Hurricane Impact Windows Cost in South Florida: A 2026 Guide

Real cost ranges per window, what drives the price up or down, and the financing math that makes a full-house impact install more reasonable than most homeowners assume.

Hurricane impact windows are the home improvement project South Florida homeowners think about for years before they pull the trigger. The reason is almost always the same: the number scares them more than it should.

Here is the honest breakdown of what hurricane impact windows actually cost in 2026, what drives the number up or down, and why the financing math usually works out friendlier than people expect.

The cost per window, plainly

For 2026 in South Florida, a typical impact-window install at our shop runs in a range, and the range matters more than any single number.

A standard 3-foot by 4-foot single-hung impact window with PGT WinGuard, factory-finished, with proper buck and flashing install, installed by a licensed Miami-Dade GC, typically lands in the lower to middle end of the impact-window price band that most South Florida contractors quote.

A larger 5-foot by 6-foot horizontal-slider impact window lands in the middle to upper end of that band.

A 6-foot by 8-foot impact sliding glass door (the big rear slider in most 1990s and 2000s South Florida homes) lands meaningfully higher, because it is glass on a different scale and the structural buck and threshold install is more involved.

A 9-foot or 12-foot impact pocket-slider door, the kind common on waterfront Las Olas or Pinecrest homes, is a project of its own with custom engineering.

We do not throw out random numbers because the price varies meaningfully by window count, opening size, frame material, and the existing wall condition. The estimate is fixed-price in writing after the in-home measure.

What pushes the price up

Six things move the price up on a real install.

Window size: bigger windows cost more per square foot, and the increase is not linear. A 5x6 window is more than 1.5 times the cost of a 3x4 because the structural requirements at the larger size are different.

Custom shapes: arched, transom, half-moon, and oversized fixed glass run higher. Anything that requires a custom mold or a non-standard size at the factory adds 20 to 40 percent.

Frame material: aluminum is the default and most affordable in coastal South Florida. Vinyl is slightly less expensive but is not always preferred for direct coastal exposure. Wood and aluminum-clad wood add meaningfully to the cost.

Frame finish: standard white is the baseline. Bronze and black add a small premium. Custom colors and woodgrain finishes can add 15 to 30 percent.

Glass options: standard laminated impact glass is the baseline. Adding Low-E coating, argon fill, frosted privacy glass, or specialty glass tints adds incrementally.

The wall condition: if we open the existing window and find rotten buck, water damage, or stucco that needs to be cut back, the repair is a separate line item. We bid it transparently when we see it.

What brings the price down

Volume: a full-house install with 12 to 18 windows is meaningfully cheaper per opening than a 2-window install. The crew mobilization, the permit, the dumpster, and the delivery are mostly fixed costs that spread across more windows.

Standard sizes: if your openings are close to standard window sizes, the manufacturer can pull stock or near-stock product and skip custom fabrication. Custom shapes always cost more.

Off-season install: hurricane season pricing is a real thing. November through April installs tend to come in at slightly lower mobilization costs because the demand is lower.

Combo projects: bundling impact windows with a roof replacement or a bath remodel into one contract gives you a single dumpster, a single permit submission window, and a coordinated schedule. The savings on the combo versus separate projects can be 5 to 12 percent.

The financing math

This is where most South Florida homeowners are surprised. Trust Construction works with financing partners including Service Finance and Renew Financial. For qualified homeowners, programs are available with zero down, zero interest, and no payments for 12 to 18 months.

What this means in practice: a typical full-house impact-window project that is intimidating as a single check becomes manageable as a monthly payment that often runs less than what the homeowner currently pays for their cable and streaming subscriptions combined.

Pair that with the wind-mitigation insurance credit (which kicks in immediately after install) and the energy savings (10 to 20 percent on summer cooling for most South Florida homes), and the impact-window project starts paying for itself before the first loan payment is even due.

This is not a sales pitch. It is just the math, which works.

The hidden cost of not doing it

Standard non-impact windows have a 10 to 15 year functional lifespan in South Florida. After that, the seals fail, the operating hardware corrodes, and the energy efficiency drops to near-zero. If you are in a 1995 to 2008 house with original aluminum windows, you are paying the cost of inefficient windows every month on your electric bill whether you replace them or not.

You are also paying it in the form of a higher insurance premium, because the wind-mitigation credit you would get with impact windows is sitting on the table.

Over a 10-year period, the cost of not having impact windows in a typical South Florida home (higher electric bills plus higher insurance premiums plus eventual standard-window replacement at the end of life) often exceeds the cost of just doing the impact install once and being done with it.

How we quote

Free in-home measure. We count every window, measure every opening, and walk through frame, glass, and color options with you. Itemized quote by opening so you see exactly what each window costs. Fixed price in writing. Miami-Dade permit included. Install starts 4 to 8 weeks after order, depending on product line and customization.

No surprise change orders, no "the install is more involved than we thought" emails halfway through, no fine print.

If you have been putting off the impact-window conversation because the number scared you, the actual number on your house might surprise you. We are happy to walk you through it. No pressure, no theater, just the real math.