutes, you need either better-organized panels or upgraded shutters (or impact products, which require zero deployment time).
6. Document Everything
Photograph every exterior opening, every shutter, every product approval label. Store these photos in cloud storage you can access without power. Insurance claims after a storm move dramatically faster when pre-storm documentation exists.
7. Identify Upgrade Priorities
If your home has any non-impact sliding glass doors, French doors, or large picture windows, those are the highest-priority upgrades for the next off-season. Sliding glass doors specifically are the most common opening to fail in major Florida storms — and the most expensive to replace under emergency conditions.
Garage Doors: The Forgotten Failure Point
Most Florida hurricane prep guides ignore garage doors entirely. That’s a mistake. A blown-in garage door is one of the fastest paths to total roof failure during a hurricane — once the door fails, internal pressure spikes and pushes the roof off from the inside.
In HVHZ jurisdictions, every new garage door is required to be impact-rated or reinforced to specific wind pressure standards. In WBDR jurisdictions, the requirement is similar with slightly lower thresholds.
If your garage door is more than 15 years old, has visible flex during normal wind, or doesn’t have a manufacturer label confirming impact rating — get it evaluated before the next season.
When to Upgrade vs. Repair
The decision tree for non-impact sliding doors and windows:
Repair makes sense when:
- The frame is sound and code-compliant
- The damage is limited to rollers, tracks, weatherstripping, or hardware
- You’re in a non-WBDR area with no insurance pressure
- You’re 5+ years from a planned remodel that would replace the opening anyway
Upgrade to impact makes sense when:
- You’re in HVHZ (Miami-Dade, Broward) and the opening is non-impact
- Multiple components are failing at once
- The opening is original to a 1990s or earlier home
- Your insurance carrier is requiring it
- You’re remodeling and can permit-bundle the upgrade
We covered the full repair-vs-replace economics in Sliding Door Repair vs. Replacement: What Saves You More? and the cost side in How Much Does It Cost to Replace a Sliding Glass Door?.
Frequently Asked Questions
Are impact windows worth it in Florida?
For homes within 1 mile of the coast or in HVHZ jurisdictions, impact windows are essentially mandatory either by code or by insurance requirements. For inland homes outside the WBDR, the calculation is more nuanced — impact products still deliver year-round benefits (UV protection, sound dampening, security) and meaningful insurance discounts, but the cost recovery is slower.
Do impact doors prevent all hurricane damage?
No. Impact-rated openings are designed to maintain the building envelope during a hurricane — meaning they prevent catastrophic interior pressure changes that lead to roof failure. They will not prevent superficial damage (the glass may still crack), but they keep the storm outside the house. For a home with properly installed impact products and a sound roof, hurricane damage is typically limited to landscaping and exterior trim.
How much does it cost to upgrade to impact-rated doors and windows in Florida?
Costs vary widely by home size, opening configuration, and product tier. Rough budget guidance for a typical 2,000 sq ft Florida home:
- Impact windows: $800-$1,500 per opening
- Impact sliding glass door: $4,000-$8,000 per door
- Impact entry door (single): $2,500-$5,000
- Whole-home impact upgrade: $25,000-$60,000
Run individual numbers through a contractor — these are budget ranges, not quotes.
What’s the difference between hurricane glass and impact glass?
Functionally none — they’re marketing terms for the same product category. Both refer to laminated glass that has passed Florida’s TAS 201/202/203 testing. Some manufacturers prefer one term over the other for branding reasons.
Can I install impact windows myself?
In Florida, no — every impact opening installation requires a permit, an inspection, and (for HVHZ jurisdictions) compliance with the manufacturer’s published Florida Product Approval installation instructions. Self-installed openings will fail final inspection and won’t qualify for insurance discounts. The installation is what makes the product code-compliant; the product alone doesn’t.
Are hurricane shutters as good as impact windows?
For pure code compliance, yes — both are accepted methods of protecting openings. Operationally they’re very different (deployment time, daily benefits, long-term cost). For an active homeowner who plans to stay in the home long-term, impact products typically win the total-cost-of-ownership comparison. For a vacation property used only seasonally, shutters often make more sense.
When should I have my doors and windows inspected?
Annually, in May, before hurricane season starts. Off-season inspections give you time to fix issues without paying emergency rates. Mid-season inspections happen during the busiest service window — wait times are longer and prices are higher.
What if I get hit by a storm with non-impact openings?
After the storm, document everything before any cleanup. Boards-up over broken openings stop secondary water damage. File the insurance claim immediately. Contact a licensed door and window contractor for an emergency assessment — temporary repairs and code-compliant permanent replacements often happen in two phases.
When to Call JDM
JDM Sliding Doors handles the full hurricane prep cycle across Florida — from Miami-Dade and Broward in the south, through Palm Beach, Treasure Coast, Tampa Bay, and Orlando, up to the Panhandle:
- Pre-season inspections — full audit of every exterior opening, with prioritized upgrade recommendations
- Repair and reinforcement — fix what’s salvageable, reinforce what’s borderline, replace what’s failed
- Impact upgrades — sliding glass doors, French doors, entry doors, impact windows, all permitted and inspected
- Emergency service — same-day availability for pre-storm and post-storm repairs (capacity-permitting)
Contact us for a free on-site estimate — we’ll measure, document, and walk you through the right combination of repair and upgrade for your home and timeline.
Related Resources:
- Sliding Door Hurricane Protection — Specific upgrade options for sliding glass doors
- Impact Windows vs. Shutters: A Long-Term Investment — The 10-year cost comparison
- How to Install an Exterior Door — Step-by-step exterior door install with Florida code requirements
- The Ultimate Sliding Door Maintenance Checklist for Coastal Homes — Pre-season door maintenance
- The Ultimate Guide to Fixing Sliding Door and Window Leaks — Diagnose and fix water-intrusion paths
- Sliding Door Repair vs. Replacement: What Saves You More? — When repair stops making economic sense
- How Much Does It Cost to Replace a Sliding Glass Door? — Florida-specific replacement budgeting
- 6 Sliding Door Upgrades for Older Florida Homes — Upgrade priorities for pre-1990s homes
