Pavers are the surface where a pressure washer does the most damage per minute. Not because they are fragile, though travertine is. Because of what lives between them.
Hit paver joints with a wand and you blow out the sand that locks the whole patio together. Now the pavers wobble, the joints fill with water and seeds, and you have a weed farm by next month. The patio looked clean for a week and you made it worse.
Here is the method that works: pull weeds and sweep, apply a cleaner matched to the paver type, let it dwell, rinse with a wide fan tip from a distance, let everything dry completely, then put joint sand back. Brick and concrete can take moderate pressure. Travertine gets a soft wash only. Sealing is optional.
Key Takeaways
- The joints are the job. Cleaning without re sanding is half a job.
- Brick and concrete: moderate pressure, wide tip, keep the wand moving.
- Travertine: soft wash only, stone safe cleaner, no acids.
- Weeds and algae come from damp joint sand, which St. Pete keeps damp all year.
- Sealing helps lock sand and color, but plenty of pavers do fine without it.
Know Your Paver First
Three materials, three different tolerance levels. Get this wrong and the rest of the post does not matter.
| Paver | How to spot it | Tolerance | Where you see it in St. Pete |
|---|---|---|---|
| Brick | Reddish, uniform, slightly porous face | Firm, but worn brick flakes | Walkways, garden paths, borders |
| Concrete | Manufactured, many shapes and colors | Hard and durable, color can strip | Driveways, patios, walkways |
| Travertine | Natural stone, creamy, visible pits | Soft and porous, etches easily | Pool decks, patios, upscale entries |
If you are not sure which you have, the pits are the giveaway. Travertine has little holes in the face. Manufactured pavers do not.
How to Clean Pavers, Step by Step
1. Clear and sweep
Furniture, planters, the grill. Then pull the visible weeds and sweep the joints. You do not want to grind that debris into the stone in step four.
2. Wet the plants
Anything green along the edge gets soaked with plain water. Standard practice, every job.
3. Apply the cleaner and let it dwell
Match it to the material. A general outdoor cleaner is fine on brick and concrete. Travertine needs a stone safe product, and no acids, ever, unless you like a dull finish. Give it ten to fifteen minutes. Do not let it dry. Mist it if it starts to.
4. Rinse with a wide fan, from a distance
This is where people wreck patios. Use the widest tip you have. Keep the wand moving in overlapping passes. Hold it farther back than feels necessary. On brick and concrete you can use moderate pressure. On travertine, keep it at soft wash level, like a strong garden hose.
Aim across the joints, not into them. You are trying to leave the sand alone.
5. Dry completely
Not mostly dry. Completely. Joint sand will not go into damp joints and polymeric sand will not set. In summer that might mean waiting until the next morning.
6. Re sand the joints
Sweep sand in, work it down, sweep the excess off the faces. If you use polymeric sand, mist it per the bag and stay off it while it cures.
7. Seal, if you want to
Optional. More on that below.
The pool deck cleaning guide and the walkway cleaning guide cover the surface specific details for the two most common paver spots.
Travertine Deserves Its Own Warning
Travertine is everywhere around St. Pete pool decks, and it is the surface we get the most “can you fix this” calls about.
It is natural stone. Soft, porous, and it etches. A tight high pressure stream leaves permanent marks that look like someone dragged a rake across it. Acidic cleaners dull the finish and it never comes back.
If your situation looks like this: light travertine around the pool, gone gray or green in the shaded corners. That is soft stone plus organic staining. Soft wash. Stone safe cleaner. Distance. Patience. Reaching for full power is the fastest way to ruin it.
Work in the shade if you can. Cleaner drying too fast on stone leaves streaks. The pool deck pressure washing page covers how we handle it.
Why the Weeds Keep Coming Back
If you feel like you pull weeds every few weeks, you are not imagining it. Paver joints in St. Petersburg are tiny garden beds:
- Warm and humid, so the joint sand never fully dries.
- Wind and shoes drop seeds and organic dust in constantly.
- Rain waters them for free.
- Shade lets moss and algae join the party.
Cleaning removes what is there now. Re sanding is what slows the next round, because fresh sand, especially polymeric, is a much worse place for a seed to land.
Should You Seal?
Depends. Sealing is a finish, not a requirement.
- For: locks joint sand in place, makes the next cleaning easier, deepens color and adds a sheen.
- Against: some people prefer the natural look, not every surface is a good candidate, and travertine has its own considerations.
- Timing: sealer only bonds to a clean, fully dry surface. Never the same day as the wash.
We will tell you honestly whether it is worth it for your pavers. We are two people doing the work ourselves, and pushing sealer on every job is not how we want to run this.
Where Pavers Fail First
- Driveways: tire marks, oil, and algae along the shaded edges. See driveway pressure washing or the driveway cleaning guide.
- Walkways and garden paths: moss in the joints wherever it stays damp and shaded. The garden path and walkway service is built for this.
- Pool decks: the gentlest handling of anything on the property, usually travertine.
For the full picture on every surface, the complete guide to pressure washing in St. Petersburg is the companion to this post.
Frequently Asked Questions
Can I use a regular pressure washer on my pavers?
You can. The risk is too much pressure or too narrow a tip, which etches travertine, marks concrete, and blows out the joint sand. Wide tip, distance, and re sanding afterward are what make it a lasting result instead of a rinse.
How do I know if my pavers are brick, concrete, or travertine?
Brick is reddish and uniform. Concrete is manufactured, any shape or color. Travertine is natural stone, creamy, with visible pits in the face.
Will cleaning get rid of the weeds for good?
No. Cleaning removes what is growing now. Re sanding the joints, and sealing where it fits, is what slows regrowth. Some maintenance is normal here.
Do I have to seal my pavers?
No. It helps lock sand and make future cleaning easier, but plenty of pavers do fine without it.
Can old, faded pavers be brought back?
Usually. A proper clean removes the layer of algae and grime dulling the surface, and sealing can revive color where the material suits it. We will tell you what a realistic result looks like before we start.
💧 Have Travertine You Do Not Want to Gamble On?
Call or text. Owner operated paver and pool deck cleaning for St. Petersburg homes.
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