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Deck Cleaning

That gray, slick film is mildew, not just age. Low-pressure cleaning lifts it without splintering boards or stripping your stain. Wood and composite decks, plus docks and piers.

Classic Pressure Washing & Window Cleaning cleans wood and composite decks, docks, and piers across Orange City, Volusia, Seminole, and Orange counties. Low-pressure wash with a deck-safe cleaning solution. Removes mildew, algae, and grime without splintering boards or stripping stain. Stain prep on the same visit. Most deck jobs cost $200 to $450; docks are priced on site. 20 Google reviews, 20 of them five stars. Licensed, insured, locally owned since 2018. Free estimates, same-day response.

Most of the gray on your deck is mildew

Reviewed by Clark Sabo | Last updated September 20, 2026

That gray, slippery film on the boards is mildew and algae feeding on Florida's year-round humidity. Left alone, the longer it sits, the deeper it works into the wood grain or the composite texture. It makes the deck slick when wet, eats through protective stain, and makes the whole thing look ten years older than it is.

A garden hose and a scrub brush won't get it out (you have probably tried). A rented pressure washing machine at full blast will get it out along with the top layer of the wood. What works is a controlled low-pressure wash with a cleaning solution that kills the growth and lifts it off without tearing into the surface underneath.

Wood decks

Pressure-treated pine, cedar, and hardwood decks all grow mildew here. The soft grain in pressure-treated lumber splinters if you hit it with too much pressure. We keep the pressure low and let the cleaning solution do the work. You get a clean surface with the grain intact, ready for foot traffic or a fresh coat of stain. If it has been a while since the last cleaning, there is more color under that gray layer than you expect.

Composite decks (Trex and others)

Composite doesn't rot, but it grows mildew. The texture that gives composite boards their wood-grain look also gives algae something to hold onto. Trex's care guide calls for periodic cleaning with appropriate solutions and low pressure, and that is how we treat every composite deck. No high pressure, no wire brushes, no abrasive pads.

Stain prep

Planning to restain a wood deck? Cleaning comes first. Old mildew, dirt, and flaking stain have to come off before new stain will bond. We prep the deck for restaining on the same visit. Once it dries, the surface is ready for your painter or for you. The North American Deck and Railing Association (NADRA) publishes deck maintenance guidance if you want to read up before you pick a stain.

Pair it with fence cleaning

A deck and a fence grow the same algae. We clean both on the same visit and give you a combined price. See our fence cleaning page for details.

Why Florida decks need cleaning more often

Humidity, daily summer rain, and warm temperatures give mildew, algae, and mold everything they need on any outdoor surface. Decks under tree canopy or on the shaded side of the house are the worst. Regular cleaning keeps the growth from getting deep enough to discolor the boards for good or soften the wood. Treated lumber still needs upkeep in a wet climate; the EPA's wood preservative overview covers what the treatment does and does not do. The same low-pressure thinking behind our soft washing service is what keeps that protection intact.

Dock and pier cleaning

We clean residential docks and piers anywhere in our Volusia, Seminole, and Orange County service area. That covers wood and composite dock decking, handrails, and the pilings above the waterline. Dock decking picks up algae and bird staining, and neither comes off with a hose.

The method matches what we do on a deck. We pre-treat with a cleaning solution that breaks down the algae and the bird staining, wash at low pressure so we don't raise the grain on wood boards or scuff composite, then rinse. Pilings get the same treatment down to the waterline. We do not work below it.

Dock cleaning is priced on site. The length of the dock, the decking material, and how much growth is on the pilings all move the number, so we look at it first and give you an exact price before we start.

What's included

  • Full deck inspection for damage and soft spots
  • Pre-treatment with deck-safe cleaning solution
  • Low-pressure wash, with the cleaning solution doing the work
  • Railing, stairs, and spindle cleaning
  • Thorough rinse and debris removal
  • Optional stain prep for restaining

Typical cost: $200 to $450

Based on deck size, material, and condition. Docks and piers are priced on site. We quote a firm price after a look at the deck, and that number does not change.

Deck Cleaning FAQ

Can you pressure wash a wood deck without damaging it?

Not with the standard high-pressure setup. The up to 3,000 PSI we run on concrete splinters the grain, gouges soft boards, and strips stain off the surface. On a deck we drop the pressure right down and let a deck-safe cleaning solution do the work. The solution breaks down the mildew and algae, and the low-pressure rinse lifts it off with the grain intact.

How much does deck cleaning cost in Central Florida?

Most deck cleaning jobs run $200 to $450. Size moves the price most, then condition and material (wood or composite). Big decks, heavy mildew, and decks that need stain prep land at the top of the range. We look at the deck in person and give you an exact price before we start.

Do you clean composite decks like Trex?

Yes. Composite collects mildew and algae like wood does, especially in Florida humidity. We adjust the cleaning solution and the pressure for composite boards. Trex publishes a care guide that calls for appropriate cleaners and low pressure, which is how we do it. No high pressure and no wire brushes on composite.

How often should I have my deck cleaned in Florida?

Here in Central Florida, we tell most people every 12 to 18 months for exterior surfaces, and a deck is no exception. Decks under tree canopy or on the north side of the house stay shaded and damp longer, so watch those for the gray coming back. Wait too long and the growth works into the wood grain or the composite texture, and it costs more to get out.

Can you prep my deck for restaining after you clean it?

Yes. If you plan to restain or reseal a wood deck, we prep it on the same visit. Cleaning takes off the mildew, dirt, and loose finish. Once the deck dries, it is ready for stain. Apply it within a few days, before anything grows back. We do the cleaning and the prep. You or your painter handle the stain.

Will deck cleaning remove my existing stain?

Our low-pressure process cleans the surface without stripping stain that is still bonded to the wood. If the stain is already peeling or worn through, some of it will come off. That is what you want if you plan to restain, since the old finish has to come off for the new coat to stick. We tell you what shape your stain is in at the estimate.

Do you clean docks and boat piers too?

Yes. We clean residential docks and piers: wood and composite decking, handrails, and the pilings above the waterline. Same low-pressure method as a deck, with a cleaning solution that breaks down the algae and the bird staining, then a rinse. Dock jobs are priced on site, since the length of the dock, the decking material, and how much growth is on the pilings all change the number.

Where do you clean docks and piers?

Anywhere in our Volusia, Seminole, and Orange County service area. Call us with the address and we will schedule a look.

Related Services

Deck cleaning pairs with fence, paver, and exterior surface work on the same visit.

Get a free estimate

  • Exact price before we start, no surprises
  • Most jobs done in a single day
  • We respond within hours, not days

Most estimates scheduled within 24 hours.

Your deck is still under there

Low-pressure cleaning strips the mildew and brings back the color you paid for. Free estimates across Volusia, Seminole, and Orange counties.

Call (407) 587-6335
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