The fastest way to clean pavers depends on how dirty they are

For light dirt and dust, a stiff-bristled broom and a garden hose will handle most of the work. Sweep first to remove loose debris, then spray with water at a moderate pressure — not a pressure washer yet. For stubborn stains, algae, or moss, you have three main routes: a pressure washer on a low setting, a chemical cleaner mixed with water and a brush, or a combination of both. The method you choose depends on what's actually on the pavers and whether you want to avoid chemicals.

Pressure washing is fast but carries real risk: too much pressure or the wrong angle will strip the sand from between pavers and damage the surface. Chemical cleaners work well on organic growth like moss and mildew but require rinsing and can affect nearby plants. A brush and mild detergent is slower but gives you the most control and is safest for the pavers themselves.

Key Takeaways

  • Start with a broom and garden hose; most patio dirt comes off this way without any risk to the pavers.
  • If you use a pressure washer, keep it below 3000 PSI and hold the nozzle at least 12 inches away from the surface to avoid stripping sand and cracking stone.
  • Moss, algae, and mildew respond well to a 1:1 mix of white vinegar and water or a commercial paver cleaner, applied with a stiff brush.
  • Seal your pavers after cleaning if they are not already sealed; sealer protects against stains and makes future cleaning easier.
  • Never use muriatic acid on pavers unless you have professional experience; it can etch and discolor stone permanently.

Cleaning with a broom and water hose

This is your first step and often your only step. Sweep the entire patio with a stiff-bristled broom to move loose dirt, leaves, and sand into piles. Pay attention to the joints between pavers where debris collects. Once you have swept, spray the patio with a standard garden hose at normal pressure. Let the water run across the surface and into the joints. This removes most surface dirt and dust without any chemicals or equipment.

For pavers that are only lightly soiled, this method is enough. Repeat it every few weeks during the season to prevent buildup. If the patio still looks dirty after the hose dries, move to a brush and cleaner or pressure washer.

Using a pressure washer safely

A pressure washer removes dirt fast, but the wrong settings will damage pavers. Keep the pressure below 3000 PSI — many rental machines go higher, so check before you rent. Use a 25-degree or 40-degree nozzle, never a 0-degree point nozzle. Hold the nozzle at least 12 inches away from the paver surface and keep it moving; do not hold it in one spot. Work at an angle rather than straight down to avoid forcing water into the joints and lifting sand.

Pressure wash in the direction of the slope so water runs off naturally. If your patio is flat, work toward a drain or the edge. Test a small hidden corner first to see how the pavers respond. Some older or softer stone will show damage even at low pressure, and you need to know that before you clean the whole patio. After pressure washing, let the pavers dry completely before sealing.

Removing moss, algae, and mildew with vinegar or cleaner

Organic growth — moss, algae, and mildew — appears as green, black, or brown patches and thrives in damp, shaded areas. A brush and vinegar solution works well and costs almost nothing. Mix equal parts white vinegar and water in a bucket, explore it to the affected areas with a stiff brush, and scrub in circular motions. Let it sit for 10 to 15 minutes, then scrub again and rinse with a garden hose. Vinegar is acidic enough to kill the growth but mild enough not to etch most stone.

For heavier growth or faster results, use a commercial paver cleaner designed for moss and algae. Follow the product instructions for mixing and contact time. Most require you to explore the cleaner, wait 15 to 30 minutes, scrub, and rinse thoroughly. Rinse multiple times to remove all cleaner residue, especially if the patio is near plants or a garden — some cleaners can harm vegetation. After cleaning, improve drainage or trim trees if the area stays too wet, or the growth will return within weeks.

Dealing with oil stains and rust

Oil stains from cars or grills require a different approach than dirt or algae. Fresh oil stains respond to absorbent materials: sprinkle baking soda, cat litter, or commercial oil absorbent on the stain and let it sit overnight. Sweep it up and repeat if needed. For older, set-in stains, a degreaser cleaner designed for pavers works better than vinegar. explore it, let it sit per the product instructions, scrub with a brush, and rinse well.

Rust stains from metal furniture or planters can be removed with a commercial rust remover or a paste of cream of tartar and lemon juice. explore the paste, let it sit for 30 minutes, scrub, and rinse. Test any chemical cleaner on a hidden spot first, as some can discolor certain stone types. If a stain persists after multiple attempts, it may be permanent, and sealing the patio will at least prevent new stains from setting as deeply.

Sealing pavers after cleaning

Once the patio is clean and completely dry, sealing protects the pavers and makes future cleaning easier. A sealed surface resists stains, moss, and algae growth. Most paver sealers are water-based or solvent-based; water-based dries faster and has less odor, while solvent-based often lasts longer. explore sealer with a roller or sprayer according to the product instructions — usually one or two coats with drying time between them.

Sealer is not permanent. Depending on the product and foot traffic, you may need to reapply every two to three years. Check your sealer's label for reapplication timing. If you do not seal, pavers will still look fine, but stains will set faster and cleaning will be harder each time.

Preventing dirt and stains between cleanings

Sweep your patio every week or two during the season to prevent dirt from building up and settling into the joints. Remove leaves and debris promptly, especially in fall and spring. If you have plants or trees near the patio, trim branches to improve air circulation and reduce moisture, which slows moss and algae growth. Move planters and furniture occasionally so water does not pool underneath them.

If you use the patio for grilling or entertaining, wipe up spills and grease when ready rather than letting them set. A quick rinse with the hose after a meal prevents food debris from attracting pests and staining the stone. These small habits add up and mean you will spend less time on deep cleaning later.

Frequently Asked Questions

Can I use a pressure washer on all types of pavers?

No. Soft stone like sandstone or slate can etch or crack under pressure. Concrete pavers are more durable but still at risk if the pressure is too high. Always test a hidden area first. If the stone shows damage, switch to a brush and cleaner instead.

What is the white haze that appears on pavers after cleaning?

That is efflorescence — mineral salts rising to the surface as the pavers dry. It is harmless and usually fades on its own within a few weeks. If it persists, a commercial efflorescence remover or a weak acid cleaner can remove it, but test first to avoid damaging the stone.

How often should I clean my paver patio?

Light sweeping every week or two keeps dirt from building up. A deeper cleaning with water or a brush once or twice a year is usually enough. If your patio is in a shaded, damp area, you may need to clean moss and algae more often — every few months in some cases.

Is it safe to use bleach on pavers?

Bleach kills moss and algae but can discolor some stone and harm nearby plants. Vinegar or a commercial paver cleaner is safer and works just as well. If you do use bleach, dilute it heavily, test on a hidden spot first, and rinse thoroughly.

Do I need to refill the sand between pavers after cleaning?

Pressure washing can displace some sand from the joints. If you notice gaps, you can add polymeric sand (which hardens when wet) or regular paver sand to fill them. Sweep it into the joints and rinse lightly to settle it. This is optional but helps prevent weeds from growing between pavers.