How much does pressure washing cost?

DIY: electric pressure washer $100-$400 (a one-time purchase that pays for itself vs. hiring). Rental: $50-$100/day. Professional: house exterior $200-$600, driveway (500 sq ft) $100-$200, deck (300 sq ft) $100-$250, whole property (house + driveway + walkways) $300-$800. Per square foot: $0.10-$0.25 for driveways/concrete, $0.15-$0.35 for siding/house. Pricing depends on: surface type, amount of staining, accessibility, and your location.

Can pressure washing damage surfaces?

Yes, if used incorrectly. Too much pressure on wood: fuzzes the grain, gouges, and splinters the surface. Use 1,500-2,000 PSI max on wood with a 25-degree nozzle. Too much pressure on vinyl siding: cracks, dents, or forces water behind the siding. Use 1,300-1,800 PSI and spray at a downward angle. Too close: even moderate pressure can damage surfaces if the nozzle is too close. Keep 12-18 inches away for most surfaces. Windows: never use a zero-degree (red) nozzle near windows (it can crack or break glass). Paint: high pressure removes loose paint (which can be intentional for paint prep, but damaging if you do not want to strip the paint). Start with the widest nozzle and lowest pressure, then increase as needed.

What PSI do I need for a driveway?

2,500-3,500 PSI for concrete driveways. Use a 15-degree (yellow) or 25-degree (green) nozzle. For best results: use a surface cleaner attachment ($50-$100) — it provides even, streak-free cleaning much faster than a wand. For oil stains: apply a degreaser first, let it dwell 5-10 minutes, then pressure wash. An electric pressure washer (1,300-2,300 PSI): can clean a lightly soiled concrete driveway, but will struggle with heavy stains and embedded grime. For serious concrete cleaning: a gas pressure washer (2,500+ PSI) is recommended.

How often should I pressure wash my house?

House exterior (siding): once per year (spring is ideal). Driveway and walkways: once per year. Deck: once per year (before staining or sealing). Fence: every 1-2 years. Roof: do NOT pressure wash (high pressure damages shingles). Use a soft wash method (low pressure + chemical solution) for roofs. Regular pressure washing prevents mold, mildew, algae, and dirt buildup. It also extends the life of paint, stain, and siding by removing damaging organisms.

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Pressure Washing Guide: Equipment, Techniques & Cost

Lumberama Editorial Team, Exterior Cleaning & Maintenance Specialists Jul 21, 2026 11 min read

Pressure Washing vs Power Washing

Pressure washing uses high-pressure water at ambient temperature. Power washing uses high-pressure hot water. For homeowners: the terms are used interchangeably. Most residential pressure washers use cold water (and are technically pressure washers). Hot water is mainly used commercially for grease and oil removal.

Equipment

Electric pressure washers: 1,300-2,300 PSI. Best for: light-duty tasks (cars, patio furniture, small decks and patios, siding). Quiet, lightweight, no exhaust. No maintenance (no engine oil). Cost: $100-$400.

Gas pressure washers: 2,500-4,000+ PSI. Best for: heavy-duty tasks (driveways, concrete, large decks, heavy staining, paint prep). More powerful but louder and heavier. Require engine maintenance. Cost: $250-$800.

PSI guide: 1,300-1,800 PSI: cars, windows, patio furniture. 2,000-2,800 PSI: decks, fences, siding, light concrete. 3,000-4,000 PSI: concrete driveways, heavy staining, paint stripping. GPM (gallons per minute): 1.5-2.5 GPM is typical. Higher GPM = faster cleaning (more water moves more dirt).

Nozzle Tips

Pressure washers use interchangeable nozzle tips that control the spray pattern and pressure:

Red (0 degrees): A pencil-thin jet. Maximum pressure. For: removing tough stains and paint from hard surfaces. CAUTION: can damage wood, siding, and soft materials. Use with extreme care.

Yellow (15 degrees): Narrow fan. Heavy cleaning. For: concrete, brick, and hard surfaces with tough stains.

Green (25 degrees): Medium fan. General cleaning. For: decks, fences, siding, and most residential tasks. The most commonly used nozzle.

White (40 degrees): Wide fan. Light cleaning. For: windows, cars, and delicate surfaces.

Black (65 degrees/soap): Very wide, low pressure. For: applying detergent (the low pressure allows soap to dwell on the surface).

Techniques by Surface

Concrete (driveways and patios): Use 2,500-3,500 PSI with a 15 or 25-degree nozzle. Apply degreaser for oil stains (let dwell 5-10 minutes). Work in overlapping passes. A surface cleaner attachment ($50-$100) provides faster, more even results than a wand.

Wood decks and fences: Use 1,500-2,000 PSI with a 25 or 40-degree nozzle. Too much pressure damages wood (fuzzing the grain, gouging). Keep the nozzle 12-18 inches from the surface. Spray with the grain (not across it). Apply a wood cleaner/brightener.

Vinyl or aluminum siding: Use 1,300-1,800 PSI with a 25 or 40-degree nozzle. Spray at a downward angle (never spray upward behind siding). Start from the bottom and work up (prevents streaking). Apply a siding wash solution.

Brick: Use 2,000-3,000 PSI. Mortar is softer than brick — avoid concentrating the spray on mortar joints.