Mon-Fri: 7AM-7PM, Sat: 8AM-5PM Licensed & Insured [email protected] Serving Oregon, WI

Exterior Mold & Mildew Removal in Oregon, WI

Killing and removing mold, mildew and algae from siding, decks, walkways and fences, with treatment that slows regrowth. Typical cost $250-$700.

When we handle exterior mold & mildew removal in Oregon, WI, it comes down to three things: protecting your plants and property, cleaning with the right method, and walking the job with you at the end.

Method and pressure

Soft washCleaning method

Is it time for exterior mold & mildew removal?

  • Black, green or gray spots and film
  • Slippery walkways and decks
  • Musty smell near shaded walls
  • Growth that returns soon after rinsing

Where the grime comes from

  • Shade, humidity and poor air flow
  • Organic debris and pollen
  • Surfaces that stay damp after rain or sprinklers

Safe steps for homeowners

  • Improve sun and air flow by trimming plants
  • Keep gutters and sprinklers from soaking walls
  • Clean small areas with an outdoor mildew cleaner, following the label

Not sure what you're looking at? The free stain identifier and safe pressure guide explain each stain and surface.

What can go wrong with DIY pressure washing

  • Blasting growth off without killing it, so it grows back fast
  • Mixing cleaning chemicals, which can release toxic gas
  • Damaging plants with runoff

Our process for exterior mold & mildew removal

  1. Identify surfaces and growth
  2. Protect plants and fixtures
  3. Apply a solution that kills the growth
  4. Rinse at low pressure
  5. Post-treat where helpful to slow regrowth

This service is for outdoor surfaces. Mold inside the home, in attics or in wall cavities needs a mold remediation specialist, not a pressure washing company.

Typical exterior mold & mildew removal prices

$250-$700Typical range for typical exterior growth on a home
2-4 hoursTypical time on site
Every 1-2 years in humid or shaded areasRecommended frequency

What moves the price:

  • Size: square footage of siding, roof or flatwork
  • Condition: heavy growth, old stains and peeling finishes take longer
  • Access: number of stories, roof pitch, slopes and how close we can park
  • Add-ons: sealing, gutter brightening and other services done in the same trip

These are typical U.S. ranges, not a quote. You get an exact price before any work starts. For a quick estimate, try the pressure washing cost calculator.

Local exterior mold & mildew removal for Oregon, WI

In Wisconsin, snow and slush that sit against the house leave a band of grime and mildew along the lower siding, and shaded north walls stay damp long after the thaw. A spring soft wash removes winter grime before it bakes on over the summer.

Much of Wisconsin has hard water. Sprinklers and misters leave white mineral spots on walls, windows, fences and pool tile, and those spots need a mineral-safe cleaner, not more pressure.

We provide exterior mold & mildew removal across Oregon (ZIP code 53575) and nearby towns including Rutland (3.7 mi), Fitchburg (4.9 mi), McFarland (7.7 mi) and Stoughton (8.5 mi). Call (555) 010-0000 for a free quote in Oregon.

Exterior Mold & Mildew Removal: frequently asked questions

How much does exterior mold & mildew removal cost in Oregon, WI?

Exterior Mold & Mildew Removal typically costs $250-$700 for typical exterior growth on a home, and usually takes 2-4 hours. The exact price depends on the size and condition, and you get it before any work starts. Call (555) 010-0000 for a free quote.

Do you use high pressure for exterior mold & mildew removal?

Exterior Mold & Mildew Removal is done with soft wash. Low pressure and the right solution remove growth and dirt without damaging the surface, and the growth takes longer to come back.

Is exterior mold & mildew removal safe for my plants and pets?

We pre-wet plants and lawns, keep cleaning solutions diluted to what the surface needs, and rinse landscaping again when we finish. Keep pets and children inside until surfaces are rinsed and dry.

How often should I schedule exterior mold & mildew removal?

Every 1-2 years in humid or shaded areas. Shade, nearby trees, humidity and heavy traffic mean more frequent cleaning; sunny, dry spots can go longer. Our free cleaning frequency tool gives a recommendation for your climate.

What if it rains on the day?

Light rain doesn't stop most washing, but heavy rain, high wind, lightning and freezing temperatures do. If the weather isn't right, we reschedule at no charge. Our work is backed by a satisfaction guarantee.

More services

Popular Exterior Cleaning Services in Oregon, WI

Paver Cleaning & Sealing for Pavers

Pressure wash with a surface cleaner. Cleaning concrete and brick pavers removes weeds, moss and stains, but some joint sand washes out with them.

Typical $600-$1,800

Rust Stain Removal for Stucco

Soft wash. Traditional stucco is porous and holds moisture, which is why it streaks green and black in humid and shaded spots.

Typical $150-$500

Pre-Paint Washing for Wood Siding

Soft wash. Painted and stained wood siding grows mildew and loses its finish faster on the shaded and weather-facing sides.

Typical $250-$600

Pre-Paint Washing for Stucco

Soft wash. Traditional stucco is porous and holds moisture, which is why it streaks green and black in humid and shaded spots.

Typical $250-$600

Roof Cleaning

Soft wash roof cleaning that removes black streaks, moss and lichen without the granule damage pressure washing causes.

Typical $400-$1,000

Storefront Cleaning

Storefront and entrance cleaning: sidewalks, walls, signs and windows, usually before or after business hours.

Typical $150-$500

Gutter Cleaning

Clearing leaves and debris from gutters and flushing downspouts so water drains away from the house.

Typical $150-$350

Parking Lot & Garage Cleaning

Cleaning parking garages, lots and loading areas to remove oil, grime, gum and litter.

Typical $500-$3,000

Soft Washing for Stucco

Soft wash. Traditional stucco is porous and holds moisture, which is why it streaks green and black in humid and shaded spots.

Typical $300-$800

Pool Deck Cleaning for Flagstone

Low-to-moderate pressure wash. Flagstone covers several stones, including sandstone, slate, bluestone and limestone, and they react differently to pressure and chemicals.

Typical $200-$500

Solar Panel Cleaning

Gentle solar panel cleaning with soft brushes and purified water, never pressure washing.

Typical $150-$350

Driveway Cleaning for Asphalt

Low-to-moderate pressure wash. Asphalt is softer than concrete and is held together by its binder, so it is washed at lower pressure.

Typical $150-$400

Ready for a cleaner home or business?

Get a free pressure washing quote in Oregon, WI. Tell us what needs cleaning and we'll give you a price and the next available date.

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