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Impact doors are important in Miami because the county sits in Florida’s High-Velocity Hurricane Zone, where wind-borne debris can break an ordinary glass door and let a storm into the house. They also make forced entry harder, cut heat gain and outside noise, and can count toward an insurance credit.
This guide covers what impact doors do and do not do, the main types, how to choose them and how to care for them in salt air. For the full picture across the region, see the full South Florida impact door guide.
Benefits of Impact Doors in Miami
The benefits of impact doors in Miami go beyond hurricane season. A good impact door protects the opening all year, helps the house stay cool and quiet, and can lower what you pay for windstorm coverage.
Enhanced Hurricane Protection
Miami-Dade sits in Florida’s High-Velocity Hurricane Zone, the strictest wind zone in the state. Based on the 1991 to 2020 record, an average Atlantic season brings 14 named storms, 7 hurricanes and 3 major hurricanes, according to the National Hurricane Center.
In a storm, flying debris is the main threat to doors. Impact doors use laminated glass, where layers of glass are bonded to a tough interlayer, so a cracked pane stays in the frame instead of falling out. The frame, hinges, locks and threshold are reinforced to match.
That matters because a broken door lets wind and rain inside, where pressure pushes on the roof and walls. Products for Miami-Dade pass tests such as a large missile impact, a 9-pound 2×4 fired at 50 feet per second. See how hurricane impact doors are tested and rated.
Because an impact door is always in place, there are no panels to carry and fasten when a storm is coming. Browse the impact doors we install in Miami homes to see the styles available.
Increased Home Security
Front and back doors are common entry points for break-ins. Laminated impact glass is much harder to get through than ordinary door glass, because the interlayer holds the pane together even after it cracks.
Impact doors also come with reinforced frames and, on many models, multi-point locks that latch at several points along the door. No door is burglar-proof, so keep using good locks and lighting, but an impact door slows an intruder down.
Energy Efficiency
Miami’s heat and sun make air conditioning the biggest energy load in many homes. Old doors that leak let cool air out and hot air in, which keeps the system running longer.
Impact doors seal tighter than most older doors, and many can be ordered with Low-E glass that cuts heat gain from the sun. The interlayer also filters much of the UV light that fades floors and furniture.
How efficient a door is depends on the glass package and frame you choose. Compare the energy figures on each product’s NFRC label rather than relying on the word “impact”.
Noise reduction
Many Miami homes sit near busy roads, highways or flight paths. Laminated glass and tight seals dampen outside sound, so rooms behind an impact door are usually quieter than behind a standard glass door.
Sound also comes in through walls, vents and gaps, so results vary from house to house. If noise is your main reason to upgrade, ask about each product’s sound ratings before you choose.
Possible Insurance Savings
Florida law requires insurers to offer credits for opening protection. Section 627.0629 of the Florida Statutes ties these credits to wind mitigation features, which a licensed inspector records on a wind mitigation form.
The credit is based on how well every opening is protected, so one weak door or an old garage door can hold the rating down. See these home upgrades that can lower insurance rates before you plan the order of your project.
What Impact Doors Do Not Do
Impact doors are tested against wind pressure, debris and wind-driven rain. They do not stop flood water or storm surge, so a home in a flood zone needs a separate flood plan and flood insurance.
An impact pane that has taken a hit may crack while still holding. It then needs replacing before the next storm. And a door only performs as tested when it is the approved product, installed to its approval and kept closed and locked.
Types of Impact Doors in Miami
There are impact versions of nearly every exterior door, from the front entry to the patio and garage. Most come in several frame colors, finishes and glass tints, so you can protect the house without changing its style.
Impact Front Entry Doors
Entry doors are the most used door in the house and often the first one a visitor sees. Impact entry doors can be solid, have glass inserts or sidelites, and come in materials such as fiberglass, steel and aluminum.
For a wide, modern entrance, impact pivot doors for statement entrances turn on a pivot point instead of side hinges. Every part, including the glass and hardware, must match the door’s approval.
Sliding Glass Impact Doors
Sliding glass impact doors open horizontally on a track and suit patios and pool decks. Multi-panel layouts give wide views and let natural light into the house, which can cut the need for daytime lights.
Large sliders are also the biggest glass openings on many Miami homes, so they are often the first door owners upgrade. See our sliding impact patio doors for layouts and finishes.
French Impact Doors
French impact doors swing open on hinges and give a classic, wide entrance to a patio or garden. Large glass panels and styled grids add curb appeal while letting light in.
Look for a strong locking system that secures both panels. Our French impact doors with swing panels come in in-swing and out-swing versions.
Impact Garage Doors
The garage door is usually the largest opening on a house and one of the weakest in a storm. If it fails, wind can rush into the garage and push on the roof from inside.
Impact-rated garage doors built for hurricanes are reinforced for wind and debris. To compare every type side by side, see which type of impact door fits your home.
Choosing the Right Impact Doors in Miami
The right impact door depends on the opening, how you use it and what you want most: storm protection, light, security or style. A professional measurement comes first, because each door must be approved for its size.
- Durability and material quality: frame material and finish matter near the coast, where salt air is hard on metal and hardware. Ask what each option needs to stay in good shape.
- Design and style options: frame colors, glass tints and grid styles let you keep or refresh your home’s look. If you live in an HOA or condo, check its approved styles first.
- Energy efficiency ratings: glass package and frame affect how much heat the door lets in. Compare the NFRC label figures for the exact models you are quoted.
Certification and Compliance with Building Codes
Miami-Dade is in the High-Velocity Hurricane Zone, so every exterior door needs a current Miami-Dade Notice of Acceptance (NOA) or a Florida Product Approval valid in that zone, plus a permit and an inspection. The Miami-Dade permit and NOA rules for doors are covered in their own guide.
Brand matters because each product line carries its own approvals and limits. USA Home Improvement exclusively sells ES Windows, and you can get the Florida Product Approval number for each door on request.
Price depends on door type, size, glass and installation work. Compare written quotes for the same approved products, and use our breakdown of impact door costs in Florida to see what drives the price.
Installation matters as much as the product, because a door only performs as tested when it is anchored and sealed the way its approval shows. Use this checklist to choose a licensed impact door company.
Maintenance and Care Tips for Impact Doors in Miami
Impact doors need simple, regular care to keep sealing and locking well. Salt air, sand and summer rain are hard on tracks, seals and hardware, especially in homes near the water.
Regular Cleaning and Inspection of Impact Doors
Clean the glass and frame with mild soap, water and a soft cloth. Skip abrasive pads and harsh solvents, which can scratch the glass and damage frame finishes and seals.
Near the coast, rinse frames and hardware with fresh water from time to time to remove salt. Vacuum sand out of sliding door tracks and keep the weep holes in the sill clear so water can drain. While you clean, check the seals for gaps or cracks.
Lubrication of Hinges and Moving Parts
Hinges, rollers and locks need occasional lubrication to keep moving freely. Squeaking, grinding or a stiff lock are signs the hardware needs attention.
Use the lubricant the manufacturer recommends and wipe off the excess so it does not collect sand. If a multi-point lock does not engage smoothly, have the door adjusted rather than forcing the handle.
Avoiding Excessive Force and Misuse
Impact doors are built for storms, but daily misuse still wears them out. Avoid slamming swing doors, and do not force a slider that sticks; clean the track first and call for an adjustment if it still drags.
Do not drill into the frame or swap locks and handles without checking with the installer. The door is approved as one assembly, and unapproved changes can take it outside its approval.
Addressing Minor Issues Promptly
Fix small problems early, before they turn into leaks. Worn weatherstripping, a loose lock or a slider that no longer closes tight are simple repairs when caught soon.
A crack in the glass is different. The interlayer sits inside the laminated glass, not as a film on the surface, so a cracked pane cannot be patched. Have a professional replace it with glass that matches the door’s approval.
Get Impact Doors From USAHI
For most Miami homes, impact doors are one of the most useful upgrades that make a home hurricane resilient. Our team installs impact doors across the area; see our impact window and door service in Miami.
You do not have to pay all at once. Financing, if available, comes through independent third-party providers that may offer qualified homeowners $0 down options, 0% interest plans and loans up to $100,000. Compare our financing plans for impact door projects, or call (877) 554-6373 for a free consultation.
USA Home Improvement is licensed (CGC1526707) and insured and has served Florida homeowners for more than 15 years.