Pressure Washing Cost in St. Louis, MO

Homeowners in St. Louis benefit from below-average pressure washing prices compared to the national average. The lower cost of living in the St. Louis metro area translates directly into more affordable labor and service rates. For a typical house exterior wash, expect to pay between $180 and $450 in 2026.

Here is a breakdown of average 2026 prices for common pressure washing services in St. Louis:

Prices vary based on the size of the surface, its condition, accessibility, and the specific contractor. Use our free calculator above for a personalized estimate tailored to your property.

St. Louis's cold winters create a distinct pressure washing cycle. extremely humid summers produce aggressive mold and mildew growth on brick and siding, while ice storms and road salt create spring cleaning demands for concrete and stone surfaces Spring pressure washing is practically a rite of passage here — clearing away months of salt residue, sand, and grime that accumulated over the winter.

Labor rates in St. Louis are below the national average, which keeps pressure washing prices competitive. The relatively lower cost of living means contractors can offer quality work at accessible price points. However, do not assume the cheapest quote is always the best — verify that any contractor carries liability insurance and uses proper equipment.

The most commonly pressure-washed surfaces in St. Louis include brick facades, concrete driveways, vinyl siding, wooden decks. Each material responds differently to pressure washing — for example, brick facades requires different PSI settings than wrought iron fences. A knowledgeable local contractor will adjust their approach based on the material, its age, and current condition.

In St. Louis, pressure washing is a distinctly seasonal service. The best time to schedule is mid-spring (April–May) once overnight temperatures consistently stay above 40°F and the last frost has passed.

Spring cleaning removes the salt residue, sand, and winter grime that accumulated over months of cold weather. Many St. Louis homeowners pair pressure washing with other spring home maintenance tasks like gutter cleaning and deck staining.

A second wash in early fall (September–October) can prep surfaces for winter by removing organic matter that traps moisture and accelerates freeze-thaw damage. Avoid scheduling from November through March — freezing temperatures can damage equipment and cause water to ice on surfaces, creating safety hazards.

St. Louis homes and properties feature a mix of materials shaped by the region's architecture and climate. Here are the surfaces our calculator covers most often in the St. Louis metro area:

Brick facades in St. Louis are durable but porous — they absorb road salt and pollution that causes white efflorescence staining. Pressure washing at 1,500–2,500 PSI with an appropriate masonry cleaner removes these deposits without damaging mortar joints.

Concrete driveways in St. Louis take a beating from winter road salt and de-icing chemicals. Spring pressure washing is essential to remove the white salt residue before it causes further surface deterioration. A surface cleaner attachment delivers the most even results on flat concrete.

Vinyl siding in St. Louis accumulates grime and road splash during winter months. Spring soft washing restores the original color and removes pollution deposits that can cause permanent discoloration if left untreated.

Wooden Decks in St. Louis endure freeze-thaw cycles that can crack and splinter untreated wood. Spring pressure washing followed by staining or sealing helps maintain structural integrity and prevents moisture from getting trapped in the grain.

Stone Retaining Walls in St. Louis are durable but can develop discoloration from organic growth or mineral deposits. Pressure washing at moderate settings with a pH-appropriate cleaner restores the natural appearance without etching the stone surface.