Do Impact Windows Lower Homeowners Insurance in Florida?

Florida Statute §627.0629 requires every property insurer in the state to offer premium discounts for verified wind mitigation features. Impact-rated opening protection is one of those features. This is not a voluntary courtesy that insurers can choose to skip. It is a legal mandate. It covers both private carriers and Citizens Property Insurance Corporation. Citizens applies up to an 88% maximum total wind mitigation discount across all rated categories combined. That makes the stakes very high for homeowners who qualify. The discount is calculated from a standardized inspection — not from your receipts or your contractor's invoice. An inspector must physically verify that every glazed opening meets the required opening-protection standard. That includes windows, glass doors, and skylights. Without that documentation, your insurer has no legal basis to reduce your premium. You will keep paying the full rate even if your windows are brand new.

The discount is not automatic. It requires a wind mitigation inspection documented on the OIR-B1-1802 Uniform Mitigation Verification Inspection Form. Your insurer uses this single form to calculate your new premium. A licensed inspector visits your home and measures every opening. The inspector checks the product approval numbers on each window and door. Then the inspector assigns an opening-protection rating. The 1802 form has 5-year validity. You must schedule a re-inspection every 5 years to keep the credit active. Missing that deadline is a common and expensive oversight. Insurers quietly remove the discount at renewal without notifying the homeowner in advance. Our detailed breakdown of the OIR-B1-1802 form explained walks through every line of the document. You will know exactly what the inspector is looking for. Once the form is complete, submit it directly to your insurer. The credit applies at your next policy renewal.

Opening protection credit is all-or-nothing under the Florida wind mitigation rating system. If any glazed opening in the home is left unprotected, the home receives an 'X' rating. That includes glazed side-entry doors and skylights. When the home gets an 'X' rating, the opening-protection credit drops to zero. This is the most expensive mistake homeowners make. A homeowner who replaces 18 windows but leaves 1 original single-pane sidelight gets zero opening-protection credit. That is the same credit as a homeowner who replaced nothing: zero dollars. Skylights are the other common gotcha. Many South Florida homes have a single fixed skylight that homeowners forget to address. That 1 unprotected skylight can wipe out thousands of dollars in premium savings. Before you finalize any scope of work, use our wind mitigation inspection guide. Inventory every glazed opening in your home and confirm it is included in the contract.

Consider a 3-bedroom, 2-bathroom Broward County home with 19 total glazed openings. Those openings include 15 windows, 2 sliding glass doors, 1 glazed side-entry door, and 1 skylight. Before installation, 10 of those 19 openings have impact-rated protection. The home's OIR-B1-1802 form shows an 'X' opening-protection rating. That means the credit is $0, regardless of the 10 protected openings. The annual premium is $6,200. After a full impact windows installation covering all 19 openings, the inspector assigns a full opening-protection rating. The insurer applies a 35% wind mitigation credit on the wind portion of the premium. Wind accounts for about 60% of the total premium on this $6,200 policy. That credit is roughly $1,302 per year. A full South Florida home typically costs $18,000 to $22,000 installed. The insurance savings alone produce a payback period of 14 to 17 years. That is before accounting for energy savings, resale value, or storm damage avoidance.

Yes — impact windows lower insurance Florida-wide, but savings vary by ZIP code. Wind-risk surcharges differ by geography, so the dollar impact is not the same everywhere. Homes in Miami-Dade and Broward County typically see the largest premium credits. Base wind-risk premiums are highest in those counties. A home in Fort Lauderdale or Pembroke Pines with a fully rated opening-protection inspection can see annual savings at the high end of the $200 to $800 range — sometimes above it. Palm Beach County homeowners in cities like Boca Raton or West Palm Beach generally see mid-range savings. Base premiums there are somewhat lower than in coastal Miami-Dade. Regardless of county, the Florida Building Code requires all replacement windows and doors to carry a Florida Product Approval Number. That number is a prerequisite for the opening-protection rating to appear on the 1802 form.

Only windows and doors installed by a Florida DBPR-licensed contractor generate the documentation needed to pass a wind mitigation inspection. Before signing any contract, verify the contractor's license on the DBPR portal. A licensed contractor pulls the required building permit. That permit ties the product approval numbers to your address in the county records. A wind mitigation inspector cross-references those same records during the 1802 inspection. Skipping the permit to save money is the fastest way to lose the entire insurance credit. It also creates title issues at resale. If you are unsure what a full scope looks like, our impact door installation page explains which products meet the Florida Product Approval standard. Impact doors qualify for the same opening-protection rating as windows. For homeowners who want to understand the full cost picture before committing, our Florida impact window cost calculator provides a starting estimate by home size and county.