Pressure Washing Cost Calculator
How much does pressure washing cost? Build your exact job below - pick each surface, its size and condition, add chemical or sealant treatments - and get an itemized pro estimate with regional pricing, a $150 minimum-charge rule, a DIY-vs-pro comparison, and a time estimate. Everything runs in your browser.
Your job
Estimates use a $150 professional minimum charge: if your computed price is lower, it is raised to $150 (the cost of rolling a truck).
Pro rates per square foot
Base rates below are typical pro prices in an average-cost region, before condition and add-ons. "Range" is the published national spread for that surface.
| Surface | Base rate | National range | Protectant add-on | Notes |
|---|---|---|---|---|
| Driveway / concrete flatwork | $0.25 | $0.15-$0.40 | +$0.50/sq ft Concrete sealant | Flat concrete is fastest; oil spots add time. |
| House siding | $0.35 | $0.20-$0.50 | - | Two-story homes cost more (ladder and scaffold time). |
| Wood deck | $0.40 | $0.25-$0.75 | +$1.00/sq ft Stain / waterproofing | Soft wash only on wood - high pressure splinters boards. |
| Roof (soft wash) | $0.45 | $0.30-$0.60 | - | Always soft wash (low pressure + chemicals); never blast shingles. |
| Brick / patio / pavers | $0.30 | $0.15-$0.35 | +$0.50/sq ft Paver sealant | Sand-set pavers may need re-sanding after washing. |
| Fence | $0.32 | $0.20-$0.40 | - | Wood fences need low pressure to avoid furring the grain. |
Condition multipliers
| Condition | Multiplier | What it means |
|---|---|---|
| Light / routine | 1.00x | Dust, pollen, light dirt - a maintenance wash. |
| Moderate | 1.15x | Mold, mildew, algae - needs chemical pre-treatment and dwell time. |
| Heavy | 1.35x | Oil stains, tire marks, years of buildup - slowest passes, most chemical. |
Add-ons
| Add-on | Price | Applies to |
|---|---|---|
| Chemical / soft-wash treatment | +$0.10/sq ft | Any surface (required for roofs) |
| Concrete / paver sealant | +$0.50/sq ft | Driveway, brick/patio |
| Deck stain / waterproofing | +$1.00/sq ft | Wood deck |
DIY vs hiring a pro
Renting a washer is cheaper in cash but costs your weekend: DIY takes about 1.5x as long as a pro, and you value your own time. Enter a job and your hourly value to compare honestly.
DIY assumes a full rental day is 6 working hours. Roofs and two-story siding are pro-only for most homeowners (fall and shingle-damage risk).
National cost benchmarks
| Figure | Value | Source |
|---|---|---|
| Average job cost | ~$300 | HomeAdvisor |
| Typical job range | $100-$650 | HomeAdvisor / Angi |
| Per-sq-ft range | $0.15-$0.50 | Industry consensus |
| Trip minimum | $100-$200 (calculator uses $150) | Industry |
| Washer rental, electric | ~$75/day | Typical big-box rental |
| Washer rental, gas | ~$125/day | Typical big-box rental |
| Detergent / chemicals (DIY) | $15-$30 (calculator uses $25) | Retail |
| Pro cleaning speed, flatwork | ~350 sq ft/hr | Industry rule of thumb |
| Pro cleaning speed, siding/deck/fence | ~250 sq ft/hr | Industry rule of thumb |
| Pro cleaning speed, roof soft wash | ~150 sq ft/hr | Industry rule of thumb |
Worked examples
Driveway: 600 sq ft concrete, light soil
Driveway, 600 sq ft, light condition, no add-ons, Pennsylvania.
House siding: 2,000 sq ft, moderate mold
Siding, 2,000 sq ft, moderate condition (mold/mildew), no add-ons, Pennsylvania.
Deck: 400 sq ft wood, heavy soil + stain
Wood deck, 400 sq ft, heavy condition, stain/waterproofing add-on, Pennsylvania.
Roof: 1,500 sq ft soft wash + chemicals
Roof, 1,500 sq ft, moderate condition, chemical treatment, Pennsylvania.
Combo job: driveway + fence, Texas
Driveway 600 sq ft light + fence 300 sq ft moderate, Texas pricing.
Whole-house combo: driveway + siding + fence
Driveway 600 sq ft light + siding 2,000 sq ft moderate + fence 300 sq ft moderate, Pennsylvania.
What drives pressure washing cost?
Surface type sets the base rate. Flat concrete is cheapest ($0.25/sq ft) because a pro can move fast with a surface cleaner; roofs are priciest ($0.45/sq ft) because soft washing is slow, chemical, and done from a ladder or harness. Condition multiplies the base: light soil is 1.0x, mold and mildew 1.15x, oil stains and years of buildup 1.35x - the difference between a maintenance wash and a restoration job.
Size matters, but not linearly: every pro has a trip minimum (about $100-$200; this calculator uses $150), so a tiny patio costs the same as a medium one. Bundling surfaces into one visit is the cheapest way to lower your effective per-sq-ft price. Region swings totals roughly 0.85x to 1.30x on labor costs alone. Access - steep slopes, delicate landscaping to protect, two-story heights - shows up in quotes as extra time rather than a line item.
Add-ons are where quotes grow: chemical pre-treatment (+$0.10/sq ft), concrete or paver sealant (+$0.50/sq ft), and deck stain/waterproofing (+$1.00/sq ft). Sealant after washing is the add-on most worth taking - it blocks oil stains and freeze-thaw damage for 2-3 years.
DIY vs hiring a pro, honestly
Renting an electric washer (~$75/day) plus detergent (~$25) makes DIY cheaper in cash for most single-surface jobs: our 2,000 sq ft siding example costs about $475.00 DIY versus $805.00 pro, saving $330.00. But DIY takes about 1.5x as long (12 hours here), and the comparison above already charges your time at $25/hr. If your weekend time is worth more, or the job involves a roof, two-story siding, or old wood that a wrong nozzle can destroy, the pro premium buys speed, insurance, and liability you do not have.
Frequently asked questions
How much does pressure washing cost per square foot?
Most pros charge between $0.15 and $0.50 per square foot, with about $0.30 as a national middle. Rates vary by surface: in this calculator a concrete driveway runs $0.25/sq ft, house siding $0.35/sq ft, and a roof soft wash $0.45/sq ft, before condition and regional adjustments.
How much does it cost to pressure wash a driveway?
For a standard 600 sq ft concrete driveway in light condition, this calculator estimates $150.00 (typical range $127.50 to $195.00). Note this equals the $150 professional minimum charge - most companies will not roll a truck for less, so small driveways effectively cost the minimum.
How much does it cost to pressure wash a 2,000 sq ft house?
Washing 2,000 sq ft of siding in moderate condition (some mold and mildew) estimates $805.00, with a typical range of $684.25 to $1,046.50. That includes about 8.0 hours of pro labor. Heavily soiled siding with years of buildup would run about 35 percent more.
Is it cheaper to rent a pressure washer or hire a pro?
Usually DIY is cheaper in dollars but not in time. For the 2,000 sq ft siding job above ($805.00 pro), renting an electric washer costs about $475.00 total - $150.00 rental (2 days), $25.00 detergent, and $300.00 of your own time at $25/hr - saving $330.00. A gas washer rental costs $575.00 (saving $230.00). DIY makes sense for driveways and patios; hire a pro for roofs and two-story siding.
What is the minimum charge for pressure washing?
Most companies have a $100 to $200 trip minimum; this calculator uses $150. If your computed job price falls below it - for example a single small patio - the estimate is raised to $150.00. Bundling surfaces (driveway + walkway + fence) is the easiest way to get past the minimum and lower your effective per-sq-ft price.
Why does a moldy or stained surface cost more to wash?
Condition is a direct multiplier: moderate soiling with mold, mildew, or algae costs 1.15x the base rate, and heavy buildup with oil stains costs 1.35x. The extra covers chemical pre-treatment, dwell time, and slower passes. A 400 sq ft deck in heavy condition with stain and waterproofing estimates $616.00 for this reason.
How much extra is sealant after pressure washing?
Concrete and paver sealant adds about $0.50 per sq ft on top of the wash. A 500 sq ft brick patio washed and sealed estimates $500.00 in California (wash plus sealant, regional pricing included). Sealant is worth it on driveways and patios - it blocks oil stains and freeze-thaw damage for 2 to 3 years.
Does location change how much pressure washing costs?
Yes. Labor rates drive regional differences of roughly 0.85x to 1.30x. Washing 1,500 sq ft of siding estimates $525.00 in Pennsylvania but $630.00 in New York for the identical job, and an 800 sq ft driveway in moderate condition runs $202.40 in Alabama (0.88x). Always get 2 to 3 local quotes - regional multipliers are estimates, not quotes.
How long does pressure washing take?
A pro cleans roughly 350 sq ft per hour on flat concrete, 250 on siding, decks, and fences, and 150 on roofs (soft washing is slow). So a 2,000 sq ft house wash takes about 8 hours, while a 600 sq ft driveway takes under 2 hours. DIY takes about 1.5x longer.
Which surface is the most expensive to pressure wash?
Roofs, at $0.45/sq ft base - soft washing needs specialty chemicals, low pressure, and safety gear. Cheapest is flat concrete at $0.25/sq ft. For example, 1,500 sq ft of roof with chemical treatment estimates $926.25, versus $150.00 for a 600 sq ft driveway.
What is soft washing and when do I need it?
Soft washing uses low pressure plus cleaning chemicals instead of a high-pressure blast. It is required for roofs (high pressure voids shingle warranties and strips granules), and recommended for old wood and painted surfaces. The chemical treatment add-on is $0.10 per sq ft in this calculator.
I want to buy a pressure washer, not hire someone. Can this help?
This calculator estimates what hiring a pro costs. If you want to buy your own machine, use our pressure washer size calculator instead - it recommends the right PSI, GPM, and cleaning units for your driveway, deck, siding, or car so you do not over- or under-buy.
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Disclaimer: estimates are planning figures built from published national data and industry rate ranges, not quotes. Actual prices vary by contractor, equipment, access, and local labor. Always get 2-3 written quotes before hiring.
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