Short answer: a pool deck and screened lanai in Tallahassee get dirty as two separate problems that need two separate methods, and the single biggest mistake is treating the whole backyard as one pressure-washable surface. The screen enclosure collects black mildew on the mesh and framing from the shade and trapped humidity; the deck around the water turns slick with algae on the flatwork and in the joints. Cleaning the enclosure calls for a soft wash that lifts growth without bending a panel or popping a spline, while the deck needs pressure matched to whatever it is made of. Get both right and you end up with a non-slip surface and a screened room that reads clean every time you walk into it.
Why a Tallahassee pool deck and lanai go green the way they do
Two local conditions set the pace for every pool space in the Big Bend. The first is the shade. Tallahassee's live-oak canopy - the same trees that make Miccosukee Road, Centerville, and the neighborhoods off Old St. Augustine famous - holds moisture over a backyard well into the afternoon after a rain or a swim. Screened enclosures make it worse: a screen traps humid air the way a greenhouse does, so the mesh, the aluminum framing, the corners, and the underside of the ceiling stay damp for hours. That still, damp air is exactly what black mildew and green algae need to establish and spread.
The second is the ground. Unlike the sugar sand that starts a few hours south, Leon County sits on red clay, and that clay stains. Rain splashing off a planting bed throws rust-orange clay up onto the bottom course of the pool deck, onto light concrete pavers, and across the walkway leading to the enclosure. Add the organic wash from the canopy - oak catkins in spring, acorns and leaf fragments all year, tannin that drips from wet leaves - and a pool deck collects a film of living growth and mineral stain that a plain rinse never touches. This is the same red-clay and tannin chemistry that hits driveways and patios all over town, applied to the one surface everyone walks on with wet feet.
The two very different dirt problems in a Tallahassee pool space
Most homeowners describe it as one thing - "the pool deck is dirty" - but two distinct problems settle on opposite halves of the space, and each needs its own method.
- The screened enclosure. In the shade and trapped humidity under a screen, mildew crawls up the mesh, collects on the aluminum or wood framing, and turns the corners and the ceiling edge black. Screens cannot take pressure at all: a wand will bend the panels, pop the spline, and rip the mesh. This half has to be soft-washed by hand so the growth lifts off the frame and the screen without tearing anything.
- The deck itself. The paver, concrete, or stained-slab surface around the waterline stays damp under the roof overhang and greens up with algae in the pores and the joints, while red clay from the beds settles into every texture. Flatwork is where higher, surface-matched pressure is safe - but it has to stay away from the screen, the pool coping, and the seals around the water.
It is common to see a crew blast the deck and leave the screen grey, or clean the screen and walk away with the deck still slick. A proper Tallahassee pool space is cleaned as one enclosure: enclosure first, deck second, coping and waterline last, with the screen protected while the flatwork is worked.
Cleaning the screened lanai without damaging it
The screened enclosure is where a lot of Big Bend pool spaces first go wrong, because the dirtiest part is also the most delicate. The mesh and the framing collect a fine grey film of mildew, pollen, and clay dust, and the corners where the frame meets at the top of a tall panel darken first. Around the lake and golf-course communities, and on the shaded lots of Killearn Estates, Betton Hills, and Myers Park, mildew also creeps up the outside face of the framing wherever sprinklers and shade keep it wet.
We do not put a pressure washer on a screen panel. The mesh spans several feet with nothing behind it, and a blast will blow it out at the spline or stretch it so it never sits flat again. Instead we soft wash: a cleaning solution is applied to the mesh and framing, given time to kill the mildew and algae at the root, then rinsed at a gentle pressure - barely more than a garden hose - so nothing is torn or bent. The door tracks, the bottom rails where debris collects, and the ceiling corners where the growth is heaviest all get direct attention. Because the growth is dead rather than merely wiped off, a screened lanai stays visibly cleaner far longer than one that has only been rinsed.
Cleaning a pool deck by the material under it
The flatwork around a Tallahassee pool is rarely one material, and each one sets a different limit on how it can be cleaned.
Concrete pavers
Pavers are a common pool-deck surface on the newer homes across SouthWood, Bradfordville, and the Ox Bottom area, and they have two problems at once: algae grows in the joint sand and across the face, and red clay stains the lighter concrete pavers an orange-tan. A surface cleaner with controlled pressure clears the face evenly without the zebra striping a handheld wand leaves, and the joints are handled carefully so the sand is not blown out ahead of schedule. If the pavers are due for a seal, the deck is cleaned first - our paver sealing in Tallahassee is the second step that locks in the color and makes the next round of clay and tannin stains far easier to rinse off.
Stained or plain concrete
Many pool decks around town, and the concrete walkways leading to them, are finished with a light-colored coating to keep the surface cooler under the Florida sun. That coating is what is being cleaned, and it is sensitive: too much pressure etches or chips it. Concrete decking gets a moderate, even clean with the solution doing the work, and the finish is checked before we commit so a fragile coating is not damaged. A plain, uncoated slab is more forgiving and takes a firmer surface-cleaner pass, though the same red-clay and tannin pre-treatment applies.
Brick and stone coping
Brick coping and brick edging are delicate the same way Tallahassee's older house brick is. The mortar joints on a pool surround are softer than the brick, and pressure erodes them. Brick and natural stone around the water are cleaned low and slow, with solution doing the lifting, never a blast.
Wood and composite where the deck meets the yard
Where the pool space opens onto a wood or composite deck, the approach switches to a true soft wash - the same method we use on our deck and patio cleaning in Tallahassee. Pressure furs the grain of wood and can haze composite and void its warranty; low pressure and chemistry clear the growth without the surface damage.
Coping, waterline tile, and the spots a deck wash misses
The strip that sees the most wet feet and splashback is the coping around the water, and it is also the most delicate. Coping is frequently a different material from the body of the deck - brick, travertine, or a colored concrete cap - and it turns slick with the same algae that greens the flatwork. We clean the coping separately, at a pressure matched to that specific material, and take care not to force water behind the caps or into the tile grout.
Where there is waterline tile, it gets its own light treatment so the mineral line and algae do not build a permanent ring at the water surface. Throughout the job we work around the pool water and the plantings, protecting both the way we protect landscaping on a Tallahassee house washing. No rinse runs into the water in a way that disturbs the chemistry, and the beds and shrubs around the enclosure are covered or kept wet during the wash.
Why clean footing matters more on a pool deck than anywhere else
The practical reason to stay ahead of a slick pool deck is safety. Algae on paver or concrete is genuinely slippery when wet, and the walk between the back door and the water is crossed with wet feet and by guests who do not know the surface. A deck that reads clean and non-slick underfoot is the difference between a backyard people are wary of and one people actually use. This is routine work around the rental properties near FSU and FAMU too - a clean, non-slick pool deck and lanai is one of the first things a landlord markets to the next tenant, and the fastest thing a property manager resets between leases.
How often a Tallahassee pool deck and lanai needs cleaning
Under the canopy, the two halves of a pool space move on different schedules. The screened enclosure should be cleaned whenever the mesh starts to grey and the framing corners go dark, which in Big Bend humidity is often a couple of times a year. The deck itself can go a little longer, but once algae has built up in the joint sand and across the face it is worth doing before the joints wash out and cost you an early re-level or reseal.
Many homeowners book the enclosure and the deck together once a year and let a single visit reset the whole backyard. Late spring - after the heaviest oak and pine pollen drop has finished - is the best window, because cleaning mid-pollen just means doing it twice as the fresh film settles back. Homes buried under deep canopy on the north side, and lanais that catch sprinkler overspray, will want the enclosure more often. Our guide to how often to pressure wash a house in Tallahassee covers the full-exterior schedule, and this pool space fits right in on the same cycle.
What a proper pool deck and lanai clean includes
- The screened enclosure, mesh panels and framing cleaned by soft wash so nothing is torn or bent.
- The door tracks, bottom rails, and ceiling corners, cleared of the mildew and debris that gather in the damp.
- The pool deck, paver, concrete, brick, stone, or wood, cleaned at a pressure matched to its material.
- The coping and waterline tile, treated separately so they come back non-slick without water forced behind them.
- Protection of the pool water and landscaping, with no harsh rinse runoff into either.
Pool furniture is moved aside or worked around so the full surface is reached, and the area is left dry enough to use that same day. It is the difference between a backyard you maintain and a backyard you actually live in through a Tallahassee summer. For the broader picture of how the flatwork clean fits with the rest of the property, see the driveway and concrete cleaning page or the full Tallahassee services list.
