Impact Door Installation in Miami, Step by Step
Putting an impact door into a Miami house is part carpentry, part masonry and part paperwork. Older homes in neighborhoods like Allapattah, Shenandoah and the Upper East Side often have openings that have settled, been patched or been resized over the years, and a door that is not set plumb, level and sealed will leak or bind no matter how well it was built. We take each installation from field measurement through product selection, permit, installation and final inspection, with one team responsible from the first visit to the last.
Details That Decide How the Door Performs
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Anchoring to the Wall You Have: Miami houses were built many ways over the decades: concrete block with a poured tie beam, older masonry with a wood buck lining the opening, and wood frame. Each takes different fasteners. The door's approval lists anchors, embedment and spacing for each kind of substrate, and our installers follow the one that matches your wall rather than one method everywhere.
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Outswing Doors Set to Seat Under Pressure: Many impact entry and French doors in South Florida swing outward so a storm presses them against their stops. That only works when the frame is square and the weatherstrip meets the panel evenly all the way around. With the hinges outside, we also confirm the pins cannot be pulled from the exterior and that the door clears the stoop, steps or railing.
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Hardware Adjusted Before We Leave: A heavy laminated panel will drag or refuse to latch if it is hung even slightly out of plumb. Before closing out, we adjust hinges or rollers, line up the multi-point lock with its keepers at the head and sill, check the sweep and weatherstrip, and show you how to lock the door, clean the track and care for the finish.
Our Installation Sequence for City of Miami Homes
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Field Measurement and Product Selection: We measure the rough opening, the finished floor on both sides and the space the door needs to swing, then select a door whose Miami-Dade NOA or Florida Product Approval covers that size and the design pressure at that spot on the house. You see the product, glass and finish in writing before anything is ordered.
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Permit Issued Before Work Begins: For homes inside city limits, the application goes to the City of Miami Building Department with the approval documents for each door. We answer plan review questions and set the installation date once the permit is issued and the doors have arrived, so your opening is not taken apart until everything needed to close it again is on hand.
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Installation Day and Final Inspection: The crew covers nearby floors, removes the old door and frame, prepares the opening, anchors and seals the new unit, and adjusts it until it closes and locks easily. We then schedule the inspections the city requires and handle any corrections. National Glass & Construction is licensed, insured and bonded and has installed doors and windows since 1986.
Frequently Asked Questions
Is there anything I should do before installation day?
A little preparation helps. Move furniture and rugs well back from the door, take down curtains, blinds and rods around it, and make sure we can reach the outside of the opening through a gate or side yard. Tell us ahead of time about anything attached to the old frame, such as a doorbell camera, a keypad or wiring, so it can be disconnected safely and planned for.
My patio is almost level with the floor inside. How do you keep rain out at the sill?
We often find this behind older Miami houses, and wind-driven summer rain tests it hard. Options include a door with a taller sill that sits up a small step, regrading or sloping the patio surface so water runs away from the threshold, or both. We look at the slope, any overhang and the drainage before choosing, then bed and seal the sill so water that does reach it stays outside.
What does the inspector check once the door is in?
Inspections focus on whether the installed door is the product named in the permit and was installed the way its approval requires. That generally means the labels on the unit, the type, size and spacing of anchors, the shims and the sealant at the perimeter. Depending on the job, an inspection may be needed while anchors are still visible. We schedule each one and fix anything flagged.
What happens if the old frame or the wall behind it turns out to be damaged?
Removing an old door sometimes reveals termite-eaten wood bucks, rusted reinforcing steel or concrete that crumbles at the edges, especially in houses that have lived through decades of humidity. We show you what we found, explain the repair and its cost, and fix the opening before the new door goes in. An impact door anchored into weak material would not hold the way its approval assumes.
My doorway isn't a standard size. Can it still get an impact door?
Usually. Impact doors are built to order, so many models can be made to an uncommon width or height as long as it stays within the sizes the approval covers. When an opening falls outside those limits, the choices are a different model, a sidelite or fixed panel to take up extra width, or adjusting the opening itself, which would be shown on the permit. We explain the trade-offs at the estimate.
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