Pressure washing siding typically costs $150-$800, with many standard homes priced near $350. The final estimate depends on siding area, soil buildup, access, cleaning method, local labor rates, and whether gutters, trim, or other surfaces are included.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Whole-home siding wash | $150 | $350 | $800 | Typical detached home; siding only |
| Price per siding area | $0.20 per sq ft | $0.45 per sq ft | $0.80 per sq ft | Wall area, not interior floor area |
| Small home or townhome | $125 | $250 | $450 | Usually simpler access and less siding |
| Large or complex home | $450 | $700 | $1,200 | May include multiple stories or heavy buildup |
Typical siding-wash prices by house size
Most contractors estimate by the exterior wall area being cleaned or set a minimum charge for a small job. A one-story home with 1,000-1,500 square feet of siding may cost $150-$350; a two-story home with 2,000-3,000 square feet may run $350-$800. Floor area is only a rough clue because home shape, number of walls, and gables affect siding square footage.
A practical planning figure is about $0.30-$0.60 per square foot of siding for routine cleaning. Higher rates can apply for heavy algae, difficult access, or delicate surfaces. Assumptions: standard vinyl or painted siding, ordinary soil, normal access, and no major repairs.
What siding-wash quotes include for labor and supplies
Labor commonly accounts for most of the bill. A crew may use low-pressure soft washing and siding-safe detergent rather than forceful pressure, especially on vinyl, painted wood, or older finishes. The quote should state which walls are included, whether detergent is included, and whether rinsing plants and nearby surfaces is part of the service.
| Quote component | Typical price | What changes the charge | Common billing basis |
|---|---|---|---|
| Labor | $100-$450 | Access, home height, and soil level | $50-$100 per crew hour |
| Detergent and supplies | $10-$60 | Cleaner type and amount of buildup | $0.02-$0.08 per sq ft |
| Equipment and setup | $25-$100 | Travel, hose run, and setup needs | Often included or minimum fee |
| Extra services | $50-$250 | Gutters, soffits, porch, or deck | Per item or additional area |
For a straightforward job, labor is often the largest variable, while equipment and cleaning solution are usually bundled into the quote.
How siding material and buildup change the estimate
Vinyl and fiber-cement siding are often straightforward to clean when the finish is sound. Painted wood and older siding may need lower pressure and more careful handwork to limit water intrusion or finish damage. Contractors may use soft washing, applying detergent and rinsing at low pressure, rather than directing a high-pressure stream at seams.
Light dust or pollen can fit the lower end of a quote; thick algae, mildew, or years of grime may add 15%-40% for extra treatment or slower cleaning. A home with 2,500 square feet of siding may pay roughly $500-$1,000 if buildup is extensive or the surfaces require special handling. Ask whether the price covers treatment and a final rinse, rather than pressure alone.
When two-story walls and tight access raise labor time
A one-story house with clear access may take 1-3 hours on site. A larger two-story home can take 3-6 hours, particularly when the crew must move ladders, protect landscaping, or work around fences and narrow side yards. Steep slopes, delicate plants, blocked outdoor faucets, and long hose runs can add setup time or require extra crew members.
For labor-based estimates, $50-$100 per crew hour is a useful comparison range, but many companies quote a flat project price and enforce a $125-$250 minimum. Confirm that the contractor can reach upper siding safely without directing high pressure under laps or into vents.
Regional siding-wash rates from rural homes to cities
Prices in high-cost metro areas may run 15%-35% above a national midrange, while rural quotes can be 10%-20% lower when travel is short and contractor demand is moderate. Remote locations may reverse that advantage if a company adds a travel fee. Warm, humid regions can also see more frequent algae growth, increasing the chance that a home needs deeper treatment.
For a standard job that might cost $350 in a mid-priced market, a comparable quote could land around $400-$475 in an expensive city or $280-$315 in a lower-cost rural market. These are directional comparisons, not fixed regional rates. Compare local quotes with the same wall area, included surfaces, and cleaning method.
Extra charges for gutters, mold treatment, and water access
Gutter exterior brightening may add $50-$150, while cleaning soffits or porch surfaces can add $50-$200 depending on area and buildup. Heavy organic growth may require a stronger siding-safe treatment, adding about $50-$200. Some contractors charge $25-$75 for difficult water access or long-distance travel; others include these costs in the base price.
Clarify whether the estimate includes moving outdoor furniture, covering outlets, rinsing plants, and handling runoff. Mold or mildew visible on siding may need treatment, but a routine wash is not a substitute for investigating water leaks or persistent moisture. Get add-ons itemized so a low base quote does not conceal the likely total.
Pressure washing versus soft washing vinyl siding
Soft washing typically costs about the same as ordinary siding washing, often $0.30-$0.70 per square foot, because the contractor may spend more time applying cleaner but less time using force. High-pressure washing can appear cheaper or faster, but improper technique can force water behind siding, strip paint, or damage caulk and screens.
DIY equipment rental may cost $50-$100 per day, with another $15-$50 for detergent, but the total does not include transportation, setup, or the risk of damage. A professional wash may be a better value for two-story walls or fragile finishes. For vinyl, compare cleaning methods and operator experience, not just machine pressure or the lowest bid.
Ways to lower a siding-cleaning quote
Request quotes during slower periods, often fall or early spring, when local schedules may be more flexible. Group siding with gutters or another exterior service only if the combined price is lower than separate estimates. Move furniture and clear access to hose connections before the crew arrives, but leave ladder work and chemical handling to trained workers.
Provide photos and approximate wall dimensions when requesting bids, then ask for a written scope covering siding material, treatment, rinse, access, and add-on fees. Avoid paying for premium stain removal if ordinary washing is sufficient, and do not pressure-wash sound siding repeatedly just to meet an arbitrary schedule. The best savings usually come from a clear scope and comparable local bids, not skipping necessary low-pressure treatment.