Impact Window Replacement in South Florida
Old windows that stick, leak or rattle in a storm are a familiar problem in South Florida homes and condos. National Glass & Construction takes them out, repairs what we find behind the frames, and installs impact windows approved for your county, so the openings are protected without shutters and the permit is carried through final inspection.
Signs Your Windows Are Due for Replacement
-
Operation and Hardware: Sashes that stick or drop, cranks that strip, locks that no longer engage and tracks clogged with corrosion all point to a window near the end of its life. In coastal neighborhoods, salt air speeds up the wear on older frames and hardware.
-
Leaks and Hidden Damage: Water stains below a sill, bubbling paint, soft drywall or a musty smell near a window usually mean water is getting past the frame. Left alone, that moisture can rot wood bucks and rust the steel inside concrete, and the repair grows the longer it waits.
-
Storm Prep and Comfort: If every hurricane warning means hauling out panels or closing shutters, or if single-pane glass leaves rooms hot and noisy, replacement solves both at once. Impact windows protect the openings full time and, with the right glass, make the house quieter and easier to cool.
How a Replacement Project Runs
-
Measuring Old Openings: Older homes rarely have openings that are perfectly square or match the original plans, so we measure every window on site and note how each one was set. Products are ordered to those dimensions with the design pressure and approval the location calls for: HVHZ-valid in Miami-Dade and Broward, and typically a Florida Product Approval in Palm Beach.
-
Removal and Repairs: We work through the house in stages so openings are not left unprotected longer than necessary. Once an old frame is out, the opening itself is visible; rotted bucks, spalled concrete or missing waterproofing are repaired before the new window is anchored and sealed, and the stucco and interior returns are patched afterward.
-
Permit Through Final Inspection: Replacing windows requires a building permit and inspections. We file the application with the approval documents, coordinate inspections as the work progresses, and close out the permit at the end, leaving you with the approvals and permit record for your insurer or a future buyer. National Glass & Construction, founded in 1986, is licensed, insured and bonded.
Frequently Asked Questions
Can I replace only some of my windows?
Yes. Many owners start with the most exposed side of the house or the largest openings and finish the rest later. Keep in mind that any opening still fitted with an old window will need shutters or panels during a storm, and a wind-mitigation inspection generally rates opening protection by the least-protected opening. We can plan a phased project with matching frames and glass.
Can new impact windows lower my insurance premium?
They can help. A wind-mitigation inspection records the opening protection on your home, and insurers may use that report to reduce the windstorm portion of the premium. How much depends on your policy and insurer, so ask your agent before and after the project. The state's My Safe Florida Home program offers a free inspection and, for eligible low- and moderate-income homeowners, grants toward the openings that inspection recommends, subject to available funding. The grant must be approved before you sign a contract or a permit is pulled, so check mysafeflhome.com first.
In a condo, who is responsible for replacing the windows?
It depends on the association's governing documents. In many buildings the unit owner pays for windows and sliding doors while the association controls what they look like and how the work is done. Either way, expect an approval application, the building's window specifications and a certificate of insurance requirement. We can supply product and approval documents for the application.
What if you find rot or damaged concrete behind the old frame?
It happens often in older homes, and it has to be fixed before a new window can be anchored properly. We stop, show you what we found, and agree on the repair with you before continuing. Setting aside an allowance for hidden conditions in your budget keeps a discovery like this from becoming a surprise.
Will the work damage my interior finishes?
Some touch-up is normal. Depending on how the old window was set, removing it can disturb the stucco outside and the drywall, plaster or tile returns inside. We protect floors and furniture, patch the openings after installation, and explain at the estimate how much finishing is included, so you know whether painting is part of our scope or yours.
What affects the price of replacing windows with impact windows?
Product choices set the base: how many windows, how large, which styles and glass, and how high a rating each opening requires. Replacement then adds removal of the old units and any shutter hardware, repairs to the openings, stucco and interior finishing, and building logistics in condos and high-rises. Ask any contractor to list these separately so quotes can be compared fairly.
Where We Replace Impact Windows
Choose your city to see how we handle impact window replacement there.
Miami-Dade County
We also work in Palm Beach County. See all service areas
Ready to Replace Your Old Windows?
Call (305) 599-0909 or request a free estimate. We will inspect your current windows and explain what replacing them involves.
Get Free Estimate