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Patio Cleaning for Flagstone in Your Area

Low-to-moderate pressure wash for flagstone. Patio cleaning for concrete, pavers and natural stone, with the pressure and cleaner matched to the material. Typical cost $150-$400.

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Looking for patio cleaning for flagstone in your area? We look at the surface first, choose the right method and pressure for it, and give you a price before any work starts. With flagstone, the right approach is low-to-moderate pressure wash.

Method and pressure

Low-to-moderate pressure washCleaning method
Usually 1,000-2,000 PSI, depending on the stonePressure

Cleaning solution: A stone-appropriate cleaner, tested on a small area first.

What to know about cleaning flagstone

Flagstone covers several stones, including sandstone, slate, bluestone and limestone, and they react differently to pressure and chemicals. Softer sandstone flakes if blasted, and mortar joints need care.

Avoid: High pressure on soft or layered stone, and acids on limestone.

How often: Every 1-2 years.

When to book patio cleaning for flagstone

  • Green or black growth between pavers or on shaded concrete
  • Grease spots near the grill
  • Stains from planters, leaves and furniture
  • Weeds in the joints
  • White chalky haze on pavers or stone

Where the grime comes from

  • Shade and damp soil around the patio
  • Cooking grease and food spills
  • Rust from metal furniture and planters
  • Efflorescence (salts) rising out of masonry

Easy upkeep between cleanings

  • Move planters now and then so they don't leave rings
  • Clean grill grease quickly with dish soap and hot water
  • Pull weeds from joints before they spread
  • Sweep often so leaves don't stain

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

Common mistakes to avoid

  • Blowing joint sand out of pavers
  • Etching or pitting soft stone like travertine and sandstone
  • Acid cleaners on limestone and travertine
  • Stripping an existing sealer unevenly

What happens on the day

  1. Check the patio material and any sealer
  2. Move furniture and protect nearby plants
  3. Pre-treat growth, grease and stains
  4. Clean with the right pressure and tools
  5. Rinse, re-sand joints if needed, and walk the patio with you

How much does patio cleaning for flagstone cost?

$150-$400Typical range for a typical backyard patio
1-2 hoursTypical time on site
Once a year, more often in shadeRecommended 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.

Other services for flagstone

Patio Cleaning for Flagstone in your area

We provide patio cleaning for flagstone across all 50 states, Washington, DC and Puerto Rico. Pick your state to see local details:

Patio Cleaning for Flagstone: frequently asked questions

How much does patio cleaning for flagstone cost?

Patio Cleaning for Flagstone typically costs $150-$400 for a typical backyard patio, and usually takes 1-2 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 patio cleaning for flagstone?

For flagstone: usually 1,000-2,000 PSI, depending on the stone. What we avoid: high pressure on soft or layered stone, and acids on limestone. The cleaning solution does most of the work, followed by a gentle rinse.

Is patio cleaning for flagstone 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 patio cleaning for flagstone?

Every 1-2 years. 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.

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Ready for a cleaner home or business?

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

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