Impact French Door Cost, Swing, and Glass Options

3 national cost guides frame the conversation. None of them price impact-rated units sold in South Florida. Fixr's French door cost guide (updated January 31, 2025) puts French door installation at $1,599 to $2,976 nationally. Fixr's average is $2,221, and those figures cover standard, non-impact doors. Bob Vila's French door cost guide (2023) is broader at $2,000 to $5,000 nationally. Bob Vila notes that upgrading to hurricane-proof French doors can start at around $3,000. HomeAdvisor's sliding glass door cost guide (updated June 17, 2026) lists hurricane-impact sliding glass doors separately at $2,000 to $3,000 nationally. That is useful as a reference point. Impact sliders and impact French doors often compete for the same patio opening. The takeaway: every published figure is a national, non-impact baseline. Impact glass adds cost layers that general guides do not capture. High-velocity hurricane zone (HVHZ) testing adds cost layers. Miami-Dade NOA approval adds cost layers. Multipoint locking hardware adds cost layers too.

Fixr's French door cost guide lists 7 cost factors for standard doors; impact-rated units in South Florida carry several more. Start with size. PGT's WinGuard Aluminum FD160 runs from 20 × 72 inches (single) up to 81½ × 96 inches (double), while the WinGuard Vinyl FD5555 tops out at 76 × 96 inches for a double unit, so a wide opening may limit your frame choice before price even enters the picture. Frame material is the next lever: the aluminum FD160 carries U-values of 0.69 to 0.71, while the solid cellular vinyl FD5555 drops to 0.30 to 0.33, a meaningful energy-efficiency gap that affects both utility bills and Florida Product Approval (FPA) compliance. Adding sidelites or a transom (the fixed glass panel above a door) expands the design but also changes the engineering, Miami-Dade NOA 24-1219.10 for PGT's FD-750 states that when doors are assembled with sidelites, the lower design pressure of the door or the sidelite controls the whole assembly. Finally, the FD5555 carries Miami-Dade NOA 23-0717.01, expiring January 23, 2029, which adds the documentation layer required for permits in Miami-Dade and Broward counties. See our deeper breakdown of hidden costs in impact door quotes before you compare bids.

Bob Vila's French door guide notes that exterior French doors typically swing out. Labor averages $900 to $1,400 for double outswing versus $800 to $1,200 for double inswing. That difference is tied to sill complexity and weatherstripping runs. Most impact-rated French doors on the South Florida market are outswing by design. PGT's FD160 and FD5555 are both outswing units. The FD450 Estate aluminum door is the PGT line that offers inswing configurations. It adds options like residential saddle and ADA (Americans with Disabilities Act) thresholds. It also offers 4½ × 4-inch hinges in solid brass or stainless steel. There is also an HVHZ (High-Velocity Hurricane Zone) consideration. Under Florida Building Code 2023 Section 2411.3.2.1, door assemblies in the HVHZ need not be tested for water infiltration in certain cases. Those cases include nonhabitable areas designed to accept water. They also include openings where the overhang ratio is 1 or more. The overhang ratio is how far the overhang projects divided by the height from the door sill to the bottom of the overhang. Outswing doors generally manage water runoff more easily. That is one reason they dominate pool and patio applications across Miami-Dade and Broward. Our HVHZ explainer covers the full testing requirements.

PGT defines laminated glass as 2 pieces of glass bonded with a strong clear interlayer. That interlayer makes the 2 pieces behave as a single unit. PGT defines laminated insulating glass as 3 panes. Two panes are bonded together for impact resistance. One additional pane adds insulation. That third pane pushes the vinyl FD5555's U-value down to 0.30 to 0.33. Choose it when energy efficiency is a priority alongside storm protection. The FD160 glass menu includes clear glass. It also includes bronze, gray, green, azure blue, Graylite II, and Solarcool Bronze tints. Obscure and white-interlayer privacy glass are available. So are EnergyShield, EnergyShield Max, and Solar Control Low-E2 coatings. The FD450 Estate adds obscure and rain glass. Those options suit courtyard and bathroom-adjacent openings where privacy matters more than the view. Tints affect solar heat gain, which is a key metric in South Florida's climate. Low-E (low-emissivity) coatings reflect infrared heat without darkening the glass. Choosing between tint and Low-E, or stacking both, affects both the quote and long-term energy savings. Our guide to impact door frame materials and cost explains how glass and frame interact on the total bill.

Labor is 1 of the 2 largest line items on any impact door project. The other is the unit itself. Bob Vila's guide puts double-door labor alone at $800 to $1,400 depending on swing direction. That is for standard doors. Impact units add rough-opening prep and sill flashing. Sill flashing is the waterproof membrane at the base of the opening. Impact units also add permit coordination and post-install inspection. Contractors who pull their own permits and use in-house crews consistently perform better on callbacks. SafeGuard's warranty callback rate sits under 3%. That is a direct outcome of the in-house crew model and 30+ years of South Florida experience behind every project. A callback on an impact door means a return visit and a potential permit re-inspection. It also means lost days of protection for your home. Verify any contractor's license at the Florida DBPR contractor lookup before signing anything. You can also review the full impact door installation process on this site. The French door installation specifics page shows what a professional scope of work looks like.

A realistic budget separates 3 distinct line items: the door unit cost, the installation labor, and the permit fee. Each of those lines varies independently. Our impact doors cost guide for Florida walks through how those lines interact across different door types. If you are also considering impact windows, bundling can reduce the per-unit permit cost and mobilization charge. The Florida Building Code sets the minimum performance standards. Your specific county, Miami-Dade, Broward, or Palm Beach, may have additional submittal requirements. Those requirements can add time to permitting. Use our HVHZ explainer to understand what your jurisdiction requires before you finalize a product choice. Finally, check whether your glass selection qualifies for any energy credits. Our Florida impact window rebates and tax credits guide covers current programs. Those programs sometimes extend to impact doors with qualifying Low-E glass.