What Does Pressure Washing Cost in St. Louis?
Pressure washing pricing in St. Louis is primarily driven by surface type and square footage. Based on data from 38 verified local providers, here's what St. Louis homeowners can expect to pay in 2026.
A standard driveway cleaning in St. Louis typically costs $100–$250. House exterior washing runs $200–$600 depending on home size. Deck and patio washing averages $100–$300. Roof soft washing — a lower-pressure technique required for most roof surfaces — runs $250–$600 depending on roof area.
Pressure Washing Prices by Surface in St. Louis
These ranges reflect standard residential rates from local providers.
| Surface Type | Typical Price Range |
|---|---|
| Driveway (standard 2-car) | $100 – $250 |
| Walkway / Sidewalk | $50 – $150 |
| House Exterior (1,500 sq ft) | $200 – $400 |
| House Exterior (2,500 sq ft) | $300 – $600 |
| Deck or Patio (200–400 sq ft) | $100 – $300 |
| Fence (100 linear ft) | $100 – $250 |
| Roof Soft Washing (1,500 sq ft) | $250 – $450 |
| Roof Soft Washing (2,500 sq ft) | $350 – $600 |
Pressure Washing vs. Soft Washing — Cost Difference
Traditional pressure washing uses high-pressure water (2,000–4,000 PSI) to blast away dirt and stains. Soft washing uses lower pressure (500–1,500 PSI) combined with cleaning solutions to safely clean delicate surfaces. Soft washing is required for most house siding, roofs, and older wood.
Soft washing typically costs 10–25% more than standard pressure washing for the same surface area — due to the additional cleaning chemicals and longer dwell time. However, for surfaces like composite siding, cedar, or asphalt shingles, soft washing prevents damage that improper high-pressure washing would cause.
Factors That Affect Pressure Washing Cost in St. Louis
What drives your final quote in St. Louis:
- Surface size — Most providers price per square foot or per surface, with discounts for bundling multiple surfaces.
- Surface type — Soft washing for roofs and siding costs more than hard surface pressure washing.
- Stain severity — Heavy oil stains, mold, or algae require pre-treatment chemicals, adding $25–$75.
- Access — Two-story or high-access areas add $50–$150 to house and roof jobs.
- Bundling — Most ${city.name} companies offer discounts when you book multiple surfaces (driveway + house + deck) in the same visit.