How-To Guide · Pavers, Brick and Patios · South Florida

Pressure Washing Pavers, Brick and Patios: What Is Safe and What to Seal

How to clean pavers, brick and patio surfaces safely, protect the joint sand and mortar, and know when sanding and sealing make the result last.

  • By the Fresh N Kleen team
  • 6 min read
  • Sunrise, FL
Technician cleaning a paver patio with a surface cleaner beside a pool
Quick answer

Pavers, brick and patios can be pressure washed, but they need moderate pressure, a wide tip or a surface cleaner, and care around the joints. High pressure blows out the sand between pavers and erodes mortar on brick, which lets weeds and ants in and loosens the surface. After washing, re-sand paver joints with polymeric sand and consider a sealer to lock in color and slow algae. Wait until the surface is fully dry before sealing.

Pavers and pool decks are the surfaces where the wrong wash costs the most to fix.
Moderate PSIPavers and brick
Re-sandAfter washing pavers
SealTo protect the finish

Paver patios are one of the nicest things about a Florida backyard, and one of the fastest to turn green. Brick walkways go dark, pool decks go slick, and the joints fill with moss and weeds. We are asked to clean these surfaces almost every week around Broward and Palm Beach counties.

This guide covers how to pressure wash pavers, brick and patios without damaging them, why the joint sand matters, when to seal, and what pool deck surfaces need. If you would like the work done for you, see our residential team.

Pavers, Brick, Concrete Patio: Different Surfaces

How each patio surface behaves
SurfacePressure rangeMain riskKey tip
Concrete paversModerate; wide fan or surface cleanerBlowing out joint sand, etchingRe-sand after washing
Brick (walkway or house)Low to moderateEroded mortar, spallingSoft mortar joints need a wide tip
Poured concrete patioModerate to high with a surface cleanerZebra stripes, etchingUse a rotary tool
Travertine and natural stoneLowPitting, etching, stainsUse stone-safe cleaners only
Pool deck (textured concrete)Moderate with surface cleanerDamaging the textureRinse chemicals away from the pool

If you are unsure what you have, test a hidden corner with a wide tip first. Natural stone and older brick in particular can be softer than they look.

Close view of paver stones with dirty joints on one side and clean joints on the other

How to Pressure Wash Pavers

STEP 1

Sweep and prepare

Clear furniture, sweep debris and rinse nearby plants.

STEP 2

Apply cleaner

Use a paver-safe cleaner on algae and stains, and let it dwell.

STEP 3

Wash evenly

Use a surface cleaner or a 25 to 40-degree tip, keeping it level and moving.

STEP 4

Re-sand and seal

Let the surface dry, refill the joints with polymeric sand and consider a sealer.

Why the joint sand matters

The narrow gaps between pavers are filled with fine sand that locks them together and stops weeds and insects. A concentrated jet blasts that sand out in seconds, and the pavers begin to shift. That is why a paver wash is often paired with re-sanding, and why the pressure setting matters so much.

Efflorescence and rust

White powdery patches are efflorescence, mineral salts moving to the surface. They need a mild acidic cleaner and dry brushing. Orange stains are typically rust from irrigation, and they need a rust remover. See our guide on removing paint, rust and oil.

Pressure Washing Brick

Brick is durable, but the mortar between bricks is not. Older mortar is soft, and high pressure erodes it, which leads to loose bricks and water getting into walls. Use a low to moderate pressure with a wide tip, work along the joints rather than into them, and avoid narrow tips. For painted brick or a brick house, soft washing is often better, as we explain in our house washing guide.

Rule of thumb: if a fingernail can scrape sand from the mortar, the mortar is already weak. Wash at very low pressure and consider repointing.

Pool Decks, Lanais and Patios

In Florida, pool decks and lanais are where algae grows fastest, and where it is most dangerous, because a green film turns concrete into an ice rink. A regular wash improves safety as much as appearance. Use a surface cleaner for the flat areas, treat algae with a suitable cleaner, and rinse thoroughly so no chemical goes into the pool. Do not use aggressive tips on textured or coated decks, or you will wear away the grip surface.

Clean textured pool deck beside a screened pool enclosure

Should You Seal After Washing?

Sealing is optional, but it is often the difference between a patio that stays fresh for a year and one that greens up again in weeks. A sealer helps prevent stains, holds joint sand in place and can enhance color. The surface must be fully dry, and sealer should be applied in dry weather. We explain the timing in how long to wait after pressure washing before sealing or painting.

Mistakes to Avoid

Do this

  • Use a surface cleaner or a 25 to 40-degree nozzle
  • Treat algae with a suitable cleaner first
  • Re-sand joints after washing pavers
  • Test a hidden area on natural stone or old brick
  • Wait for the surface to dry before sealing

Avoid this

  • Using a narrow tip on joints
  • Washing softer stone with high pressure
  • Leaving joints empty after a wash
  • Sealing wet or damp pavers
  • Letting chemicals run into the pool

When to Hire a Professional

A small brick walkway is a reasonable DIY job. A large paver patio, a pool deck or any sanding-and-sealing project is worth handing to a professional. We control pressure, treat stains, re-sand joints and seal, and finish in a single visit. For a sense of pricing factors, see our pressure washing cost guide, and ask for a free quote.

Final Thoughts

Patios and pavers look best when they are cleaned gently, re-sanded and sealed. The most common regrets we hear are blown-out joints and a shiny sealer put down over damp stone. Take it slower and you will avoid both.

Frequently Asked Questions

Can you pressure wash pavers?
Yes, with a wide tip or a surface cleaner at moderate pressure. High pressure blows sand out of the joints, so plan to re-sand after washing.
Do I need to re-sand pavers after pressure washing?
Usually yes. If the joint sand has been washed out, refill the joints with polymeric sand so the pavers stay locked in and weeds stay out.
Can you pressure wash brick?
Yes, at low to moderate pressure with a wide nozzle. Avoid narrow tips and high pressure, which erode mortar and can spall the brick face.
How do you clean a concrete patio without a pressure washer?
Sweep, apply a concrete cleaner or oxygen-based cleaner, scrub with a stiff brush and rinse with a garden hose. It is slower and works best on light staining.
Can I pressure wash my pool deck?
Yes, with a surface cleaner and moderate pressure. Avoid narrow tips that wear the texture and keep cleaning solutions out of the pool.
How long after washing can I seal pavers?
Wait until they are fully dry, often 24 to 48 hours in dry weather and longer when it is humid.
Why do my pavers turn green so fast in Florida?
Heat, humidity, rain and shade create ideal conditions for algae. Regular cleaning and sealing slow it down.

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We restore driveways, roofs, patios, pool decks and commercial properties across South Florida from our base in Sunrise, FL. Free, no-obligation quotes: call (954) 405-6642 or request a quote online.

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