Plan on a full pool cage wash every 12 to 18 months — that is where the price and care guides Florida enclosure-washing companies publish consistently land — and closer to every 9 to 12 months if you live near salt water, which in Miami means most of the coast. In between, a monthly hose rinse and spot-cleaning keep the green from getting a head start.
Where those numbers come from
There is no official standard for screen enclosures, so the honest source is the trade itself: the published care guides of Florida companies that wash cages for a living cluster around a professional soft wash every 12–18 months inland, tightening to 9–12 months for coastal homes. Treat that as an industry range, not a law of nature — the real driver is how fast organic growth returns to your particular screens, and that varies street by street.
What everyone in that trade agrees on is the mechanism. Screens hold moisture in their mesh, and Florida gives them plenty: a May-to-October wet season, warm nights, and shade from the cage structure itself. Algae and green mold don’t need dirt to grow — they need damp mesh, and they get it roughly half the year here.
Why coastal Miami shortens the clock
Salt air is the local accelerant. Within a mile or two of the ocean or Biscayne Bay, salt settles on the mesh and the aluminum frame daily. It holds moisture against the metal, feeds corrosion on the fasteners, and gives grime something to stick to — which is why the coastal end of the industry range drops to 9–12 months, and why the frame and hardware deserve a fresh-water rinse far more often than that. In the homes we clean near the water, the difference between a rinsed cage and a neglected one is visible within a single season: the neglected one hazes over first at the top panels and along the frame lines, where spray and salt land and never get washed off by anything but rain.
The wet season sets the other half of the calendar. Growth that starts in June is established by September; a cage washed in late spring goes into the rainy months clean, which buys you the most time per wash.
A realistic Miami calendar
- Monthly: hose-rinse the screens and frame with fresh water — ten minutes, no chemicals. Near the coast, make it every two weeks for the frame.
- Wet season (May–October): spot-treat green patches as they appear so they don’t seed the whole panel. The method matters — here is how to clean algae off lanai screens without tearing them, and the short version is soft wash, never a pressure washer.
- Every 12–18 months (9–12 coastal): a full professional soft wash of the entire enclosure, per the industry guides above.
- Before hurricane season peaks: a clean, sound cage sheds wind-borne debris better than one with brittle, dirt-loaded mesh — and if a storm does come through, post-storm cleanup is easier when you know what condition the enclosure started in.
Questions about your place specifically? No need to finish the article — call, text, WhatsApp, or email us and we’ll take it from here.
Signs the cage can’t wait for the schedule
Green or black film spreading across panels, white chalky corrosion on the aluminum, screens that look hazy against the sky, or a musty smell on the lanai after rain — any of these means the growth is established and a rinse will no longer move it. At that point you’re booking a wash regardless of what the calendar says. Waiting costs real money: established growth takes longer dwell times and more labor to remove, and the same moisture that feeds it is working on your fasteners.
The honest split: what JAS does and doesn’t do
Washing the cage itself — the mesh and the exterior structure — is a soft-wash contractor’s trade, and it is not a service JAS books; we’ve published what a full cage wash costs in Miami so you know the market before you call one. What we do book is the other half of the lanai: the room behind the slider. Our deep clean, starting at $349, covers the detailed interior work — baseboards, door frames and tracks, reachable fixtures, sills, and the patio slider that connects the house to the lanai.
FAQ
Can I just pressure-wash the screens once a year instead?
No. Pressure washing is the single most common way screens get torn — the mesh can’t take concentrated force, especially older, sun-brittled mesh. Soft washing (mild solution, dwell time, soft brush) exists precisely because of this.
Does a screened lanai need cleaning if it never looks dirty?
The mesh does — salt and biofilm build invisibly before they show. The monthly rinse is cheap insurance, and the 12–18-month wash resets what rinsing can’t reach.
Is there a best season to book the full wash?
Late spring, ahead of the wet season, gives you the most clean months per dollar. Second best is right after the rains end, to strip the summer’s growth before it hardens over the dry winter.