Every June 1st, South Florida homeowners shift into a familiar rhythm: stocking up on water, checking generator fuel, and glancing nervously at the National Hurricane Center’s tropical outlook. But there’s one piece of preparation that consistently gets pushed to the back burner until it’s too late, and it happens to be the most important line of defense your home has against a Category 3 storm: your windows.
Hurricane season window preparation in South Florida isn’t something you can handle in a weekend once a named storm enters the Caribbean. By the time the cone of uncertainty includes Broward or Miami-Dade, permit offices are slammed, installers are booked solid for months, and manufacturers have run out of inventory on the most popular sizes. The homeowners who weather storms confidently are the ones who started preparing in May, not the ones racing to Home Depot for plywood the morning Publix runs out of bread.
This guide walks you through exactly what to inspect, what to look for in aging windows, and the realistic timeline you need to follow if you want impact-rated protection installed before peak season hits in August and September. Whether your home still has original 1990s single-pane sliders or you’re not sure whether your existing windows are truly impact-rated, this is the checklist to work through right now.
Why Waiting Until a Storm Is Named Is Already Too Late
South Florida contractors hear the same panicked phone call every August: “There’s a storm in the Atlantic, can you get impact windows on my house this week?” The honest answer is almost always no, and understanding the timeline is the first step in proper hurricane prep South Florida homeowners need to internalize.
The Realistic Installation Timeline
From the day you sign a contract for impact windows in Broward or Miami-Dade County, here’s what actually has to happen before installation day:
- Field measurements and engineering: 1 to 2 weeks for precise opening measurements and product selection based on Design Pressure (DP) requirements for your specific elevation and exposure
- Product manufacturing: 4 to 10 weeks depending on the product line, custom sizing, and current demand
- Permit application and approval: 2 to 6 weeks in Broward, often longer in Miami-Dade during HVHZ peak season
- Installation: 2 to 5 days for a typical full-home job
- Final inspection: 1 to 3 weeks after installation to schedule and pass
Total realistic timeline: 10 to 20 weeks from signing to a fully permitted, inspected installation. If you sign a contract in late May, you’re looking at a finish date somewhere between August and October. If you wait until July, you may not be protected until well after the season’s most active months.
Why ES Windows Helps With South Florida Lead Times
One reason A Plus Impact Windows & Doors primarily installs ES Windows is straightforward logistics. ES Windows is manufactured in Medley, Florida, which means product travels miles, not states, to reach your home. During peak season when national brands are quoting 12-week production windows, locally manufactured ES Windows product lines often ship significantly faster, all while carrying full Miami-Dade Notice of Acceptance (NOA) approvals and HVHZ ratings.
The Pre-Season Window Inspection Checklist
Before you can decide whether to repair, retrofit, or replace, you need to honestly assess what you currently have. Walk your home with this checklist in hand, ideally in May before the first tropical wave gets your attention.
Step 1: Confirm Whether Your Windows Are Actually Impact-Rated
This sounds obvious, but plenty of South Florida homeowners assume they have impact windows because the previous owner said so or because the glass looks thick. Real impact windows have:
- A permanent etched label in the corner of the glass listing the manufacturer, ASTM E1996 compliance, and Large Missile Impact (LMI) rating
- A Florida Product Approval number or Miami-Dade NOA number on the frame label
- Laminated glass with a visible interlayer (PVB or SGP) when you look at the edge
- A Design Pressure rating sticker indicating positive and negative pressure values
If you can’t find any of this documentation, assume the windows are not impact-rated and plan accordingly.
Step 2: Inspect Frames and Seals
Even genuine impact windows degrade over time, especially in coastal Broward and Miami-Dade zip codes where salt air accelerates corrosion. Look for:
- White powdery corrosion on aluminum frames (oxidation)
- Cracked or hardened perimeter caulking
- Gaps between the frame and stucco where flashing should be sealed
- Rust streaks at fastener locations
- Drag, scrape, or difficulty operating sashes
- Failed or fogged sealed insulating glass units
Step 3: Check the Glass Itself
Inspect every pane in daylight and again at night with a flashlight held against the surface. You’re looking for chips along the edges, delamination of the interlayer (a milky cloudy haze creeping in from the perimeter), and any cracks no matter how small. A chip on the edge of laminated glass becomes a structural failure point under hurricane-force pressure.
Step 4: Test Hardware and Locks
Every operable window needs functioning locks. Multi-point locking systems on impact sliders and casements are critical because they distribute pressure load across the entire frame. A slider with one broken lock at the meeting rail is no longer rated to its original Design Pressure.
Signs Your Windows Have Reached the End of Their Service Life
Even quality impact windows installed 20 years ago may no longer meet current Florida Building Code requirements. Here’s how to tell if it’s time to prepare windows for hurricane season by replacing rather than repairing.
Age and Code Compliance
The Florida Building Code has been updated multiple times since impact windows became common in South Florida after Hurricane Andrew. Windows installed before the 2010 code update may have lower Design Pressure ratings than what your home requires today, particularly if you’re within a mile of the coast in Broward or anywhere in Miami-Dade’s HVHZ.
| Window Age | Typical Concern | Recommended Action |
|---|---|---|
| Pre-1994 (pre-Andrew code) | Almost certainly not impact-rated | Replace immediately |
| 1994 to 2001 | May meet older code but not current HVHZ standards | Inspect and evaluate replacement |
| 2002 to 2010 | Likely impact-rated, but lower DP ratings | Verify NOA, check seals and frames |
| 2010 to present | Should meet current code if properly installed | Annual inspection and maintenance |
The Insurance Discount Factor
If your windows are old enough to need replacement, you’re also leaving money on the table every year. Properly permitted impact windows qualify for wind mitigation credits on your Florida homeowners insurance via the OIR-B1-1802 form. For many Broward and Miami-Dade homeowners, those annual savings recover a meaningful portion of the installation cost over the life of the windows.
Building Your Hurricane Season Florida Checklist
Beyond the windows themselves, a complete hurricane season Florida checklist should address everything that connects your openings to the structure of your home.
Document Everything Now
- Photograph every window and door, inside and out
- Locate and file your existing product approval documents and permits
- Take a video walkthrough of your home for insurance purposes
- Save your current wind mitigation inspection report
Schedule a Professional Assessment in May or Early June
A qualified impact window contractor can tell you in a single visit whether your existing windows still meet code, what your DP requirements are for your specific address, and what realistic options look like for your budget. Free estimates are exactly what they sound like, and there’s no reason to wait until a storm is forming to get one.
Don’t Forget Doors and Garage Openings
The largest single opening in most South Florida homes is the garage door, followed by sliding glass doors to the patio. A home with impact windows but a non-rated garage door or front entry door isn’t fully protected. When a garage door fails during a hurricane, internal pressure can lift the roof off the structure. Any complete hurricane prep South Florida plan addresses every opening, not just the windows.
Why ES Windows Is Our Recommendation for South Florida Homes
After two decades of installing impact products across Broward and Miami-Dade, A Plus Impact Windows & Doors primarily specifies ES Windows for residential projects. The reasoning comes down to four practical factors:
- Local manufacturing in Medley, FL: Shorter lead times during peak hurricane season when timing matters most
- Full Miami-Dade NOA and Broward product approvals: Every series, from Series 100 single-hungs to Series 300 casements to impact sliding glass doors, carries current HVHZ approvals
- Aluminum frames engineered for coastal Florida: Built specifically for salt air and high-humidity conditions rather than adapted from northern climate designs
- Competitive pricing: Strong value compared to national brands without sacrificing certifications or warranty
For homeowners comparing options, the ES Windows product line covers virtually every opening configuration you’ll find in a South Florida home: single-hung, horizontal roller, casement, fixed picture, awning, sliding glass doors, and impact-rated entry door systems.
Frequently Asked Questions
When should I start hurricane season window preparation in South Florida?
Begin inspections in April or May at the latest. If you discover you need replacement windows, signing a contract by early June gives you the best chance of being fully installed and inspected before peak hurricane activity in August and September. Waiting until July typically pushes installation into October or later.
How can I tell if my existing windows are truly impact-rated?
Look for a permanent etched label in the corner of the glass referencing ASTM E1996, plus a Florida Product Approval number or Miami-Dade NOA number on the frame. If you can’t find either, the windows almost certainly are not impact-rated regardless of how thick the glass appears.
Do I still need to install shutters if I have impact windows?
No. Properly installed, permitted impact windows are a standalone code-compliant solution and meet HVHZ requirements in Miami-Dade and Broward. That’s one of the main advantages over shutters, which require active deployment before every storm.How long does it take to install impact windows on a whole house?
The physical installation typically takes 2 to 5 days depending on the number of openings. However, the full timeline from contract signing through permits, manufacturing, installation, and final inspection generally runs 10 to 20 weeks in Broward and Miami-Dade counties.
Can I get impact windows installed during hurricane season?
Yes, contractors install year-round. The challenge is that lead times stretch during summer months as demand peaks, permit offices slow down, and manufacturers run low on common sizes. Starting the process in spring is always preferable to mid-season.
Will new impact windows lower my homeowners insurance premium?
In most cases, yes. Permitted impact windows qualify for wind mitigation credits documented on the OIR-B1-1802 form. The exact savings depend on your carrier, your home’s other features, and your location, but Broward and Miami-Dade homeowners frequently see meaningful annual premium reductions.
What’s the difference between ES Windows and other brands available in South Florida?
ES Windows is manufactured locally in Medley, Florida, which generally results in faster lead times during peak demand. All ES Windows residential series carry current Miami-Dade NOAs and HVHZ approvals, and the aluminum frames are engineered specifically for South Florida’s coastal climate. Pricing tends to be competitive with national brands while delivering equivalent or better performance.
Get Your Free Pre-Season Inspection Now
The single best decision you can make this spring is to stop guessing about whether your windows are ready for hurricane season. A Plus Impact Windows & Doors offers free estimates throughout Broward and Miami-Dade counties, and a 30-minute on-site assessment will tell you exactly where you stand, what your options look like, and what a realistic timeline means for your specific home. Visit APIWD.com or call our team today to schedule your free pre-season evaluation, and head into June 1st knowing your home is protected by code-compliant, locally manufactured, fully permitted impact windows.