Hurricane Impact Windows Cost Calculator

Impact windows typically run $800 to $1,500 per window installed, with a standard single-hung averaging about $1,000. A whole-house project of 10–20 windows commonly lands between $10,000 and $30,000+. The price is driven by how many windows you replace, the window style (a fixed picture window is cheapest; sliding patio and French doors are the most expensive), the frame material, and the floor level. Use the calculator above to price your exact project by style, material, floor, and add-ons.

Impact windows use heavy-duty reinforced frames and laminated glass — two panes bonded to a tough plastic interlayer, similar to a car windshield — engineered to survive missile-like debris flying at high speed in a hurricane. That construction, plus the required product approvals (like Miami-Dade NOA) and precise structural anchoring, makes them cost two to three times a standard single-pane window. You're paying for a tested storm-rated system, not just glass — which is also why professional installation and a permit are part of the price.

Style sets the base price per opening. In rough order of cost: a fixed picture window (~$900) is cheapest since it has no moving parts; single-hung (~$1,000) is the standard; a sliding window (~$1,100) and double-hung (~$1,200) are mid-range; a casement (~$1,400) cranks open and seals tightest; and large glass openings cost the most — a sliding patio door around $2,500 and impact French doors around $3,500, because they need the heaviest-duty reinforced frames. Most homes mix styles, so count each opening by its type in the calculator.

Aluminum is the strongest and most common standard frame for impact windows, and the most affordable — the baseline in our calculator. Vinyl costs about 10% more but is less thermally conductive, so it insulates better (lower energy bills) and resists salt corrosion, a plus in coastal areas. Wood-clad costs about 30% more and is chosen mainly for its premium interior aesthetics, pairing a wood interior with a protective exterior cladding. For most storm-protection buyers, aluminum or vinyl is the practical choice; wood-clad is an upgrade for looks.

Yes. In hurricane-prone zones, installing impact windows without a permit is illegal, and for good reason — an inspector must verify the windows are anchored correctly into the structure so they won't fail in a storm. A permit and inspection typically run around $400 and are a selectable add-on in the calculator. Reputable installers pull the permit as part of the job and schedule the inspection. Skipping it risks fines, insurance and warranty problems, and — most importantly — windows that could blow out during the storm they were meant to survive.

Often, yes. Insurers frequently offer wind-mitigation credits or discounts for certified impact windows, and in high-risk coastal states the savings can be substantial — sometimes hundreds of dollars a year. To claim it, you'll usually need a wind-mitigation inspection report documenting the certified openings, which you submit to your insurer. Combined with energy savings from Low-E glass, these credits meaningfully shorten the payback period. Ask your agent what your specific policy allows before and after installation so you can quantify the benefit.

Upper-floor installs cost more because crews need scaffolding, lifts, and extra safety measures, and the heavy impact units are harder to maneuver into place. In the calculator, a 2nd-floor install adds about 25% and a 3rd-floor-or-higher install adds about 40% to the base window cost. If your home is multi-story, price the upper-floor windows at the higher rate. Ground-floor openings are the baseline and the least expensive to install.

Several extras commonly appear on an impact-window quote: old-window disposal (about $50 per window to haul away the removed units), the permit and inspection (~$400), stucco or drywall repair around the new openings (about $150 per window, common when the opening is altered), interior trim work to finish the inside (about $100 per window), and a Low-E coating upgrade (about $75 per window) for UV protection and heat reduction. The calculator lets you toggle each of these so your estimate reflects the true installed cost, not just the bare windows.

They serve the same goal differently. Shutters are cheaper upfront and protect existing windows, but you have to deploy them before every storm, they block light when closed, and they don't add everyday benefits. Impact windows cost more but provide 24/7 protection with nothing to deploy, plus year-round perks: noise reduction, UV protection, energy savings, insurance credits, and improved security against break-ins. For a permanent home in a storm zone, many owners find impact windows worth the premium; shutters can be a budget-friendly interim option or a complement.

If flying debris strikes impact glass, the outer pane may crack and spiderweb, but the tough plastic interlayer holds the shards together and keeps the window intact and sealed — so wind and rain stay out and the opening isn't breached. That's the whole point of the laminated design: unlike ordinary glass, which shatters and lets the storm in, impact glass fails safely. A cracked pane should be replaced afterward, but during the event it continues doing its job of protecting the home's envelope.