Why door protection matters as much as window protection
Hurricane storm damage in Florida homes follows a predictable pattern: the moment a single opening fails, internal pressure spikes and the structure is at risk. A failed door is functionally identical to a failed window in that moment. That's why the Florida Building Code treats doors as opening protection, not as a separate category — every exterior opening in the wind-borne debris region has to be either impact-rated or shutter-protected.
Doors are also where Florida homes lose the most water during a storm. Wind-driven rain at 50+ mph finds every gap in a weather seal. A door rated for impact but not engineered for water management can leave a homeowner with intact glass and a soaked foyer. Real impact doors are tested for water infiltration alongside impact and pressure.
What gets tested in a Florida impact door system
- Large missile impact — a 9 lb 2x4 fired at the door's weak points
- Cyclic pressure — thousands of pressure swings simulating a storm
- Water infiltration — wind-driven rain at specified pressures
- Air infiltration — sealing performance at design pressure
- Forced entry resistance — security baseline beyond storm tests
All five tests are part of the Florida Product Approval or Miami-Dade NOA listing. When your building department reviews the permit, they're verifying the listed configuration matches what you're installing. For the code-compliance background, see our Florida Building Code & impact windows guide — the same rules govern doors.
Looking at a specific patio or front door? Tell us about the opening — we'll explain what's actually realistic.
Request an estimateThree categories of impact doors
Entry doors
Single, double, or with sidelights and transoms. Fiberglass and steel slabs dominate the impact entry door market — both can be specified with laminated impact glass inserts in decorative patterns. For a deeper look at front-door specifics, see our entry doors page.
Sliding patio doors
Two-, three-, and four-panel impact-rated sliders for lanais, patios, and pool decks. Frame strength and roller engineering matter as much as the glass because these doors are heavy. We cover impact sliders in detail on the sliding glass doors page.
French / swinging patio doors
Outswing or inswing impact-rated French doors with multi-point locks. A strong fit for older Florida homes with narrower openings where a slider isn't proportionate, and for homeowners who prefer the look of swinging doors over sliders.
Frame, threshold, and hardware quality
Two impact doors with the same approval listing can behave very differently after five years in Florida sun and salt air. The difference comes from frame material, threshold construction, hinge and lock hardware, and weather-strip quality. We walk through these details during the consultation rather than reducing the conversation to "impact-rated yes or no." Coastal homes inside Flagler County or beachside Volusia get particular attention paid to corrosion resistance.
Real Central Florida door projects
From our gallery of completed window and door installations on Central Florida homes.
Permits and installation expectations
Every Florida jurisdiction permits door replacement. The permit verifies product approval, anchoring schedule, wall-type compatibility, and a final inspection. A correctly installed impact door is anchored according to the approval, sealed at the threshold, weather-stripped continuously around the frame, and integrated with the existing waterproofing details. Installation typically takes a half day to a day per door depending on demo conditions and threshold work.
Honest cost discussion
Impact door pricing depends on size, configuration, glass options, frame material, color, hardware, threshold conditions, and wall type. A single 3-foot fiberglass entry door is a very different project from a 12-foot four-panel impact slider. We confirm pricing during the in-home consultation in writing. Our cost guide (which also covers doors as part of larger projects) walks through what actually drives the number.
Plan a real door project. We'll measure the opening, walk through options, and quote it honestly.
Request an estimateImpact doors in Florida: frequently asked questions
- Like impact windows, an impact-rated door is a tested system: slab (or panel), frame, glazing if any, hardware, threshold, and anchoring all evaluated together. It must pass the Florida Building Code's large missile impact test and cyclic pressure test for the wind-borne debris region. The Florida Product Approval or Miami-Dade NOA spells out the specific configurations that have been tested — door size, glass option, anchoring schedule, wall type — and your installer must follow that schedule.
- Inside the wind-borne debris region, every exterior opening — including doors — must use impact-rated products or code-approved shutter protection when replaced. Outside the region, impact-rated doors are optional. Many homeowners still choose impact-rated patio and entry doors for security and peace of mind regardless of code requirements.
- Modern impact doors are tested to a specific water infiltration rating in addition to the impact and pressure tests. The threshold, sweep, weather-stripping, and frame work as a system to keep wind-driven rain on the outside. Older doors — and some lower-tier replacements — often fail at the threshold long before they fail at the panel, which is why product selection and installer experience matter as much as the impact rating itself.
- Yes, meaningfully. The slab is reinforced, the frame is stronger, the hardware is heavier, and the glass (if any) is laminated. Kick-in resistance is far better than a typical hollow-core or builder-grade exterior door. Combined with multi-point locks, impact doors are one of the strongest passive security upgrades available to a Florida home.
- Visually, modern impact sliding glass doors look very similar to non-impact sliders — same panel proportions, similar frame profiles. The differences live in the laminated glass thickness, reinforced frame, heavier hardware, and the rollers and track designed to carry the extra weight. Aesthetically, most homeowners can't tell at a glance. Operationally, a quality impact slider should glide as easily as a non-impact one.
- Yes. Exterior door replacement is a permitted activity in every Florida jurisdiction. The permit verifies that the product has a current Florida Product Approval, that the anchoring matches the wall type, and that the final installation passes inspection. We handle the permit, the product approval submission, and the inspector visit.