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

Exterior Mold & Mildew Removal in Windsor, CO

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

From the free quote to the final rinse, exterior mold & mildew removal in Windsor, CO follows a simple process: inspect, protect, clean, rinse and check.

The right method for the job

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

What you can do yourself

  • 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.

Common mistakes to avoid

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

How we handle 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.

Serving Windsor, CO and nearby towns

In Colorado, strong sun fades siding and paint, and winter grime builds up along the bottom of walls. A gentle spring wash removes it without stripping a finish that the sun has already weakened.

Much of Colorado 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.

Some cities in Colorado limit outdoor water use, including washing hard surfaces with a hose, especially during drought declarations. Pressure washers use far less water than an open garden hose, but rules vary, so it's worth checking your city's current restrictions. Wash water should also be kept out of storm drains.

We provide exterior mold & mildew removal across Windsor (ZIP codes 80550 and 80551) and nearby towns including Severance (4.2 mi), Johnstown (9.7 mi), Milliken (10.5 mi) and Eaton (10.6 mi). Call (555) 010-0000 for a free quote in Windsor.

Exterior Mold & Mildew Removal: frequently asked questions

How much does exterior mold & mildew removal cost in Windsor, CO?

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 Windsor, CO

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

Soft Washing for Brick

Low-pressure wash. Brick is tough, but the mortar joints are softer than the brick itself, and older soft-fired brick can pit.

Typical $300-$800

Pressure Washing 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 $150-$600

Pressure Washing for Brick

Low-pressure wash. Brick is tough, but the mortar joints are softer than the brick itself, and older soft-fired brick can pit.

Typical $150-$600

Patio 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 $150-$400

House Washing for Stone & Stone Veneer

Low-pressure wash. Natural stone and manufactured stone veneer vary a lot.

Typical $300-$700

Soft Washing for Asphalt Shingle Roofs

Soft wash (no pressure). The black streaks on many asphalt roofs are a type of algae, often Gloeocapsa magma, that feeds on the limestone filler in shingles.

Typical $300-$800

Soft Washing

Low-pressure cleaning with a mild solution that kills mold, mildew and algae on siding, roofs and other delicate surfaces without damaging them.

Typical $300-$800

Driveway Cleaning for Brick

Low-pressure wash. Brick is tough, but the mortar joints are softer than the brick itself, and older soft-fired brick can pit.

Typical $150-$400

Roof Cleaning for Metal Roofs

Soft wash. Painted metal roofs collect dirt, mildew and oxidation chalk.

Typical $400-$1,000

Fence Cleaning for Vinyl Fencing

Soft wash. White vinyl fencing shows green algae, mildew and sprinkler stains quickly.

Typical $200-$600

House Washing for Aluminum Siding

Soft wash. Older aluminum siding often has a chalky, oxidized finish.

Typical $300-$700

Ready for a cleaner home or business?

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

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