Power Washing · St. Augustine, FL
Power Washing in St. Augustine, FL
St. Augustine’s historic stucco, travertine pavers, coastal salt air, and subtropical humidity demand a different approach than standard pressure washing. First Coast Power Washing serves St. Johns County homeowners with soft washing and pressure washing matched to each surface type — protecting your property while delivering results that last.
Why St. Augustine Properties Need a Different Approach
St. Augustine is the oldest continuously occupied European settlement in the United States — and that history shows in its architecture. From centuries-old stucco on the historic district’s coquina buildings to the travertine and paver driveways of newer Nocatee and World Golf Village homes, no two properties here are the same.
Standard pressure washing companies that arrive with a one-size setting can cause real damage: too much pressure strips old stucco, blasts mortar from historic masonry, lifts travertine pavers out of joint sand, and forces water behind aging window seals. We assess the surface and material before selecting pressure level and cleaning chemistry — every time.
The city sits just inland from the Atlantic and is surrounded by the Matanzas and San Sebastian rivers. Salt air, year-round humidity above 70%, and intense summer rainfall create some of the fastest organic growth rates on the First Coast — most properties show visible algae or mold within 6 to 12 months of their last cleaning.
Common St. Augustine Surface Issues We Fix
- Black algae streaks (Gloeocapsa magma) on roof shingles
- Green and black mold on stucco — the area’s most common exterior material
- Salt air oxidation and grime on coastal and Vilano Beach siding
- Tannin and biological staining on travertine and paver pool decks
- Slippery algae growth on cobblestone driveways and walkways
- Organic buildup on screen enclosures from high annual rainfall
- Gutter tiger striping and debris blockage from subtropical canopy
- HOA-flagged mold and staining on driveways and exterior surfaces
Services We Provide in St. Augustine
Every surface type found in St. Augustine and St. Johns County — cleaned with the right method for that material and environment.
House Soft Washing
Low-pressure soft wash for stucco, vinyl, and painted exteriors. We kill mold, algae, and mildew at the root using biodegradable solutions — safe for historic and newer St. Augustine homes alike.
Roof Soft Washing
The only safe method for asphalt shingles. Low-pressure sodium hypochlorite kills Gloeocapsa magma algae at the root and removes black streaking without voiding your shingle warranty. Results last 3–5 years in St. Johns County.
Driveway & Concrete Cleaning
Commercial surface cleaner on driveways, walkways, and sidewalks. Pre-treated with SH solution for algae and tannin stains. Cobblestone and paver driveways cleaned at low-to-moderate pressure to protect jointing material.
Travertine & Paver Cleaning
Chemical pre-treatment and controlled low pressure to lift biological staining from travertine pool decks and brick pavers — without displacing joint sand or damaging stone surfaces. Very common in Nocatee and World Golf Village.
Commercial Pressure Washing
Storefronts, parking areas, and commercial building exteriors along US-1, A1A, and the St. Augustine corridors. Flexible scheduling for tourist-facing businesses that need to maintain curb appeal year-round.
Gutter Cleaning & Brightening
Remove debris, blockages, and the black tiger striping caused by Florida sun and organic runoff. Protects your fascia, roofline, and foundation from water overflow damage during St. Augustine’s heavy summer rain season.
Serving St. Augustine & All of St. Johns County
We cover the full St. Augustine area — from the historic district and Lincolnville to the rapidly growing communities of Nocatee, Ponte Vedra Beach, and World Golf Village. Whether your home sits on A1A facing the Atlantic or back in a St. Johns County subdivision, we schedule promptly and show up prepared.
St. Johns County is one of the fastest-growing counties in Florida, which means a wide range of property ages and surface types — from brand-new stucco construction in Nocatee to older brick and coquina in the historic district. We adjust our approach to match your specific property rather than applying a single pressure setting across the board.
Areas Served
- St. Augustine (historic district & surrounding)
- St. Augustine Beach
- Vilano Beach (salt air premium applies)
- Anastasia Island
- Ponte Vedra Beach
- Nocatee
- World Golf Village
- Crescent Beach
- Hastings & Palm Valley
- St. Johns County unincorporated areas
St. Augustine Power Washing FAQs
Is soft washing safe for historic St. Augustine stucco?
Yes — soft washing is the only method we recommend for stucco. High-pressure washing can crack or erode old stucco, force water behind the finish coat, and void any existing warranty. Our low-pressure soft wash uses biodegradable cleaning solution to kill mold and algae without any physical force on the surface. We’ve cleaned homes well over 50 years old with no damage.
How often should I pressure wash my St. Augustine home?
Most St. Johns County homes benefit from a full exterior wash once a year. Properties within a mile of the coast — including Vilano Beach, St. Augustine Beach, and Anastasia Island — should be cleaned every 6 to 9 months because salt air and humidity accelerate organic growth significantly faster than inland properties.
What causes the black streaks on my roof?
Those streaks are Gloeocapsa magma — a cyanobacteria that thrives in Florida’s humidity. Our roof soft wash kills the organism at the spore level using diluted sodium hypochlorite applied at low pressure. Results typically last 3 to 5 years and the process does not damage shingles or void manufacturer warranties.
Can you clean my travertine pool deck without damaging it?
Yes, but technique matters. We apply a chemical pre-treatment to dissolve biological staining, then use controlled low-to-moderate pressure with a wide fan tip. We avoid directing water directly into paver joints to prevent joint sand displacement. After cleaning, we recommend applying a breathable paver sealer to protect the stone from future absorption.
Will pressure washing remove HOA violations on my driveway?
In most cases, yes. HOA-flagged staining is almost always organic growth — algae, mold, mildew, and tannin stains. We pre-treat with a sodium hypochlorite solution, then surface-clean with a commercial-grade rotary cleaner for an even, streak-free finish. Many of our St. Johns County customers call specifically because of HOA notices.
What is the best time of year to pressure wash in St. Augustine?
Late spring (May) and fall (October) are the ideal windows — temperatures between 55°F and 80°F allow cleaning solutions to dwell properly. In practice, St. Augustine’s mild winters mean we work year-round. If you have visible growth that needs to come off, we can schedule any month.
How much does soft washing cost in St. Augustine?
A typical single-story St. Augustine home runs $250 to $500 for a full exterior soft wash. Stucco homes and coastal properties sit toward the higher end. Two-story homes typically run $350 to $700. Roof soft wash ranges from $350 to $900 depending on size and pitch. Call for a free quote specific to your property.
Do you serve Nocatee and World Golf Village?
Yes, both are within our St. Johns County service area. Nocatee’s newer stucco construction accumulates mold fast due to its proximity to the Intracoastal. We handle full house washes, driveway cleaning, and screen enclosure cleaning throughout both master-planned communities.
Get a Quote for Your St. Augustine Property
Free on-site assessment. Method matched to your surface type and age. Written quote before any work starts. Serving all of St. Johns County.
St. Augustine · St. Augustine Beach · Vilano Beach · Nocatee · Ponte Vedra Beach · World Golf Village