It’s an easy thing to overlook: your screens look fine, so the enclosure seems fine. But the hardware holding your pool cage or lanai together is a separate maintenance issue entirely, and it’s one that quietly gets worse the longer it’s ignored.
Standard screws and fasteners used in older or budget installations can corrode over time, especially in Florida’s humidity and salt-air-adjacent climate. Rust doesn’t just look bad. It weakens the connection points holding your frame together, and a corroded screw is more likely to shear off or strip out exactly when you need it to hold, like during a storm.
We regularly find this during rescreen jobs that weren’t originally called in for hardware issues: the screening itself needed replacing, but underneath it, the original screws had corroded enough to be a real structural liability. It’s a common enough finding that we check fastener condition as a standard part of every rescreen, not an upsell we go looking for.
Here’s a detail that actually matters, not just marketing language: “stainless steel” isn’t one single material, and not all of it resists rust equally. Cheaper, generic hardware sold as “stainless” is often 400-series stainless steel, which contains no nickel and roughly half the chromium of better grades, and it absolutely can rust over time, especially with the moisture and salt-air exposure Florida throws at outdoor hardware. It’s cheaper for a reason.
304 stainless steel is a different tier entirely. It’s what we use. With around 18% chromium and roughly 8 to 10% nickel in the alloy, 304 offers real, lasting corrosion resistance rather than a “stainless” label that doesn’t hold up outdoors. It’s the grade that’s actually built for standing up to moisture, humidity, and general outdoor exposure over years, not just months.
The fix is straightforward and worth doing at the same time as a rescreen: replacing standard hardware with true 304 stainless steel screws and fasteners. Since your enclosure’s structure is already exposed during a rescreen, it’s the most efficient time to address hardware. Doing it as a standalone job later means paying for a separate service call for something that could have been handled in the same visit.
If your pool cage is due for a rescreen, or if you’ve noticed any visible rust spots on the frame or fasteners even without a screen tear, it’s worth having a contractor check the hardware, not just the screening, and worth asking specifically whether they’re using true 304 stainless, not just hardware labeled “stainless” at the counter. It’s a small line item that prevents a much bigger repair down the road.
Related: Pool Cage Rescreening