Paver cleaning on the Treasure Coast is about more than appearance. Florida's humidity, shade, salt air, and pool splash cause algae and mildew to grow in the porous surface and joints, while rain and irrigation slowly wash out the sand that holds pavers together. A proper job cleans, re-sands, and often seals, so understanding all three is key to protecting your investment.
Why Florida pavers grow algae so quickly
Pavers are textured and porous, giving organic growth plenty to cling to, and they are usually installed on patios, walkways, and pool decks that stay damp. On the Treasure Coast that means:
- Humidity and rain keep pavers moist for algae and mildew.
- Salt air near the coast holds moisture and speeds regrowth.
- Pool splash and sprinklers keep surfaces constantly wet.
- Oak and palm tannins stain lighter pavers brown.
The role of joint sand
What makes pavers different from a poured slab is the sand between them. That sand locks the pavers together and blocks weeds. Over the years it washes out, and each cleaning removes more. When joints run low you get weeds, ants, shifting stones, and trip hazards. That is why a real paver cleaning includes re-sanding, not just a rinse. Learn more on our paver cleaning page.
Why sealing matters here
Sealer makes pavers less porous, locks the joint sand in place, and protects color from our brutal UV. Sealed pavers grow algae more slowly and clean up more easily, so sealing genuinely reduces long-term maintenance. In Florida sun, sealer wears every few years, so resealing is part of ownership. Pavers that have never been sealed are good candidates for a clean-and-seal reset that transforms both the look and the durability.
What proper paver cleaning includes
- Pre-treating the surface with an algaecide to kill growth at the root.
- Cleaning with a flat surface cleaner at controlled, low pressure.
- Detailing edges and borders that the machine cannot reach.
- Re-sanding the joints with fresh sand.
- Optionally sealing to protect color and slow regrowth.
Salt air and coastal homes
Homes in Vero Beach, Sebastian, and on the barrier island deal with a salt film that keeps surfaces damp and feeds algae faster. Coastal pavers need cleaning sooner, and since the same conditions affect nearby surfaces, many homeowners pair paver work with pool deck cleaning or house soft washing so the whole outdoor living area matches.
Common paver mistakes to avoid
- Blasting at full pressure, which strips joint sand and chips edges.
- Skipping re-sanding, which leaves pavers unstable and weed-prone.
- Sealing over dirty or damp pavers, which traps growth and clouds the finish.
- Using the wrong sand for the joint width, which washes right back out.
How often and what it costs
Most Treasure Coast pavers need cleaning every 1 to 2 years, with resealing every 2 to 5 years. Pricing depends on square footage, how heavy the growth is, and whether re-sanding and sealing are included, so an accurate quote follows a look at the property. A quote that leaves out re-sanding is not a complete paver job, so ask exactly what is included. It is also worth asking whether the price covers moving patio furniture and planters, cleaning the edges and borders by hand, and any post-treatment, since those details separate a thorough job from a rushed one and affect how the finished pavers actually look.
Choosing the right paver company
Not every pressure-washing outfit does pavers properly, so it pays to ask a few questions before hiring. Confirm they clean at controlled pressure with a surface cleaner rather than a bare wand, that re-sanding the joints is included, and that they offer sealing. Ask what type of sand they use and whether they carry insurance. A local company that has worked on Treasure Coast patios, walkways, and pool decks will understand how salt air and constant moisture behave here and will tailor the recommendation to your specific pavers. The cheapest quote is rarely the best value if it skips the steps that keep pavers stable and clean over the long run.
Want pavers that look great and stay stable? Call MainSail Pressure Washing at (772) 559-2666 for a free estimate. We are fully insured and serve the entire Treasure Coast 7 days a week.



