How Do You Know If Your Contractor Is Actually Qualified to Install Impact Windows?
In Florida, any contractor replacing windows on a residential structure must hold a valid state-issued license — either a Certified General Contractor, Certified Building Contractor, or a specialty window and door license issued by the Florida Department of Business and Professional Regulation. Beyond the license itself, a qualified installer should carry active liability insurance, pull the required building permits before touching your home, and have documented experience with impact-rated products that meet Miami-Dade or Florida Building Code approval standards.
Why Licensing and Permits Matter More Than You Think
The Permit Is Part of the Installation
A lot of homeowners treat the permit as paperwork hassle. It isn’t. When a contractor pulls a permit and a county inspector signs off on the finished job, you get a documented record that the windows were installed correctly. That record matters when you go to sell the house, file an insurance claim, or apply for a wind mitigation credit. Unpermitted window installations can void your homeowner’s insurance coverage and create serious headaches during a real estate transaction.
The cities and municipalities across Palm Beach County — including the local jurisdiction covering most of Boca Raton — require inspections at specific stages of the installation. A contractor who skips permits is also likely skipping steps that protect you. You can verify permit activity through the City of Boca Raton’s official website.
What the License Number Actually Tells You
Florida’s contractor licensing is public record. Before you sign anything, ask for the contractor’s license number and check it on the DBPR online portal. You’ll see whether the license is active, whether there are any disciplinary actions on file, and what type of work that license actually covers. A salesperson license or a handyman registration does not qualify someone to replace structural windows in your home.
At STS Impact Windows & Doors, all work is performed under proper licensure with permits pulled for every job. See why that matters to homeowners throughout South Florida.
Red Flags to Watch for When Getting Quotes
No Mention of Permits in the Contract
If a quote comes back and the word “permit” never appears, ask directly. Some contractors price jobs without permits to appear cheaper on paper. The savings evaporate fast if the county flags the work later. Permit fees in Palm Beach County are relatively modest compared to the cost of having work redone or fined.
Vague Product Specifications
A qualified contractor will name the exact impact-rated window product going into your home, including the manufacturer and the product’s Notice of Acceptance (NOA) number. If a quote just says “hurricane windows” without specifying the brand, series, or approval documentation, that’s a concern. Brands like PGT, CGI, and ES Windows each have specific product lines that carry Miami-Dade approvals — your contract should reflect exactly which one is going in.
Pressure to Skip the Inspection Stage
Once windows are installed, a county inspector needs to verify the anchoring, flashing, and seal before the job is considered complete. Any contractor pushing to close out the job before that inspection happens is cutting a corner that exists for your protection. Walk away from that situation.
Related Questions
Can a handyman legally replace windows in Florida?
No. Florida law requires a licensed contractor for any window replacement that involves structural work on a building. A registered handyman can handle minor repairs — caulking, screen replacement, hardware swaps — but swapping out full window units requires a proper contractor’s license and a permit. Hiring an unlicensed person for this work puts both parties at legal risk and leaves you without recourse if something goes wrong. If you want to understand the full process, the STS FAQ page covers common questions about installation requirements.
Does the type of impact window affect how complex the installation is?
Yes, significantly. A single-hung impact window in a standard wood-frame opening is a straightforward job. A large picture window or sliding glass door in a concrete block wall — which is the dominant construction style in communities near Delray Beach and south Palm Beach County — requires different anchoring methods, heavier equipment, and more installer experience. The complexity also increases when existing frames need to be removed versus when a contractor uses a pocket installation that keeps the old frame in place. Always ask your contractor which method applies to your home and why. You can request a free quote to get a clear breakdown for your specific situation.
