EXTERIOR · COMPOSITE DECKING
COMPOSITE DECKING CLEANING
The Gold Standard, Every Time.
Trex. TimberTech. Fiberon. Each has specific chemistry rules. We follow them — so your warranty stays intact and the deck looks like the showroom again.
Get A Free EstimateOur Process
How We Deliver The Gold Standard
Identify the Board
Confirm manufacturer and board generation — this determines chemistry and pressure limits.
Composite-Safe Wash
Manufacturer-aligned detergent applied at the approved pressure, no exceptions.
Groove & Fastener Detail
Board grooves, hidden fasteners, and transition edges hand-worked so the clean is uniform.
Final Rinse
Deep rinse from high side to low, verify no residue on adjacent siding.
Real Work, Real Results
Before & After
Questions & Answers
Frequently Asked
Will this void my Trex warranty?
No — we use the chemistry and pressure Trex (and other major brands) specifically approve. We can share the documentation.
Can you remove mold between the boards?
Yes — that's where most of the organic lives. We work the grooves so the clean actually lasts.
What about the railings?
Included — aluminum, composite, or cable railings all get hand-detailed.
NE Florida Composite Deck Intelligence
What Florida's Climate Does To Composite Decking
Composite decking was engineered to outlast wood, but NE Florida's pollen load, coastal humidity, and long summers create failure patterns that manufacturers did not fully anticipate when they wrote their maintenance guides in northern test environments.
Pressure Limits: What Hollow-Core Boards Cannot Handle
Most composite decking sold in NE Florida — Trex Transcend, TimberTech AZEK, Fiberon Horizon — uses a hollow-core or capped composite construction that creates structural rigidity with less material. The same design that makes the boards light and stable makes them pressure-sensitive. Cleaning above 1,500 PSI risks delamination of the cap layer from the composite core, and permanently flattens the embossed wood-grain texture that distinguishes premium composite from older generation solid boards.
Flattened grain texture is not a cosmetic issue alone — it also reduces the micro-surface that keeps the deck non-slip when wet, which is a safety consideration on any deck adjacent to a pool or spa.
Tannin & Organic Staining: Why Composite Stains Faster Than Wood
Composite decking's surface is more porous than it appears. The cap layer has microscopic channels that admit pollen, tannins from wet leaf contact, bird waste, and coastal algae spores — often faster than solid wood because wood's natural oils provide some baseline resistance that composite lacks. The correct treatment is a deck-specific cleaner matched to the board generation, not sodium hypochlorite, which can bleach the cap pigment and leave a patchy finish.
Low-pressure application followed by a soft-brush scrub and thorough rinse is the manufacturer-aligned method for all three major brands. Sodium hypochlorite at any concentration voids coverage under most composite warranties.
The NE Florida Pollen Problem
Florida's pollen calendar runs longer than any northern region. Oak pollen arrives in March, peaks in April, and overlaps with pine pollen which runs April through June. The combination creates a sticky resin film on composite decking that rain does not remove — the resin bonds to the cap surface and traps UV-degrading particulates that accelerate the chalky faded appearance homeowners misattribute to worn-out or sun-damaged boards.
Annual cleaning before the summer rainy season removes this resin layer and the mold spore reservoir it creates. Homeowners who skip one or two cleaning cycles typically replace decking boards that could have served another decade with proper maintenance.
The Manufacturer Maintenance Window
Trex, TimberTech, and Enphase all publish annual cleaning requirements in their product warranties. The language is specific: failure to perform annual cleaning can be cited as grounds to deny warranty claims related to surface degradation, mold penetration, and premature fading. This is not fine print — it is the condition under which the 25- and 30-year warranties apply.
The ideal cleaning window in NE Florida is late March through early May — after the first oak pollen wave settles but before the high-humidity summer growth window opens in June. Cleaning in this window removes the pollen resin before it cures, and closes the surface against the mold spore bloom that summer rains accelerate through August.
Ready When You Are
Book Your Composite Decking Cleaning Quote
St. Johns, Duval, and Nassau counties. Same-day callback if you reach us before 5pm weekdays.
Prefer to submit online? Our estimate form takes 60 seconds and you’ll get a same-day response.
Start My Free EstimateOr call (904) 466-1622
Exterior Vetting
What to ask your exterior cleaning contractor
Exterior cleaning around Northeast Florida homes requires the right method for each surface, not one pressure setting for everything.
When do you soft wash versus pressure wash?
Siding, stucco, painted trim, screens, and roofs need soft washing. Concrete and some hardscape can handle controlled pressure when the operator knows the surface.
How do you protect plants, pools, and runoff paths?
Ask about pre-wetting, controlled application, rinsing, and water movement around landscaping, pool decks, and drainage areas.
What chemistry do you use for organic growth?
The answer should be specific to algae, mildew, tannins, rust, or irrigation staining. One generic cleaner is not a property-care system.
Are the exterior specialists trained only for exterior scope?
FCPE keeps exterior discipline separate so the tools, chemistry, safety expectations, and surface knowledge stay focused.
Do you document the finished work?
Before and after photos, scope notes, and surface observations create accountability after the truck leaves.