Impact Windows & Doors in Miami
Impact-resistant glazing handled by a licensed general contractor — NOA verified, HVHZ code compliant, permit pulled and inspection closed as part of your project. Free written quote.
In Miami-Dade, impact windows and doors are a code decision before they are a product decision. The county sits inside the High-Velocity Hurricane Zone, where the Florida Building Code requires impact-resistant glazing or opening protection across a home's exterior envelope, and every unit has to carry its own county product approval.
Gaven Constructions handles impact windows and doors in Miami as part of a full remodel, addition, or new-construction project. We pull the permit, verify each product approval under our general contractor license, and close the inspection. We are not a window-only sales showroom. We are the licensed Miami general contractor that carries the whole project, with the fenestration as one coordinated trade inside it.
That distinction matters more than most homeowners expect, because in this market the permit and the product approval, not the sales pitch, decide what passes inspection.
Do impact windows in Miami need a permit and a Miami-Dade NOA?
In Miami-Dade's High-Velocity Hurricane Zone, the Florida Building Code requires impact-resistant glazing or opening protection across a home's exterior envelope, and the work requires a permit. Every impact window and door must carry a current Miami-Dade Notice of Acceptance (NOA), a product approval whose number must match the unit installed and still be valid at inspection. A licensed general contractor pulls the permit, verifies each NOA against the approved product, and closes the inspection under one license. That is what separates a code-compliant install from one that stalls at final.
What we take on, and what we don't
Gaven installs impact windows and doors as part of a full remodel, a home addition, or new construction, where the fenestration is one of several permitted trades we coordinate. That is the scope we are built for: the permit, the NOA verification, the structural opening work, and the inspection all sit under one general contractor license.
We do not take on window-only or door-only single visits with no other project scope. If you want a straight swap of a few units and nothing else, a dedicated impact-window company is the right call, and we will say so on the phone before anyone drives out. When the glazing is part of a larger job, coordinating it under the project permit is exactly what a general contractor is for.
Why the code, not the product, drives an impact-glazing project in Miami
Most of Miami-Dade and Broward falls inside the windborne debris region, and the Florida Building Code, 8th Edition (2023), requires that exterior openings in that region resist windborne debris, either with impact-rated glazing or with approved opening protection. That requirement is what makes impact windows and doors a permitted scope rather than a cosmetic upgrade. Every approved assembly is listed in Florida's product-approval system, and in the HVHZ it also carries a county approval on top of it.
The product approval is the part homeowners underestimate. In Miami-Dade, an impact window or door has to carry a Miami-Dade Notice of Acceptance, and the NOA number on the drawings has to match the product installed and still be valid on the day of inspection. An approval that has lapsed, or a unit that does not match its listed NOA, fails at final. Tracking that is routine for a licensed general contractor and easy to miss for anyone treating the window as a retail purchase.
Cost follows the same logic. What moves the price of impact windows and doors in Miami is opening size, frame material, glass makeup (laminated impact glass is commonly specified at 5/16 inch or 7/16 inch depending on the design pressure the opening has to meet), the specific approved product, and whether the structural opening has to change. Replacing like-for-like in an existing masonry opening is one scope. Enlarging an opening, changing a header, or rebuilding a buck is another, and that structural work is where the general contractor's role stops being optional.
There is a resilience reason underneath the code as well. Keeping the building envelope intact during a design-wind event limits the internal pressurization that can lift a roof or blow out a wall, which is why opening protection is treated as a structural measure, not a comfort feature. Impact windows and doors are the version of that protection that stays in place year-round, with no shutters to deploy.
When impact windows and doors belong inside a larger project
Impact glazing rarely arrives on its own. It shows up when a homeowner is already opening walls.
Whole-home remodel
In a whole-home remodel, replacing aging single-pane units with impact-rated ones is often the moment the envelope is brought to current code.
Whole-home remodel →Home addition
In a home addition, every new opening is impact-rated from the start because it is new construction under the permit.
Home addition →New construction
In ground-up new construction, the fenestration schedule is drawn, approved, and inspected as part of the building permit.
New construction →Sequencing all of that under one general contractor is the point. The window trade, the structural opening work, the stucco and waterproofing at the perimeter, and the inspection are coordinated on one schedule and one permit, instead of a homeowner trying to align a window vendor with the rest of a live jobsite.
How Gaven handles impact windows and doors on a project
Permit and scope
We confirm which openings the code requires be protected, size the scope, and pull the permit under our license.
NOA verification
We match every specified product to a current Miami-Dade NOA and confirm the approval covers the exact configuration and design pressure for each opening.
Structural opening prep
Where an opening changes, we handle the header, buck, and framing so the unit lands in a sound, code-correct rough opening.
Coordinated installation
The units are set, anchored, and flashed to the approval's requirements, with perimeter waterproofing tied into the surrounding wall assembly.
Inspection close-out
We schedule and pass the required inspections and close the permit, so the work is on the public record for resale and insurance.
Impact window and door work in Miami-Dade runs on the Florida Building Code, 8th Edition, the county's product-control NOA system, and a permit that closes with an inspection. Gaven Constructions is a Florida Certified General Contractor, license GCG1524886, verifiable at the state licensing board. Across 500+ projects since 2015, with 37+ BuildZoom-verified permits on the public record, pulling permits and closing inspections under one license is the routine work of the firm, not an exception.
The homeowner never coordinates with the building department directly. The general contractor carries the permit from application to close-out, which on impact-glazing scope means the NOA verification and the inspection are one accountable line, not a handoff between a window vendor and whoever pulls the permit.
Impact windows and doors questions
Do impact windows and doors need a permit in Miami-Dade?+
What is a Miami-Dade NOA, and why must its number match the exact window installed?+
Does Gaven install windows on their own, or only within a project?+
Impact glazing versus hurricane shutters: which satisfies HVHZ opening-protection code?+
5/16 inch versus 7/16 inch laminated impact glass: what determines which my opening needs?+
How long does impact window and door work take inside a remodel?+
Can impact windows be added during a kitchen, whole-home remodel, or addition?+
What drives the cost of impact windows and doors in Miami?+
Carried whole, under one license.
If impact windows and doors are part of a remodel, addition, or new build, Gaven Constructions carries the whole job under one Florida Certified General Contractor license, GCG1524886, from NOA verification to the closed inspection.