Exterior
Impact Window Installation: Cost, Permits & Timeline
Replacing existing windows with impact-rated laminated glass units that satisfy Florida's wind-borne debris requirements without separate shutters. Every opening needs an approved product and a permit.
Verified August 2026
Typical cost
$18,500
$9,000 – $42,000
per window installed
$650 – $1,900
Permit
Required
$150 – $700
Timeline
1-3 days of installation
1-3 days of installation, 3-8 weeks including product lead time and permitting
Do you need a permit for impact window installation?
Yes
Impact Window Installation is permitted and inspected work in nearly every jurisdiction. Typical fees run $150 to $700, and a licensed contractor generally has to pull the permit.
What drives the cost
- Number and size of openings
- Design pressure rating required for your wind zone
- Aluminum versus vinyl frames
- HVHZ product approval requirements in Miami-Dade and Broward
- Stucco and drywall patching after installation
Permit, inspections and documents
| Permit status | required |
|---|---|
| Typical permit fee | $150 – $700 |
| Licensed contractor required | Usually yes |
| Owner-builder allowed | Yes, on owner-occupied homes |
| Inspections | Window buck / opening inspection, Installation and attachment, Final inspection |
| Timeline | 1-3 days of installation, 3-8 weeks including product lead time and permitting |
| DIY difficulty | 5/5 difficulty |
Documents typically required
- • Building permit application
- • Florida Product Approval or Miami-Dade NOA for each window
- • Attachment and anchoring details
- • Contractor license and insurance
- • Window schedule with sizes and design pressures
Impact Window Installation cost by city
Local labor and material pricing applied to the national baseline.
| City | Typical range | vs national |
|---|---|---|
| Miami | $10,600 – $49,600 | +18% |
| Tampa | $9,400 – $43,700 | +4% |
| Orlando | $9,200 – $42,800 | +2% |
| Fort Lauderdale | $10,300 – $47,900 | +14% |
| Jacksonville | $8,600 – $40,300 | -4% |
| West Palm Beach | $10,100 – $47,000 | +12% |
| St. Petersburg | $9,300 – $43,300 | +3% |
| Fort Myers | $9,800 – $45,800 | +9% |
| Cape Coral | $9,600 – $44,900 | +7% |
| Sarasota | $9,700 – $45,400 | +8% |
| Naples | $11,200 – $52,100 | +24% |
| Port St. Lucie | $9,200 – $42,800 | +2% |
Frequently asked questions
Do impact windows need a permit in Florida?
Yes. Replacing a window changes an opening protection assembly, so every Florida jurisdiction requires a permit with product approval numbers and attachment details for each unit.
Do impact windows lower insurance?
Florida requires insurers to offer wind mitigation discounts for approved opening protection. Have a wind mitigation inspection done after installation so the credit is applied.
Sources
Sources & verification
Last verified August 2026. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing — they are not quotes. Permit rules change; confirm with the building department before starting work.