Impact windows are built to outlast the home’s roof. The aluminum or vinyl frame, the laminated glass and the stainless hardware are each rated for decades, and the parts that wear, like weatherstripping and rollers, are replaceable. Here is what determines how long impact windows last in South Florida and how to get the most years out of them.
What wears, and what does not
| Component | Typical life | What affects it |
|---|---|---|
| Laminated impact glass | Decades; it does not wear out | Edge seal exposure, improper installation, impact damage |
| Aluminum frame | Decades | Salt air corrosion if the finish is damaged; marine-grade finishes last longest |
| Vinyl frame | Decades | UV exposure; quality vinyl is UV-stabilized and does not need paint |
| Insulated glass seal | Varies by unit; fog between panes means the seal failed | Heat, installation quality, manufacturer |
| Weatherstripping | Several years, replaceable | Sun, salt, use |
| Rollers, locks, balances | Replaceable hardware | Salt air; stainless steel lasts longest |
| Caulking and sealant | Needs inspection every few years | Sun and movement; reseal as needed |
Installation matters more than the brand
A window anchored to the NOA drawings, properly flashed and sealed, will last as long as the manufacturer intends. A window installed with the wrong anchors or no sill pan will leak, corrode and fail inspection. This is why the installer matters at least as much as the product. Elevate Impact Windows installs to the approved drawings with factory-trained crews, and every job gets a final inspection.
Salt air is the main enemy near the coast
- Choose marine-grade finishes and stainless steel hardware for beachfront, Intracoastal and Keys homes
- Rinse exterior frames and tracks with fresh water every few months
- Keep weep holes clear so water drains and does not pool in the frame
- Lubricate rollers and locks with a silicone product, never oil-based
Simple maintenance that adds years
- Clean glass with mild soap and water; avoid abrasive pads
- Vacuum tracks and sills so grit does not chew up rollers
- Check caulking each spring and reseal any gaps before hurricane season
- Inspect weatherstripping for cracks and replace when it stiffens
- Register the manufacturer warranty when the job is complete; we handle this for you
Warranties
Manufacturers cover their products with limited warranties on frames, glass and finishes, with terms that vary by brand and finish. ES Windows, for example, publishes a 10-year warranty on its painted finishes. We register the manufacturer warranty for every installation and stand behind our own workmanship. Ask for the specific warranty document for the products on your quote.
When to replace
Fog between panes, corrosion that has eaten through a finish, cracked laminated glass, or frames that no longer seal are signs an individual unit should be replaced. For older non-impact windows, replacement with impact glass is usually the better investment than repair. See 5 signs it is time to replace your windows and our window replacement service.
Frequently asked questions
How long do impact windows last in Florida?
Decades. The glass and frames are rated for the life of the home when properly installed, and wear parts like weatherstripping and rollers are replaceable.
Do impact windows fog up over time?
Insulated impact glass can fog if the seal between the panes fails. Single laminated glass has no air space and does not fog. A fogged unit should be replaced under warranty when applicable.
Does salt air ruin impact windows?
Salt air attacks hardware and damaged finishes. Marine-grade finishes, stainless hardware and periodic fresh-water rinses keep coastal windows in good condition for decades.
Is there a warranty?
Yes. Each manufacturer provides a limited warranty on its products, which we register for you, and our installation is backed by our workmanship guarantee.
Can one damaged window be replaced without redoing the house?
Yes. Individual units can be replaced and matched to the existing windows.