Pressure washing a house exterior costs between $150 and $750 for most homes, with the national average landing around $300 for a typical single-family home. The spread is wide because square footage, story count, siding material, and surface condition all pull the number in different directions. This guide breaks the cost down by home size, walks through the per-square-foot math, and explains exactly what pushes a job toward the high end.

How much does it cost to pressure wash a house? Most homeowners pay $0.08 to $0.35 per square foot of exterior surface area. A small single-story home with roughly 1,000 square feet of exterior surface typically runs $150 to $300. An average two-story home with 1,800 to 2,200 square feet of exterior surface usually falls between $280 and $500. Large homes above 3,000 square feet of exterior surface can reach $500 to $750 or more depending on complexity.

If you want professional results without renting equipment or spending a weekend on a ladder, professional power washing services through Ace Handyman Services are available at any stage, whether you want the full job handled or just the second-story work done safely while you tackle the ground level yourself.

Average Cost to Pressure Wash a House

The numbers below represent typical ranges across the country. Prices vary by region, season, and the condition of the surface. Use these as planning benchmarks, not guaranteed quotes.

Small Single-Story 1,200 Sq Ft Floor Plan

  • Estimated Exterior Sq Ft: 900-1,100 sq ft exterior
  • Typical Cost Range: $150-$300

Average Two-Story 2,000 Sq Ft Floor Plan

  • Estimated Exterior Sq Ft: 1,800-2,200 sq ft exterior
  • Typical Cost Range: $280-$500

Large Two-Story 3,000 Sq Ft Floor Plan

  • Estimated Exterior Sq Ft: 2,600-3,200 sq ft exterior
  • Typical Cost Range: $450-$750

Large home with complex features

  • Estimated Exterior Sq Ft: 3,500+ sq ft exterior
  • Typical Cost Range: $650-$1,000+

Labor typically accounts for the majority of the total. Equipment, detergent, and water cost are usually bundled into a pro's price. When you DIY, you invert that split: labor is free but equipment rental runs $50 to $100 per day for a consumer-grade machine, and a higher-output gas unit rents for $80 to $150 per day from most hardware stores.

Cost by Home Size

Small Single-Story Home

A ranch-style or small craftsman with a 1,000 to 1,400 square foot floor plan typically has 900 to 1,200 square feet of actual exterior wall surface once you subtract windows, doors, and the roofline overhang. At $0.10 to $0.25 per square foot for a straightforward vinyl or fiber cement exterior in average condition, the job lands between $150 and $300 for professional labor.

Single-story work is the most efficient to quote and execute. No extension ladders, no lift equipment, and lower insurance risk for a pro, which keeps the per-square-foot rate at the lower end of the national range. DIY is genuinely practical at this scale, too. A homeowner comfortable with a pressure washer can complete a small single-story in three to five hours with a rented machine and a bottle of house-wash concentrate.

Average Two-Story Home

The average American home sits around 2,000 to 2,200 square feet of living space. When two stories are stacked, the exterior wall surface typically runs 1,800 to 2,400 square feet depending on roof pitch and how much of the gable ends are exposed siding versus trim. Professional pricing for this category commonly runs $280 to $500.

The second story is where most of the cost premium lives. Pros either run extension wands from ground level or stage ladders, both of which slow production time and add safety overhead. That extra time shows up in the invoice. If a contractor quotes a two-story job at the same per-square-foot rate as a single-story, look carefully at whether they plan to reach the upper sections at all.

Large Home

Homes above 3,000 square feet of floor plan with two or more stories can generate 2,800 to 3,500 square feet or more of exterior surface area. Add a wraparound porch, dormers, a three-car garage face, or intricate trim details and the time investment climbs quickly. Most pros price large homes at $450 to $750 for a standard wash and higher when surface condition adds dwell time for mold or heavy oxidation.

At this scale, DIY becomes a multi-day project. A single consumer pressure washer cannot keep up with a large surface area before fatigue and water supply become limiting factors. Rental of a high-output gas unit is worth the upgrade here.

How to Estimate the Cost for Your Home

Figuring Exterior Square Footage

Your home's floor-plan square footage is not the same as the exterior surface area you need to wash. Here is the straightforward way to calculate it.

Measure the perimeter of your home at ground level. Multiply that perimeter by the wall height from foundation to roofline. For a two-story home, wall height typically runs 18 to 22 feet depending on ceiling heights and the depth of the floor assembly between stories. Subtract the approximate area of windows and doors (a rough estimate of 15 to 20 percent of the gross wall area works for most homes). What remains is your washer-able exterior surface.

Worked example: A home with a 160-foot perimeter and a 20-foot wall height gives 3,200 gross square feet. Subtract 15 percent for openings and you land at roughly 2,720 square feet. At $0.15 per square foot, that job runs about $408 for labor.

Per-Square-Foot Math

Per-square-foot rates vary with region and market conditions, but the ranges below reflect current national pricing from published industry data.

  • Basic wash, good condition, single story: $0.08-$0.15 per sq ft
  • Standard wash, average condition, two story: $0.12-$0.25 per sq ft
  • Heavy mold, mildew, or oxidation: $0.20-$0.35 per sq ft
  • Soft wash (low pressure with chemical dwell): add $0.05-$0.10 per sq ft

Some contractors quote a flat rate per linear foot of home perimeter instead. That method typically lands in the $1.50 to $3.50 per linear foot range and produces similar totals when you run the math against the per-square-foot approach.

What Adds to the Price

Second Stories and Hard-to-Reach Areas

Height adds cost in two ways: it slows the work and it increases the risk premium a contractor builds into their rate. Reaching a 20-foot soffit line requires either a long extension wand (which sacrifices some pressure at the nozzle) or a ladder, which means stop-and-move-and-reset time on every section. Either method cuts productivity relative to ground-level work. Most contractors add a flat $50 to $150 premium for two-story homes or increase their per-square-foot rate by $0.05 to $0.10 above the ground-floor rate for upper-story surfaces.

Hard-to-reach features add similar premiums: covered porches with low clearance, ornamental trim, bay windows that project outward, and soffits under deep overhangs all require slowing down and repositioning.

Siding Material and Method

Not every siding type tolerates the same water pressure. Using the wrong PSI setting on the wrong material is how siding gets cracked, paint gets stripped prematurely, and water gets forced behind the cladding into the wall assembly. Knowing your siding material helps you understand which method your contractor should use and why it affects the price.

  • Vinyl siding: Generally tolerates pressure washing at 1,200-1,600 PSI with a 25- or 40-degree nozzle. Aim downward, never up into the lap joints. Straightforward and common.
  • Brick and concrete block: High-pressure washing (2,500-3,000 PSI) is appropriate for sound brick. Older, softer brick or brick with failing mortar needs a gentler approach and an experienced hand.
  • Wood siding and cedar shake: Low pressure (600-800 PSI) with a soft-washing detergent is standard. Too much pressure raises wood grain and drives water into joints.
  • Stucco: Requires care. High pressure can fracture the finish coat. Most professionals use soft wash or low-pressure rinse with longer chemical dwell time.
  • Fiber cement (HardiePlank and similar): Moderate pressure is fine. The bigger concern is directing spray upward under lap joints, which can damage paint.

Surface Condition

A home with green algae, black mold streaks, oxidized paint chalk, or heavy organic buildup takes longer to clean. Organic growth typically requires a detergent pre-treatment with a dwell time of 10 to 20 minutes before rinsing, which adds labor time to every section. Some contractors charge a flat additional fee for heavy contamination ($50 to $150 on top of the base price); others fold it into a higher per-square-foot rate. Either way, expect to pay more on a house that has not been washed in three or more years compared to one maintained annually.

Pressure Washing vs Soft Washing Your Siding

Should you pressure wash or soft wash vinyl siding? For most residential siding, soft washing produces better results with less risk. Soft washing uses a lower-pressure spray (typically under 500 PSI) combined with a biodegradable detergent that kills algae, mold, and mildew at the source rather than blasting it off mechanically. The cleaning lasts longer because the biological matter is dead rather than just displaced.

Pressure washing at full force is well-suited to hard surfaces: concrete driveways, brick foundations, and masonry retaining walls. When a contractor says they pressure wash everything at 3,000 PSI regardless of surface, that is worth a follow-up question. A professional will adjust PSI and nozzle angle to match the material.

Soft wash jobs typically cost $0.05 to $0.10 more per square foot than a standard pressure wash because of the added chemical cost and dwell time. On a 2,000-square-foot exterior, that is a $100 to $200 difference, and it is usually worth it for painted or delicate surfaces.

DIY vs Hiring a Pro

Is it worth paying someone to pressure wash your house? For a single-story home in average condition, DIY is genuinely cost-effective. Equipment rental runs $50 to $150 for the day, house-wash detergent costs $15 to $30 at most hardware stores, and the job takes a fit, methodical person about half a day. Total DIY cost: $75 to $200. Compare that to a professional quote of $150 to $300 for the same home, and the savings are real but not dramatic once you account for your time.

For two-story homes, the calculus changes. Working at height with a pressure washer wand is fatiguing and carries a fall risk most homeowners underestimate. Extension wands can whip under pressure, and repositioning a ladder on wet grass while holding equipment is genuinely hazardous. The pro premium on a two-story job is largely paying for experience working safely at height, proper equipment, and insurance coverage if something goes wrong.

Also worth noting: a consumer electric pressure washer typically outputs 1,200 to 1,800 PSI. A professional gas unit runs 2,500 to 4,000 PSI with a higher GPM flow rate, which means the job moves faster and rinses cleaner. The equipment gap is real.

When siding power washing is handled by a professional crew, you also avoid the equipment logistics entirely: no rental pickup, no return trip, no figuring out why the pressure dropped at the nozzle halfway through the job.

Washing Before a Paint Job

How much does it cost to wash a house before painting? Pre-paint washing typically costs the same as a standard house wash, $150 to $500 depending on size, though some painters include surface prep washing in their project scope. When it is a separate service, the wash is often combined with a light scrub of peeling or chalky areas and may include a mildewcide treatment to prevent early adhesion failure under the new paint.

Skipping the pre-paint wash is a common mistake that shows up quickly. Dirt, oxidation, and mildew prevent proper paint adhesion, and the result is early peeling or bubbling within one to two seasons. If you are investing in an exterior paint job, the house wash is not an optional add-on. It is part of proper surface preparation.

Timing matters too. The washed surface should dry completely before painting, which typically means 24 to 48 hours in warm weather with low humidity. Plan the wash at least two days before paint day, more if your climate is cool or humid.

Getting an Accurate Quote

To get a useful quote from a contractor, come prepared with a few pieces of information:

  • Approximate floor plan square footage and number of stories
  • Siding material (vinyl, brick, wood, stucco, fiber cement, or a mix)
  • Approximate last wash date and visible surface condition (algae, mold, heavy oxidation, or clean)
  • Any specific features that may add complexity (wraparound porch, dormers, attached garage, steep lot)
  • Whether you need soft wash, standard pressure wash, or a pre-paint prep wash

A contractor who asks you these questions before quoting is doing their job. One who quotes a flat price without asking about story count or siding type is either very experienced with your neighborhood's housing stock or skipping a step they should not skip.

Get at least two quotes for any job above $300. Rates vary meaningfully between markets and between operators within the same market. A quote that is 40 percent below the others is worth a follow-up question about what is included.

Why Homeowners Bring in Ace Handyman Services

Plenty of homeowners start a house wash themselves and decide partway through that the second-story work, the stubborn algae sections, or the sheer time commitment is more than they budgeted for. Others plan from the start to have it done right without the logistics of renting, hauling, and returning equipment. Either way, here is what the professional option looks like through Ace Handyman Services.

  • No equipment to source, rent, return, or troubleshoot. Commercial-grade gas units, appropriate nozzle sets, and house-wash detergent arrive with the craftsman.
  • One-year labor warranty. If something was missed or a siding joint was compromised, it gets addressed.
  • Background-checked, multi-skilled W-2 craftsmen, not gig-economy contractors. The person who shows up is vetted, insured, and employed by the franchise.
  • Predictable weekday timeline. Most house wash jobs complete in one visit. No weekends lost to a project that dragged past sunset.
  • Right method for your siding material. Vinyl, wood, stucco, brick, and fiber cement each require a different approach. Our craftsmen adjust PSI, nozzle angle, and detergent accordingly.
  • Second-story work done safely. Height is where DIY house washing carries real fall risk. Leave the ladder work to someone with the right equipment and the experience to use it.
  • Cleanup included. Overspray, detergent runoff, and loosened debris get cleared before the crew leaves.

If you want an accurate estimate for washing your home exterior, reach out to your local Ace Handyman Services office and a craftsman will assess your home's size, siding type, and condition before putting a number on it.

Frequently Asked Questions

How much does it cost to pressure wash a house per square foot?

Professional rates typically run $0.08 to $0.35 per square foot of exterior surface area. Simple single-story work in good condition lands at the low end. Two-story homes, heavy organic buildup, or soft-wash requirements push toward the high end. Most average homes fall between $0.12 and $0.25 per square foot for a standard wash.

How much does it cost to pressure wash a two-story house?

A two-story home with 1,800 to 2,400 square feet of exterior surface typically costs $280 to $500 for professional washing. The second-story premium reflects the additional time, equipment, and safety requirements of working at height. Expect quotes to run $50 to $150 higher than a comparable single-story home.

Does house size change the pressure washing price significantly?

Yes, directly and proportionally. A small single-story home might cost $150 to $300 while a large two-story runs $450 to $750. The per-square-foot rate itself stays relatively consistent; the total climbs because there is more surface area to cover and, on larger homes, more complex features to work around.

Should vinyl siding be pressure washed or soft washed?

Soft washing is generally the better choice for vinyl siding. Low-pressure spray combined with a house-wash detergent kills algae and mildew at the source rather than just displacing it. Standard pressure washing at 1,200 to 1,600 PSI with a downward spray angle is also acceptable for vinyl in good condition. Never aim high-pressure spray upward into the lap joints.

How do you estimate exterior square footage for washing?

Multiply your home's ground-level perimeter by the wall height from foundation to roofline. For a two-story home, that height is typically 18 to 22 feet. Subtract roughly 15 percent for windows and doors. The result is your approximate washable surface area. Run that number against the per-square-foot ranges above to build a realistic budget.

How much does it cost to wash a house before painting?

Pre-paint house washing costs the same as a standard wash, roughly $150 to $500 depending on home size and condition, though some painting contractors include it in their prep scope. The wash removes oxidation, dirt, and mildew that would cause premature adhesion failure under new paint. The surface needs 24 to 48 hours of dry time before paint application.