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

Exterior Mold & Mildew Removal in Burlington, WA

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 Burlington, WA, 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

When to book 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

What causes the dirt and stains

  • 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.

How much does exterior mold & mildew removal cost?

$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 Burlington, WA and nearby towns

Green algae on siding is very common in Washington, especially on north walls and under trees. A soft wash kills it, and keeping plants trimmed back helps the walls dry between rains.

Near the coast, salt air leaves a film on siding, windows, screens and railings that dulls finishes and speeds up corrosion on metal. Regular rinsing and washing help protect them.

We provide exterior mold & mildew removal across Burlington (ZIP code 98233) and nearby towns including Mount Vernon (3.8 mi), Sedro-Woolley (4.5 mi), Anacortes (13.4 mi) and Stanwood (16.3 mi). Call (555) 010-0000 for a free quote in Burlington.

Exterior Mold & Mildew Removal: frequently asked questions

How much does exterior mold & mildew removal cost in Burlington, WA?

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 Burlington, WA

Efflorescence Removal for Concrete

Pressure wash with a surface cleaner. Plain broom-finish concrete is the surface pressure washing is made for.

Typical $200-$600

Pressure Washing

High-pressure cleaning for driveways, walkways, patios, pool decks and other hard surfaces, with the pressure matched to each surface.

Typical $150-$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

Deck Cleaning for Cedar

Low-pressure wash. Cedar decks and fences turn silver-gray as the surface weathers.

Typical $250-$600

House 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 $300-$700

Graffiti Removal 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 $200-$800

Graffiti Removal for Concrete

Pressure wash with a surface cleaner. Plain broom-finish concrete is the surface pressure washing is made for.

Typical $200-$800

HOA & Apartment Pressure Washing for Concrete

Pressure wash with a surface cleaner. Plain broom-finish concrete is the surface pressure washing is made for.

Typical $800-$5,000

Sidewalk & Walkway Cleaning 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 $100-$250

Pre-Paint Washing

Washing siding and trim before painting or staining so new paint bonds to a clean surface.

Typical $250-$600

Soft 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 $300-$800

Paver Cleaning & Sealing

Paver cleaning, re-sanding with polymeric sand and sealing to lock joints, deter weeds and bring back color.

Typical $600-$1,800

Ready for a cleaner home or business?

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

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