WA Pressure Wash Blog

Expert tips, advice and insights on exterior cleaning in Perth

Why Perth Driveways Turn Black After Winter

Have you noticed your driveway turning black, patchy or streaky after winter? This is one of the most common problems Perth homeowners face.

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Here's why it happens:

  1. Moisture sits on the surface for longer during winter.
  2. Algae and mould begin growing in shaded or damp areas.
  3. Dirt and road grime settle into the pores of concrete and paving.
  4. Perth's sandy soil mixes with moisture to create dark surface stains.

This black build-up is not just surface dirt — it's living organic growth. Regular pressure washing helps prevent long-term staining and keeps your driveway looking clean all year round.

If your driveway is already black, a deep clean and optional sealing can restore it completely.

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How Often Should I Clean My Gutters in Perth?

In Perth's climate, gutters should be cleaned every 6–12 months. Homes near trees may require cleaning more frequently.

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Why regular gutter cleaning is important:

  • Prevents leaks and roof damage
  • Stops water overflowing into walls and foundations
  • Reduces fire risk in summer
  • Prevents pests such as birds and insects nesting
  • Extends the lifespan of your roof and guttering

The best times to clean gutters in Perth are:

  • After autumn when leaves drop
  • Before winter rains begin
  • Before summer fire season

Routine maintenance is cheaper than fixing major water damage later on.

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Is Pressure Washing Safe for My House Paint?

Many Perth homeowners worry that pressure washing their house could damage the paint. The truth is: using high pressure on painted walls can cause damage, but professional cleaners use a safe method called soft washing.

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Soft washing uses:

  • Low pressure
  • Special detergents that remove mould and dirt
  • Gentle rinsing

This method safely removes grime, cobwebs and mould without lifting or damaging paint. Soft washing is the preferred method for rendered, painted and cladded homes in Perth.

High pressure is only used on hard surfaces such as concrete, paving and brick.

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Why Solar Panels Lose Efficiency Without Cleaning

Solar panels in Perth collect dust, sand, bird droppings and pollution. Over time, this reduces the amount of light reaching the panels. A dirty solar panel can lose between 10% and 30% efficiency.

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Common causes of dirty panels:

  • Coastal salt spray
  • Dust from Perth's dry summers
  • Bird activity
  • Tree debris
  • Air pollution buildup

Cleaning your solar panels once or twice a year helps maintain maximum output and lowers your electricity bill. We use pure water and soft brushes designed specifically for solar panel safety.

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Roof Cleaning in Perth: What Homeowners Need to Know

Perth roofs collect moss, lichen, dust, leaves and pollution over time. Roof cleaning helps protect your roof and improves the appearance of your home.

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What roof cleaning removes:

  • Moss and lichen growth
  • Black mould staining
  • Bird mess
  • Leaf debris and dirt buildup

Tile roofs, Colorbond and metal roofs all benefit from cleaning but require different techniques. Heavy buildup may require a full-day clean or even 1–2 days depending on size and access.

A clean roof lasts longer, looks better and reduces the risk of leaks and water damage.

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The Cost of Pressure Washing in Perth

Pressure washing prices in Perth vary depending on the surface, size and level of dirt. Here is a general guide to typical pricing.

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Typical prices:

  • Driveway cleaning: $250–$450
  • Patio or paving clean: $250–$400
  • House wash: $800–$1000
  • Gutter cleaning: $250–$500
  • Roof cleaning: $800–$2,500
  • Window cleaning: $250–$600

Extra factors that influence price:

  • Level of moss or mould
  • Two-storey access
  • Large or sloped driveways
  • Heavy staining or oil marks

Professional cleaning is often cheaper than repairing damage caused by dirt, mould or blocked gutters.

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5 Signs Your Gutters Are Blocked

Blocked gutters can cause serious and expensive problems. Here are the most common signs Perth homeowners should look out for.

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  1. Water overflowing during rain
  2. Sagging gutters full of debris
  3. Plants or weeds growing from gutters
  4. Water stains down exterior walls
  5. Birds or insects nesting on your roofline

If you notice one or more of these signs, it's time for a professional gutter clean. Regular maintenance helps protect your home from leaks and water damage.

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Driveway Sealing vs No Sealing in WA Heat

WA's harsh sun and weather conditions can quickly damage unsealed driveways. Sealing provides protection and extends the life of your concrete or paving.

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Benefits of sealing:

  • Protects against UV fading
  • Stops stains soaking in
  • Prevents mould and algae buildup
  • Makes cleaning easier and faster
  • Enhances colour and appearance

Unsealed driveways absorb oil, dirt and moisture, leading to long-term staining and surface erosion. Sealing is a cost-effective way to protect your outdoor surfaces.

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How to Prepare Your Home for an Exterior House Wash

Preparing your home for a house wash ensures the best results. Here's what to do before we arrive.

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  1. Close all windows and doors tightly.
  2. Move outdoor furniture away from the house.
  3. Keep pets inside or in a secure area.
  4. Remove delicate items near walls.
  5. Let us know if any areas are sensitive or recently painted.

Our soft wash method is safe for all exterior surfaces and is designed to remove mould, cobwebs and dirt without damaging paint.

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Does Pressure Washing Increase Property Value?

Yes. Exterior cleaning is one of the most effective ways to improve the appearance of your home before selling.

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Pressure washing can:

  • Brighten driveways and paths
  • Remove mould and stains
  • Make the exterior look newer
  • Create a strong first impression
  • Increase buyer appeal

Real estate agents often recommend cleaning driveways, gutters, windows and exterior walls before photography. A clean exterior makes a home look more valuable and well-maintained.

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How to Remove Red Dirt Stains in Perth Homes

Perth's red dirt can stain walls, paving and driveways. The iron-rich soil bonds strongly to surfaces, making it difficult to remove without professional equipment.

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Red dirt stains are common after:

  • Construction work
  • Windy days
  • Gardening
  • Car tyres carrying dirt onto driveways

Professional pressure washing breaks down and removes the staining safely, restoring your surfaces without stripping paint or damaging render.

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Should You Clean Solar Panels Yourself?

Cleaning solar panels yourself may seem simple, but it can be risky. Here's what you need to know about the risks involved.

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Risks include:

  • Falling from roof height
  • Scratching the glass with incorrect brushes
  • Using tap water that leaves mineral streaks
  • Damaging wiring or connections
  • Invalidating panel warranties

Professional cleaners use pure water and soft brushes that clean safely without leaving residue. For most homes, solar panels should be cleaned once or twice a year.

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Why Soft Washing Is Better Than High Pressure

Soft washing is the safest and most effective method for cleaning house exteriors. Here's why it's preferred over high pressure washing.

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Reasons soft washing is preferred:

  • Uses low pressure to avoid paint damage
  • Removes mould at the source
  • Safe for render, cladding and weatherboard
  • Better results than high pressure on delicate surfaces

High pressure should only be used on hard surfaces such as concrete, paving and brick. For painted homes, soft washing is the gold standard.

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The Best Time of Year to Pressure Wash in Perth

Perth's climate makes exterior cleaning important all year round, but some seasons are better for certain services.

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Best times to pressure wash:

  • Late winter to early spring: remove mould and winter buildup
  • Summer: clean dust and stains before cooler weather
  • Before selling your home: boost kerb appeal

Gutters are best cleaned:

  • After autumn leaf drop
  • Before winter rains
  • Before summer fire season

Regular cleaning prevents long-term damage and keeps your home looking fresh throughout the year.

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