What San Marco properties need most: River-adjacent humidity plus heavy shade puts green algae on stucco faster than most owners expect, and stucco holds growth in its texture where a rinse alone will not reach it.
Tile roofs here are often original barrel tile — brittle, expensive, and not something to walk without knowing what you are doing. Several streets sit low enough that storm surge and river backup have left silt lines on lower walls, which is a different cleaning problem from algae and gets treated differently.
Why San Marco properties get treated differently
These are the details that decide which method, which pressure and which solution strength a property gets. They are not the same across Jacksonville.
Housing built
1920–1950, with infill
Exterior walls
Stucco, brick, painted masonry
Roof materials
Clay and concrete tile, asphalt shingle
Tree cover
Heavy
ZIP codes
32207
County
Duval
Shade: Dense tree cover keeps walls damp for most of the day. Enough salt carried inland on the easterly breeze to speed up growth.
Water supply: Municipal supply, so irrigation rust is less common than in Clay County.
Community rules: Few covenants — people clean when they notice it, not when they get a letter.
We also work regularly around San Marco Square, the Southbank Riverwalk, Baptist Medical Center. Those are geographic reference points only — no affiliation or endorsement is implied.
How often San Marco properties need it
Adjusted for heavy tree cover and moderate salt exposure. The Jacksonville average is in brackets for comparison.
| Surface | San Marco interval | Jacksonville average |
|---|---|---|
| House exterior | 7–11 months | 12–16 months |
| Driveway & walkways | 9–13 months | 12–18 months |
| Roof | 2–3 years | 2–4 years |
| Gutters | Every 4–6 months | Twice a year |
| Windows | 6–12 months | 6–12 months |
Common questions from San Marco homeowners
When is the best time of year to book in San Marco?
Late spring, once the oak pollen has finished falling — usually the second half of April here. Washing before pollen season ends means doing it twice.
Autumn is the other good window — after the summer growth season, before holiday guests arrive.
How often will my San Marco home need it?
With canopy this dense, plan on every nine to twelve months. Shaded walls in San Marco green up noticeably faster than the Jacksonville average, and the north elevation will always tell you first.
The reliable signal is a visible colour difference between the shaded elevation and the sunny one. Full frequency guide by surface.
Is my older home safe to wash?
Yes, with the right approach. Housing from the 1920–1950, with infill era needs a weaker solution, a shorter dwell and a test panel before anything else happens — particularly where paint has started to chalk.
If a test tells us the finish is too far gone to clean safely, we say so and stop rather than taking your money and taking the paint with it.
Answers
Questions from San Marco
Do you service all of San Marco?
What is the most common exterior problem in San Marco?
How much does pressure washing cost in San Marco?
How soon can you get out to San Marco?
Do I need to be home?
Get a price for your San Marco property
Send a few photos and your address. Most estimates go back the same day, with anything that could change the number flagged up front.