Professional Exterior Wall & Facade Cleaning in Cape Town

A Fresh Look For Your Entire Property

Professionals in our Northern Suburbs, Cape Town network use safe, effective pressure washing and soft washing techniques to remove dirt, mould, and stains from any type of wall surface.

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✔ Safe for Paint, Plaster & Brick ✔ Mould & Algae Eradication ✔ Residential & Commercial ✔ Fast, No-Obligation Quotes

Restore Your Walls, Protect Your Paint

Dirty exterior walls can make an entire property look neglected. Over time, they collect:

  • Dark mould and green algae
  • Dust, cobwebs, and airborne dirt
  • Stains from pollution and rain
  • Grime on boundary walls and fences

A professional wall cleaning service not only provides an instant visual facelift but also protects your paintwork from being damaged by invasive organic growth, saving you money on future repainting.

A clean, freshly washed boundary wall

Our Service Areas are Cape Town, Northern Suburbs

We connect you with trusted wall pressure cleaning professionals across the Cape Town Northern Suburbs area. Our network currently covers the following suburbs and more:

Don't see your area, yet? No problem, we are expanding rapidly. Get in touch and we'll find a pro near you.

Our wall pressure cleaning is part of our broader pressure cleaning service

The Right Cleaning Method for Every Wall

Using the wrong pressure can cause irreparable damage to your walls. The professionals in our network are trained to select the perfect technique for every surface.

Why Your Walls Need Professional Cleaning

Exterior walls take a beating from the elements. What starts as light discolouration becomes stubborn staining that detracts from your property's appearance and can actually damage surfaces over time.

Benefits of wall cleaning:

  • Instant curb appeal improvement
  • Removes health hazards (mould, mildew, allergens)
  • Prepares surfaces for painting or selling
  • Prevents long-term damage from organic growth
  • Extends the life of your paintwork and cladding
  • Increases property value

What Walls Do We Clean?

Residential Walls

  • House exteriors: All cladding types
  • Boundary walls: Brick, block, rendered
  • Retaining walls: Concrete, stone, timber
  • Garden walls: Feature walls, planters
  • Fences: Colorbond, timber, masonry
  • Garage walls: Internal and external
  • Pool surrounds: Walls and screens

Commercial Walls

  • Shopfronts: Street-facing walls
  • Office buildings: Multi-story exteriors
  • Warehouses: Industrial cladding
  • Strata complexes: Common area walls
  • Car parks: Concrete walls and pillars
  • Schools: External and internal walls
  • Storage facilities: Roller door surrounds

We Clean All Wall Types Safely

Different wall surfaces require different cleaning approaches. We match our method to your material:

Common Wall Stains We Remove

Organic Growth

  • Black mould: Thrives in damp, shaded areas
  • Green algae: Common on north-facing walls
  • Lichen: Orange/grey crusty growth
  • Moss: Thick green patches in crevices
  • Mildew: White or grey powdery substance

Environmental Staining

  • Dirt & dust: Airborne pollution buildup
  • Carbon staining: Dark streaks from vehicle exhaust
  • Water stains: Run-off from gutters or sprinklers
  • Rust staining: From metal fixtures or nails
  • Spider webs: And insect nesting

Efflorescence & Mineral Deposits

  • White salt deposits: Common on brick and concrete
  • Calcium buildup: From hard water or sprinklers
  • Lime scale: On rendered surfaces

Other Common Issues

  • Paint splatter: From nearby painting work
  • Graffiti: Spray paint and marker removal
  • Oil stains: From vehicles or machinery
  • Bird droppings: Acidic and damaging
  • Pollen & sap: From nearby trees

Our Wall Cleaning Process

Step 1: Assessment
We inspect wall type, condition, and staining to determine the safest, most effective cleaning method.

Step 2: Preparation
Protect surrounding areas, plants, and fixtures. Pre-wet sensitive surfaces.

Step 3: Pre-Treatment
Apply specialized cleaning solution to break down stubborn stains, mould, and organic growth.

Step 4: Cleaning
Soft wash or controlled pressure cleaning based on surface type. Never use damaging high pressure on delicate materials.

Step 5: Rinse & Inspect
Thorough rinse to remove all cleaning agents. Final inspection to ensure complete cleaning.

Step 6: Clean-Up
Remove all equipment and leave the area spotless.

Soft Wash vs Pressure Wash: We Choose the Right Method

When We Use Soft Washing

Low-pressure application with cleaning solution—ideal for delicate surfaces:

  • Painted walls (any type)
  • Rendered surfaces
  • Weatherboard and cladding
  • Older brick with mortar concerns
  • Fiber cement sheeting
  • Around windows and fixtures

Why soft washing works better: Kills mould and algae at the source rather than just blasting it away. Results last longer because organisms are eliminated, not just removed.

When We Use Pressure Washing

Controlled pressure for durable surfaces that need deeper cleaning:

  • Unpainted brick walls
  • Concrete block walls
  • Stone walls and retaining walls
  • Heavily soiled industrial surfaces
  • Garage floors and walls (concrete)

Important: We never use excessive pressure that can damage mortar, strip paint, or force water behind cladding. Controlled pressure only.

Why DIY Wall Cleaning Often Goes Wrong

We regularly see damage caused by DIY attempts or inexperienced operators:

Professional difference: We know which surfaces can handle pressure, which need soft washing, and exactly how much cleaning solution to use. Experience matters.

Wall Cleaning Before Painting

Planning to repaint? Professional wall cleaning is essential preparation that painters often recommend:

Timing: Clean walls at least 48-72 hours before painting to ensure complete drying. We can coordinate with your painter.

How Often Should You Clean Your Walls?

General Recommendation: Every 2-3 Years

Regular cleaning prevents buildup and maintains appearance. However, frequency depends on several factors:

Clean More Frequently If:

  • Heavy tree coverage: Shade and debris increase growth
  • Coastal location: Salt accelerates staining
  • High humidity climate: Mould thrives in moisture
  • North-facing walls: More sun = more algae
  • Commercial properties: First impressions matter
  • Near busy roads: Vehicle pollution and dust

Signs It's Time to Clean

  • Visible black, green, or orange staining
  • Dark streaks running down walls
  • Dull, dirty appearance
  • Moss or lichen growth in cracks
  • Preparing to sell your property
  • Before repainting
  • After construction or renovation work

Preventative maintenance: Regular cleaning is far more cost-effective than replacing damaged cladding or repainting prematurely.

What to Expect During Service

Before We Arrive

Minimal preparation needed:

  • Move outdoor furniture away from walls if possible
  • Remove or protect delicate plants near walls
  • Ensure we have access to water supply
  • Close windows and doors
  • Inform us of any wall damage or loose materials

During the Service

  • Typical timeframe: 2-4 hours (depends on wall size)
  • Some water runoff is normal
  • Mild noise from equipment
  • We protect your property throughout

After We Finish

  • Walls will be wet for several hours
  • Complete drying: 24-48 hours depending on weather
  • Immediate visible improvement
  • Soft wash treatments continue working for weeks
  • All equipment removed, area cleaned
  • Walk-through inspection with you

You Don't Need to Be Home

As long as we have access to the walls and a water source, you can be elsewhere. We'll communicate progress and send before/after photos.

Wall Cleaning Pricing

Typical investment: R1500+ depending on size and condition

What Affects the Price?

Free quotes: We provide detailed, no-obligation quotes. Most quotes can be done via photos, or we can visit the property.

Fixed pricing: No surprises—the quote is the price you pay.

General Price Guide: Please view our general price guide.

Why Choose Fonster for Wall Cleaning?

  • Experience matters: 5 years cleaning walls professionally
  • Surface knowledge: We know every wall type and the right method
  • Fully insured: Covered by insurance companies
  • Professional equipment: Commercial-grade, not hardware store rental
  • Eco-friendly solutions: Safe for your family, pets, and plants
  • No damage guarantee: Correct pressure for every surface
  • Trained technicians: Our team is expertly trained
  • Before/after photos: See the transformation
  • Fixed pricing: No hidden costs
  • Satisfaction guarantee: We stand behind our work
  • Local business: Servicing Cape Town, Northern Suburbs for 5 years

Get Your Free Wall Cleaning Quote

Let us know what you need cleaned, and a local expert will provide a fast, free quote.

Your details are safe and only used to provide your quote.

Frequently Asked Questions

Can pressure cleaning damage exterior walls?

No — when done correctly. Exterior wall pressure cleaning uses controlled pressure levels based on the wall material to remove dirt, mould, and algae without damaging paint, plaster, or brickwork.

What types of walls can be pressure cleaned?

Most exterior walls can be cleaned, including painted walls, plastered surfaces, face brick, stone cladding, and concrete boundary walls attached to the property.

Will pressure cleaning remove mould and algae from walls?

Yes. Pressure cleaning is very effective at removing mould, algae, mildew, and pollution buildup, especially on walls exposed to shade or moisture.

Is wall pressure cleaning safe for older homes?

Yes, but extra care is taken. Older homes often require lower pressure settings and gentler techniques to protect aging paintwork and finishes.

How often should exterior walls be pressure cleaned?

Most homes benefit from exterior wall pressure cleaning every 18 to 24 months, depending on exposure to weather, trees, and moisture.

How much does wall pressure cleaning cost?

The cost depends on wall size, height, surface type, and the level of buildup. A clear, no-obligation quote is provided after a quick assessment.

Ready for a Spotless Exterior?

A professional wall clean is one of the most cost-effective ways to improve your property's appearance.

Request Your Free Wall Cleaning Quote