Asphalt and concrete look about the same from the street, but they're completely different when it comes to pressure washing. Use the wrong PSI on asphalt and you strip the binder right off the surface -- permanently. Use too little on concrete and you're just wasting time. This guide breaks down the right settings for each surface and what to charge for both in 2026.

The Quick Answer

Here are the key differences between washing asphalt vs concrete driveways:

Concrete PSI: 2,500-3,000 PSI, 25-degree (green) nozzle, 12-18 inches from surface
Asphalt PSI: 1,000-1,500 PSI max, 25-40 degree nozzle, 8-12 inches from surface
Concrete pricing: $0.20-$0.40 per sq ft (minimum $100-$150)
Asphalt pricing: $0.12-$0.20 per sq ft (minimum $100)
Nozzles to avoid on asphalt: Red (0-degree) and yellow (15-degree) -- both strip binder in one pass

The method and price vary by surface. Getting either one wrong means property damage, angry customers, or lost margins. Here's what you need to know.

Why Asphalt Is Fragile

Asphalt is a mix of sand, gravel, and rock held together by a petroleum-based material called asphalt oil. That binder gives asphalt its dark color and flexibility -- but it's also what makes it vulnerable to high-pressure water.

Too much PSI strips the binder right off the aggregate. Once the binder is gone, the surface starts to show loose stones, cracks spread faster, and the driveway deteriorates years ahead of schedule. The homeowner won't notice it immediately. But they'll see it when the surface starts crumbling 3-5 years before it should.

Concrete is different. It's dense, cured stone -- it handles higher pressure without damage. That's why the PSI settings are so different between the two surfaces.

Pressure Washing Concrete Driveways: PSI and Technique

Concrete is the more forgiving of the two surfaces. For most residential concrete driveways, use 2,500-3,000 PSI with a 25-degree (green) nozzle. That's enough power to break up embedded dirt, oil stains, and algae without etching the surface.

Use a Surface Cleaner

For any driveway over 300 sq ft, a surface cleaner attachment is worth every penny. It has two rotating spray arms underneath that distribute pressure evenly across the whole surface. No stripes, no uneven cleaning patterns, and faster coverage than a single wand pass.

Move the surface cleaner at a steady walking pace -- roughly 3-4 feet per minute. Go too fast and you won't lift embedded dirt. Stop for even a few seconds in one spot and you risk etching the concrete permanently.

Distance and Nozzles

Keep the wand 12-18 inches off the surface. Closer than that increases damage risk. For stubborn stains you can drop to a 15-degree (yellow) nozzle for more concentrated power -- but keep moving and don't hold it in one spot. Avoid the red 0-degree nozzle on concrete entirely. It creates permanent gouges.

Pre-treat any oil stains with a concrete degreaser before washing. Let it dwell 5-10 minutes, then wash. Pressure alone won't remove heavy oil from concrete without a chemical assist. For more on that, see our guide to removing oil stains from concrete.

Pressure Washing Asphalt Driveways: PSI and Technique

For asphalt, keep PSI at 1,000-1,500. Some contractors go up to 2,000 PSI on very dirty or commercial asphalt, but that should be the hard ceiling. Use a 25-40 degree nozzle. Work 8-12 inches off the surface with a slight angle so debris pushes ahead of you.

Nozzles to Never Use on Asphalt

Never use a 0-degree (red) or 15-degree (yellow) nozzle on asphalt. The focused spray will carve grooves and strip binder in a single pass. Once that happens, the damage is done. Stick with the 25 or 40 degree tips and keep moving.

Timing and Conditions

A few things to check before washing any asphalt driveway:

Recently sealed? Don't wash asphalt that was sealed in the last 90 days. The sealer hasn't fully cured and water pressure will damage it.
Visible cracks or exposed aggregate? High pressure will accelerate the damage. Let the customer know before you start -- this covers you if they complain later.
Temperature: Don't wash asphalt in freezing temps. Water sitting in cracks can freeze and expand, making the damage worse.

Pricing: Asphalt vs Concrete

Concrete typically commands higher per-square-foot rates because it handles heavier equipment and takes more chemical work on stained surfaces. Asphalt is priced lower because you're using lower pressure and less intensity.

Concrete driveways: $0.20-$0.40 per sq ft
Asphalt driveways: $0.12-$0.20 per sq ft
Minimum charge (both surfaces): $100-$150

Here's what the math looks like on real jobs:

Small 2-car concrete driveway (400 sq ft): 400 x $0.25 = $100 -- right at minimum
Large concrete driveway (900 sq ft): 900 x $0.28 = $252
Small asphalt driveway (400 sq ft): 400 x $0.15 = $60 -- below minimum, charge $100
Large asphalt driveway (900 sq ft): 900 x $0.18 = $162

Don't undercut your minimum just because the asphalt rate is lower. Your drive time, setup, and cleanup cost the same whether it's a 400 sq ft driveway or a 900 sq ft one.

The Sealing Upsell

Right after a pressure wash is the ideal time to pitch sealing. The surface is clean and open, and the customer is already thinking about maintenance.

For concrete, you can add sealing yourself. Concrete sealers run $0.10-$0.30 per sq ft for the product, and you can charge $0.10-$0.30 per sq ft in labor on top of that. A 900 sq ft driveway wash-and-seal package can jump from $252 to $450 or more -- a 75% bump on the same job.

For asphalt, sealing is typically done with emulsion-based asphalt sealer and requires different equipment. If you don't offer it, partner with a local paving contractor to subcontract the work and take a referral fee. Either way, don't leave that money on the table. For more detail on concrete sealing options, check out our guide to sealing concrete after pressure washing.

Bottom Line

Concrete is faster to clean, handles more pressure, and typically earns more per square foot. Asphalt needs a lighter touch, lower PSI, and a different nozzle setup -- use the wrong settings and you're looking at a liability problem, not just a quality complaint. Know which surface you're washing before you start and price accordingly.

If you want customers to get instant quotes for driveway washing directly on your website, try QuoteSnap for free. You set your per-square-foot rates for each surface type and customers get a price in 30 seconds -- without a phone call.

Pressure Washing Asphalt vs Concrete: Pricing and Technique Guide (2026)